maint.mk (sc_Wundef_boolean): Skip test if no config.h.

[gnulib.git] / top / maint.mk

diff --git a/top/maint.mk b/top/maint.mk
index d2248d8..09da20a 100644 (file)
--- a/top/maint.mk
+++ b/top/maint.mk
@@ -561,6 +561,13 @@ sc_GFDL_version:
        @re='$(_GFDL_regexp)' msg='GFDL vN, N!=3'                       \
          $(_prohibit_regexp)
 
+# Don't use Texinfo @acronym{} as it is not a good idea.
+sc_texinfo_acronym:
+       @grep -nE '@acronym{'                                           \
+           $$($(VC_LIST_EXCEPT) | grep -E '\.texi$$') &&               \
+         { echo '$(ME): found use of Texinfo @acronym{}' 1>&2;         \
+           exit 1; } || :
+
 cvs_keywords = \
   Author|Date|Header|Id|Name|Locker|Log|RCSfile|Revision|Source|State
 
@@ -759,8 +766,9 @@ sc_copyright_check:
 # tests many undefined macros, and so we can't enable that option.
 # So at least preclude common boolean strings as macro values.
 sc_Wundef_boolean:
-       @grep -Ei '^#define.*(yes|no|true|false)$$' '$(CONFIG_INCLUDE)' && \
-         { echo 'Use 0 or 1 for macro values' 1>&2; exit 1; } || :
+       @test -e '$(CONFIG_INCLUDE)' &&                                 \
+          grep -Ei '^#define.*(yes|no|true|false)$$' '$(CONFIG_INCLUDE)' && \
+            { echo 'Use 0 or 1 for macro values' 1>&2; exit 1; } || :
 
 sc_vulnerable_makefile_CVE-2009-4029:
        @files=$$(find $(srcdir) -name Makefile.in);                    \