# Makefile for gnulib central.
-# Copyright (C) 2006, 2009 Free Software Foundation, Inc.
+# Copyright (C) 2006, 2009, 2010 Free Software Foundation, Inc.
#
# Copying and distribution of this file, with or without modification,
# in any medium, are permitted without royalty provided the copyright
cd doc && $(MAKE) $@ && $(MAKE) mostlyclean
# Perform some platform independent checks on the gnulib code.
-check:
+check: sc_prefer_ac_check_funcs_once
+
+sc_prefer_ac_check_funcs_once:
+ git grep -w -l AC_CHECK_FUNCS modules && \
+ { echo use AC_CHECK_FUNCS_ONCE, not AC_CHECK_FUNCS in modules/ 1>&2; \
+ exit 1; } || :
# Regenerate some files that are stored in the repository.
regen: MODULES.html