From 5f22deaa92b82165ab290af6fbf7dee6bcd704da Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Sun, 2 Dec 2018 20:32:30 -0500
Subject: build system: added NATIVE_CC_HOST support.

---
 Makefile.in  | 9 ++++++++-
 config.usage | 2 ++
 configure    | 8 ++++++++
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/Makefile.in b/Makefile.in
index 208a2ed..89d4904 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -84,6 +84,8 @@ PDFDIR			= @pdfdir@
 PSDIR			= @psdir@
 
 NATIVE_CC 		= @native_cc@
+NATIVE_CC_HOST		= @native_cc_host@
+
 NATIVE_OS 		= @native_os@
 NATIVE_OS_BITS 		= @native_os_bits@
 NATIVE_OS_UNDERSCORE	= @native_os_underscore@
@@ -251,6 +253,9 @@ host.tag:	Makefile
 		$(PROJECT_DIR)/sysinfo/host/host.sh --compiler="$(CC)" --cflags="$(CFLAGS)"
 		touch host.tag
 
+cchost-native:
+		$(PROJECT_DIR)/sysinfo/host/host.sh --compiler="$(NATIVE_CC)"
+
 version.tag:	$(GIT_REFERENCE_INDEX)
 		$(PROJECT_DIR)/sysinfo/version.sh	\
 			-s $(SOURCE_DIR)		\
@@ -412,6 +417,8 @@ clean:		clean-implib
 
 .display-build:
 		@echo NATIVE_CC:'              '$(NATIVE_CC)
+		@echo NATIVE_CC_HOST:'         '$(NATIVE_CC_HOST)
+		@echo
 		@echo NATIVE_OS:'              '$(NATIVE_OS)
 		@echo NATIVE_OS_BITS:'         '$(NATIVE_OS_BITS)
 		@echo NATIVE_OS_UNDERSCORE:'   '$(NATIVE_OS_UNDERSCORE)
@@ -438,7 +445,7 @@ clean:		clean-implib
 		@echo $(CFLAGS)
 
 
-.PHONY:		cchost package-app \
+.PHONY:		cchost cchost-native package-app \
 		all install shared static app \
 		shared-objs shared-lib \
 		shared-soname shared-solink \
diff --git a/config.usage b/config.usage
index b8792bd..36303cd 100644
--- a/config.usage
+++ b/config.usage
@@ -152,6 +152,8 @@ supported variables:
 	ELF_CONFIG_DEFS
 
 	NATIVE_CC
+	NATIVE_CC_HOST
+
 	NATIVE_OS
 	NATIVE_OS_BITS
 	NATIVE_OS_UNDERSCORE
diff --git a/configure b/configure
index 8c4a4ab..e607fee 100755
--- a/configure
+++ b/configure
@@ -113,6 +113,8 @@ init_vars()
 
 	# overrides
 	mb_native_cc=$NATIVE_CC
+	mb_native_cc_host=$NATIVE_CC_HOST
+
 	mb_native_os=$NATIVE_OS
 	mb_native_os_bits=$NATIVE_OS_BITS
 	mb_native_os_underscore=$NATIVE_OS_UNDERSCORE
@@ -346,6 +348,10 @@ native_defaults()
 		mb_native_cc='false'
 	fi
 
+	if [ -z "$mb_native_cc_host" ]; then
+		mb_native_cc_host=$($mb_project_dir/sysinfo/host/host.sh --compiler=$mb_native_cc)
+	fi
+
 	if [ -z "$mb_compiler" ]; then
 		$mb_native_cc -dM -E - < /dev/null | grep -q '__clang__' && mb_compiler='clang'
 	fi
@@ -530,6 +536,8 @@ config_copy()
 			-e 's^@psdir@^'"$mb_psdir"'^g'					\
 											\
 			-e 's^@native_cc@^'"$mb_native_cc"'^g'				\
+			-e 's^@native_cc_host@^'"$mb_native_cc_host"'^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'	\
-- 
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