created free-standing project skeleton.

59 files changed, 3945 insertions, 0 deletions

diff --git a/COPYING.PTYCON b/COPYING.PTYCON
new file mode 100644
index 0000000..5b23718
--- /dev/null
+++ b/COPYING.PTYCON
@@ -0,0 +1,20 @@
+/*****************************************************************************/
+/*                                                                           */
+/*  ptycon: a pty-console bridge                                             */
+/*                                                                           */
+/*  Copyright (C) 2016  Z. Gilboa                                            */
+/*                                                                           */
+/*  This program is free software: you can redistribute it and/or modify     */
+/*  it under the terms of the GNU General Public License as published by     */
+/*  the Free Software Foundation, either version 2 of the License, or        */
+/*  (at your option) version 3 of the License.                               */
+/*                                                                           */
+/*  This program is distributed in the hope that it will be useful,          */
+/*  but WITHOUT ANY WARRANTY; without even the implied warranty of           */
+/*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the             */
+/*  GNU General Public License for more details.                             */
+/*                                                                           */
+/*  You should have received a copy of the GNU General Public License        */
+/*  along with this program. If not, see <http://www.gnu.org/licenses/>.     */
+/*                                                                           */
+/*****************************************************************************/
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..01db9bd
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,10 @@
+  ptycon: a pty-console bridge
+  ----------------------------
+
+  Copyright (C) 2016  Z. Gilboa
+
+  This library is currently released under the GPLv2 and GPLv3 (see
+  COPYING.PTYCON for the relevant text). If you wish to use this
+  library with a different license, please contact the author
+  at <writeonce at midipix dot org> and briefly describe the type
+  of license (or license exception) that you would like to obtain.
diff --git a/Makefile.in b/Makefile.in
new file mode 100644
index 0000000..8d3e543
--- /dev/null
+++ b/Makefile.in
@@ -0,0 +1,396 @@
+PACKAGE 		= @package@
+NICKNAME 		= @nickname@
+PROJECT_DIR 		= @project_dir@
+GIT_REFERENCE_INDEX	= @git_reference_index@
+CUSTOM_INSTALL_HEADERS  = @custom_install_headers@
+AVOID_VERSION		= @avoid_version@
+
+BUILD 			= @build@
+HOST 			= @host@
+TARGET 			= @target@
+ARCH 			= @arch@
+COMPILER 		= @compiler@
+TOOLCHAIN		= @toolchain@
+SYSROOT 		= @sysroot@
+CROSS_COMPILE 		= @cross_compile@
+SHELL 			= @shell@
+
+CFLAGS_COMMON 		= @cflags_common@
+CFLAGS_DEBUG 		= @cflags_debug@
+CFLAGS_CMDLINE 		= @cflags_cmdline@
+CFLAGS_CONFIG 		= @cflags_config@
+CFLAGS_SYSROOT 		= @cflags_sysroot@
+CFLAGS_OS		= @cflags_os@
+CFLAGS_SITE		= @cflags_site@
+CFLAGS_PATH 		= @cflags_path@
+CFLAGS_STRICT 		= @cflags_strict@
+CFLAGS_UTIL 		= @cflags_util@
+CFLAGS_LAST 		= @cflags_last@
+CFLAGS_ONCE 		= @cflags_once@
+
+LDFLAGS_COMMON 		= @ldflags_common@
+LDFLAGS_DEBUG 		= @ldflags_debug@
+LDFLAGS_CMDLINE 	= @ldflags_cmdline@
+LDFLAGS_CONFIG 		= @ldflags_config@
+LDFLAGS_SYSROOT 	= @ldflags_sysroot@
+LDFLAGS_PATH 		= @ldflags_path@
+LDFLAGS_STRICT 		= @ldflags_strict@
+LDFLAGS_UTIL 		= @ldflags_util@
+LDFLAGS_LAST 		= @ldflags_last@
+LDFLAGS_ONCE 		= @ldflags_once@
+
+PE_SUBSYSTEM 		= @pe_subsystem@
+PE_IMAGE_BASE 		= @pe_image_base@
+PE_CONFIG_DEFS  	= @pe_config_defs@
+
+ELF_EH_FRAME 		= @elf_eh_frame@
+ELF_HASH_STYLE 		= @elf_hash_style@
+ELF_CONFIG_DEFS 	= @elf_config_defs@
+
+PREFIX 			= @prefix@
+EXEC_PREFIX 		= @exec_prefix@
+BINDIR 			= @bindir@
+LIBDIR 			= @libdir@
+INCLUDEDIR 		= @includedir@
+MANDIR 			= @mandir@
+DOCDIR 			= @docdir@
+LIBEXECDIR 		= @libexecdir@
+
+NATIVE_CC 		= @native_cc@
+NATIVE_OS 		= @native_os@
+NATIVE_OS_BITS 		= @native_os_bits@
+NATIVE_OS_UNDERSCORE	= @native_os_underscore@
+
+USER_CC                 = @user_cc@
+USER_CPP                = @user_cpp@
+USER_CXX                = @user_cxx@
+
+ALL_SHARED              = @all_shared@
+ALL_STATIC              = @all_static@
+DISABLE_FRONTEND	= @disable_frontend@
+DISABLE_SHARED          = @disable_shared@
+DISABLE_STATIC          = @disable_static@
+
+all:
+install:
+shared:
+static:
+
+install-extras:
+install-app-extras:
+
+include $(PROJECT_DIR)/sysinfo/host/$(HOST).mk
+include $(PROJECT_DIR)/sysinfo/compiler/$(COMPILER).mk
+include $(PROJECT_DIR)/sysinfo/toolchain/$(TOOLCHAIN).mk
+
+include $(PROJECT_DIR)/project/osforce.mk
+
+include $(PROJECT_DIR)/sofort/defs.mk
+include $(PROJECT_DIR)/sofort/version.mk
+include $(PROJECT_DIR)/sofort/custom.mk
+
+include $(PROJECT_DIR)/project/tree.mk
+include $(PROJECT_DIR)/project/depends.mk
+include $(PROJECT_DIR)/project/headers.mk
+include $(PROJECT_DIR)/project/common.mk
+include $(PROJECT_DIR)/project/arch.mk
+include $(PROJECT_DIR)/project/extras.mk
+include $(PROJECT_DIR)/project/overrides.mk
+
+
+
+$(APP_SRCS:%.c=%.o): CFLAGS_STATIC = $(CFLAGS_APP)
+
+src/%.lo: 	$(PROJECT_DIR)/src/%.c $(ALL_HEADERS) host.tag tree.tag
+		$(CC) -c -o $@ $< $(CFLAGS_SHARED)
+
+src/%.o: 	$(PROJECT_DIR)/src/%.c $(ALL_HEADERS) host.tag tree.tag
+		$(CC) -c -o $@ $< $(CFLAGS_STATIC)
+
+lib/%$(OS_LIB_SUFFIX)$(VER_XYZ):
+		$(CC) -shared -o $@ $^ $(LDFLAGS_SHARED)
+
+lib/%$(OS_ARCHIVE_EXT):
+		rm -f $@
+		$(AR) rcs $@ $^
+
+
+
+all:		package-shared package-static app
+
+install:	package-install-app
+install:	package-install-extras
+install:	install-libs
+
+app:		app-tag
+
+app.tag:
+		cp $(PACKAGE_APP) $(APP)
+		touch app.tag
+
+install-libs:	package-install-shared
+install-libs:	package-install-static
+
+install-headers-default:
+		mkdir -p $(DESTDIR)$(INCLUDEDIR)/$(PACKAGE)
+		cp $(API_HEADERS) $(DESTDIR)$(INCLUDEDIR)/$(PACKAGE)
+
+install-shared:	shared install-lib install-implib
+install-shared: package-install-soname package-install-solink
+install-shared: install-headers
+
+install-lib:	shared
+		mkdir -p $(DESTDIR)$(LIBDIR)
+		cp $(SHARED_LIB) $(DESTDIR)$(LIBDIR)
+
+install-static:	static install-headers
+		mkdir -p $(DESTDIR)$(LIBDIR)
+		cp $(STATIC_LIB) $(DESTDIR)$(LIBDIR)
+
+install-app:	app install-app-extras
+		mkdir -p $(DESTDIR)$(BINDIR)
+		cp $(APP) $(DESTDIR)$(BINDIR)
+
+install-static-app:	static-app install-app-extras
+			mkdir -p $(DESTDIR)$(BINDIR)
+			cp $(STATIC_APP) $(DESTDIR)$(BINDIR)/$(NICKNAME)$(OS_APP_SUFFIX)
+
+
+
+shared:		shared-lib implib
+shared:		package-shared-soname package-shared-solink
+
+static:		static-lib
+
+shared-lib:	shared-objs $(SHARED_LIB)
+
+shared-soname:	shared-lib $(SHARED_SONAME)
+
+shared-solink:	shared-lib $(SHARED_SOLINK)
+
+static-lib:	static-objs $(STATIC_LIB)
+
+
+
+default-app:	version.tag static-objs $(DEFAULT_APP)
+
+shared-app:	version.tag shared $(SHARED_APP)
+
+static-app:	version.tag static-objs $(STATIC_APP)
+
+
+
+shared-objs:	dirs $(SHARED_OBJS)
+
+static-objs:	dirs $(STATIC_OBJS)
+
+app-objs:	dirs $(APP_OBJS)
+
+
+
+$(SHARED_LIB):	$(SHARED_OBJS)
+
+$(STATIC_LIB):	$(STATIC_OBJS)
+
+$(APP):		$(PACKAGE_APP)
+
+$(DEFAULT_APP):	$(STATIC_OBJS) $(APP_OBJS)
+		rm -f app.tag
+		$(CC) -o $@ $^ $(LDFLAGS_APP)
+
+$(SHARED_APP):	$(SHARED_LIB) $(APP_OBJS)
+		rm -f app.tag
+		$(CC) -o $@ $(APP_OBJS) -l$(PACKAGE) $(LDFLAGS_SHARED)
+
+$(STATIC_APP):	$(STATIC_OBJS) $(APP_OBJS)
+		rm -f app.tag
+		$(CC) -static -o $@ $^ $(LDFLAGS_STATIC)
+
+
+dirs: 		dirs.tag
+
+dirs.tag:
+		mkdir -p bin
+		mkdir -p lib
+		touch dirs.tag
+
+host.tag:	Makefile
+		$(PROJECT_DIR)/sysinfo/host/host.sh --compiler="$(CC)" --cflags="$(CFLAGS)"
+		touch host.tag
+
+version.tag:	$(GIT_REFERENCE_INDEX)
+		$(PROJECT_DIR)/sysinfo/version.sh	\
+			-s $(PROJECT_DIR)		\
+			-o build/$(PACKAGE)_version.h	\
+			-p $(PACKAGE)
+		touch version.tag
+
+distclean:	clean
+		rm -f Makefile
+
+clean:		clean-implib
+		rm -f tree.tag
+		rm -f dirs.tag
+		rm -f host.tag
+		rm -f version.tag
+		rm -f app.tag
+		rm -f $(SHARED_OBJS)
+		rm -f $(STATIC_OBJS)
+		rm -f $(APP_OBJS)
+		rm -f $(SHARED_LIB)
+		rm -f $(SHARED_SONAME)
+		rm -f $(SHARED_SOLINK)
+		rm -f $(STATIC_LIB)
+		rm -f $(APP)
+		rm -f $(DEFAULT_APP)
+		rm -f $(SHARED_APP)
+		rm -f $(STATIC_APP)
+
+
+.display:	.display-project .display-env .display-tools .display-flags \
+		.display-pe .display-elf .display-dirs .display-build \
+		.display-config
+
+.conf:		PAGER ?= less
+.conf:
+		$(MAKE) .display | $(PAGER)
+
+.display-project:
+		@echo PACKAGE:'                '$(PACKAGE)
+		@echo NICKNAME:'               '$(NICKNAME)
+		@echo PROJECT_DIR:'            '$(PROJECT_DIR)
+		@echo BUILD_DIR:'              '$(CURDIR)
+		@echo
+
+.display-env:
+		@echo BUILD:'                  '$(BUILD)
+		@echo HOST:'                   '$(HOST)
+		@echo TARGET:'                 '$(TARGET)
+		@echo ARCH:'                   '$(ARCH)
+		@echo COMPILER:'               '$(COMPILER)
+		@echo TOOLCHAIN:'              '$(TOOLCHAIN)
+		@echo SYSROOT:'                '$(SYSROOT)
+		@echo CROSS_COMPILE:'          '$(CROSS_COMPILE)
+		@echo SHELL:'                  '$(SHELL)
+		@echo
+
+.display-tools:
+		@echo CC:'                     '$(CC)
+		@echo CPP:'                    '$(CPP)
+		@echo CXX:'                    '$(CXX)
+		@echo
+		@echo AS:'                     '$(AS)
+		@echo AR:'                     '$(AR)
+		@echo LD:'                     '$(LD)
+		@echo NM:'                     '$(NM)
+		@echo OBJDUMP:'                '$(OBJDUMP)
+		@echo RANLIB:'                 '$(RANLIB)
+		@echo SIZE:'                   '$(SIZE)
+		@echo STRIP:'                  '$(STRIP)
+		@echo STRINGS:'                '$(STRINGS)
+		@echo
+		@echo ADDR2LINE:'              '$(ADDR2LINE)
+		@echo COV:'                    '$(COV)
+		@echo CXXFILT'                 '$(CXXFILT)
+		@echo ELFEDIT:'                '$(ELFEDIT)
+		@echo OBJCOPY:'                '$(OBJCOPY)
+		@echo READELF:'                '$(READELF)
+		@echo
+
+.display-flags:
+		@echo CFLAGS_COMMON:'          '$(CFLAGS_COMMON)
+		@echo CFLAGS_DEBUG:'           '$(CFLAGS_DEBUG)
+		@echo CFLAGS_VERSION:'         '$(CFLAGS_VERSION)
+		@echo CFLAGS_CMDLINE:'         '$(CFLAGS_CMDLINE)
+		@echo CFLAGS_CONFIG:'          '$(CFLAGS_CONFIG)
+		@echo CFLAGS_SYSROOT:'         '$(CFLAGS_SYSROOT)
+		@echo CFLAGS_OS:'              '$(CFLAGS_OS)
+		@echo CFLAGS_SITE:'            '$(CFLAGS_SITE)
+		@echo CFLAGS_PATH:'            '$(CFLAGS_PATH)
+		@echo CFLAGS_STRICT:'          '$(CFLAGS_STRICT)
+		@echo CFLAGS_UTIL:'            '$(CFLAGS_UTIL)
+		@echo CFLAGS_LAST:'            '$(CFLAGS_LAST)
+		@echo CFLAGS_ONCE:'            '$(CFLAGS_ONCE)
+		@echo
+		@echo LDFLAGS_COMMON:'         '$(LDFLAGS_COMMON)
+		@echo LDFLAGS_DEBUG:'          '$(LDFLAGS_DEBUG)
+		@echo LDFLAGS_CMDLINE:'        '$(LDFLAGS_CMDLINE)
+		@echo LDFLAGS_CONFIG:'         '$(LDFLAGS_CONFIG)
+		@echo LDFLAGS_SYSROOT:'        '$(LDFLAGS_SYSROOT)
+		@echo LDFLAGS_PATH:'           '$(LDFLAGS_PATH)
+		@echo LDFLAGS_STRICT:'         '$(LDFLAGS_STRICT)
+		@echo LDFLAGS_UTIL:'           '$(LDFLAGS_UTIL)
+		@echo LDFLAGS_LAST:'           '$(LDFLAGS_LAST)
+		@echo LDFLAGS_ONCE:'           '$(LDFLAGS_ONCE)
+		@echo
+
+.display-pe:
+		@echo PE_SUBSYSTEM:'           '$(PE_SUBSYSTEM)
+		@echo PE_IMAGE_BASE:'          '$(PE_IMAGE_BASE)
+		@echo PE_CONFIG_DEFS:'         '$(PE_CONFIG_DEFS)
+		@echo
+
+.display-elf:
+		@echo ELF_EH_FRAME:'           '$(ELF_EH_FRAME)
+		@echo ELF_HASH_STYLE:'         '$(ELF_HASH_STYLE)
+		@echo ELF_CONFIG_DEFS:'        '$(ELF_CONFIG_DEFS)
+		@echo
+
+.display-dirs:
+		@echo PREFIX:'                 '$(PREFIX)
+		@echo EXEC_PREFIX:'            '$(EXEC_PREFIX)
+		@echo BINDIR:'                 '$(BINDIR)
+		@echo LIBDIR:'                 '$(LIBDIR)
+		@echo INCLUDEDIR:'             '$(INCLUDEDIR)
+		@echo MANDIR:'                 '$(MANDIR)
+		@echo DOCDIR:'                 '$(DOCDIR)
+		@echo LIBEXECDIR:'             '$(LIBEXECDIR)
+		@echo
+
+.display-build:
+		@echo NATIVE_CC:'              '$(NATIVE_CC)
+		@echo NATIVE_OS:'              '$(NATIVE_OS)
+		@echo NATIVE_OS_BITS:'         '$(NATIVE_OS_BITS)
+		@echo NATIVE_OS_UNDERSCORE:'   '$(NATIVE_OS_UNDERSCORE)
+		@echo
+		@echo USER_CC:'                '$(USER_CC)
+		@echo USER_CPP:'               '$(USER_CPP)
+		@echo USER_CXX:'               '$(USER_CXX)
+		@echo
+
+.display-config:
+		@echo ALL_SHARED:'             '$(ALL_SHARED)
+		@echo ALL_STATIC:'             '$(ALL_STATIC)
+		@echo DISABLE_FRONTEND:'       '$(DISABLE_FRONTEND)
+		@echo DISABLE_SHARED:'         '$(DISABLE_SHARED)
+		@echo DISABLE_STATIC:'         '$(DISABLE_STATIC)
+
+.display-host:
+		@$(CC) $(CFLAGS) -dumpmachine
+
+.display-cc:
+		@echo $(CC)
+
+.display-cflags:
+		@echo $(CFLAGS)
+
+
+.PHONY:		all install shared static app \
+		package-app \
+		shared-objs shared-lib \
+		shared-soname shared-solink \
+		package-shared-soname package-shared-solink \
+		static-objs static-lib \
+		default-app shared-app static-app \
+		install-shared install-static \
+		install-soname install-solink \
+		package-install-soname package-install-solink \
+		install-headers install-app \
+		install-headers-default install-headers-custom \
+		clean distclean clean-implib version \
+		.display .conf \
+		.display-project .display-env .display-tools .display-flags \
+		.display-pe .display-elf .display-dirs .display-build \
+		implib implib-ver implib-soname implib-solink \
+		install-implib install-implib-ver \
+		install-implib-soname install-implib-solink
diff --git a/config.project b/config.project
new file mode 100644
index 0000000..10db5ed
--- /dev/null
+++ b/config.project
@@ -0,0 +1,62 @@
+# project
+mb_package=ptycon
+mb_require_out_of_tree=no
+mb_custom_install_headers=no
+mb_avoid_version=no
+
+
+# build
+mb_default_build=
+mb_default_host=
+mb_default_target=
+mb_default_arch=
+mb_default_compiler=
+mb_default_toolchain=
+mb_default_sysroot=
+mb_default_cross_compile=
+mb_default_shell=sh
+
+
+# switches
+mb_default_cflags_common="-std=c99 -D_XOPEN_SOURCE=700"
+mb_default_cflags_common="$mb_default_cflags_common -I\$(PROJECT_DIR)/src/internal"
+mb_default_cflags_common="$mb_default_cflags_common -I\$(PROJECT_DIR)/src/internal/nolibc"
+mb_default_cflags_common="$mb_default_cflags_common -I\$(PROJECT_DIR)/include"
+mb_default_cflags_common="$mb_default_cflags_common -Ibuild"
+
+mb_default_cflags_debug=
+mb_default_cflags_cmdline=
+mb_default_cflags_config=
+mb_default_cflags_sysroot=
+mb_default_cflags_path=
+mb_default_cflags_strict=
+mb_default_cflags_util=
+mb_default_cflags_last=
+mb_default_cflags_once=
+
+mb_default_ldflags_common="-Llib"
+mb_default_ldflags_debug=
+mb_default_ldflags_cmdline=
+mb_default_ldflags_config=
+mb_default_ldflags_sysroot=
+mb_default_ldflags_path=
+mb_default_ldflags_strict=
+mb_default_ldflags_util=
+mb_default_ldflags_last=
+mb_default_ldflags_once=
+
+mb_default_pe_subsystem=windows
+mb_default_pe_image_base=
+mb_default_pe_config_defs=
+
+mb_default_elf_eh_frame=
+mb_default_elf_hash_style=
+mb_default_elf_config_defs=
+
+
+# config
+mb_all_static=
+mb_all_shared=
+mb_disable_frontend=
+mb_disable_static=
+mb_disable_shared=
diff --git a/config.usage b/config.usage
new file mode 100644
index 0000000..47599e9
--- /dev/null
+++ b/config.usage
@@ -0,0 +1,109 @@
+configure: a skinny configuration script.
