==========
gdb.config:
==========
#!/bin/sh

	CFLAGS="-g3 -O0"                                                      \
	CXXFLAGS="-g3 -O0"                                                    \
	CFLAGS_FOR_TARGET="-g3 -O0 --sysroot=$HOME/midipix/nt64/debug/native" \
	CXX_FOR_TARGET="-g3 -O0 --sysroot=$HOME/midipix/nt64/debug/native"    \
	LDFLAGS_FOR_TARGET="--sysroot=$HOME/midipix/nt64/debug/native"        \
../gdb-7.12/configure                 \
	--with-system-zlib            \
	--with-system-libiberty       \
	--with-system-readline        \
	--host=x86_64-nt64-midipix    \
	--target=x86_64-nt64-midipix  \
	--build=$(cc -dumpmachine)

========
gdb.make:
========
#!/bin/sh

make LIBTOOL=rdlibtool MAKE="make LIBTOOL=rdlibtool" -j8        \
	SYSROOT_FLAGS=--sysroot=$HOME/midipix/nt64/debug/native


===========
gdb.install:
===========
#!/bin/sh

make LIBTOOL=rdlibtool MAKE="make LIBTOOL=rdlibtool" -j8        \
	SYSROOT_FLAGS=--sysroot=$HOME/midipix/nt64/debug/native \
	DESTDIR=destdir install

diff -ru --new-file a/bfd/config.bfd b/bfd/config.bfd
--- a/bfd/config.bfd	2016-08-01 15:50:20.000000000 +0000
+++ b/bfd/config.bfd	2019-06-03 23:32:57.633401252 +0000
@@ -729,7 +729,7 @@
     targ_archs="$targ_archs bfd_arm_arch"
     want64=true
     ;;
-  x86_64-*-mingw* | x86_64-*-pe | x86_64-*-pep | x86_64-*-cygwin)
+  x86_64-*-mingw* | x86_64-*-pe | x86_64-*-pep | x86_64-*-cygwin | x86_64-*-midipix)
     targ_defvec=x86_64_pe_vec
     targ_selvecs="x86_64_pe_vec x86_64_pei_vec x86_64_pe_be_vec x86_64_elf64_vec l1om_elf64_vec k1om_elf64_vec i386_pe_vec i386_pei_vec i386_elf32_vec iamcu_elf32_vec"
     want64=true
@@ -782,7 +782,7 @@
     targ_defvec=i386_elf32_vec
     targ_selvecs="iamcu_elf32_vec i386_coff_vec"
     ;;
-  i[3-7]86-*-mingw32* | i[3-7]86-*-cygwin* | i[3-7]86-*-winnt | i[3-7]86-*-pe)
+  i[3-7]86-*-mingw32* | i[3-7]86-*-cygwin* | i[3-7]86-*-winnt | i[3-7]86-*-pe | i[3-7]86-*-midipix)
     targ_defvec=i386_pe_vec
     targ_selvecs="i386_pe_vec i386_pei_vec i386_elf32_vec iamcu_elf32_vec"
     targ_underscore=yes
diff -ru --new-file a/bfd/Makefile.in b/bfd/Makefile.in
--- a/bfd/Makefile.in	2016-10-07 17:09:21.000000000 +0000
+++ b/bfd/Makefile.in	2019-06-03 23:32:57.637401253 +0000
@@ -385,8 +385,8 @@
 # This is where we get zlib from.  zlibdir is -L../zlib and zlibinc is
 # -I../zlib, unless we were configured with --with-system-zlib, in which
 # case both are empty.
-ZLIB = @zlibdir@ -lz
-ZLIBINC = @zlibinc@
+ZLIB = @zlibdir@ -lz $(SYSROOT_FLAGS)
+ZLIBINC = @zlibinc@  $(SYSROOT_FLAGS)
 AM_CFLAGS = $(WARN_CFLAGS) $(ZLIBINC)
 AM_CPPFLAGS = -DBINDIR='"$(bindir)"'
 @PLUGINS_TRUE@LIBDL = @lt_cv_dlopen_libs@
diff -ru --new-file a/config.guess b/config.guess
--- a/config.guess	2016-08-01 15:50:20.000000000 +0000
+++ b/config.guess	2019-06-03 23:32:57.637401253 +0000
@@ -4,6 +4,9 @@
 
 timestamp='2016-05-27'
 
