fix cross compilation
Even though fontconfig's build system tries to build edit-sgml with the
build arch compiler, it gets the runes wrong and actually builds it with
the host arch compiler. This patch makes it use the right compiler.
Bug-Debian: https://bugs.debian.org/779461
https://bugs.freedesktop.org/show_bug.cgi?id=101554
diff --git a/doc/Makefile.am b/doc/Makefile.am
index 670aa54..2194ab7 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -123,7 +123,10 @@
edit_sgml_SOURCES = \
edit-sgml.c \
$(NULL)
-edit_sgml_CC := $(CC_FOR_BUILD)
+$(edit_sgml_OBJECTS) : CC:=$(CC_FOR_BUILD)
+$(edit_sgml_OBJECTS) : CFLAGS:=$(CFLAGS_FOR_BUILD)
+$(edit_sgml_OBJECTS) : CPPFLAGS:=$(CPPFLAGS_FOR_BUILD)
+edit_sgml_LINK = $(CC_FOR_BUILD) -o $@
#
check_SCRIPTS = \
check-missing-doc \