+
+supported switches:
+-------------------
+	--help
+
+	--nickname
+	--avoid-version
+
+	--prefix
+	--exec-prefix
+	--bindir
+	--libdir
+	--includedir
+	--mandir
+	--docdir
+	--libexecdir
+
+	--build
+	--host
+	--target
+	--arch
+	--compiler
+	--toolchain
+	--sysroot
+	--cross-compile
+	--shell
+	--debug
+
+	--strict
+	--ccstrict
+	--ldstrict
+
+	--all-static
+	--all-shared
+	--enable-static
+	--enable-shared
+	--disable-static
+	--disable-shared
+
+	--enable-app
+	--enable-frontend
+	--disable-app
+	--disable-frontend
+
+
+supported variables:
+--------------------
+	NICKNAME
+
+	PREFIX
+	EXEC_PREFIX
+	BINDIR
+	LIBDIR
+	INCLUDEDIR
+	MANDIR
+	DOCDIR
+	LIBEXECDIR
+
+	CC
+	CPP
+	CXX
+
+	BUILD
+	HOST
+	TARGET
+	ARCH
+	COMPILER
+	TOOLCHAIN
+	SYSROOT
+	CROSS_COMPILE
+	SHELL
+
+	CFLAGS
+	CFLAGS_DEBUG
+	CFLAGS_COMMON
+	CFLAGS_CMDLINE
+	CFLAGS_CONFIG
+	CFLAGS_SYSROOT
+	CFLAGS_PATH
+	CFLAGS_STRICT
+	CFLAGS_UTIL
+	CFLAGS_LAST
+	CFLAGS_ONCE
+
+	LDFLAGS
+	LDFLAGS_DEBUG
+	LDFLAGS_COMMON
+	LDFLAGS_CMDLINE
+	LDFLAGS_CONFIG
+	LDFLAGS_SYSROOT
+	LDFLAGS_PATH
+	LDFLAGS_STRICT
+	LDFLAGS_UTIL
+	LDFLAGS_LAST
+	LDFLAGS_ONCE
+
+	PE_SUBSYSTEM
+	PE_IMAGE_BASE
+	PE_CONFIG_DEFS
+
+	ELF_EH_FRAME
+	ELF_HASH_STYLE
+	ELF_CONFIG_DEFS
+
+	NATIVE_CC
+	NATIVE_OS
+	NATIVE_OS_BITS
+	NATIVE_OS_UNDERSCORE
diff --git a/configure b/configure
new file mode 100755
index 0000000..6894bc6
--- /dev/null
+++ b/configure
@@ -0,0 +1,633 @@
+#!/bin/sh
+# we are no longer lazy.
+
+# this script respects both CFLAGS and CFLAGS_CMDLINE,
+# as well as both LDFLAGS and LDFLAGS_CMDLINE, however
+# the latter variable of each pair should be preferred.
+
+usage()
+{
+	cat "$mb_project_dir"/config.usage
+	exit $?
+}
+
+error_msg()
+{
+	echo "$@" >&2
+}
+
+warning_msg()
+{
+	echo "$@" >&2
+}
+
+
+init_vars()
+{
+	mb_project_dir=$(cd `dirname $0` ; pwd)
+	mb_pwd=`pwd`
+
+	if [ -z "$mb_config" ]; then
+		. $mb_project_dir/config.project || exit 2
+	else
+		. "$mb_config" || exit 2
+	fi
+
+	# git
+	if [ -d "$mb_project_dir/.git" ]; then
+		mb_git_reference_index="\$(PROJECT_DIR)/.git/index"
+	fi
+
+	# project
+	mb_nickname=$NICKNAME
+
+	# dirs
+	mb_prefix=$PREFIX
+	mb_exec_prefix=$EXEC_PREFIX
+	mb_bindir=$BINDIR
+	mb_libdir=$LIBDIR
+	mb_includedir=$INCLUDEDIR
+	mb_mandir=$MANDIR
+	mb_docdir=$DOCDIR
+	mb_libexecdir=$LIBEXECDIR
+
+
+	# build
+	mb_build=$BUILD
+	mb_host=$HOST
+	mb_target=$TARGET
+	mb_arch=$ARCH
+	mb_compiler=$COMPILER
+	mb_toolchain=$TOOLCHAIN
+	mb_sysroot=$SYSROOT
+	mb_cross_compile=$CROSS_COMPILE
+	mb_shell=$SHELL
+
+	# switches
+	mb_cflags=$CFLAGS
+	mb_cflags_debug=$CFLAGS_DEBUG
+	mb_cflags_common=$CFLAGS_COMMON
+	mb_cflags_cmdline=$CFLAGS_CMDLINE
+	mb_cflags_config=$CFLAGS_CONFIG
+	mb_cflags_sysroot=$CFLAGS_SYSROOT
+	mb_cflags_os=$CFLAGS_OS
+	mb_cflags_site=$CFLAGS_SITE
+	mb_cflags_path=$CFLAGS_PATH
+	mb_cflags_strict=$CFLAGS_STRICT
+	mb_cflags_util=$CFLAGS_UTIL
+	mb_cflags_last=$CFLAGS_LAST
+	mb_cflags_once=$CFLAGS_ONCE
+
+	mb_ldflags=$LDFLAGS
+	mb_ldflags_debug=$LDFLAGS_DEBUG
+	mb_ldflags_common=$LDFLAGS_COMMON
+	mb_ldflags_cmdline=$LDFLAGS_CMDLINE
+	mb_ldflags_config=$LDFLAGS_CONFIG
+	mb_ldflags_sysroot=$LDFLAGS_SYSROOT
+	mb_ldflags_path=$LDFLAGS_PATH
+	mb_ldflags_strict=$LDFLAGS_STRICT
+	mb_ldflags_util=$LDFLAGS_UTIL
+	mb_ldflags_last=$LDFLAGS_LAST
+	mb_ldflags_once=$LDFLAGS_ONCE
+
+	mb_pe_subsystem=$PE_SUBSYSTEM
+	mb_pe_image_base=$PE_IMAGE_BASE
+	mb_pe_config_defs=$PE_CONFIG_DEFS
+
+	mb_elf_eh_frame=$ELF_EH_FRAME
+	mb_elf_hash_style=$ELF_HASH_STYLE
+	mb_elf_config_defs=$ELF_CONFIG_DEFS
+
+	# overrides
+	mb_native_cc=$NATIVE_CC
+	mb_native_os=$NATIVE_OS
+	mb_native_os_bits=$NATIVE_OS_BITS
+	mb_native_os_underscore=$NATIVE_OS_UNDERSCORE
+
+	mb_user_cc=$CC
+	mb_user_cpp=$CPP
+	mb_user_cxx=$CXX
+}
+
+
+verify_build_directory()
+{
+	if [ "$mb_project_dir" = "$mb_pwd" ]; then
+		if [ "$mb_require_out_of_tree" = yes ]; then
+			error_msg "$mb_package: out-of-tree builds are required."
+			error_msg "please invoke configure again from a clean build directory."
+			exit 2
+		else
+			mb_project_dir='.'
+		fi
+	fi
+}
+
+
+common_defaults()
+{
+	# project
+	[ -z "$mb_nickname" ] 		&& mb_nickname=$mb_package
+	[ -z "$mb_avoid_version" ] 	&& mb_avoid_version='no'
+
+	# dirs
+	[ -z "$mb_prefix" ] 		&& [ -z "$mb_prefix_set" ] \
+					&& mb_prefix='/usr/local'
+
+	[ -z "$mb_exec_prefix" ] 	&& [ -z "$mb_exec_prefix_set" ]	\
+					&& mb_exec_prefix=$mb_prefix
+
+	[ -z "$mb_bindir" ] 		&& mb_bindir=$mb_exec_prefix/bin
+	[ -z "$mb_libdir" ] 		&& mb_libdir=$mb_exec_prefix/lib
+	[ -z "$mb_includedir" ]		&& mb_includedir=$mb_prefix/include
+	[ -z "$mb_datarootdir" ] 	&& mb_datarootdir=$mb_prefix/share
+	[ -z "$mb_mandir" ] 		&& mb_mandir=$mb_datarootdir/man
+	[ -z "$mb_docdir" ] 		&& mb_docdir=$mb_datarootdir/doc
+	[ -z "$mb_libexecdir" ]		&& mb_libexecdir=$mb_exec_prefix/libexec
+
+	# build
+	[ -z "$mb_build" ] 		&& mb_build=$mb_default_build
+	[ -z "$mb_host" ] 		&& mb_host=$mb_default_host
+	[ -z "$mb_target" ] 		&& mb_target=$mb_default_target
+	[ -z "$mb_arch" ] 		&& mb_arch=$mb_default_arch
+	[ -z "$mb_compiler" ] 		&& mb_compiler=$mb_default_compiler
+	[ -z "$mb_toolchain" ] 		&& mb_toolchain=$mb_default_toolchain
+	[ -z "$mb_sysroot" ] 		&& mb_sysroot=$mb_default_sysroot
+	[ -z "$mb_cross_compile" ] 	&& mb_cross_compile=$mb_default_cross_compile
+	[ -z "$mb_shell" ] 		&& mb_shell=$mb_default_shell
+
+	# switches
+	[ -z "$mb_cflags_debug" ]	&& mb_cflags_debug=$mb_default_cflags_debug
+	[ -z "$mb_cflags_common" ]	&& mb_cflags_common=$mb_default_cflags_common
+	[ -z "$mb_cflags_cmdline" ]	&& mb_cflags_cmdline=$mb_default_cflags_cmdline
+	[ -z "$mb_cflags_config" ]	&& mb_cflags_config=$mb_default_cflags_config
+	[ -z "$mb_cflags_sysroot" ]	&& mb_cflags_sysroot=$mb_default_cflags_sysroot
+	[ -z "$mb_cflags_os" ]		&& mb_cflags_os=$mb_default_cflags_os
+	[ -z "$mb_cflags_site" ]	&& mb_cflags_site=$mb_default_cflags_site
+	[ -z "$mb_cflags_path" ]	&& mb_cflags_path=$mb_default_cflags_path
+	[ -z "$mb_cflags_strict" ]	&& mb_cflags_strict=$mb_default_cflags_strict
+	[ -z "$mb_cflags_util" ]	&& mb_cflags_util=$mb_default_cflags_util
+	[ -z "$mb_cflags_last" ]	&& mb_cflags_last=$mb_default_cflags_last
+	[ -z "$mb_cflags_once" ]	&& mb_cflags_once=$mb_default_cflags_once
+
+	[ -z "$mb_ldflags_debug" ]	&& mb_ldflags_debug=$mb_default_ldflags_debug
+	[ -z "$mb_ldflags_common" ]	&& mb_ldflags_common=$mb_default_ldflags_common
+	[ -z "$mb_ldflags_cmdline" ]	&& mb_ldflags_cmdline=$mb_default_ldflags_cmdline
+	[ -z "$mb_ldflags_config" ]	&& mb_ldflags_config=$mb_default_ldflags_config
+	[ -z "$mb_ldflags_sysroot" ]	&& mb_ldflags_sysroot=$mb_default_ldflags_sysroot
+	[ -z "$mb_ldflags_path" ]	&& mb_ldflags_path=$mb_default_ldflags_path
+	[ -z "$mb_ldflags_strict" ]	&& mb_ldflags_strict=$mb_default_ldflags_strict
+	[ -z "$mb_ldflags_util" ]	&& mb_ldflags_util=$mb_default_ldflags_util
+	[ -z "$mb_ldflags_last" ]	&& mb_ldflags_last=$mb_default_ldflags_last
+	[ -z "$mb_ldflags_once" ]	&& mb_ldflags_once=$mb_default_ldflags_once
+
+	[ -z "$mb_pe_subsystem" ]	&& mb_pe_subsystem=$mb_default_pe_subsystem
+	[ -z "$mb_pe_image_base" ]	&& mb_pe_image_base=$mb_default_pe_image_base
+	[ -z "$mb_pe_config_defs" ]	&& mb_pe_config_defs=$mb_default_pe_config_defs
+
+	[ -z "$mb_elf_eh_frame" ]	&& mb_elf_eh_frame=$mb_default_elf_eh_frame
+	[ -z "$mb_elf_hash_style" ]	&& mb_elf_hash_style=$mb_default_elf_hash_style
+	[ -z "$mb_elf_config_defs" ]	&& mb_elf_config_defs=$mb_default_elf_config_defs
+
+	# config
+	[ -z "$mb_all_static" ]		&& mb_all_static='no'
+	[ -z "$mb_all_shared" ]		&& mb_all_shared='no'
+	[ -z "$mb_disable_frontend" ]	&& mb_disable_frontend='no'
+	[ -z "$mb_disable_static" ]	&& mb_disable_static='no'
+	[ -z "$mb_disable_shared" ]	&& mb_disable_shared='no'
+
+	# host/target
+	[ -z "$mb_host" ] 		&& mb_host=$mb_target
+	[ -z "$mb_target" ] 		&& mb_target=$mb_host
+
+	# sysroot
+	if [ -n "$mb_sysroot" ]; then
+		if [ -z "$mb_cflags_sysroot" ]; then
+			mb_cflags_sysroot="--sysroot=$mb_sysroot"
+		fi
+
+		if [ -z "$mb_ldflags_sysroot" ]; then
+			mb_ldflags_sysroot="-Wl,--sysroot,$mb_sysroot"
+		fi
+	fi
+
+	# debug
+	if [ "$mb_debug" = yes ]; then
+		if [ -z "$mb_cflags_debug" ]; then
+			mb_cflags_debug='-g3 -O0'
+		fi
+	fi
+
+	# compiler
+	if [ -n "$mb_compiler" ]; then
+		if [ -z "$mb_native_cc" ]; then
+			mb_native_cc=$mb_compiler
+		fi
+	fi
+
+	# toolchain
+	if [ -z "$mb_toolchain" ]; then
+		mb_toolchain='binutils'
+	fi
+
+	# fallback host recipe
+	if [ -n "$mb_host" ]; then
+		if ! [ -f $mb_project_dir/sysinfo/host/$mb_host.mk ]; then
+			if [ -z "$mb_cross_compile" ]; then
+				mb_cross_compile=$mb_host-
+			fi
+
+			mb_host='any-host';
+		fi
+	fi
+
+	# fallback compiler recipe
+	if [ -n "$mb_compiler" ]; then
+		if ! [ -f $mb_project_dir/sysinfo/compiler/$mb_compiler.mk ]; then
+			mb_compiler='any-compiler'
+		fi
+	fi
+}
+
+
+native_defaults()
+{
+	# CC (when set, must be valid)
+	if [ -n "$CC" ]; then
+		$CC -dM -E - < /dev/null > /dev/null || exit 2
+	fi
+
+	# compiler
+	[ -z "$mb_native_cc" ] && mb_native_cc=$CC
+	[ -z "$mb_native_cc" ] && mb_native_cc='cc'
+	$mb_native_cc -dM -E - < /dev/null > /dev/null 2>/dev/null || mb_native_cc=
+
+	[ -z "$mb_native_cc" ] && mb_native_cc='gcc'
+	$mb_native_cc -dM -E - < /dev/null > /dev/null 2>/dev/null || mb_native_cc=
+
+	[ -z "$mb_native_cc" ] && mb_native_cc='clang'
+	$mb_native_cc -dM -E - < /dev/null > /dev/null 2>/dev/null || mb_native_cc=
+
+	[ -z "$mb_native_cc" ] && mb_native_cc='cparser'
+	$mb_native_cc -dM -E - < /dev/null > /dev/null 2>/dev/null || mb_native_cc=
+
+	if [ -z "$mb_native_cc" ]; then
+		echo "configure: info: could not find a working native compiler."
+		mb_native_cc='false'
+	fi
+
+	if [ -z "$mb_compiler" ]; then
+		$mb_native_cc -dM -E - < /dev/null | grep -q '__clang__' && mb_compiler='clang'
+	fi
+
+	if [ -z "$mb_compiler" ]; then
+		$mb_native_cc -dM -E - < /dev/null | grep -q '__GCC' && mb_compiler='gcc'
+	fi
+
+	if [ -z "$mb_compiler" ]; then
+		$mb_native_cc -dM -E - < /dev/null | grep -q "^gcc" && mb_compiler='gcc'
+	fi
+
+	if [ -z "$mb_compiler" ]; then
+		$mb_native_cc -dM -E - < /dev/null | grep -q '__CPARSER__' && mb_compiler='cparser'
+	fi
+
+	if [ -z "$mb_compiler" ]; then
+		echo "configure: info: could not identify the native compiler."
+		mb_compiler='any-compiler'
+	fi
+
+
+	# host
+	if [ -z "$mb_host" ]; then
+		mb_host='native'
+	fi
+
+
+	# target
+	if [ -z "$mb_target" ]; then
+		mb_target='native'
+	fi
+
+
+	# os
+	mb_native_os=`uname | tr '[:upper:]' '[:lower:]'`
+
+	mb_native_os_sizeof_pointer=`$mb_native_cc -dM -E - < /dev/null \
+			| awk '$2 == "__SIZEOF_POINTER__" { print $3 }'`
+
+	mb_native_os_bits=$((8 * ${mb_native_os_sizeof_pointer:-0}))
+
+	if [ $mb_native_os_bits = 32 ]; then
+		mb_native_os_underscore='_'
+	else
+		mb_native_os_underscore=''
+	fi
+
+	if [ -z "$mb_native_os_sizeof_pointer" ]; then
+		warning_msg "config error: could not determine size of pointer on native system."
