From f8089b2b4ab3b13077cf2e0e1328622ddc002bb2 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Fri, 14 Dec 2018 14:03:13 -0500
Subject: project: imported the custom config bits from sbpython2.

---
 config.project               |   2 +-
 project/config/cfgdefs.sh    | 105 +++++++++++++++++++++++++++++++++++++++++++
 project/config/cfgdefs.usage |   0
 project/config/cfghost.sh    |  57 +++++++++++++++++++++++
 4 files changed, 163 insertions(+), 1 deletion(-)
 create mode 100644 project/config/cfgdefs.sh
 create mode 100644 project/config/cfgdefs.usage
 create mode 100644 project/config/cfghost.sh

diff --git a/config.project b/config.project
index e38f4a9..694f201 100644
--- a/config.project
+++ b/config.project
@@ -71,5 +71,5 @@ mb_disable_frontend=yes
 mb_disable_static=yes
 mb_disable_shared=yes
 
-mb_use_custom_cfgdefs=no
+mb_use_custom_cfgdefs=yes
 mb_use_custom_usrdefs=no
diff --git a/project/config/cfgdefs.sh b/project/config/cfgdefs.sh
new file mode 100644
index 0000000..3b6a806
--- /dev/null
+++ b/project/config/cfgdefs.sh
@@ -0,0 +1,105 @@
+# in projects where [ $mb_use_custom_cfgdefs = yes ],
+# cfgdefs.sh is invoked from within ./configure via
+# . $mb_project_dir/project/cfgdefs.sh
+
+# a successful return from cfgdefs.sh will be followed
+# by a second invocation of the config_copy() function,
+# reflecting any changes to common config variables
+# made by cfgdefs.sh.
+
+# finally, cfgdefs.sh may update the contents of the
+# config-time generated cfgdefs.mk.
+
+
+# cfgdefs helper functions
+. "$mb_project_dir/project/config/cfghost.sh"
+
+
+# sofort's config test framework
+. "$mb_project_dir/sofort/cfgtest.sh"
+
+
+for arg ; do
+	case "$arg" in
+		*)
+			error_msg ${arg#}: "unsupported config argument."
+			exit 2
+	esac
+done
+
+
+cfgdefs_set_cfghost_flavors()
+{
+	cfghost_set_target_cfghost
+	cfghost_set_native_cfghost
+}
+
+
+cfgdefs_perform_target_tests()
+{
+	# init
+	cfgtest_target_section
+
+	# headers
+	cfgtest_header_absence 'stropts.h'
+
+	# openssl
+	mb_cfgtest_headers='openssl/x509.h'
+
+	cfgtest_interface_presence 'X509_NAME_ENTRY_set' \
+		&& cfgtest_cflags_append '-DOPENSSL_VERSION_1_1'
+
+	# ncurses: python refers to members of typedef struct _win_st WINDOW
+	cfgtest_cflags_append '-DNCURSES_INTERNALS'
+
+	# ncurses libs
+	mb_ncurses_libs='-lpanelw -lncursesw'
+	mb_ncurses_tinfo='-ltinfo'
+
+	cfgtest_library_presence $mb_ncurses_tinfo \
+		&& mb_ncurses_libs="$mb_ncurses_libs $mb_ncurses_tinfo"
+
+	mb_cfgtest_makevar='LDFLAGS_NCURSES_LIBS'
+	cfgtest_makevar_append $mb_ncurses_libs
+
+	# pretty cfgdefs.mk
+	cfgtest_newline
+}
+
+
+cfgdefs_perform_native_tests()
+{
+	# init
+	cfgtest_native_section
+
+	# headers
+	cfgtest_header_absence 'stropts.h'
+
+	# ncurses: python refers to members of typedef struct _win_st WINDOW
+	cfgtest_cflags_append '-DNCURSES_INTERNALS'
+
+	# ncurses libs
+	mb_ncurses_libs='-lpanelw -lncursesw'
+	mb_ncurses_tinfo='-ltinfo'
+
+	cfgtest_library_presence $mb_ncurses_tinfo \
+		&& mb_ncurses_libs="$mb_ncurses_libs $mb_ncurses_tinfo"
+
+	cfgtest_ldflags_append $mb_ncurses_libs
+
+	# pretty cfgdefs.mk
+	cfgtest_newline
+}
+
+
+# cfghost
+cfgdefs_set_cfghost_flavors
+
+# target-specific tests
+cfgdefs_perform_target_tests
+
+# native system tests
+cfgdefs_perform_native_tests
+
+# all done
+return 0
diff --git a/project/config/cfgdefs.usage b/project/config/cfgdefs.usage
new file mode 100644
index 0000000..e69de29
diff --git a/project/config/cfghost.sh b/project/config/cfghost.sh
new file mode 100644
index 0000000..8e9561e
--- /dev/null
+++ b/project/config/cfghost.sh
@@ -0,0 +1,57 @@
+# cfghost.sh: map the target or native hosts, as reported by
+# the -dumpmachine mechanism of their respective compilers,
+# to project-specific hosts.
+
+# internal variables of interest:
+# mb_internal_cchost:  the host reported by -dumpmachine
+# mb_internal_cfghost: the unified, project-specific host name
+# mb_internal_cfgtype: the type of host being test (target/native)
+
+cfghost_internal_test()
+{
+	if [ -z "$mb_internal_cchost" ]; then
+		error_msg 'cfghost_internal_test(): $mb_internal_cchost is empty.'
+		exit 2
+	fi
+
+	if [ -d "$mb_project_dir/config/$mb_internal_cchost" ]; then
+		mb_internal_cfghost=$mb_internal_cchost
+	fi
+
+	if [ -z $mb_internal_cfghost ]; then
+		case $mb_internal_cchost in
+			x86_64-*-linux | x86_64-*-linux-* | x86_64-linux-* )
+				mb_internal_cfghost=x86_64-linux ;;
+
+			x86_64-*-midipix | x86_64-*-midipix-* | x86_64-midipix-* )
+				mb_internal_cfghost=x86_64-midipix ;;
+
+			* )
+				mb_internal_cfghost='any-host' ;;
+		esac
+	fi
+
+	if [ $mb_internal_cfgtype = 'target' ]; then
+		mb_cfghost="$mb_internal_cfghost"
+	else
+		mb_native_cc_cfghost="$mb_internal_cfghost"
+	fi
+}
+
+cfghost_set_target_cfghost()
+{
+	mb_internal_cchost="$mb_cchost"
+	mb_internal_cfghost="$mb_cfghost"
+	mb_internal_cfgtype='target'
+
+	cfghost_internal_test
+}
+
+cfghost_set_native_cfghost()
+{
+	mb_internal_cchost="$mb_native_cc_host"
+	mb_internal_cfghost="$mb_native_cc_cfghost"
+	mb_internal_cfgtype='native'
+
+	cfghost_internal_test
+}
-- 
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