+echo x86_64-nt64-midipix
+exit
+
 # This file 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 3 of the License, or
diff -ru --new-file a/config.sub b/config.sub
--- a/config.sub	2016-08-01 15:50:20.000000000 +0000
+++ b/config.sub	2019-06-03 23:32:57.637401253 +0000
@@ -1389,7 +1389,7 @@
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
 	      | -chorusos* | -chorusrdb* | -cegcc* \
 	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
-	      | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
+	      | -midipix* | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
 	      | -linux-newlib* | -linux-musl* | -linux-uclibc* \
 	      | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \
 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
diff -ru --new-file a/gdb/config/i386/midipix64.mh b/gdb/config/i386/midipix64.mh
--- a/gdb/config/i386/midipix64.mh	1970-01-01 00:00:00.000000000 +0000
+++ b/gdb/config/i386/midipix64.mh	2019-06-03 23:33:23.657405443 +0000
@@ -0,0 +1 @@
+
diff -ru --new-file a/gdb/config/i386/midipix.mh b/gdb/config/i386/midipix.mh
--- a/gdb/config/i386/midipix.mh	1970-01-01 00:00:00.000000000 +0000
+++ b/gdb/config/i386/midipix.mh	2019-06-03 23:33:15.317404098 +0000
@@ -0,0 +1 @@
+
diff -ru --new-file a/gdb/configure.host b/gdb/configure.host
--- a/gdb/configure.host	2016-08-01 15:50:20.000000000 +0000
+++ b/gdb/configure.host	2019-06-03 23:32:57.637401253 +0000
@@ -109,6 +109,7 @@
 			;;
 i[34567]86-*-msdosdjgpp*) gdb_host=go32 ;;
 i[34567]86-*-linux*)	gdb_host=linux ;;
+i[34567]86-*-midipix*)	gdb_host=midipix ;;
 i[34567]86-*-gnu*)	gdb_host=i386gnu ;;
 i[3456]86-*-nto*) 	gdb_host=nto ;;
 i[34567]86-*-openbsd*)	gdb_host=obsd ;;
@@ -174,6 +175,7 @@
 vax-*-openbsd*)		gdb_host=obsd ;;
 
 x86_64-*-linux*)	gdb_host=linux64 ;;
+x86_64-*-midipix*)	gdb_host=midipix64 ;;
 x86_64-*-freebsd* | x86_64-*-kfreebsd*-gnu)
 			gdb_host=fbsd64 ;;
 x86_64-*-netbsd* | x86_64-*-knetbsd*-gnu)
diff -ru --new-file a/gdb/configure.tgt b/gdb/configure.tgt
--- a/gdb/configure.tgt	2016-10-07 17:09:21.000000000 +0000
+++ b/gdb/configure.tgt	2019-06-04 14:11:22.091870500 +0000
@@ -229,6 +229,12 @@
 	fi
 	build_gdbserver=yes
 	;;
+i[34567]86-*-midipix*)
+	# Target: Intel 386 running win32
+	gdb_target_obs="i386-tdep.o i387-tdep.o \
+			i386-winnt-tdep.o windows-tdep.o"
+	build_gdbserver=no
+	;;
 i[34567]86-*-gnu*)
 	# Target: Intel 386 running the GNU Hurd
 	gdb_target_obs="i386-tdep.o i387-tdep.o i386gnu-tdep.o solib-svr4.o"
@@ -678,6 +684,13 @@
                         windows-tdep.o"
 	build_gdbserver=yes
         ;;
+x86_64-*-midipix)
+        # Target: Midipix
+	gdb_target_obs="amd64-tdep.o amd64-winnt-tdep.o \
+                        i386-tdep.o i387-tdep.o \
+                        windows-tdep.o i386-winnt-tdep.o"
+	build_gdbserver=no
+        ;;
 x86_64-*-netbsd* | x86_64-*-knetbsd*-gnu)
 	# Target: NetBSD/amd64
 	gdb_target_obs="amd64-tdep.o amd64nbsd-tdep.o i386-tdep.o i387-tdep.o \
@@ -718,6 +731,7 @@
 *-*-mingw32ce*)	gdb_osabi=GDB_OSABI_WINCE ;;
 *-*-mingw* | *-*-cygwin*)
 		gdb_osabi=GDB_OSABI_CYGWIN ;;
+*-*-midipix*)   gdb_osabi=GDB_OSABI_WINNT ;;
 *-*-dicos*)	gdb_osabi=GDB_OSABI_DICOS ;;
 *-*-symbianelf*)
 		gdb_osabi=GDB_OSABI_SYMBIAN ;;
diff -ru --new-file a/gdb/defs.h b/gdb/defs.h
--- a/gdb/defs.h	2016-10-07 17:09:21.000000000 +0000
+++ b/gdb/defs.h	2019-06-03 23:32:57.637401253 +0000
@@ -602,6 +602,7 @@
   GDB_OSABI_NETBSD_ELF,
   GDB_OSABI_OPENBSD_ELF,
   GDB_OSABI_WINCE,
+  GDB_OSABI_WINNT,
   GDB_OSABI_GO32,
   GDB_OSABI_IRIX,
   GDB_OSABI_HPUX_ELF,
diff -ru --new-file a/gdb/doc/Makefile.in b/gdb/doc/Makefile.in
--- a/gdb/doc/Makefile.in	2016-08-01 15:50:20.000000000 +0000
+++ b/gdb/doc/Makefile.in	2019-06-03 23:32:57.637401253 +0000
@@ -74,8 +74,8 @@
 