+	fi
+
+	# fallback os recipe
+	if ! [ -f $mb_project_dir/sysinfo/os/$mb_native_os.mk ]; then
+		mb_native_os='any-os';
+	fi
+}
+
+
+cross_defaults()
+{
+	if [ -z "$mb_cross_compile" ] && [ "$mb_host" != native ]; then
+		mb_cross_compile=$mb_host'-'
+	fi
+}
+
+
+config_flags()
+{
+	mb_ldflags_tmp=" $mb_ldflags "
+	mb_ldflags_libs=`echo "$mb_ldflags_tmp" | sed 's/ -static / /g'`
+
+	if [ "$mb_ldflags_tmp" != "$mb_ldflags_libs" ]; then
+		mb_ldflags="$mb_ldflags_libs"
+		mb_ldflags_util="$mb_ldflags_util -static"
+	fi
+
+	# ccstrict
+	if [ "$mb_ccstrict" = 'yes' ]; then
+		mb_cflags_strict='-Wall -Werror -Wextra -Wundef'
+	fi
+
+	# ldstrict
+	if [ "$mb_ldstrict" = 'yes' ]; then
+		mb_ldflags_strict='-Wl,--no-undefined'
+	fi
+}
+
+
+config_copy()
+{
+	sed 		-e 's^@package@^'"$mb_package"'^g' 				\
+			-e 's^@nickname@^'"$mb_nickname"'^g'				\
+			-e 's^@project_dir@^'"$mb_project_dir"'^g'			\
+			-e 's^@git_reference_index@^'"$mb_git_reference_index"'^g'	\
+			-e 's^@custom_install_headers@^'"$mb_custom_install_headers"'^g' \
+			-e 's^@avoid_version@^'"$mb_avoid_version"'^g'			\
+											\
+			-e 's^@build@^'"$mb_build"'^g'					\
+			-e 's^@host@^'"$mb_host"'^g'					\
+			-e 's^@target@^'"$mb_target"'^g'				\
+			-e 's^@arch@^'"$mb_arch"'^g'					\
+			-e 's^@compiler@^'"$mb_compiler"'^g'				\
+			-e 's^@toolchain@^'"$mb_toolchain"'^g'				\
+			-e 's^@sysroot@^'"$mb_sysroot"'^g'				\
+			-e 's^@cross_compile@^'"$mb_cross_compile"'^g'			\
+			-e 's^@shell@^'"$mb_shell"'^g'					\
+											\
+			-e 's^@cflags@^'"$mb_cflags"'^g'				\
+			-e 's^@cflags_debug@^'"$mb_cflags_debug"'^g'			\
+			-e 's^@cflags_common@^'"$mb_cflags_common"'^g'			\
+			-e 's^@cflags_cmdline@^'"$mb_cflags $mb_cflags_cmdline"'^g'	\
+			-e 's^@cflags_config@^'"$mb_cflags_config"'^g'			\
+			-e 's^@cflags_sysroot@^'"$mb_cflags_sysroot"'^g'		\
+			-e 's^@cflags_os@^'"$mb_cflags_os"'^g'				\
+			-e 's^@cflags_site@^'"$mb_cflags_site"'^g'			\
+			-e 's^@cflags_path@^'"$mb_cflags_path"'^g'			\
+			-e 's^@cflags_strict@^'"$mb_cflags_strict"'^g'			\
+			-e 's^@cflags_util@^'"$mb_cflags_util"'^g'			\
+			-e 's^@cflags_last@^'"$mb_cflags_last"'^g'			\
+			-e 's^@cflags_once@^'"$mb_cflags_once"'^g'			\
+											\
+			-e 's^@ldflags@^'"$mb_ldflags"'^g'				\
+			-e 's^@ldflags_debug@^'"$mb_ldflags_debug"'^g'			\
+			-e 's^@ldflags_common@^'"$mb_ldflags_common"'^g'		\
+			-e 's^@ldflags_cmdline@^'"$mb_ldflags $mb_ldflags_cmdline"'^g'	\
+			-e 's^@ldflags_config@^'"$mb_ldflags_config"'^g'		\
+			-e 's^@ldflags_sysroot@^'"$mb_ldflags_sysroot"'^g'		\
+			-e 's^@ldflags_path@^'"$mb_ldflags_path"'^g'			\
+			-e 's^@ldflags_strict@^'"$mb_ldflags_strict"'^g'		\
+			-e 's^@ldflags_util@^'"$mb_ldflags_util"'^g'			\
+			-e 's^@ldflags_last@^'"$mb_ldflags_last"'^g'			\
+			-e 's^@ldflags_once@^'"$mb_ldflags_once"'^g'			\
+											\
+			-e 's^@pe_subsystem@^'"$mb_pe_subsystem"'^g'			\
+			-e 's^@pe_image\_base@^'"$mb_pe_image_base"'^g'			\
+			-e 's^@pe_config\_defs@^'"$mb_pe_config_defs"'^g'		\
+											\
+			-e 's^@elf_eh\_frame@^'"$mb_elf_eh_frame"'^g'			\
+			-e 's^@elf_hash\_style@^'"$mb_elf_hash_style"'^g'		\
+			-e 's^@elf_config\_defs@^'"$mb_elf_config_defs"'^g'		\
+											\
+			-e 's^@prefix@^'"$mb_prefix"'^g'				\
+			-e 's^@exec_prefix@^'"$mb_exec_prefix"'^g'			\
+			-e 's^@bindir@^'"$mb_bindir"'^g'				\
+			-e 's^@libdir@^'"$mb_libdir"'^g'				\
+			-e 's^@includedir@^'"$mb_includedir"'^g'			\
+			-e 's^@mandir@^'"$mb_mandir"'^g'				\
+			-e 's^@docdir@^'"$mb_docdir"'^g'				\
+			-e 's^@libexecdir@^'"$mb_libexecdir"'^g'			\
+											\
+			-e 's^@native_cc@^'"$mb_native_cc"'^g'				\
+			-e 's^@native_os@^'"$mb_native_os"'^g'				\
+			-e 's^@native_os_bits@^'"$mb_native_os_bits"'^g'		\
+			-e 's^@native_os_underscore@^'"$mb_native_os_underscore"'^g'	\
+											\
+			-e 's^@user_cc@^'"$mb_user_cc"'^g'				\
+			-e 's^@user_cpp@^'"$mb_user_cpp"'^g'				\
+			-e 's^@user_cxx@^'"$mb_user_cxx"'^g'				\
+											\
+			-e 's^@all_static@^'"$mb_all_static"'^g'			\
+			-e 's^@all_shared@^'"$mb_all_shared"'^g'			\
+			-e 's^@disable_frontend@^'"$mb_disable_frontend"'^g'		\
+			-e 's^@disable_static@^'"$mb_disable_static"'^g'		\
+			-e 's^@disable_shared@^'"$mb_disable_shared"'^g'		\
+		$mb_project_dir/Makefile.in > $mb_pwd/Makefile
+}
+
+
+config_support()
+{
+	[ "$mb_disable_shared" = 'yes' ] && return 0
+
+	mbt_cc=`make .display-cc`
+	mbt_cflags=`make .display-cflags`
+	mbt_source='int foo(int x){return ++x;}'
+	mbt_result='no'
+
+	rm -f a.out
+	echo "$mbt_source" | "$mbt_cc" -shared -o a.out -xc -
+	stat a.out >/dev/null 2>&1 && mbt_result='yes'
+	rm -f a.out
+
+	if [ "$mbt_result" = 'no' ]; then
+		mb_disable_shared='yes'
+		config_copy
+	fi
+}
+
+
+config_host()
+{
+	make -s host.tag && return 0
+
+	error_msg "configure was able to generate a Makefile for the selected host,"
+	error_msg "however the host-targeting compiler was found to be missing"
+	error_msg "at least one of the required headers or features."
+	exit 2
+}
+
+
+config_status()
+{
+	printf "\n\n"
+	make .display
+	printf "\nconfiguration completed successfully.\n\n"
+}
+
+# one: init
+init_vars
+verify_build_directory
+
+
+# two: args
+for arg ; do
+	case "$arg" in
+		--help)	usage
+			;;
+
+		# dirs
+		--prefix=*)
+			mb_prefix_set=yes
+			mb_prefix=${arg#*=}
+			;;
+		--exec-prefix=*)
+			mb_exec_prefix_set=yes
+			mb_exec_prefix=${arg#*=}
+			;;
+		--bindir=*)
+			mb_bindir=${arg#*=}
+			;;
+		--libdir=*)
+			mb_libdir=${arg#*=}
+			;;
+		--includedir=*)
+			mb_includedir=${arg#*=}
+			;;
+		--mandir=*)
+			mb_mandir=${arg#*=}
+			;;
+		--libexecdir=*)
+			mb_libexecdir=${arg#*=}
+			;;
+
+
+		# build
+		--build=*)
+			mb_build=${arg#*=}
+			;;
+		--host=*)
+			mb_host=${arg#*=}
+			;;
+		--target=*)
+			mb_target=${arg#*=}
+			;;
+		--arch=*)
+			mb_arch=${arg#*=}
+			;;
+		--compiler=*)
+			mb_compiler=${arg#*=}
+			;;
+		--toolchain=*)
+			mb_toolchain=${arg#*=}
+			;;
+		--sysroot=*)
+			mb_sysroot=${arg#*=}
+			;;
+		--cross-compile=*)
+			mb_cross_compile=${arg#*=}
+			;;
+		--shell=*)
+			mb_shell=${arg#*=}
+			;;
+		--debug)
+			mb_debug='yes'
+			;;
+
+		# config
+		--all-static)
+			mb_all_static='yes'
+			;;
+		--all-shared)
+			mb_all_shared='yes'
+			;;
+		--disable-frontend)
+			mb_disable_frontend='yes'
+			;;
+		--disable-app)
+			mb_disable_frontend='yes'
+			;;
+		--enable-frontend)
+			mb_disable_frontend='no'
+			;;
+		--enable-app)
+			mb_disable_frontend='no'
+			;;
+		--disable-static)
+			mb_disable_static='yes'
+			;;
+		--disable-shared)
+			mb_disable_shared='yes'
+			;;
+		--enable-static)
+			mb_disable_static='no'
+			;;
+		--enable-shared)
+			mb_disable_shared='no'
+			;;
+
+		# convenience
+		--strict)
+			mb_ccstrict='yes'
+			mb_ldstrict='yes'
+			;;
+		--ccstrict)
+			mb_ccstrict='yes'
+			;;
+		--ldstrict)
+			mb_ldstrict='yes'
+			;;
+
+		# project
+		--nickname=*)
+			mb_nickname=${arg#*=}
+			;;
+		--avoid-version)
+			mb_avoid_version='yes'
+			;;
+
+		*)
+			error_msg ${arg#}: "unsupported config argument."
+			exit 2
+			;;
+	esac
+done
+
+
+
+# three: defaults
+common_defaults
+native_defaults
+cross_defaults
+
+
+
+# four: config
+config_flags
+config_copy
+config_support
+config_host
+config_status
+
+
+# all done
+exit 0
diff --git a/include/ptycon/ptycon.h b/include/ptycon/ptycon.h
new file mode 100644
index 0000000..9d10ff9
--- /dev/null
+++ b/include/ptycon/ptycon.h
@@ -0,0 +1,76 @@
+#ifndef PTYCON_H
+#define PTYCON_H
+
+#include <stdint.h>
+
+#include "ptycon_api.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* pre-alpha */
+#ifndef PTYC_APP
+#ifndef PTYC_PRE_ALPHA
+#error  libptycon: pre-alpha: ABI is not final!
+#error  to use the library, please pass -DPTYC_PRE_ALPHA to the compiler.
+#endif
+#endif
+
+/* status codes */
+#define PTYC_OK				0x00
+#define PTYC_USAGE			0x01
+#define PTYC_BAD_OPT			0x02
+#define PTYC_BAD_OPT_VAL		0x03
+#define PTYC_IO_ERROR			0xA0
+#define PTYC_MAP_ERROR			0xA1
+
+/* driver flags */
+#define PTYC_DRIVER_VERBOSITY_NONE	0x0000
+#define PTYC_DRIVER_VERBOSITY_ERRORS	0x0001
+#define PTYC_DRIVER_VERBOSITY_STATUS	0x0002
+#define PTYC_DRIVER_VERBOSITY_USAGE	0x0004
+#define PTYC_DRIVER_CLONE_VECTOR	0x0008
+
+#define PTYC_DRIVER_VERSION		0x0010
+#define PTYC_DRIVER_DRY_RUN		0x0020
+
+struct ptyc_source_version {
+	int		major;
+	int		minor;
+	int		revision;
+	const char *	commit;
+};
+
+struct ptyc_common_ctx {
+	uint64_t			drvflags;
+	uint64_t			actflags;
+	uint64_t			fmtflags;
+};
+
+struct ptyc_driver_ctx {
+	const char **			units;
+	const char *			program;
+	const char *			module;
+	const struct ptyc_common_ctx *	cctx;
+	void *				any;
+	int				status;
+	int				nerrors;
+};
+
+/* package info */
+ptyc_api				const struct ptyc_source_version * ptyc_source_version(void);
+
+/* driver api */
+ptyc_api int  ptyc_get_driver_ctx	(char ** argv, char ** envp, uint32_t flags, struct ptyc_driver_ctx **);
+ptyc_api int  ptyc_create_driver_ctx	(const struct ptyc_common_ctx *, struct ptyc_driver_ctx **);
+ptyc_api void ptyc_free_driver_ctx	(struct ptyc_driver_ctx *);
+
+/* utility api */
+ptyc_api int  ptyc_main			(int, char **, char **);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/include/ptycon/ptycon_api.h b/include/ptycon/ptycon_api.h
new file mode 100644
index 0000000..35ba2a4
--- /dev/null
+++ b/include/ptycon/ptycon_api.h
@@ -0,0 +1,35 @@
+#ifndef PTYCON_API_H
+#define PTYCON_API_H
+
+#include <limits.h>
+
+/* ptyc_export */
+#if	defined(__dllexport)
+#define ptyc_export __dllexport
+#else
+#define ptyc_export
+#endif
+
+/* ptyc_import */
+#if	defined(__dllimport)
+#define ptyc_import __dllimport
+#else
+#define ptyc_import
+#endif
+
+/* ptyc_api */
+#ifndef PTYC_APP
+#if     defined (PTYC_BUILD)
+#define ptyc_api ptyc_export
+#elif   defined (PTYC_SHARED)
+#define ptyc_api ptyc_import
+#elif   defined (PTYC_STATIC)
+#define ptyc_api
+#else
+#define ptyc_api
+#endif
+#else
+#define ptyc_api
+#endif
+
+#endif
diff --git a/project/arch.mk b/project/arch.mk
new file mode 100644
index 0000000..f7089c6
--- /dev/null
+++ b/project/arch.mk
@@ -0,0 +1,5 @@
+src/internal/nolibc/ptyc_compiler.lo: $(PROJECT_DIR)/src/internal/nolibc/$(ARCH)/ptyc_compiler.s host.tag tree.tag
+	$(CC) -c -o $@ $<
+
+src/internal/nolibc/ptyc_compiler.o: $(PROJECT_DIR)/src/internal/nolibc/$(ARCH)/ptyc_compiler.s host.tag tree.tag
+	$(CC) -c -o $@ $<
diff --git a/project/common.mk b/project/common.mk
new file mode 100644
index 0000000..07ea4ed
--- /dev/null
+++ b/project/common.mk
@@ -0,0 +1,11 @@
+COMMON_SRCS = \
+	src/driver/ptyc_amain.c \
+	src/driver/ptyc_driver_ctx.c \
+	src/internal/nolibc/ptyc_compiler.c \
+	src/internal/ptycon_memfn_impl.c \
+	src/internal/ptycon_nolibc_impl.c \
+	src/internal/ptycon_ntaio_impl.c \
+	src/skin/ptyc_skin_default.c \
+
+APP_SRCS = \
+	src/ptycon.c
diff --git a/project/depends.mk b/project/depends.mk
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/project/depends.mk
diff --git a/project/extras.mk b/project/extras.mk
new file mode 100644
index 0000000..6f6d5db
--- /dev/null
+++ b/project/extras.mk
@@ -0,0 +1,11 @@
+CFLAGS_SHARED_ATTR	+= -DPTYC_PRE_ALPHA -DPTYC_BUILD
+CFLAGS_STATIC_ATTR	+= -DPTYC_PRE_ALPHA -DPTYC_STATIC
+CFLAGS_APP_ATTR		+= -DPTYC_APP
+
+src/driver/ptyc_driver_ctx.o:	version.tag
+src/driver/ptyc_driver_ctx.lo:	version.tag
+
+LDFLAGS_COMMON		+= -nostdlib -lntapi -lpemagine -ldalist
+LDFLAGS_COMMON		+= -Wl,--entry -Wl,$(HOST_UNDERSCORE)$(PACKAGE)_entry_point
+
+LDFLAGS_SHARED		+= -Wl,--exclude-all-symbols
diff --git a/project/headers.mk b/project/headers.mk
new file mode 100644
index 0000000..ed7a838
--- /dev/null
+++ b/project/headers.mk
@@ -0,0 +1,12 @@
+API_HEADERS = \
+	$(PROJECT_DIR)/include/$(PACKAGE)/ptycon.h \
+	$(PROJECT_DIR)/include/$(PACKAGE)/ptycon_api.h \
+
+INTERNAL_HEADERS = \
+	$(PROJECT_DIR)/src/internal/argv/argv.h \
+	$(PROJECT_DIR)/src/internal/$(PACKAGE)_driver_impl.h \
+	$(PROJECT_DIR)/src/internal/$(PACKAGE)_init_impl.h \
+	$(PROJECT_DIR)/src/internal/$(PACKAGE)_memfn_impl.h \
+	$(PROJECT_DIR)/src/internal/$(PACKAGE)_nolibc_impl.h \
+
+ALL_HEADERS = $(API_HEADERS) $(INTERNAL_HEADERS)
diff --git a/project/osforce.mk b/project/osforce.mk
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/project/osforce.mk
diff --git a/project/overrides.mk b/project/overrides.mk
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/project/overrides.mk
diff --git a/project/tagver.mk b/project/tagver.mk
new file mode 100644
index 0000000..4e744b1
--- /dev/null
+++ b/project/tagver.mk
@@ -0,0 +1,5 @@
+VER_NAMESPACE	= PTYC
+
+VER_MAJOR	= 0
+VER_MINOR	= 0
+VER_PATCH	= 0
diff --git a/project/tree.mk b/project/tree.mk
new file mode 100644
index 0000000..d352c5b
--- /dev/null
+++ b/project/tree.mk
@@ -0,0 +1,9 @@
+tree.tag:
+		mkdir -p src
+		mkdir -p src/driver
+		mkdir -p src/internal
+		mkdir -p src/internal/nolibc
+		mkdir -p src/logic
+		mkdir -p src/output
+		mkdir -p src/skin
+		touch tree.tag
diff --git a/sofort/custom.mk b/sofort/custom.mk
new file mode 100644
index 0000000..8e0bbc4
--- /dev/null
+++ b/sofort/custom.mk
@@ -0,0 +1,76 @@
+ifeq ($(OS_BINFMT),PE)
+include $(PROJECT_DIR)/sysinfo/os/pe.mk
+endif
+
+ifeq ($(OS_BINFMT),ELF)
+include $(PROJECT_DIR)/sysinfo/os/elf.mk
+endif
+
+
+
+ifeq ($(DISABLE_STATIC),yes)
+package-static:
+package-install-static:
+else
+package-static:		static
+package-install-static:	install-static
+endif
+
+ifeq ($(DISABLE_SHARED),yes)
+package-shared:
+package-install-shared:
+else
+package-shared:		shared
+package-install-shared:	install-shared
+endif
+
+
+
+ifeq ($(DISABLE_FRONTEND),yes)
+app-tag:
+package-install-app:
+package-install-extras:
+else
+app-tag:		package-app app.tag
+package-install-app:	install-app
+package-install-extras:	install-extras
+endif
+
+
+
+ifeq ($(ALL_STATIC),yes)
+
+package-app:	static-app
+app:		PACKAGE_APP = $(STATIC_APP)
+app-tag:	PACKAGE_APP = $(STATIC_APP)
+app.tag:	$(STATIC_APP)
+
+
+else ifeq ($(ALL_SHARED),yes)
+
+package-app:	shared-app
+app:		PACKAGE_APP = $(SHARED_APP)
+app-tag:	PACKAGE_APP = $(SHARED_APP)
+app.tag:	$(SHARED_APP)
+
+
+else
+
+package-app:	default-app
+app:		PACKAGE_APP = $(DEFAULT_APP)
+app-tag:	PACKAGE_APP = $(DEFAULT_APP)
+app.tag:	$(DEFAULT_APP)
+
+endif
+
+
+
+ifeq ($(CUSTOM_INSTALL_HEADERS),yes)
