# 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_prohibit_augmenting_PATH_via_TESTS_ENVIRONMENT \
+ sc_pragma_columns \
+ sc_prefer_ac_check_funcs_once
+
+sc_prefer_ac_check_funcs_once:
+ if test -d .git; then \
+ git grep -w -l AC_CHECK_FUNCS modules \
+ && { echo use AC_CHECK_FUNCS_ONCE, not AC_CHECK_FUNCS \
+ in modules/ 1>&2; exit 1; } || : \
+ else :; fi
+
+sc_prohibit_augmenting_PATH_via_TESTS_ENVIRONMENT:
+ if test -d .git; then \
+ url=http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/22874; \
+ git grep '^[ ]*TESTS_ENVIRONMENT += PATH=' modules \
+ && { printf '%s\n' 'Do not augment PATH via TESTS_ENVIRONMENT;' \
+ " see <$$url>" 1>&2; exit 1; } || : \
+ else :; fi
+
+sc_pragma_columns:
+ if test -d .git; then \
+ git ls-files|grep '\.in\.h$$' \
+ | xargs grep -l '^@PRAGMA_SYSTEM_HEADER@' \
+ | xargs grep -L '^@PRAGMA_COLUMNS@' \
+ | grep . \
+ && { printf '%s\n' \
+ 'the files listed above use @PRAGMA_SYSTEM_HEADER@' \
+ 'without also using @PRAGMA_COLUMNS@' 1>&2; \
+ exit 1; } || :; \
+ else :; fi
# Regenerate some files that are stored in the repository.
regen: MODULES.html