 # Where is the source dir for the READLINE library doc?  
 # Traditionally readline is in .. or .
-READLINE_DIR = ${gdbdir}/../readline/doc
-READLINE_TEXI_INCFLAG = @READLINE_TEXI_INCFLAG@
+READLINE_DIR          = # ${gdbdir}/../readline/doc
+READLINE_TEXI_INCFLAG = # @READLINE_TEXI_INCFLAG@
 
 # The GDB/MI docs come from a sibling directory ../mi
 GDBMI_DIR = ${gdbdir}/mi
@@ -673,6 +673,10 @@
 maintainer-clean realclean: distclean
 	rm -f GDBvn.texi *.info* *.dvi *.ps *.html *.pdf $(MANS)
 
+ifeq (0,0)
+install:
+else
 install: install-info install-man
+endif
 
 uninstall: uninstall-info uninstall-man
diff -ru --new-file a/gdb/Makefile.in b/gdb/Makefile.in
--- a/gdb/Makefile.in	2016-10-07 17:09:21.000000000 +0000
+++ b/gdb/Makefile.in	2019-06-03 23:32:57.637401253 +0000
@@ -150,7 +150,7 @@
 # This is where we get zlib from.  zlibdir is -L../zlib and zlibinc is
 # -I../zlib, unless we were configured with --with-system-zlib, in which
 # case both are empty.
-ZLIB = @zlibdir@ -lz
+ZLIB = @zlibdir@ -lz $(SYSROOT_FLAGS)
 ZLIBINC = @zlibinc@
 
 # Where is the decnumber library?  Typically in ../libdecnumber.
@@ -162,9 +162,9 @@
 # Where is the READLINE library?  Typically in ../readline.
 READLINE_DIR = ../readline
 READLINE_SRC = $(srcdir)/$(READLINE_DIR)
-READLINE = @READLINE@
-READLINE_DEPS = @READLINE_DEPS@
-READLINE_CFLAGS = @READLINE_CFLAGS@
+READLINE = -lreadline
+READLINE_DEPS =
+READLINE_CFLAGS = $(SYSROOT_FLAGS)
 
 # Where is expat?  This will be empty if expat was not available.
 LIBEXPAT = @LIBEXPAT@
@@ -468,12 +468,12 @@
 # disassemblers?
 OPCODES_DIR = ../opcodes
 OPCODES_SRC = $(srcdir)/$(OPCODES_DIR)
-OPCODES = $(OPCODES_DIR)/libopcodes.a
+OPCODES = -lopcodes
 # Where are the other opcode tables which only have header file
 # versions?
 OP_INCLUDE = $(INCLUDE_DIR)/opcode
 # Some source files like to use #include "opcodes/file.h"
-OPCODES_CFLAGS = -I$(OP_INCLUDE) -I$(OPCODES_SRC)/..
+OPCODES_CFLAGS = -I$(OP_INCLUDE) -I$(OPCODES_SRC)/.. $(SYSROOT_FLAGS)
 
 # The simulator is usually nonexistent; targets that include one
 # should set this to list all the .o or .a files to be linked in.
@@ -599,7 +599,7 @@
 	$(LIBEXPAT) $(LIBLZMA) $(LIBBABELTRACE) $(LIBIPT) \
 	$(LIBIBERTY) $(WIN32LIBS) $(LIBGNU) $(LIBICONV)
 CDEPS = $(XM_CDEPS) $(NAT_CDEPS) $(SIM) $(BFD) $(READLINE_DEPS) \
-	$(OPCODES) $(INTL_DEPS) $(LIBIBERTY) $(CONFIG_DEPS) $(LIBGNU)
+	$(INTL_DEPS) $(LIBIBERTY) $(CONFIG_DEPS) $(LIBGNU)
 