+
+install-headers:install-headers-custom
+
+else
+
+install-headers:install-headers-default
+
+endif
diff --git a/sofort/defs.mk b/sofort/defs.mk
new file mode 100644
index 0000000..5810783
--- /dev/null
+++ b/sofort/defs.mk
@@ -0,0 +1,65 @@
+SHARED_LIB_DEPS =
+SHARED_APP_DEPS =
+STATIC_APP_DEPS =
+
+COMMON_LOBJS	= $(COMMON_SRCS:.c=.lo)
+COMMON_OBJS	= $(COMMON_SRCS:.c=.o)
+
+ARCH_LOBJS	= $(ARCH_SRCS:.c=.lo)
+ARCH_OBJS	= $(ARCH_SRCS:.c=.o)
+
+APP_LOBJS	= $(APP_SRCS:.c=.lo)
+APP_OBJS	= $(APP_SRCS:.c=.o)
+
+SHARED_OBJS	= $(COMMON_LOBJS) $(ARCH_LOBJS)
+STATIC_OBJS	= $(COMMON_OBJS)  $(ARCH_OBJS)
+
+STATIC_LIB	= lib/$(OS_LIB_PREFIX)$(PACKAGE)$(OS_ARCHIVE_EXT)
+
+DSO_VER		= $(OS_LIB_PREFIX)$(PACKAGE)$(OS_LIB_SUFFIX)$(VER_XYZ)
+DSO_SONAME	= $(OS_LIB_PREFIX)$(PACKAGE)$(OS_LIB_SUFFIX)$(VER_SONAME)
+DSO_SOLINK	= $(OS_LIB_PREFIX)$(PACKAGE)$(OS_LIB_SUFFIX)
+
+SHARED_LIB	= lib/$(DSO_VER)
+SHARED_SONAME	= lib/$(DSO_SONAME)
+SHARED_SOLINK	= lib/$(DSO_SOLINK)
+
+IMP_DEF		= $(OS_LIB_PREFIX)$(PACKAGE)$(VER_XYZ)$(OS_LIBDEF_EXT)
+IMP_VER		= $(OS_LIB_PREFIX)$(PACKAGE)$(VER_XYZ)$(OS_IMPLIB_EXT)
+IMP_SONAME	= $(OS_LIB_PREFIX)$(PACKAGE)$(VER_SONAME)$(OS_IMPLIB_EXT)
+IMP_SOLINK	= $(OS_LIB_PREFIX)$(PACKAGE)$(OS_IMPLIB_EXT)
+
+IMPLIB_DEF	= lib/$(IMP_DEF)
+IMPLIB_VER	= lib/$(IMP_VER)
+IMPLIB_SONAME	= lib/$(IMP_SONAME)
+IMPLIB_SOLINK	= lib/$(IMP_SOLINK)
+
+APP		= bin/$(OS_APP_PREFIX)$(NICKNAME)$(OS_APP_SUFFIX)
+DEFAULT_APP	= bin/$(OS_APP_PREFIX)$(NICKNAME)-default$(OS_APP_SUFFIX)
+SHARED_APP	= bin/$(OS_APP_PREFIX)$(NICKNAME)-shared$(OS_APP_SUFFIX)
+STATIC_APP	= bin/$(OS_APP_PREFIX)$(NICKNAME)-static$(OS_APP_SUFFIX)
+
+CFLAGS		= $(CFLAGS_DEBUG)  $(CFLAGS_CONFIG)  $(CFLAGS_SYSROOT) \
+		   $(CFLAGS_COMMON) $(CFLAGS_CMDLINE) $(CFLAGS_HOST)	\
+		   $(CFLAGS_PATH) $(CFLAGS_OS) $(CFLAGS_SITE)            \
+		   $(CFLAGS_VERSION) $(CFLAGS_STRICT)                     \
+                   $(CFLAGS_LAST)    $(CFLAGS_ONCE)
+
+CFLAGS_SHARED	= $(CFLAGS) $(CFLAGS_PIC) $(CFLAGS_SHARED_ATTR)
+CFLAGS_STATIC	= $(CFLAGS) $(CFLAGS_OBJ) $(CFLAGS_STATIC_ATTR)
+CFLAGS_APP	= $(CFLAGS) $(CFLAGS_OBJ) $(CFLAGS_APP_ATTR) $(CFLAGS_UTIL)
+
+LDFLAGS_SHARED	= $(LDFLAGS_DEBUG)   $(LDFLAGS_CONFIG)  $(LDFLAGS_SYSROOT) \
+		   $(LDFLAGS_COMMON)  $(LDFLAGS_CMDLINE) $(LDFLAGS_HOST)    \
+		   $(LDFLAGS_PATH)    $(SHARED_LIB_DEPS) $(LDFLAGS_STRICT)   \
+		   $(LDFLAGS_LAST)    $(LDFLAGS_ONCE)
+
+LDFLAGS_APP	= $(LDFLAGS_DEBUG)   $(LDFLAGS_CONFIG)  $(LDFLAGS_SYSROOT) \
+		   $(LDFLAGS_COMMON)  $(LDFLAGS_CMDLINE) $(LDFLAGS_HOST)    \
+		   $(LDFLAGS_PATH)    $(SHARED_APP_DEPS) $(LDFLAGS_STRICT)   \
+		   $(LDFLAGS_UTIL)    $(LDFLAGS_LAST)    $(LDFLAGS_ONCE)
+
+LDFLAGS_STATIC	= $(LDFLAGS_DEBUG)   $(LDFLAGS_CONFIG)  $(LDFLAGS_SYSROOT) \
+		   $(LDFLAGS_COMMON)  $(LDFLAGS_CMDLINE) $(LDFLAGS_HOST)    \
+		   $(LDFLAGS_PATH)    $(STATIC_APP_DEPS) $(LDFLAGS_STRICT)   \
+		   $(LDFLAGS_LAST)    $(LDFLAGS_ONCE)
diff --git a/sofort/version.mk b/sofort/version.mk
new file mode 100644
index 0000000..930a295
--- /dev/null
+++ b/sofort/version.mk
@@ -0,0 +1,63 @@
+include $(PROJECT_DIR)/project/tagver.mk
+
+CFLAGS_VERSION	+= -D$(VER_NAMESPACE)_TAG_VER_MAJOR=$(VER_MAJOR)
+CFLAGS_VERSION	+= -D$(VER_NAMESPACE)_TAG_VER_MINOR=$(VER_MINOR)
+CFLAGS_VERSION	+= -D$(VER_NAMESPACE)_TAG_VER_PATCH=$(VER_PATCH)
+
+ifeq ($(AVOID_VERSION),yes)
+
+VER_XYZ		=
+VER_SONAME	=
+
+package-shared-soname:
+package-shared-solink:
+package-install-soname:
+package-install-solink:
+
+else
+
+VER_XYZ		= .$(VER_MAJOR).$(VER_MINOR).$(VER_PATCH)
+VER_SONAME	= .$(VER_MAJOR)
+
+package-shared-soname:	shared-soname
+package-shared-solink:	shared-solink
+package-install-soname:	install-soname
+package-install-solink:	install-solink
+
+
+
+# libfoo.so (common)
+install-solink:		install-lib
+			rm -f $@.tmp
+			ln -s $(DSO_VER) $@.tmp
+			mv $@.tmp $(DESTDIR)$(LIBDIR)/$(DSO_SOLINK)
+
+$(SHARED_SOLINK):	$(SHARED_LIB)
+			rm -f $@.tmp
+			ln -s $(DSO_VER) $@.tmp
+			mv $@.tmp $@
+
+# libfoo.so.x (symlink)
+ifeq ($(OS_SONAME),symlink)
+$(SHARED_SONAME):	$(SHARED_LIB)
+			rm -f $@.tmp
+			ln -s $(DSO_VER) $@.tmp
+			mv $@.tmp $@
+
+install-soname:		install-lib
+			rm -f $@.tmp
+			ln -s $(DSO_VER) $@.tmp
+			mv $@.tmp $(DESTDIR)$(LIBDIR)/$(DSO_SONAME)
+endif
+
+
+# libfoo.so.x (copy)
+ifeq ($(OS_SONAME),copy)
+install-soname:		install-lib
+			cp $(SHARED_LIB) $(DESTDIR)$(LIBDIR)/$(DSO_SONAME)
+
+$(SHARED_SONAME):	$(SHARED_LIB)
+			cp $(SHARED_LIB) $(SHARED_SONAME)
+endif
+
+endif
diff --git a/src/driver/ptyc_amain.c b/src/driver/ptyc_amain.c
new file mode 100644
index 0000000..4762d3a
--- /dev/null
+++ b/src/driver/ptyc_amain.c
@@ -0,0 +1,74 @@
+/*********************************************************/
+/*  ptycon: a pty-console bridge                         */
+/*  Copyright (C) 2016  Z. Gilboa                        */
+/*  Released under GPLv2 and GPLv3; see COPYING.PTYCON.  */
+/*********************************************************/
+
+#include <ntapi/ntapi.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <ptycon/ptycon.h>
+#include "ptycon_init_impl.h"
+#include "ptycon_driver_impl.h"
+#include "ptycon_nolibc_impl.h"
+
+#ifndef PTYC_DRIVER_FLAGS
+#define PTYC_DRIVER_FLAGS	PTYC_DRIVER_VERBOSITY_ERRORS \
+				| PTYC_DRIVER_VERBOSITY_USAGE
+#endif
+
+static const char vermsg[] = "%s%s%s (git://midipix.org/ptycon): "
+			     "version %s%d.%d.%d%s.\n"
+			     "[commit reference: %s%s%s]\n";
+
+static const char * const ptyc_ver_color[6] = {
+		"\x1b[1m\x1b[35m","\x1b[0m",
+		"\x1b[1m\x1b[32m","\x1b[0m",
+		"\x1b[1m\x1b[34m","\x1b[0m"
+};
+
+static const char * const ptyc_ver_plain[6] = {
+		"","",
+		"","",
+		"",""
+};
+
+static ssize_t ptyc_version(struct ptyc_driver_ctx * dctx)
+{
+	const struct ptyc_source_version * verinfo;
+	const char * const * verclr;
+
+	verinfo = ptyc_source_version();
+	verclr  = isatty(STDOUT_FILENO) ? ptyc_ver_color : ptyc_ver_plain;
+
+	return fprintf(stdout,vermsg,
+			verclr[0],dctx->program,verclr[1],
+			verclr[2],verinfo->major,verinfo->minor,
+			verinfo->revision,verclr[3],
+			verclr[4],verinfo->commit,verclr[5]);
+}
+
+static int ptyc_exit(struct ptyc_driver_ctx * dctx, int nerrors)
+{
+	ptyc_free_driver_ctx(dctx);
+	return nerrors ? 2 : 0;
+}
+
+int ptyc_main(int argc, char ** argv, char ** envp)
+{
+	int				ret;
+	struct ptyc_driver_ctx *	dctx;
+
+	if ((ret = ptyc_init()))
+		return ret;
+
+	if ((ret = ptyc_get_driver_ctx(argv,envp,PTYC_DRIVER_FLAGS,&dctx)))
+		return (ret == PTYC_USAGE) ? !--argc : 2;
+
+	if (dctx->cctx->drvflags & PTYC_DRIVER_VERSION)
+		if ((ptyc_version(dctx)) < 0)
+			return ptyc_exit(dctx,2);
+
+	return ptyc_exit(dctx,ret);
+}
diff --git a/src/driver/ptyc_driver_ctx.c b/src/driver/ptyc_driver_ctx.c
new file mode 100644
index 0000000..cc50e36
--- /dev/null
+++ b/src/driver/ptyc_driver_ctx.c
@@ -0,0 +1,209 @@
+/*********************************************************/
+/*  ptycon: a pty-console bridge                         */
+/*  Copyright (C) 2016  Z. Gilboa                        */
+/*  Released under GPLv2 and GPLv3; see COPYING.PTYCON.  */
+/*********************************************************/
+
+#include <ntapi/ntapi.h>
+#include <stdint.h>
+
+#include <ptycon/ptycon.h>
+#include "ptycon_init_impl.h"
+#include "ptycon_nolibc_impl.h"
+
+#define ARGV_DRIVER
+
+#include "ptycon_version.h"
+#include "ptycon_driver_impl.h"
+#include "argv/argv.h"
+
+/* ntapi accessor table */
+const ntapi_vtbl * ptyc_ntapi;
+
+/* package info */
+static const struct ptyc_source_version ptyc_src_version = {
+	PTYC_TAG_VER_MAJOR,
+	PTYC_TAG_VER_MINOR,
+	PTYC_TAG_VER_PATCH,
+	PTYCON_GIT_VERSION
+};
+
+struct ptyc_driver_ctx_alloc {
+	struct argv_meta *		meta;
+	struct ptyc_driver_ctx_impl	ctx;
+	uint64_t			guard;
+	const char *			units[];
+};
+
+static uint32_t ptyc_argv_flags(uint32_t flags)
+{
+	uint32_t ret = 0;
+
+	if (flags & PTYC_DRIVER_VERBOSITY_NONE)
+		ret |= ARGV_VERBOSITY_NONE;
+
+	if (flags & PTYC_DRIVER_VERBOSITY_ERRORS)
+		ret |= ARGV_VERBOSITY_ERRORS;
+
+	if (flags & PTYC_DRIVER_VERBOSITY_STATUS)
+		ret |= ARGV_VERBOSITY_STATUS;
+
+	return ret;
+}
+
+static int ptyc_driver_usage(
+	const char *			program,
+	const char *			arg,
+	const struct argv_option *	options,
+	struct argv_meta *		meta)
+{
+	char header[512];
+
+	snprintf(header,sizeof(header),
+		"Usage: %s [options] <file>...\n" "Options:\n",
+		program);
+
+	argv_usage(stdout,header,options,arg);
+	argv_free(meta);
+
+	return PTYC_USAGE;
+}
+
+static struct ptyc_driver_ctx_impl * ptyc_driver_ctx_alloc(
+	struct argv_meta *		meta,
+	const struct ptyc_common_ctx *	cctx,
+	size_t				nunits)
+{
+	struct ptyc_driver_ctx_alloc *	ictx;
+	size_t				size;
+	struct argv_entry *		entry;
+	const char **			units;
+
+	size =  sizeof(struct ptyc_driver_ctx_alloc);
+	size += (nunits+1)*sizeof(const char *);
+
+	if (!(ictx = calloc(1,size)))
+		return 0;
+
+	if (cctx)
+		memcpy(&ictx->ctx.cctx,cctx,sizeof(*cctx));
+
+	for (entry=meta->entries,units=ictx->units; entry->fopt || entry->arg; entry++)
+		if (!entry->fopt)
+			*units++ = entry->arg;
+
+	ictx->meta = meta;
+	ictx->ctx.ctx.units = ictx->units;
+	return &ictx->ctx;
+}
+
+static int ptyc_get_driver_ctx_fail(struct argv_meta * meta)
+{
+	argv_free(meta);
+	return -1;
+}
+
+int ptyc_get_driver_ctx(
+	char **				argv,
+	char **				envp,
+	uint32_t			flags,
+	struct ptyc_driver_ctx **	pctx)
+{
+	struct ptyc_driver_ctx_impl *	ctx;
+	struct ptyc_common_ctx		cctx;
+	const struct argv_option *	options;
+	struct argv_meta *		meta;
+	struct argv_entry *		entry;
+	size_t				nunits;
+	const char *			program;
+
+	(void)envp;
+
+	if (ptyc_init())
+		return -1;
+
+	options = ptyc_default_options;
+
+	if (!(meta = argv_get(argv,options,ptyc_argv_flags(flags))))
+		return -1;
+
+	nunits	= 0;
+	program = argv_program_name(argv[0]);
+	memset(&cctx,0,sizeof(cctx));
+	cctx.drvflags = flags;
+
+	if (!argv[1] && (flags & PTYC_DRIVER_VERBOSITY_USAGE))
+		return ptyc_driver_usage(program,0,options,meta);
+
+	/* get options, count units */
+	for (entry=meta->entries; entry->fopt || entry->arg; entry++) {
+		if (entry->fopt) {
+			switch (entry->tag) {
+				case TAG_HELP:
+					if (flags & PTYC_DRIVER_VERBOSITY_USAGE)
+						return ptyc_driver_usage(program,entry->arg,options,meta);
+
+				case TAG_VERSION:
+					cctx.drvflags |= PTYC_DRIVER_VERSION;
+					break;
+			}
+		} else
+			nunits++;
+	}
+
+	if (!(ctx = ptyc_driver_ctx_alloc(meta,&cctx,nunits)))
+		return ptyc_get_driver_ctx_fail(meta);
+
+	ctx->ctx.program	= program;
+	ctx->ctx.cctx		= &ctx->cctx;
+
+	*pctx = &ctx->ctx;
+	return PTYC_OK;
+}
+
+int ptyc_create_driver_ctx(
+	const struct ptyc_common_ctx *	cctx,
+	struct ptyc_driver_ctx **	pctx)
+{
+	struct argv_meta *		meta;
+	struct ptyc_driver_ctx_impl *	ctx;
+	char *				argv[] = {"ptycon_driver",0};
+
+	if (ptyc_init())
+		return -1;
+
+	if (!(meta = argv_get(argv,ptyc_default_options,0)))
+		return -1;
+
+	if (!(ctx = ptyc_driver_ctx_alloc(meta,cctx,0)))
+		return ptyc_get_driver_ctx_fail(0);
+
+	ctx->ctx.cctx = &ctx->cctx;
+	memcpy(&ctx->cctx,cctx,sizeof(*cctx));
+	*pctx = &ctx->ctx;
+	return PTYC_OK;
+}
+
+static void ptyc_free_driver_ctx_impl(struct ptyc_driver_ctx_alloc * ictx)
+{
+	argv_free(ictx->meta);
+	free(ictx);
+}
+
+void ptyc_free_driver_ctx(struct ptyc_driver_ctx * ctx)
+{
+	struct ptyc_driver_ctx_alloc *	ictx;
+	uintptr_t			addr;
+
+	if (ctx) {
+		addr = (uintptr_t)ctx - offsetof(struct ptyc_driver_ctx_alloc,ctx);
+		addr = addr - offsetof(struct ptyc_driver_ctx_impl,ctx);
+		ictx = (struct ptyc_driver_ctx_alloc *)addr;
+		ptyc_free_driver_ctx_impl(ictx);
+	}
+}
+
+const struct ptyc_source_version * ptyc_source_version(void)
+{
+	return &ptyc_src_version;
+}
diff --git a/src/internal/argv/argv.h b/src/internal/argv/argv.h
new file mode 100644
index 0000000..ece92c7
--- /dev/null
+++ b/src/internal/argv/argv.h
@@ -0,0 +1,907 @@
+/****************************************************************************/
+/*  argv.h: a thread-safe argument vector parser and usage screen generator */
+/*  Copyright (C) 2015--2016  Z. Gilboa                                     */
+/*  Released under GPLv2 and GPLv3; see COPYING.PTYCON.                     */
+/*  This file is (also) part of sofort: portable software project template. */
+/****************************************************************************/
+
+#ifndef ARGV_H
+#define ARGV_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#define ARGV_VERBOSITY_NONE		0x00
+#define ARGV_VERBOSITY_ERRORS		0x01
+#define ARGV_VERBOSITY_STATUS		0x02
+#define ARGV_CLONE_VECTOR		0x80
+
+#ifndef ARGV_TAB_WIDTH
+#define ARGV_TAB_WIDTH			8
+#endif
+
+/*******************************************/
+/*                                         */
+/* support of hybrid options               */
+/* -------------------------               */
+/* hybrid options are very similar to      */
+/* long options, yet are prefixed by       */
+/* a single dash rather than two           */
+/* (i.e. -std, -isystem).                  */
+/* hybrid options are supported by this    */
+/* driver for compatibility with legacy    */
+/* tools; note, however, that the use      */
+/* of hybrid options should be strongly    */
+/* discouraged due to the limitations      */
+/* they impose on short options (for       */
+/* example, a driver implementing -std     */
+/* may not provide -s as a short option    */
+/* that takes an arbitrary value).         */
+/*                                         */
+/* SPACE: -hybrid VALUE (i.e. -MF file)    */
+/* EQUAL: -hybrid=VALUE (i.e. -std=c99)    */
+/* COMMA: -hybrid,VALUE (i.e. -Wl,<arg>)   */
+/* ONLY:  -opt accepted, --opt rejected    */
+/* JOINED: -optVALUE                       */
+/*                                         */
+/*******************************************/
+
+
+#define ARGV_OPTION_HYBRID_NONE		0x00
+#define ARGV_OPTION_HYBRID_ONLY		0x01
+#define ARGV_OPTION_HYBRID_SPACE	0x02
+#define ARGV_OPTION_HYBRID_EQUAL	0x04
+#define ARGV_OPTION_HYBRID_COMMA	0x08
+#define ARGV_OPTION_HYBRID_JOINED	0x10
+#define ARGV_OPTION_HYBRID_CIRCUS	(ARGV_OPTION_HYBRID_SPACE \
+					| ARGV_OPTION_HYBRID_JOINED)
+#define ARGV_OPTION_HYBRID_DUAL		(ARGV_OPTION_HYBRID_SPACE \
+					| ARGV_OPTION_HYBRID_EQUAL)
