kbuild: check if we can link gettext not just compile

cygwin provides the header file but the lib file needs
to be added manually. A generic fix is to check if
we can compile and link a program that uses gettext()
and if it fails fall back to NO_NLS.

International users of cygwin may have to specify
HOST_LOADLIBES := "-lintl" on the make command line.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Sam Ravnborg 2007-08-12 23:15:44 +02:00 committed by Sam Ravnborg
parent 4f4c4ee1b7
commit aa1e5ef5c1
2 changed files with 16 additions and 8 deletions

View file

@ -143,14 +143,8 @@ clean-files := lkc_defs.h qconf.moc .tmp_qtcheck \
.tmp_gtkcheck zconf.tab.c lex.zconf.c zconf.hash.c
clean-files += mconf qconf gconf
# Needed for systems without gettext
KBUILD_HAVE_NLS := $(shell \
if echo "\#include <libintl.h>" | $(HOSTCC) $(HOSTCFLAGS) -E - > /dev/null 2>&1 ; \
then echo yes ; \
else echo no ; fi)
ifeq ($(KBUILD_HAVE_NLS),no)
HOSTCFLAGS += -DKBUILD_NO_NLS
endif
# Add environment specific flags
HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCC) $(HOSTCFLAGS))
# generated files seem to need this to find local include files
HOSTCFLAGS_lex.zconf.o := -I$(src)

14
scripts/kconfig/check.sh Executable file
View file

@ -0,0 +1,14 @@
#!/bin/sh
# Needed for systems without gettext
$* -xc -o /dev/null - > /dev/null 2>&1 << EOF
#include <libintl.h>
int main()
{
gettext("");
return 0;
}
EOF
if [ ! "$?" -eq "0" ]; then
echo -DKBUILD_NO_NLS;
fi