 ADD_FILES = $(XM_ADD_FILES) $(TM_ADD_FILES) $(NAT_ADD_FILES)
 ADD_DEPS = $(XM_ADD_FILES) $(TM_ADD_FILES) $(NAT_ADD_FILES)
diff -ru --new-file a/gdb/amd64-winnt-tdep.c b/gdb/amd64-winnt-tdep.c
--- a/gdb/amd64-winnt-tdep.c	1970-01-01 00:00:00.000000000 +0000
+++ b/gdb/amd64-winnt-tdep.c	2019-06-04 16:22:12.929814200 +0000
@@ -0,0 +1,47 @@
+#include "defs.h"
+#include "osabi.h"
+#include "frame-unwind.h"
+#include "windows-tdep.h"
+#include "amd64-windows-tdep.c"
+
+#define amd64_winnt_push_dummy_call		amd64_windows_push_dummy_call
+#define amd64_winnt_return_value		amd64_windows_return_value
+#define amd64_winnt_skip_trampoline_code	amd64_windows_skip_trampoline_code
+
+#define amd64_winnt_skip_prologue               amd64_windows_skip_prologue
+#define amd64_winnt_skip_main_prologue		amd64_skip_main_prologue
+
+static void
+amd64_winnt_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+	/* abi */
+	amd64_init_abi                    (info, gdbarch);
+	windows_init_abi                  (info, gdbarch);
+
+	/* out-of-band function calls */
+	set_gdbarch_push_dummy_call       (gdbarch, amd64_winnt_push_dummy_call);
+	set_gdbarch_return_value          (gdbarch, amd64_winnt_return_value);
+	set_gdbarch_skip_trampoline_code  (gdbarch, amd64_winnt_skip_trampoline_code);
+
+	/* skip prologue methods */
+	set_gdbarch_skip_prologue         (gdbarch, amd64_windows_skip_prologue);
+	set_gdbarch_skip_main_prologue    (gdbarch, amd64_skip_main_prologue);
+
+	/* todo: SEH unwinder */
+	frame_unwind_append_unwinder      (gdbarch, 0);
+
+	/* todo: inferior-specific, dynamically detected size of long */
+	set_gdbarch_long_bit              (gdbarch, 64);
+}
+
+extern initialize_file_ftype _initialize_amd64_winnt_tdep;
+
+void
+_initialize_amd64_winnt_tdep (void)
+{
+	gdbarch_register_osabi(
+		bfd_arch_i386,
+		bfd_mach_x86_64,
+		GDB_OSABI_WINNT,
+		amd64_winnt_init_abi);
+}
diff -ru --new-file a/gdb/i386-winnt-tdep.c b/gdb/i386-winnt-tdep.c
--- a/gdb/i386-winnt-tdep.c	1970-01-01 00:00:00.000000000 +0000
+++ b/gdb/i386-winnt-tdep.c	2019-06-04 14:43:15.890632100 +0000
@@ -0,0 +1,37 @@
+#include "defs.h"
+#include "osabi.h"
+#include "frame-unwind.h"
+#include "windows-tdep.h"
+
+static void
+i386_winnt_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+	/* abi */
+	windows_init_abi                 (info, gdbarch);
+
+	/* out-of-band function calls */
+	set_gdbarch_push_dummy_call      (gdbarch, 0);
+	set_gdbarch_return_value         (gdbarch, 0);
+
+	/* progloue/trampoline methods */
+	set_gdbarch_skip_main_prologue   (gdbarch, 0);
+	set_gdbarch_skip_trampoline_code (gdbarch, 0);
+
+	/* auto wide charset hack */
+	set_gdbarch_auto_wide_charset    (gdbarch, 0);
+
+	/* unwainder */
+	frame_unwind_append_unwinder     (gdbarch, 0);
+}
+
+extern initialize_file_ftype _initialize_i386_winnt_tdep;
+
+void
+_initialize_i386_winnt_tdep (void)
+{
+	gdbarch_register_osabi(
+		bfd_arch_i386,
+		0,
+		GDB_OSABI_WINNT,
+		i386_winnt_init_abi);
+}
diff -ru --new-file a/gdb/osabi.c b/gdb/osabi.c
--- a/gdb/osabi.c	2016-08-01 15:50:20.000000000 +0000
+++ b/gdb/osabi.c	2019-06-04 00:54:53.410635600 +0000
@@ -70,6 +70,7 @@
   { "NetBSD/ELF", NULL },
   { "OpenBSD/ELF", NULL },
   { "WindowsCE", NULL },
+  { "WINNT", "(midipix)" },
   { "DJGPP", NULL },
   { "Irix", NULL },
   { "HP-UX/ELF", NULL },
diff -ru --new-file a/gdb/stub-termcap.c b/gdb/stub-termcap.c
--- a/gdb/stub-termcap.c	2016-10-07 17:09:21.000000000 +0000
+++ b/gdb/stub-termcap.c	2019-06-03 23:32:57.637401253 +0000
@@ -50,11 +50,13 @@
    weak (later versions, e.g., 4.8, do support it).  Given this stub
    file originally was Windows only, and we only needed this when we
    made it work on other hosts, it should be OK.  */
+#if 0
 #ifndef __MINGW32__
 char PC __attribute__((weak));
 char *BC __attribute__((weak));
 char *UP __attribute__((weak));
 #endif
+#endif
 
 /* Each of the files below is a minimal implementation of the standard
    termcap function with the same name, suitable for use in a Windows