+#define ARGV_OPTION_HYBRID_SWITCH	(ARGV_OPTION_HYBRID_ONLY \
+					| ARGV_OPTION_HYBRID_SPACE \
+					| ARGV_OPTION_HYBRID_EQUAL \
+					| ARGV_OPTION_HYBRID_COMMA \
+					| ARGV_OPTION_HYBRID_JOINED)
+
+enum argv_optarg {
+	ARGV_OPTARG_NONE,
+	ARGV_OPTARG_REQUIRED,
+	ARGV_OPTARG_OPTIONAL,
+};
+
+enum argv_mode {
+	ARGV_MODE_SCAN,
+	ARGV_MODE_COPY,
+};
+
+enum argv_error {
+	ARGV_ERROR_OK,
+	ARGV_ERROR_INTERNAL,
+	ARGV_ERROR_SHORT_OPTION,
+	ARGV_ERROR_LONG_OPTION,
+	ARGV_ERROR_OPTARG_NONE,
+	ARGV_ERROR_OPTARG_REQUIRED,
+	ARGV_ERROR_OPTARG_PARADIGM,
+	ARGV_ERROR_HYBRID_NONE,
+	ARGV_ERROR_HYBRID_ONLY,
+	ARGV_ERROR_HYBRID_SPACE,
+	ARGV_ERROR_HYBRID_EQUAL,
+	ARGV_ERROR_HYBRID_COMMA,
+};
+
+struct argv_option {
+	const char *		long_name;
+	const char		short_name;
+	int			tag;
+	enum argv_optarg	optarg;
+	int			flags;
+	const char *		paradigm;
+	const char *		argname;
+	const char *		description;
+};
+
+struct argv_entry {
+	const char *	arg;
+	int		tag;
+	bool		fopt;
+	bool		fval;
+	bool		fnoscan;
+	enum argv_error errcode;
+};
+
+struct argv_meta {
+	char **			argv;
+	struct argv_entry *	entries;
+};
+
+struct argv_meta_impl {
+	char **			argv;
+	char *			strbuf;
+	struct argv_meta	meta;
+};
+
+struct argv_ctx {
+	int				flags;
+	int				mode;
+	int				nentries;
+	int				unitidx;
+	int				erridx;
+	enum argv_error 		errcode;
+	const char *			errch;
+	const struct argv_option *	erropt;
+	const char *			program;
+};
+
+#ifdef ARGV_DRIVER
+
+static const char * argv_program_name(const char *);
+
+static void argv_usage(
+	FILE *,
+	const char *	header,
+	const struct	argv_option[],
+	const char *	mode);
+
+static struct argv_meta * argv_get(
+	char **,
+	const struct argv_option[],
+	int flags);
+
+static void argv_free(struct argv_meta *);
+
+
+
+
+/*------------------------------------*/
+/* implementation of static functions */
+/*------------------------------------*/
+
+static const struct argv_option * argv_short_option(
+	const char *			ch,
+	const struct argv_option	options[],
+	struct argv_entry *		entry)
+{
+	const struct argv_option *	option;
+
+	for (option=options; option->long_name || option->short_name; option++) {
+		if (option->short_name == *ch) {
+			entry->tag	= option->tag;
+			entry->fopt	= true;
+			return option;
+		}
+	}
+
+	return 0;
+}
+
+static const struct argv_option * argv_long_option(
+	const char *			ch,
+	const struct argv_option	options[],
+	struct argv_entry *		entry)
+{
+	const struct argv_option *	option;
+	const char *			arg;
+	size_t				len;
+
+	for (option=options; option->long_name || option->short_name; option++) {
+		len = option->long_name ? strlen(option->long_name) : 0;
+
+		if (len && !(strncmp(option->long_name,ch,len))) {
+			arg = ch + len;
+
+			if (!*arg
+				|| (*arg == '=')
+				|| (option->flags & ARGV_OPTION_HYBRID_JOINED)
+				|| ((option->flags & ARGV_OPTION_HYBRID_COMMA)
+					&& (*arg == ','))) {
+				entry->tag	= option->tag;
+				entry->fopt	= true;
+				return option;
+			}
+		}
+	}
+
+	return 0;
+}
+
+static inline bool is_short_option(const char * arg)
+{
+	return (arg[0]=='-') && arg[1] && (arg[1]!='-');
+}
+
+static inline bool is_long_option(const char * arg)
+{
+	return (arg[0]=='-') && (arg[1]=='-') && arg[2];
+}
+
+static inline bool is_last_option(const char * arg)
+{
+	return (arg[0]=='-') && (arg[1]=='-') && !arg[2];
+}
+
+static inline bool is_hybrid_option(
+	const char *			arg,
+	const struct argv_option	options[])
+{
+	const struct argv_option *	option;
+	struct argv_entry		entry;
+
+	if (!is_short_option(arg))
+		return false;
+
+	if (!(option = argv_long_option(++arg,options,&entry)))
+		return false;
+
+	if (!(option->flags & ARGV_OPTION_HYBRID_SWITCH))
+		if (argv_short_option(arg,options,&entry))
+			return false;
+
+	return true;
+}
+
+static inline bool is_arg_in_paradigm(const char * arg, const char * paradigm)
+{
+	size_t		len;
+	const char *	ch;
+
+	for (ch=paradigm,len=strlen(arg); ch; ) {
+		if (!strncmp(arg,ch,len)) {
+			if (!*(ch += len))
+				return true;
+			else if (*ch == '|')
+				return true;
+		}
+
+		if ((ch = strchr(ch,'|')))
+			ch++;
+	}
+
+	return false;
+}
+
+static inline const struct argv_option * option_from_tag(
+	const struct argv_option	options[],
+	int				tag)
+{
+	const struct argv_option *	option;
+
+	for (option=options; option->short_name || option->long_name; option++)
+		if (option->tag == tag)
+			return option;
+	return 0;
+}
+
+static void argv_scan(
+	char **				argv,
+	const struct argv_option	options[],
+	struct argv_ctx *		ctx,
+	struct argv_meta *		meta)
+{
+	char **				parg;
+	const char *			ch;
+	const char *			val;
+	const struct argv_option *	option;
+	struct argv_entry		entry;
+	struct argv_entry *		mentry;
+	enum argv_error			ferr;
+	bool				fval;
+	bool				fnext;
+	bool				fshort;
+	bool				fhybrid;
+	bool				fnoscan;
+
+	parg	= &argv[1];
+	ch	= *parg;
+	ferr	= ARGV_ERROR_OK;
+	fshort	= false;
+	fnoscan	= false;
+	fval	= false;
+	mentry	= meta ? meta->entries : 0;
+
+	ctx->unitidx = 0;
+	ctx->erridx  = 0;
+
+	while (ch && (ferr == ARGV_ERROR_OK)) {
+		option  = 0;
+		fhybrid = false;
+
+		if (fnoscan)
+			fval = true;
+
+		else if (is_last_option(ch))
+			fnoscan = true;
+
+		else if (!fshort && is_hybrid_option(ch,options))
+			fhybrid = true;
+
+		if (!fnoscan && !fhybrid && (fshort || is_short_option(ch))) {
+			if (!fshort)
+				ch++;
+
+			if ((option = argv_short_option(ch,options,&entry))) {
+				if (ch[1]) {
+					ch++;
+					fnext	= false;
+					fshort	= (option->optarg == ARGV_OPTARG_NONE);
+				} else {
+					parg++;
+					ch	= *parg;
+					fnext	= true;
+					fshort	= false;
+				}
+
+				if (option->optarg == ARGV_OPTARG_NONE) {
+					if (!fnext && ch && (*ch == '-'))
+						ferr = ARGV_ERROR_OPTARG_NONE;
+					else
+						fval = false;
+				} else if (!fnext)
+					fval = true;
+				else if (option->optarg == ARGV_OPTARG_REQUIRED) {
+					if (ch && is_short_option(ch))
+						ferr = ARGV_ERROR_OPTARG_REQUIRED;
+					else if (ch && is_long_option(ch))
+						ferr = ARGV_ERROR_OPTARG_REQUIRED;
+					else if (ch && is_last_option(ch))
+						ferr = ARGV_ERROR_OPTARG_REQUIRED;
+					else if (ch)
+						fval = true;
+					else
+						ferr = ARGV_ERROR_OPTARG_REQUIRED;
+				} else {
+					/* ARGV_OPTARG_OPTIONAL */
+					if (ch && is_short_option(ch))
+						fval = false;
+					else if (ch && is_long_option(ch))
+						fval = false;
+					else if (ch && is_last_option(ch))
+						fval = false;
+					else
+						fval = ch;
+				}
+			} else
+				ferr = ARGV_ERROR_SHORT_OPTION;
+
+		} else if (!fnoscan && (fhybrid || is_long_option(ch))) {
+			ch += (fhybrid ? 1 : 2);
+
+			if ((option = argv_long_option(ch,options,&entry))) {
+				val = ch + strlen(option->long_name);
+
+				/* val[0] is either '=' (or ',') or '\0' */
+				if (!val[0]) {
+					parg++;
+					ch = *parg;
+				}
+
+				if (fhybrid && !(option->flags & ARGV_OPTION_HYBRID_SWITCH))
+					ferr = ARGV_ERROR_HYBRID_NONE;
+				else if (!fhybrid && (option->flags & ARGV_OPTION_HYBRID_ONLY))
+					ferr = ARGV_ERROR_HYBRID_ONLY;
+				else if (option->optarg == ARGV_OPTARG_NONE) {
+					if (val[0]) {
+						ferr = ARGV_ERROR_OPTARG_NONE;
+						ctx->errch = val + 1;
+					} else
+						fval = false;
+				} else if (val[0] && (option->flags & ARGV_OPTION_HYBRID_JOINED)) {
+					fval = true;
+					ch   = val;
+				} else if (fhybrid && !val[0] && !(option->flags & ARGV_OPTION_HYBRID_SPACE))
+					ferr = ARGV_ERROR_HYBRID_SPACE;
+				else if (fhybrid && (val[0]=='=') && !(option->flags & ARGV_OPTION_HYBRID_EQUAL))
+					ferr = ARGV_ERROR_HYBRID_EQUAL;
+				else if (fhybrid && (val[0]==',') && !(option->flags & ARGV_OPTION_HYBRID_COMMA))
+					ferr = ARGV_ERROR_HYBRID_COMMA;
+				else if (!fhybrid && (val[0]==','))
+					ferr = ARGV_ERROR_HYBRID_COMMA;
+				else if (val[0] && !val[1])
+					ferr = ARGV_ERROR_OPTARG_REQUIRED;
+				else if (val[0] && val[1]) {
+					fval = true;
+					ch   = ++val;
+				} else if (option->optarg == ARGV_OPTARG_REQUIRED) {
+					if (!val[0] && !*parg)
+						ferr = ARGV_ERROR_OPTARG_REQUIRED;
+					else if (*parg && is_short_option(*parg))
+						ferr = ARGV_ERROR_OPTARG_REQUIRED;
+					else if (*parg && is_long_option(*parg))
+						ferr = ARGV_ERROR_OPTARG_REQUIRED;
+					else if (*parg && is_last_option(*parg))
+						ferr = ARGV_ERROR_OPTARG_REQUIRED;
+					else
+						fval = true;
+				} else {
+					/* ARGV_OPTARG_OPTIONAL */
+					fval = val[0];
+				}
+			} else
+				ferr = ARGV_ERROR_LONG_OPTION;
+		}
+
+		if (ferr == ARGV_ERROR_OK)
+			if (option && fval && option->paradigm)
+				if (!is_arg_in_paradigm(ch,option->paradigm))
+					ferr = ARGV_ERROR_OPTARG_PARADIGM;
+
+		if (ferr == ARGV_ERROR_OK)
+			if (!option && !ctx->unitidx)
+				ctx->unitidx = parg - argv;
+
+		if (ferr != ARGV_ERROR_OK) {
+			ctx->errcode = ferr;
+			ctx->errch   = ctx->errch ? ctx->errch : ch;
+			ctx->erropt  = option;
+			ctx->erridx  = parg - argv;
+			return;
+		} else if (ctx->mode == ARGV_MODE_SCAN) {
+			if (!fnoscan)
+				ctx->nentries++;
+			else if (fval)
+				ctx->nentries++;
+
+			if (fval || !option) {
+				parg++;
+				ch = *parg;
+			}
+		} else if (ctx->mode == ARGV_MODE_COPY) {
+			if (fnoscan) {
+				if (fval) {
+					mentry->arg	= ch;
+					mentry->fnoscan = true;
+					mentry++;
+				}
+
+				parg++;
+				ch = *parg;
+			} else if (option) {
+				mentry->arg	= fval ? ch : 0;
+				mentry->tag	= option->tag;
+				mentry->fopt	= true;
+				mentry->fval	= fval;
+				mentry++;
+
+				if (fval) {
+					parg++;
+					ch = *parg;
+				}
+			} else {
+				mentry->arg = ch;
+				mentry++;
+				parg++;
+				ch = *parg;
+			}
+		}
+	}
+}
+
+static const char * argv_program_name(const char * program_path)
+{
+	const char * ch;
+
+	if (program_path) {
+		if ((ch = strrchr(program_path,'/')))
+			return *(++ch) ? ch : 0;
+
+		if ((ch = strrchr(program_path,'\\')))
+			return *(++ch) ? ch : 0;
+	}
+
+	return program_path;
+}
+
+static void argv_show_error(struct argv_ctx * ctx)
+{
+	fprintf(stderr,"%s: error: ",ctx->program);
+
+	switch (ctx->errcode) {
+		case ARGV_ERROR_SHORT_OPTION:
+			fprintf(stderr,"'-%c' is not a valid short option\n",*ctx->errch);
+			break;
+
+		case ARGV_ERROR_LONG_OPTION:
+			fprintf(stderr,"'--%s' is not a valid long option\n",ctx->errch);
+			break;
+
+		case ARGV_ERROR_OPTARG_NONE:
+			fprintf(stderr,"'%s' is not a valid option value for [%s%c%s%s%s] "
+					"(option values may not be specified)\n",
+				ctx->errch,
+				ctx->erropt->short_name ? "-" : "",
+				ctx->erropt->short_name,
+				ctx->erropt->short_name ? "," : "",
+				ctx->erropt->long_name ? "--" : "",
+				ctx->erropt->long_name);
+			break;
+
+		case ARGV_ERROR_OPTARG_REQUIRED:
+			fprintf(stderr,"option [%s%c%s%s%s] requires %s %s%s%s\n",
+				ctx->erropt->short_name ? "-" : "",
+				ctx->erropt->short_name,
+				ctx->erropt->short_name ? "," : "",
+				ctx->erropt->long_name ? "--" : "",
+				ctx->erropt->long_name,
+				ctx->erropt->paradigm ? "one of the following values:" : "a value",
+				ctx->erropt->paradigm ? "{" : "",
+				ctx->erropt->paradigm ? ctx->erropt->paradigm : "",
+				ctx->erropt->paradigm ? "}" : "");
+			break;
+
+		case ARGV_ERROR_OPTARG_PARADIGM:
+			fprintf(stderr,"'%s' is not a valid option value for [%s%c%s%s%s]={%s}\n",
+				ctx->errch,
+				ctx->erropt->short_name ? "-" : "",
+				ctx->erropt->short_name,
+				ctx->erropt->short_name ? "," : "",
+				ctx->erropt->long_name ? "--" : "",
+				ctx->erropt->long_name,
+				ctx->erropt->paradigm);
+			break;
+
+		case ARGV_ERROR_HYBRID_NONE:
+			fprintf(stderr,"-%s is not a synonym for --%s\n",
+				ctx->erropt->long_name,
+				ctx->erropt->long_name);
+			break;
+
+		case ARGV_ERROR_HYBRID_ONLY:
+			fprintf(stderr,"--%s is not a synonym for -%s\n",
+				ctx->erropt->long_name,
+				ctx->erropt->long_name);
+			break;
+
+		case ARGV_ERROR_HYBRID_SPACE:
+		case ARGV_ERROR_HYBRID_EQUAL:
+		case ARGV_ERROR_HYBRID_COMMA:
+			fprintf(stderr,"-%s: illegal value assignment; valid syntax is "
+					"-%s%sVAL\n",
+				ctx->erropt->long_name,
+				ctx->erropt->long_name,
+				(ctx->erropt->flags & ARGV_OPTION_HYBRID_SPACE)
+					? " " : (ctx->erropt->flags & ARGV_OPTION_HYBRID_EQUAL)
+					? "=" : (ctx->erropt->flags & ARGV_OPTION_HYBRID_COMMA)
+					? "," : "");
+
+			break;
+
+		case ARGV_ERROR_INTERNAL:
+			fputs("internal error",stderr);
+			break;
+
+		default:
+			break;
+	}
+}
+
+static void argv_show_status(
+	const struct argv_option	options[],
+	struct argv_ctx *		ctx,
+	struct argv_meta *		meta)
+{
+	int				argc;
+	char **				argv;
+	struct argv_entry *		entry;
+	const struct argv_option *	option;
+	char				short_name[2] = {0};
+	const char *			space = "";
+
+	(void)ctx;
+
+	fputs("\n\nconcatenated command line:\n",stderr);
+	for (argv=meta->argv; *argv; argv++) {
+		fprintf(stderr,"%s%s",space,*argv);
+		space = " ";
+	}
+
+	fputs("\n\nargument vector:\n",stderr);
+	for (argc=0,argv=meta->argv; *argv; argc++,argv++)
+		fprintf(stderr,"argv[%d]: %s\n",argc,*argv);
+
+	fputs("\n\nparsed entries:\n",stderr);
+	for (entry=meta->entries; entry->arg || entry->fopt; entry++)
+		if (entry->fopt) {
+			option = option_from_tag(options,entry->tag);
+			short_name[0] = option->short_name;
+
+			if (entry->fval)
+				fprintf(stderr,"[-%s,--%s] := %s\n",
+					short_name,option->long_name,entry->arg);
+			else
+				fprintf(stderr,"[-%s,--%s]\n",
+					short_name,option->long_name);
+		} else
+			fprintf(stderr,"<program arg> := %s\n",entry->arg);
+
+	fputs("\n\n",stderr);
+}
+
+static struct argv_meta * argv_free_impl(struct argv_meta_impl * imeta)
+{
+	if (imeta->argv)
+		free(imeta->argv);
+
+	if (imeta->strbuf)
+		free(imeta->strbuf);
+
+	if (imeta->meta.entries)
+		free(imeta->meta.entries);
+
+	free(imeta);
+	return 0;
+}
+
+static struct argv_meta * argv_alloc(char ** argv, struct argv_ctx * ctx)
+{
+	struct argv_meta_impl * imeta;
+	char **			vector;
+	char *			dst;
+	size_t			size;
+	int			argc;
+	int			i;
+
+	if (!(imeta = calloc(1,sizeof(*imeta))))
+		return 0;
+
+	if (ctx->flags & ARGV_CLONE_VECTOR) {
+		for (vector=argv,argc=0,size=0; *vector; vector++) {
+			size += strlen(*vector) + 1;
+			argc++;
+		}
+
+		if (!(imeta->argv = calloc(argc+1,sizeof(char *))))
+			return argv_free_impl(imeta);
+		else if (!(imeta->strbuf = calloc(1,size+1)))
+			return argv_free_impl(imeta);
+
+		for (i=0,dst=imeta->strbuf; i<argc; i++) {
+			strcpy(dst,argv[i]);
+			imeta->argv[i] = dst;
+			dst += strlen(dst)+1;
+		}
+
+		imeta->meta.argv = imeta->argv;
+	} else
+		imeta->meta.argv = argv;
+
+	if (!(imeta->meta.entries = calloc(
+				ctx->nentries+1,
+				sizeof(struct argv_entry))))
+		return argv_free_impl(imeta);
+	else
+		return &imeta->meta;
+}
+
+static struct argv_meta * argv_get(
+	char *				argv[],
+	const struct argv_option	options[],
+	int				flags)
+{
+	struct argv_meta *	meta;
+	struct argv_ctx		ctx = {flags,ARGV_MODE_SCAN,0,0,0,0,0,0,0};
+
+	argv_scan(argv,options,&ctx,0);
+
+	if (ctx.errcode != ARGV_ERROR_OK) {
+		if (!ctx.program)
+			ctx.program = argv_program_name(argv[0]);
+
+		if (ctx.flags & ARGV_VERBOSITY_ERRORS)
+			argv_show_error(&ctx);
+
+		return 0;
+	}
+
+	if (!(meta = argv_alloc(argv,&ctx)))
+		return 0;
+
+	ctx.mode = ARGV_MODE_COPY;
+	argv_scan(meta->argv,options,&ctx,meta);
+
+	if (ctx.errcode != ARGV_ERROR_OK) {
+		if (!ctx.program)
+			ctx.program = argv[0];
+
+		ctx.errcode = ARGV_ERROR_INTERNAL;
+		argv_show_error(&ctx);
+		argv_free(meta);
+
+		return 0;
+	}
+
+	if (ctx.flags & ARGV_VERBOSITY_STATUS)
+		argv_show_status(options,&ctx,meta);
+
+	return meta;
+}
+
+static void argv_free(struct argv_meta * xmeta)
+{
+	struct argv_meta_impl * imeta;
+	uintptr_t		addr;
+
+	if (xmeta) {
+		addr  = (uintptr_t)xmeta - offsetof(struct argv_meta_impl,meta);
+		imeta = (struct argv_meta_impl *)addr;
+		argv_free_impl(imeta);
+	}
+}
+
+static void argv_usage(
+	FILE *				file,
+	const char *    		header,
+	const struct argv_option	options[],
+	const char *			mode)
+{
+	const struct argv_option *	option;
+	bool				fshort,flong,fboth;
+	size_t				len,optlen,desclen;
+	char				cache;
+	char *				prefix;
+	char *				desc;
+	char *				mark;
+	char *				cap;
+	char				description[4096];
+	char				optstr     [72];
+	const size_t			optcap    = 64;
+	const size_t			width     = 80;
+	const char			indent[]  = "  ";
+	const char			creset[]  = "\x1b[0m";
+	const char			cbold []  = "\x1b[1m";
+	const char			cgreen[]  = "\x1b[32m";
+	const char			cblue []  = "\x1b[34m";
+	const char			ccyan []  = "\x1b[36m";
+	const char *			color     = ccyan;
+	bool				fcolor;
+
+	fshort = mode ? !strcmp(mode,"short") : 0;
+	flong  = fshort ? 0 : mode && !strcmp(mode,"long");
+	fboth  = !fshort && !flong;
+	fcolor = isatty(fileno(file));
+
+	if (fcolor)
+		fprintf(file,"%s%s",cbold,cgreen);
+
+	if (header)
+		fprintf(file,"%s",header);
+
+	option = options;
+	optlen = 0;
+
+	for (; option->short_name || option->long_name; option++) {
+		/* indent + comma */
+		len = fboth ? sizeof(indent) + 1 : sizeof(indent);
+
+		/* -o */
+		if (fshort || fboth)
+			len += option->short_name
+				? 2 : 0;
+
+		/* --option */
+		if (flong || fboth)
+			len += option->long_name
+				? 2 + strlen(option->long_name) : 0;
+
+		/* optlen */
+		if (len > optlen)
+			optlen = len;
+	}
+
+	if (optlen >= optcap) {
+		fprintf(stderr,
+			"Option strings exceed %zu characters, "
+			"please generate the usage screen manually.\n",
+			optcap);
+		return;
+	}
+
+	optlen += ARGV_TAB_WIDTH;
+	optlen &= (~(ARGV_TAB_WIDTH-1));
+	desclen = (optlen < width / 2) ? width - optlen : optlen;
+
+	for (option=options; option->short_name || option->long_name; option++) {
+		/* color */
+		if (fcolor) {
+			color = (color == ccyan) ? cblue : ccyan;
+			fputs(color,file);
+		}
+
+		/* description, using either paradigm or argname if applicable */
+		snprintf(description,sizeof(description),option->description,
+			option->paradigm
+				? option->paradigm
+				: option->argname ? option->argname : "");
+		description[sizeof(description)-1] = 0;
+
+		/* long/hybrid option prefix (-/--) */
+		prefix = option->flags & ARGV_OPTION_HYBRID_ONLY
+				? " -" : "--";
+
+		/* option string */
+		if (fboth && option->short_name && option->long_name)
+			sprintf(optstr,"%s-%c,%s%s",
+				indent,option->short_name,prefix,option->long_name);
+
+		else if ((fshort || fboth) && option->short_name)
+			sprintf(optstr,"%s-%d",indent,option->short_name);
+
+		else if (flong && option->long_name)
+			sprintf(optstr,"%s%s%s",
+				indent,prefix,option->long_name);
+
+		else if (fboth && option->long_name)
+			sprintf(optstr,"%s   %s%s",
+				indent,prefix,option->long_name);
+
+		else
+			optstr[0] = 0;
+
+		/* right-indented option buffer */
+		if (description[0]) {
+			len = strlen(optstr);
+			sprintf(&optstr[len],"%-*c",(int)(optlen-len),' ');
+		}
+
+		/* single line? */
+		if (optlen + strlen(description) < width) {
+			fprintf(file,"%s%s\n",optstr,description);
+
+		} else {
+			desc = description;
+			cap  = desc + strlen(description);
+
+			while (desc < cap) {
+				mark = (desc + desclen >= cap)
+					? cap : desc + desclen;
+
+				while (*mark && (mark > desc)
+						&& (*mark != ' ')
+						&& (*mark != '|')
+						&& (*mark != '\t')
+						&& (*mark != '\n'))
+					mark--;
+
+				if (mark == desc) {
+					mark = (desc + desclen >= cap)
+						? cap : desc + desclen;
+					cache = *mark;
+					*mark = 0;
+				} else if (*mark == '|') {
+					cache = *mark;
+					*mark = 0;
+				} else {
+					cache = 0;
+					*mark = 0;
+				}
+
+				/* first line? */
+				if (desc == description)
+					fprintf(file,"%s%s\n",optstr,desc);
+				else
+					fprintf(file,"%-*c %s\n",
+						(*desc == '|')
+							? (int)(optlen+1)
+							: (int)optlen,
+						' ',desc);
+
+				if (cache)
+					*mark = cache;
+				else
+					mark++;
+
+				desc = mark;
+			}
+		}
+	}
+
+	if (fcolor)
+		fputs(creset,file);
+}
+
+#endif
+
+#endif
diff --git a/src/internal/nolibc/nt32/ptyc_compiler.s b/src/internal/nolibc/nt32/ptyc_compiler.s
new file mode 100644
index 0000000..6144edf
--- /dev/null
+++ b/src/internal/nolibc/nt32/ptyc_compiler.s
@@ -0,0 +1,20 @@
+###########################################################
+##  ptycon: a pty-console bridge                         ##
+##  Copyright (C) 2016  Z. Gilboa                        ##
+##  Released under GPLv2 and GPLv3; see COPYING.PTYCON.  ##
+###########################################################
+
+# ___chkstk_ms and _pei386_runtime_relocator are not needed by the framework
+# and are provided here in the form of no-op functions in order to satisfy
+# compiler-generated dependencies.
+
+.section .text
+
+.global _pei386_runtime_relocator
+.global ___chkstk_ms
+
+_pei386_runtime_relocatorr:
+	ret
+
+___chkstk_ms:
+	ret
diff --git a/src/internal/nolibc/nt64/ptyc_compiler.s b/src/internal/nolibc/nt64/ptyc_compiler.s
new file mode 100644
index 0000000..6144edf
--- /dev/null
+++ b/src/internal/nolibc/nt64/ptyc_compiler.s
@@ -0,0 +1,20 @@
+###########################################################
+##  ptycon: a pty-console bridge                         ##
+##  Copyright (C) 2016  Z. Gilboa                        ##
+##  Released under GPLv2 and GPLv3; see COPYING.PTYCON.  ##
+###########################################################
+
+# ___chkstk_ms and _pei386_runtime_relocator are not needed by the framework
+# and are provided here in the form of no-op functions in order to satisfy
+# compiler-generated dependencies.
+
+.section .text
+
+.global _pei386_runtime_relocator
+.global ___chkstk_ms
+
+_pei386_runtime_relocatorr:
+	ret
+
+___chkstk_ms:
+	ret
diff --git a/src/internal/nolibc/stdbool.h b/src/internal/nolibc/stdbool.h
new file mode 100644
index 0000000..45fc6f9
--- /dev/null
+++ b/src/internal/nolibc/stdbool.h
@@ -0,0 +1,11 @@
+#ifndef _STDBOOL_H
+#define _STDBOOL_H
+
+#ifndef __cplusplus
+
+#define true	1
+#define false	0
+#define bool	_Bool
+
+#endif
+#endif
diff --git a/src/internal/nolibc/stddef.h b/src/internal/nolibc/stddef.h
new file mode 100644
index 0000000..8288bae
--- /dev/null
+++ b/src/internal/nolibc/stddef.h
@@ -0,0 +1,6 @@
+#ifndef _STDDEF_H
+#define _STDDEF_H
+
+#define offsetof(type, member) ((size_t)( (char *)&(((type *)0)->member) - (char *)0 ))
+
+#endif
diff --git a/src/internal/nolibc/stdint.h b/src/internal/nolibc/stdint.h
new file mode 100644
index 0000000..831d865
--- /dev/null
+++ b/src/internal/nolibc/stdint.h
@@ -0,0 +1,6 @@
+#ifndef _STDINT_H
+#define _STDINT_H
+
+#include <psxtypes/psxtypes.h>
+
+#endif
diff --git a/src/internal/nolibc/stdio.h b/src/internal/nolibc/stdio.h
new file mode 100644
index 0000000..610533e
--- /dev/null
+++ b/src/internal/nolibc/stdio.h
@@ -0,0 +1,8 @@
+#ifndef _STDIO_H
+#define _STDIO_H
+
+#define STDIN_FILENO	0
+#define STDOUT_FILENO	1
+#define STDERR_FILENO	2
+
+#endif
diff --git a/src/internal/nolibc/stdlib.h b/src/internal/nolibc/stdlib.h
new file mode 100644
index 0000000..8a24bec
--- /dev/null
+++ b/src/internal/nolibc/stdlib.h
@@ -0,0 +1,4 @@
+#ifndef _STDLIB_H
+#define _STDLIB_H
+
+#endif
diff --git a/src/internal/nolibc/string.h b/src/internal/nolibc/string.h
new file mode 100644
index 0000000..f8e3b8e
--- /dev/null
+++ b/src/internal/nolibc/string.h
@@ -0,0 +1,4 @@
+#ifndef	_STRING_H
+#define	_STRING_H
+
+#endif
diff --git a/src/internal/nolibc/unistd.h b/src/internal/nolibc/unistd.h
new file mode 100644
index 0000000..2e39dc8
--- /dev/null
+++ b/src/internal/nolibc/unistd.h
@@ -0,0 +1,4 @@
+#ifndef	_UNISTD_H
+#define	_UNISTD_H
+
+#endif
diff --git a/src/internal/ptycon_driver_impl.h b/src/internal/ptycon_driver_impl.h
new file mode 100644
index 0000000..dbc3278
--- /dev/null
+++ b/src/internal/ptycon_driver_impl.h
@@ -0,0 +1,26 @@
+#ifndef PTYCON_DRIVER_IMPL_H
+#define PTYCON_DRIVER_IMPL_H
+
+#include <ntapi/ntapi.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#include <ptycon/ptycon.h>
+#include "argv/argv.h"
+
+extern   const struct argv_option ptyc_default_options[];
+extern   const ntapi_vtbl * ptyc_ntapi;
+
+#define  ntapi ptyc_ntapi
+
+enum app_tags {
+	TAG_HELP,
+	TAG_VERSION,
+};
+
+struct ptyc_driver_ctx_impl {
+	struct ptyc_common_ctx	cctx;
+	struct ptyc_driver_ctx	ctx;
+};
+
+#endif
diff --git a/src/internal/ptycon_init_impl.h b/src/internal/ptycon_init_impl.h
new file mode 100644
index 0000000..c136a4d
--- /dev/null
+++ b/src/internal/ptycon_init_impl.h
@@ -0,0 +1,24 @@
+#ifndef PTYCON_INIT_IMPL_H
+#define PTYCON_INIT_IMPL_H
+
+#include <ntapi/ntapi.h>
+#include <ntapi/nt_atomic.h>
+
+extern const ntapi_vtbl * ptyc_ntapi;
+
+static int ptyc_init(void)
+{
+	int32_t		status;
+	ntapi_vtbl * 	pvtbl;
+
+	if ((status = ntapi_init(&pvtbl)))
+		return status;
+
+	at_locked_cas(
+		(intptr_t *)&ptyc_ntapi,
+		0,(intptr_t)pvtbl);
+
+	return 0;
+}
+
+#endif
diff --git a/src/internal/ptycon_memfn_impl.c b/src/internal/ptycon_memfn_impl.c
new file mode 100644
index 0000000..1aa625a
--- /dev/null
+++ b/src/internal/ptycon_memfn_impl.c
@@ -0,0 +1,94 @@
+/*********************************************************/
+/*  ptycon: a pty-console bridge                         */
+/*  Copyright (C) 2016  Z. Gilboa                        */
+/*  Released under GPLv2 and GPLv3; see COPYING.PTYCON.  */
+/*********************************************************/
+
+#include <stddef.h>
+#include <ntapi/ntapi.h>
+#include "ptycon_memfn_impl.h"
+#include "ptycon_driver_impl.h"
+
+void * ptyc_calloc(size_t n, size_t size)
+{
+	struct ptyc_memory_block block;
+
+	if (!n || (size > (size_t)(-1) / n))
+		return 0;
+
+	size *= n;
+	size += 0xf;
+	size &= ~(size_t)0xf;
+
+	block.addr = 0;
+	block.size = size + sizeof(block);
+
+	if (ntapi->zw_allocate_virtual_memory(
+			NT_CURRENT_PROCESS_HANDLE,
+			&block.addr,
+			0,
+			&block.size,
+			NT_MEM_COMMIT,
+			NT_PAGE_READWRITE))
+		return 0;
+
+	block.used  = size;
+	block.avail = block.size - block.used;
+
+	return (char *)block.addr + offsetof(struct ptyc_memory_block,buffer);
+}
+
+void * ptyc_balloc(
+	struct ptyc_memory_block * cache,
+	struct ptyc_memory_block * block,
+	size_t n, size_t size)
+{
+	char * baddr;
+	void * addr = 0;
+
+	if (!n || (size > (size_t)(-1) / n))
+		return 0;
+
+	if (!cache || !cache->addr)
+		addr = ptyc_calloc(n,size);
+
+	size *= n;
+	size += 0xf;
+	size &= ~(size_t)0xf;
+
+	if (size < block->avail)
+		addr = ptyc_calloc(n,size);
+
+	/* newly allocated block? */
+	if (addr) {
+		baddr  = addr;
+		baddr -= offsetof(struct ptyc_memory_block,buffer);
+
+		ntapi->tt_aligned_block_memcpy(
+			(uintptr_t *)block,
+			(uintptr_t *)baddr,
+			sizeof(*block));
+
+		return addr;
+	}
+
+	/* cache */
+	addr = &block->buffer[block->used / sizeof(size_t)];
+	block->used  += size;
+	block->avail -= size;
+	return addr;
+}
+
+void ptyc_free(void * addr)
+{
+	struct ptyc_memory_block block;
+
+	block.addr = addr;
+	block.size = 0;
+
+	ntapi->zw_free_virtual_memory(
+		NT_CURRENT_PROCESS_HANDLE,
+		&block.addr,
+		&block.size,
+		NT_MEM_RELEASE);
+}
diff --git a/src/internal/ptycon_memfn_impl.h b/src/internal/ptycon_memfn_impl.h
new file mode 100644
index 0000000..9a58752
--- /dev/null
+++ b/src/internal/ptycon_memfn_impl.h
@@ -0,0 +1,22 @@
+#ifndef PTYCON_MEMFN_IMPL_H
+#define PTYCON_MEMFN_IMPL_H
+
+#include <stdint.h>
+
+struct ptyc_memory_block {
+	void *	addr;
+	size_t	size;
+	size_t	used;
+	size_t	avail;
+	size_t	buffer[];
+};
+
+void * ptyc_calloc(size_t n, size_t size);
+void   ptyc_free(void * addr);
+
+void * ptyc_balloc(
+	struct ptyc_memory_block * cache,
+	struct ptyc_memory_block * block,
+	size_t n, size_t size);
+
+#endif
diff --git a/src/internal/ptycon_nolibc_impl.c b/src/internal/ptycon_nolibc_impl.c
new file mode 100644
index 0000000..8a32fd7
--- /dev/null
+++ b/src/internal/ptycon_nolibc_impl.c
@@ -0,0 +1,73 @@
+/*********************************************************/
+/*  ptycon: a pty-console bridge                         */
+/*  Copyright (C) 2016  Z. Gilboa                        */
+/*  Released under GPLv2 and GPLv3; see COPYING.PTYCON.  */
+/*********************************************************/
+
+#include <ntapi/ntapi.h>
+
+extern const ntapi_vtbl * ptyc_ntapi;
+
+void * ptyc_memcpy(void * dst, const void * src, size_t n)
+{
+	return ptyc_ntapi->tt_generic_memcpy(dst,src,n);
+}
+
+void * ptyc_memset(void * ch, int c, size_t n)
+{
+	return ptyc_ntapi->tt_generic_memset(ch,c,n);
+}
+
+char * ptyc_strcpy(char * dst, const char * src)
+{
+	return ptyc_ntapi->tt_generic_memcpy(
+		dst,src,
+		ptyc_ntapi->tt_string_null_offset_multibyte(src));
+}
+
+size_t ptyc_strlen(const char * ch)
+{
+	return ptyc_ntapi->tt_string_null_offset_multibyte(ch);
+}
+
+int ptyc_strcmp(const char * a, const char * b)
+{
+	return ptyc_ntapi->tt_strcmp_multibyte(a,b);
+}
+
+int ptyc_strncmp(const char * a, const char * b, size_t n)
+{
+	return ptyc_ntapi->tt_strncmp_multibyte(a,b,n);
+}
+
+char * ptyc_strchr(const char * ch, int c)
+{
+	for (; *ch; ch++)
+		if (*ch == c)
+			return (char *)ch;
+	return 0;
+}
+
+char * ptyc_strrchr(const char * ch, int c)
+{
+	const char * base;
+
+	base = ch;
+	ch  += ptyc_ntapi->tt_string_null_offset_multibyte(ch);
+
+	for (; ch >= base; ch--)
+		if (*ch == c)
+			return (char *)ch;
+	return 0;
+}
+
+#ifdef PTYC_BUILD
+int __stdcall ptycon_entry_point(void * hinstance, uint32_t reason, void * reserved)
+{
+	(void)hinstance;
+	(void)reason;
+	(void)reserved;
+
+	return 1;
+}
+#endif
diff --git a/src/internal/ptycon_nolibc_impl.h b/src/internal/ptycon_nolibc_impl.h
new file mode 100644
index 0000000..7050c03
--- /dev/null
+++ b/src/internal/ptycon_nolibc_impl.h
@@ -0,0 +1,52 @@
+#ifndef PTYCON_NOLIBC_IMPL_H
+#define PTYCON_NOLIBC_IMPL_H
+
+#define isatty   ptyc_isatty
+#define fileno   ptyc_fileno
+
+#define fputs    ptyc_fputs
+#define fprintf  ptyc_fprintf
+#define sprintf  ptyc_sprintf
+#define snprintf ptyc_snprintf
+
+#define memcpy   ptyc_memcpy
+#define memset   ptyc_memset
+
+#define strcpy   ptyc_strcpy
+#define strlen   ptyc_strlen
+#define strcmp   ptyc_strcmp
+#define strncmp  ptyc_strncmp
+#define strchr   ptyc_strchr
+#define strrchr  ptyc_strrchr
+
+#define calloc	 ptyc_calloc
+#define free	 ptyc_free
+
+#define stdin	 (void *)0
+#define stdout	 (void *)1
+#define stderr	 (void *)2
+
+typedef struct ptyc_file FILE;
+
+int	ptyc_isatty(int fildes);
+int	ptyc_fileno(void * any);
+
+int	ptyc_sprintf(char * str, const char * fmt, ...);
+int	ptyc_snprintf(char * str, size_t n, const char * fmt, ...);
+int	ptyc_fprintf(FILE *__restrict, const char *__restrict, ...);
+int	ptyc_fputs(const char * str, FILE * file);
+
+void *  ptyc_memcpy(void * dst, const void * src, size_t n);
+void *	memset(void * ch, int c, size_t n);
+
+char *	ptyc_strcpy(char * dst, const char * src);
+size_t	ptyc_strlen(const char * ch);
+int	ptyc_strcmp(const char * a, const char * b);
+int	ptyc_strncmp(const char * a, const char * b, size_t n);
+char *	ptyc_strchr(const char * ch, int c);
+char *	ptyc_strrchr(const char * ch, int c);
+
+void *	ptyc_calloc(size_t n, size_t size);
+void	ptyc_free(void *);
+
+#endif
diff --git a/src/internal/ptycon_ntaio_impl.c b/src/internal/ptycon_ntaio_impl.c
new file mode 100644
index 0000000..c990ff7
--- /dev/null
+++ b/src/internal/ptycon_ntaio_impl.c
@@ -0,0 +1,163 @@
+/*********************************************************/
+/*  ptycon: a pty-console bridge                         */
+/*  Copyright (C) 2016  Z. Gilboa                        */
+/*  Released under GPLv2 and GPLv3; see COPYING.PTYCON.  */
+/*********************************************************/
+
+#include <ntapi/ntapi.h>
+
+extern const ntapi_vtbl * ptyc_ntapi;
+
+typedef struct ptyc_file {
+        void *  hany;
+} FILE;
+
+int ptyc_fputs(const char * str, FILE * file)
+{
+	int32_t			status;
+	nt_runtime_data *	rtdata;
+	ntapi_zw_write_file *	iofn;
+	void *			hio;
+	void *			hevent;
+	int			fdtype;
+	size_t			size;
+	size_t			nbytes;
+	nt_iosb			iosb;
+
+	/* rtdata */
+	if (ptyc_ntapi->tt_get_runtime_data(&rtdata,0))
+		return -1;
+
+	/* io type */
+	if (file == (void *)0) {
+		hio    = rtdata->hstdin;
+		fdtype = rtdata->stdin_type;
+
+	} else if (file == (void *)1) {
+		hio    = rtdata->hstdout;
+		fdtype = rtdata->stdout_type;
+
+	} else if (file == (void *)2) {
+		hio    = rtdata->hstderr;
+		fdtype = rtdata->stderr_type;
+	} else {
+		return -1;
+	}
+
+	if (!hio)
+		return -1;
+
+	/* buffer */
+	size   = ptyc_ntapi->tt_string_null_offset_multibyte(str);
+	nbytes = size;
+
+	/* iofn */
+	iofn = (fdtype ==  NT_FILE_TYPE_PTY)
+		? (ntapi_zw_write_file *)ptyc_ntapi->pty_write
+		: ptyc_ntapi->zw_write_file;
+
+	/* hevent */
+	if ((status = ptyc_ntapi->tt_create_private_event(
+			&hevent,
+			NT_NOTIFICATION_EVENT,
+			NT_EVENT_NOT_SIGNALED)))
+		return -1;
+
+	while (nbytes) {
+		/* iowrite */
+		status = iofn(
+			hio,hevent,
+			0,0,&iosb,
+			(void *)str,
+			nbytes,0,0);
+
+		/* wait */
+		if (status == NT_STATUS_PENDING)
+			status = ptyc_ntapi->zw_wait_for_single_object(
+				hevent,0,0);
+
+		/* check */
+		if (status || iosb.status) {
+			ptyc_ntapi->zw_close(hevent);
+			return -1;
+		}
+
+		str    += iosb.info;
+		nbytes -= iosb.info;
+	}
+
+	/* all done */
+	ptyc_ntapi->zw_close(
+		hevent);
+
+	return (int)size;
+}
+
+int ptyc_fprintf(FILE * file, const char * fmt, ...)
+{
+	va_list	ap;
+	char *	str;
+	size_t	buffer[32768/sizeof(size_t)];
+
+	ptyc_ntapi->tt_aligned_block_memset(
+		buffer,0,sizeof(buffer));
+
+	str = (char *)buffer;
+
+	va_start(ap, fmt);
+	ptyc_ntapi->vsnprintf(str, sizeof(buffer), fmt, ap);
+	va_end(ap);
+
+	str[sizeof(buffer)-1] = 0;
+
+	return ptyc_fputs(str,file);
+}
+
+int ptyc_sprintf(char * str, const char * fmt, ...)
+{
+	int     ret;
+	va_list ap;
+
+	va_start(ap, fmt);
+	ret = ptyc_ntapi->vsprintf(str, fmt, ap);
+	va_end(ap);
+
+	return ret;
+}
+
+int ptyc_snprintf(char * str, size_t n, const char * fmt, ...)
+{
+	int     ret;
+	va_list ap;
+
+	va_start(ap, fmt);
+	ret = ptyc_ntapi->vsnprintf(str, n, fmt, ap);
+	va_end(ap);
+
+	return ret;
+}
+
+int ptyc_isatty(int fildes)
+{
+	nt_runtime_data * rtdata;
+
+	if ((ptyc_ntapi->tt_get_runtime_data(&rtdata,0)))
+		return 0;
+
+	if (fildes == 0)
+		return (rtdata->stdin_type == NT_FILE_TYPE_PTY);
+
+	else if (fildes == 1)
+		return (rtdata->stdout_type == NT_FILE_TYPE_PTY);
+
+	else if (fildes == 2)
+		return (rtdata->stderr_type == NT_FILE_TYPE_PTY);
+
+	else
+		return 0;
+}
+
+int ptyc_fileno(void * any)
+{
+	return (int)(intptr_t)any;
+}
diff --git a/src/ptycon.c b/src/ptycon.c
new file mode 100644
index 0000000..dd483b8
--- /dev/null
+++ b/src/ptycon.c
@@ -0,0 +1,169 @@
+/*********************************************************/
+/*  ptycon: a pty-console bridge                         */
+/*  Copyright (C) 2016  Z. Gilboa                        */
+/*  Released under GPLv2 and GPLv3; see COPYING.PTYCON.  */
+/*********************************************************/
+
+#include <pemagine/pemagine.h>
+#include <ntapi/ntapi.h>
+#include <ptycon/ptycon.h>
+#include "ptycon_init_impl.h"
+#include "ptycon_driver_impl.h"
+
+static const nt_tty_affiliation tty_affiliation
+	__attr_section__(".midipix")
+	= NT_TTY_AFFILIATION_DEFAULT;
+
+static void ptycon_exit(int code)
+{
+	/* posix exit code? */
+	if (code <= 0xff)
+		code <<= 8;
+
+	ntapi->zw_terminate_process(
+		NT_CURRENT_PROCESS_HANDLE,
+		code);
+}
+
+static int32_t ptycon_start(int argc, char ** argv, char ** envp)
+{
+	int32_t				status;
+	nt_runtime_data *		rtdata;
+	nt_port_attr			port_attr;
+        nt_pty_client_info		client_info;
+        nt_pty *			hpty;
+	nt_iosb				iosb;
+
+	/* rtdata */
+	if ((status = ntapi->tt_get_runtime_data(&rtdata,0)))
+		return status;
+
+	if (rtdata->argv) {
+		argc = rtdata->argc;
+		argv = rtdata->argv;
+		envp = rtdata->envp;
+	}
+
+	/* no tty session? */
+	if (!rtdata->srv_keys[0])
+		return ptyc_main(argc,argv,envp);
+
+	/* tty */
+	ntapi->tt_aligned_block_memset(
+		&port_attr,0,sizeof(port_attr));
+
+	port_attr.type		= NT_PORT_TYPE_SUBSYSTEM;
+	port_attr.subtype	= NT_PORT_SUBTYPE_DEFAULT;
+
+	port_attr.keys.key[0]	= rtdata->srv_keys[0];
+	port_attr.keys.key[1]	= rtdata->srv_keys[1];
+	port_attr.keys.key[2]	= rtdata->srv_keys[2];
+	port_attr.keys.key[3]	= rtdata->srv_keys[3];
+	port_attr.keys.key[4]	= rtdata->srv_keys[4];
+	port_attr.keys.key[5]	= rtdata->srv_keys[5];
+
+	ntapi->tt_port_guid_from_type(
+		&port_attr.guid,
+		port_attr.type,
+		port_attr.subtype);
+
+	if ((status = ntapi->tty_join_session(
+			&rtdata->hsession,0,
+			&port_attr,
+			NT_TTY_SESSION_PRIMARY)))
+		return status;
+
+	/* pty */
+	client_info.any[0] = rtdata->ptyany[0];
+	client_info.any[1] = rtdata->ptyany[1];
+	client_info.any[2] = rtdata->ptyany[2];
+	client_info.any[3] = rtdata->ptyany[3];
+
+	status = ntapi->pty_inherit(
+		rtdata->hsession,
+		&hpty,
+		&client_info);
+
+	/* ntaio */
+	if (status == NT_STATUS_SUCCESS) {
+		if (rtdata->stdin_type == NT_FILE_TYPE_PTY)
+			rtdata->hstdin = hpty;
+
+		if (rtdata->stdout_type == NT_FILE_TYPE_PTY)
+			rtdata->hstdout = hpty;
+
+		if (rtdata->stderr_type == NT_FILE_TYPE_PTY)
+			rtdata->hstderr = hpty;
+
+		/* ctty identification */
+		client_info.any[0] = 0;
+		client_info.any[1] = 0;
+		client_info.any[2] = 0;
+		client_info.any[3] = 0;
+
+		if ((status = ntapi->pty_set(
+				hpty,&iosb,
+				&client_info,sizeof(client_info),
+				NT_PTY_CLIENT_INFORMATION)))
+			return status;
+	}
+
+	/* ready */
+	if (rtdata->hready)
+		if ((status = ntapi->zw_set_event(rtdata->hready,0)))
+			return status;
+
+	/* main */
+	return ptyc_main(argc,argv,envp);
+}
+
+static int ptycon_daemon_entry_point(void * arg)
+{
+	int32_t		status;
+	int		argc;
+	char **		argv;
+	char **		envp;
+
+	(void)arg;
+	(void)tty_affiliation;
+
+	if ((status = ntapi->tt_get_argv_envp_utf8(
+			&argc,&argv,&envp,
+			0,0,0)))
+		ptycon_exit(status);
+
+	ptycon_exit(ptycon_start(
+		argc,argv,envp));
+
+	return NT_STATUS_INTERNAL_ERROR;
+}
+
+int ptycon_entry_point(void)
+{
+	int32_t			status;
+	nt_thread_params	params;
+
+	if ((status = ptyc_init()))
+		return status;
+
+	ntapi->tt_aligned_block_memset(
+		&params,0,sizeof(params));
+
+	params.hprocess		  = NT_CURRENT_PROCESS_HANDLE;
+	params.start		  = ptycon_daemon_entry_point;
+	params.stack_size_commit  = 128 * 1024;
+	params.stack_size_reserve = 128 * 1024;
+	params.creation_flags	  = NT_CREATE_LOCAL_THREAD;
+
+	if ((status = ntapi->tt_create_thread(&params)))
+		ptycon_exit(status);
+
+	ntapi->zw_close(
+		params.hthread);
+
+	ntapi->zw_terminate_thread(
+		NT_CURRENT_THREAD_HANDLE,
+		NT_STATUS_SUCCESS);
+
+	return NT_STATUS_INTERNAL_ERROR;
+}
diff --git a/src/skin/ptyc_skin_default.c b/src/skin/ptyc_skin_default.c
new file mode 100644
index 0000000..85ce12e
--- /dev/null
+++ b/src/skin/ptyc_skin_default.c
@@ -0,0 +1,12 @@
+#include "ptycon_driver_impl.h"
+#include "argv/argv.h"
+
+const struct argv_option ptyc_default_options[] = {
+	{"version",		'v',TAG_VERSION,ARGV_OPTARG_NONE,0,0,0,
+				"show version information"},
+
+	{"help",		'h',TAG_HELP,ARGV_OPTARG_OPTIONAL,0,"short|long",0,
+				"show usage information [listing %s options only]"},
+
+	{0,0,0,0,0,0,0,0}
+};
diff --git a/sysinfo/compiler/any-compiler.mk b/sysinfo/compiler/any-compiler.mk
new file mode 100644
index 0000000..4c98621
--- /dev/null
+++ b/sysinfo/compiler/any-compiler.mk
@@ -0,0 +1,29 @@
+ifeq ($(CROSS_COMPILE)x,x)
+	CROSS_HOST	=
+	CROSS_HOST_SPEC =
+else
+	CROSS_HOST	=
+	CROSS_HOST_SPEC =
+endif
+
+
+ifeq ($(USER_CC)x,x)
+	CC	= $(NATIVE_CC) $(CROSS_HOST_SPEC)
+else
+	CC	= $(USER_CC) $(CROSS_HOST_SPEC)
+endif
+
+ifeq ($(USER_CPP)x,x)
+	CPP	= $(NATIVE_CC) $(CROSS_HOST_SPEC) -E
+else
+	CPP	= $(USER_CPP) $(CROSS_HOST_SPEC) -E
+endif
+
+ifeq ($(USER_CXX)x,x)
+	CXX	= $(NATIVE_CC) $(CROSS_HOST_SPEC) -std=c++
+else
+	CXX	= $(USER_CXX) $(CROSS_HOST_SPEC) -std=c++
+endif
+
+
+CFLAGS_PIC	= -fPIC
diff --git a/sysinfo/compiler/clang.mk b/sysinfo/compiler/clang.mk
new file mode 100644
index 0000000..77b4b86
--- /dev/null
+++ b/sysinfo/compiler/clang.mk
@@ -0,0 +1,31 @@
+ifeq ($(CROSS_COMPILE)x,x)
+	CROSS_HOST	=
+	CROSS_HOST_SPEC =
+else ifeq ($(CROSS_HOST)x,x)
+	CROSS_HOST	= $(HOST)
+	CROSS_HOST_SPEC = --target=$(HOST)
+else
+	CROSS_HOST_SPEC = --target=$(CROSS_HOST)
+endif
+
+
+ifeq ($(USER_CC)x,x)
+	CC	= $(NATIVE_CC) $(CROSS_HOST_SPEC)
+else
+	CC	= $(USER_CC) $(CROSS_HOST_SPEC)
+endif
+
+ifeq ($(USER_CPP)x,x)
+	CPP	= $(NATIVE_CC) $(CROSS_HOST_SPEC) -E
+else
+	CPP	= $(USER_CPP) $(CROSS_HOST_SPEC) -E
+endif
+
+ifeq ($(USER_CXX)x,x)
+	CXX	= $(NATIVE_CC)++ $(CROSS_HOST_SPEC)
+else
+	CXX	= $(USER_CXX) $(CROSS_HOST_SPEC)
+endif
+
+
+CFLAGS_PIC	= -fPIC
diff --git a/sysinfo/compiler/cparser.mk b/sysinfo/compiler/cparser.mk
new file mode 100644
index 0000000..6c4dc8e
--- /dev/null
+++ b/sysinfo/compiler/cparser.mk
@@ -0,0 +1,31 @@
+ifeq ($(CROSS_COMPILE)x,x)
+	CROSS_HOST	=
+	CROSS_HOST_SPEC =
+else ifeq ($(CROSS_HOST)x,x)
+	CROSS_HOST	= $(HOST)
+	CROSS_HOST_SPEC = --target=$(HOST)
+else
+	CROSS_HOST_SPEC = --target=$(CROSS_HOST)
+endif
+
+
+ifeq ($(USER_CC)x,x)
+	CC	= $(NATIVE_CC) $(CROSS_HOST_SPEC) -Wno-experimental -integrated-cpp
+else
+	CC	= $(USER_CC) $(CROSS_HOST_SPEC) -Wno-experimental -integrated-cpp
+endif
+
+ifeq ($(USER_CPP)x,x)
+	CPP	= $(NATIVE_CC) $(CROSS_HOST_SPEC) -Wno-experimental -integrated-cpp -E
+else
+	CPP	= $(USER_CPP) $(CROSS_HOST_SPEC) -Wno-experimental -integrated-cpp -E
+endif
+
+ifeq ($(USER_CXX)x,x)
+	CXX	= $(NATIVE_CC) $(CROSS_HOST_SPEC) -Wno-experimental -integrated-cpp -std=c++
+else
+	CXX	= $(USER_CXX) $(CROSS_HOST_SPEC) -Wno-experimental -integrated-cpp -std=c++
+endif
+
+
+CFLAGS_PIC	= -fPIC
diff --git a/sysinfo/compiler/gcc.mk b/sysinfo/compiler/gcc.mk
new file mode 100644
index 0000000..d14d8dc
--- /dev/null
+++ b/sysinfo/compiler/gcc.mk
@@ -0,0 +1,24 @@
+ifeq ($(USER_CC)x,x)
+	ifeq ($(CROSS_COMPILE)x,x)
+		CC = $(CROSS_COMPILE)$(NATIVE_CC)
+	else
+		CC = $(CROSS_COMPILE)gcc
+	endif
+else
+	CC	= $(USER_CC)
+endif
+
+ifeq ($(USER_CPP)x,x)
+	CPP	= $(CROSS_COMPILE)cpp
+else
+	CPP	= $(USER_CPP)
+endif
+
+ifeq ($(USER_CXX)x,x)
+	CXX	= $(CROSS_COMPILE)c++
+else
+	CXX	= $(USER_CXX)
+endif
+
+
+CFLAGS_PIC	= -fPIC
diff --git a/sysinfo/host/any-host.mk b/sysinfo/host/any-host.mk
new file mode 100644
index 0000000..acb606a
--- /dev/null
+++ b/sysinfo/host/any-host.mk
@@ -0,0 +1,7 @@
+include $(PROJECT_DIR)/sysinfo/os/any-os.mk
+
+ARCH		=
+HOST_BITS	=
+HOST_UNDERSCORE =
+
+CROSS_HOST	= $(TARGET)
diff --git a/sysinfo/host/host.sh b/sysinfo/host/host.sh
new file mode 100755
index 0000000..b3975ae
--- /dev/null
+++ b/sysinfo/host/host.sh
@@ -0,0 +1,48 @@
+#!/bin/sh
+
+error_msg()
+{
+	echo $@ >&2
+}
+
+host_test()
+{
+	mb_hdrdir=$(pwd)/build
+	mkdir -p $mb_hdrdir || exit 2
+
+	if [ -z "$mb_compiler" ]; then
+                echo "config error: compiler not set."
+		exit 2
+	fi
+
+	$mb_compiler -dM -E - < /dev/null > /dev/null && return 0
+
+	error_msg "config error: invalid compiler."
+	exit 2
+}
+
+# one: args
+for arg ; do
+	case "$arg" in
+		--help)	usage
+			;;
+		--compiler=*)
+			mb_compiler=${arg#*=}
+			;;
+		--cflags=*)
+			mb_cflags=${arg#*=}
+			;;
+		*)
+			error_msg ${arg#}: "unsupported config argument."
+			exit 2
+			;;
+	esac
+done
+
+
+# two: test
+host_test
+
+
+# all done
+exit 0
diff --git a/sysinfo/host/i686-nt32-midipix.mk b/sysinfo/host/i686-nt32-midipix.mk
new file mode 100644
index 0000000..fd4b8f8
--- /dev/null
+++ b/sysinfo/host/i686-nt32-midipix.mk
@@ -0,0 +1,5 @@
+include $(PROJECT_DIR)/sysinfo/os/midipix.mk
+
+ARCH		= nt32
+HOST_BITS	= 32
+HOST_UNDERSCORE = '_'
diff --git a/sysinfo/host/i686-w64-mingw32.mk b/sysinfo/host/i686-w64-mingw32.mk
new file mode 100644
index 0000000..b18e2e3
--- /dev/null
+++ b/sysinfo/host/i686-w64-mingw32.mk
@@ -0,0 +1,5 @@
+include $(PROJECT_DIR)/sysinfo/os/mingw.mk
+
+ARCH		= w32
+HOST_BITS	= 32
+HOST_UNDERSCORE = '_'
diff --git a/sysinfo/host/native.mk b/sysinfo/host/native.mk
new file mode 100644
index 0000000..f0cf720
--- /dev/null
+++ b/sysinfo/host/native.mk
@@ -0,0 +1,45 @@
+include $(PROJECT_DIR)/sysinfo/os/$(NATIVE_OS).mk
+
+OS		= $(NATIVE_OS)
+HOST_BITS	= $(NATIVE_OS_BITS)
+HOST_UNDERSCORE = $(NATIVE_OS_UNDERSCORE)
+
+ifeq ($(OS),linux)
+	ifeq ($(HOST_BITS),32)
+		ARCH = i386
+	else ifeq ($(HOST_BITS),64)
+		ARCH = x86_64
+	endif
+endif
+
+ifeq ($(OS),midipix)
+	ifeq ($(HOST_BITS),32)
+		ARCH = nt32
+	else ifeq ($(HOST_BITS),64)
+		ARCH = nt64
+	endif
+endif
+
+ifeq ($(OS),mingw)
+	ifeq ($(HOST_BITS),32)
+		ARCH = w32
+	else ifeq ($(HOST_BITS),64)
+		ARCH = w64
+	endif
+endif
+
+ifeq ($(OS),bsd)
+	ifeq ($(HOST_BITS),32)
+		ARCH = bsd32
+	else ifeq ($(HOST_BITS),64)
+		ARCH = bsd64
+	endif
+endif
+
+ifeq ($(OS),darwin)
+	ifeq ($(HOST_BITS),32)
+		ARCH = dw32
+	else ifeq ($(HOST_BITS),64)
+		ARCH = dw64
+	endif
+endif
diff --git a/sysinfo/host/x86_64-nt64-midipix.mk b/sysinfo/host/x86_64-nt64-midipix.mk
new file mode 100644
index 0000000..d0e1d52
--- /dev/null
+++ b/sysinfo/host/x86_64-nt64-midipix.mk
@@ -0,0 +1,5 @@
+include $(PROJECT_DIR)/sysinfo/os/midipix.mk
+
+ARCH		= nt64
+HOST_BITS	= 64
+HOST_UNDERSCORE = ''
diff --git a/sysinfo/host/x86_64-w64-mingw32.mk b/sysinfo/host/x86_64-w64-mingw32.mk
new file mode 100644
index 0000000..a86f9b0
--- /dev/null
+++ b/sysinfo/host/x86_64-w64-mingw32.mk
@@ -0,0 +1,5 @@
+include $(PROJECT_DIR)/sysinfo/os/mingw.mk
+
+ARCH		= w64
+HOST_BITS	= 64
+HOST_UNDERSCORE = ''
diff --git a/sysinfo/os/any-os.mk b/sysinfo/os/any-os.mk
new file mode 100644
index 0000000..cf8ec00
--- /dev/null
+++ b/sysinfo/os/any-os.mk
@@ -0,0 +1,12 @@
+OS		= any-os
+OS_APP_PREFIX	=
+OS_APP_SUFFIX	=
+OS_LIB_PREFIX	= lib
+OS_LIB_SUFFIX	= .so
+OS_IMPLIB_EXT	= .invalid
+OS_LIBDEF_EXT	= .invalid
+OS_ARCHIVE_EXT	= .a
+OS_SONAME	= symlink
+OS_BINFMT	= ELF
+
+.PHONY:		$(IMPLIB_DEF) $(IMPLIB_VER) $(IMPLIB_SONAME) $(IMPLIB_SOLINK)
diff --git a/sysinfo/os/midipix.mk b/sysinfo/os/midipix.mk
new file mode 100644
index 0000000..31ba374
--- /dev/null
+++ b/sysinfo/os/midipix.mk
@@ -0,0 +1,10 @@
+OS		= midipix
+OS_APP_PREFIX	=
+OS_APP_SUFFIX	=
+OS_LIB_PREFIX	= lib
+OS_LIB_SUFFIX	= .so
+OS_IMPLIB_EXT	= .lib.a
+OS_LIBDEF_EXT	= .so.def
+OS_ARCHIVE_EXT	= .a
+OS_SONAME	= copy
+OS_BINFMT	= PE
diff --git a/sysinfo/os/mingw.mk b/sysinfo/os/mingw.mk
new file mode 100644
index 0000000..6ade8d5
--- /dev/null
+++ b/sysinfo/os/mingw.mk
@@ -0,0 +1,12 @@
+OS		= mingw
+OS_APP_PREFIX	=
+OS_APP_SUFFIX	= .exe
+OS_LIB_PREFIX	= lib
+OS_LIB_SUFFIX	= .dll
+OS_IMPLIB_EXT	= .dll.a
+OS_LIBDEF_EXT	= .def
+OS_ARCHIVE_EXT	= .a
+OS_SONAME	= copy
+OS_BINFMT	= PE
+
+CFLAGS_PIC	=
diff --git a/sysinfo/os/pe.mk b/sysinfo/os/pe.mk
new file mode 100644
index 0000000..ab7b79f
--- /dev/null
+++ b/sysinfo/os/pe.mk
@@ -0,0 +1,73 @@
+LDFLAGS_IMPLIB	+= -Wl,--output-def
+LDFLAGS_IMPLIB	+= -Wl,$(IMPLIB_DEF)
+LDFLAGS_SHARED	+= $(LDFLAGS_IMPLIB)
+
+LDFLAGS_SHARED	+= -Wl,-soname
+LDFLAGS_SHARED	+= -Wl,$(DSO_SONAME)
+
+PE_SUBSYSTEM	?= windows
+LDFLAGS_COMMON	+= -Wl,--subsystem=$(PE_SUBSYSTEM)
+
+implib:			implib-ver package-implib-soname package-implib-solink
+
+implib-ver:		shared-lib $(IMPLIB_VER)
+
+implib-soname:		shared-lib $(IMPLIB_SONAME)
+
+implib-solink:		shared-lib $(IMPLIB_SOLINK)
+
+$(IMPLIB_DEF):		shared-lib
+
+$(IMPLIB_VER):		$(IMPLIB_DEF)
+			$(DLLTOOL) -l $(IMPLIB_VER) -d $(IMPLIB_DEF) -D $(DSO_VER)
+
+install-implib:		install-implib-ver \
+			package-install-implib-soname \
+			package-install-implib-solink
+
+install-implib-ver:	implib-ver
+			mkdir -p $(DESTDIR)$(LIBDIR)
+			cp $(IMPLIB_VER) $(DESTDIR)$(LIBDIR)
+
+clean-implib:
+			rm -f $(SHARED_LIB)
+			rm -f $(IMPLIB_DEF)
+			rm -f $(IMPLIB_VER)
+			rm -f $(IMPLIB_SONAME)
+			rm -f $(IMPLIB_SOLINK)
+
+
+ifeq ($(AVOID_VERSION),yes)
+
+package-implib-soname:
+package-implib-solink:
+package-install-implib-soname:
+package-install-implib-solink:
+
+else
+
+package-implib-soname:		implib-soname
+package-implib-solink:		implib-solink
+package-install-implib-soname:	install-implib-soname
+package-install-implib-solink:	install-implib-solink
+
+
+$(IMPLIB_SONAME):	$(IMPLIB_DEF)
+			$(DLLTOOL) -l $(IMPLIB_SONAME) -d $(IMPLIB_DEF) -D $(DSO_SONAME)
+
+$(IMPLIB_SOLINK):	$(IMPLIB_SONAME)
+			rm -f $(IMPLIB_SOLINK).tmp
+			ln -s $(IMP_SONAME) $(IMPLIB_SOLINK).tmp
+			mv $(IMPLIB_SOLINK).tmp $(IMPLIB_SOLINK)
+
+install-implib-soname:	implib-soname
+			mkdir -p $(DESTDIR)$(LIBDIR)
+			cp $(IMPLIB_SONAME) $(DESTDIR)$(LIBDIR)
+
+install-implib-solink:	implib-soname
+			mkdir -p $(DESTDIR)$(LIBDIR)
+			rm -f $@.tmp
+			ln -s $(IMP_SONAME) $@.tmp
+			mv $@.tmp $(DESTDIR)$(LIBDIR)/$(IMP_SOLINK)
+
+endif
diff --git a/sysinfo/toolchain/binutils.mk b/sysinfo/toolchain/binutils.mk
new file mode 100644
index 0000000..3232915
--- /dev/null
+++ b/sysinfo/toolchain/binutils.mk
@@ -0,0 +1,18 @@
+AS		= $(CROSS_COMPILE)as
+AR		= $(CROSS_COMPILE)ar
+LD		= $(CROSS_COMPILE)ld
+NM		= $(CROSS_COMPILE)nm
+OBJDUMP		= $(CROSS_COMPILE)objdump
+RANLIB		= $(CROSS_COMPILE)ranlib
+SIZE		= $(CROSS_COMPILE)size
+STRIP		= $(CROSS_COMPILE)strip
+STRINGS		= $(CROSS_COMPILE)strings
+
+
+ADDR2LINE	= $(CROSS_COMPILE)addr2line
+COV		= $(CROSS_COMPILE)gcov
+CXXFILT		= $(CROSS_COMPILE)c++filt
+ELFEDIT		= $(CROSS_COMPILE)elfedit
+OBJCOPY		= $(CROSS_COMPILE)objcopy
+READELF		= $(CROSS_COMPILE)readelf
+DLLTOOL		= $(CROSS_COMPILE)dlltool
diff --git a/sysinfo/toolchain/llvm.mk b/sysinfo/toolchain/llvm.mk
new file mode 100644
index 0000000..65b5396
--- /dev/null
+++ b/sysinfo/toolchain/llvm.mk
@@ -0,0 +1,18 @@
+AS		= llvm-mc -filetype=obj
+AR		= llvm-ar
+LD		= lld
+NM		= llvm-nm
+OBJDUMP		= llvm-objdump
+RANLIB		= llvm-ranlib
+SIZE		= llvm-size
+STRIP		= $(CROSS_COMPILE)strip
+STRINGS		= $(CROSS_COMPILE)strings
+
+
+ADDR2LINE	= $(CROSS_COMPILE)addr2line
+COV		= $(CROSS_COMPILE)gcov
+CXXFILT		= $(CROSS_COMPILE)c++filt
+ELFEDIT		= $(CROSS_COMPILE)elfedit
+OBJCOPY		= $(CROSS_COMPILE)objcopy
+READELF		= $(CROSS_COMPILE)readelf
+DLLTOOL		= $(CROSS_COMPILE)dlltool
diff --git a/sysinfo/version.sh b/sysinfo/version.sh
new file mode 100755
index 0000000..8157765
--- /dev/null
+++ b/sysinfo/version.sh
@@ -0,0 +1,61 @@
+#!/bin/sh
+
+usage()
+{
+cat << EOF >&2
+
+Usage:
+  -h            show this HELP message
+  -s  SRCDIR    set source directory
+  -o  OUTPUT    set output header
+  -p  PREFIX    set macro prefix
+
+EOF
+exit 1
+}
+
+
+# one
+workdir=$(pwd)
+srcdir=
+output=
+prefix=
+
+
+while getopts "hs:o:p:" opt; do
+	case $opt in
+	h)
+  		usage
+  		;;
+	s)
+    		srcdir="$OPTARG"
+    		;;
+	o)
+    		output="$OPTARG"
+    		;;
+	p)
+    		prefix="$OPTARG"
+    		;;
+	\?)
+    		printf "Invalid option: -%s" "$OPTARG" >&2
+    		usage
+    		;;
+	esac
+done
+
+
+# two
+if [ -z "$srcdir" ] || [ -z "$output" ] || [ -z "$prefix" ]; then
+	usage
+fi
+
+cd "$srcdir" || exit 2
+
+gitver=`git rev-parse --verify HEAD 2>/dev/null` || gitver="unknown"
+macro=`echo "$prefix"_GIT_VERSION | tr '[:lower:]' '[:upper:]'`
+
+cd "$workdir" || exit 2
+printf "#define $macro\t\"$gitver\"\n" > "$output"
+
+# all done
+exit 0