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

Signed-off-by: Simon Josefsson <simon@josefsson.org>

diff --git a/ChangeLog b/ChangeLog
index 1d13895595a5cbdd25027123c9f09645e61ba447..bbfecf941e11dfcfb82f06399f92486d4a13f55c 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2010-03-23  Pádraig Brady <P@draigBrady.com>  (tiny change)
+
+       * maint.mk (sc_Wundef_boolean): Check for the presence of the
+       config header before grepping, as it's not present before
+       autoreconf/configure are run.  Reported by Simon Josefsson.
+
 2010-03-23  Bruno Haible  <bruno@clisp.org>
 
        pt_chown: Make it work with automake < 1.11.

diff --git a/top/maint.mk b/top/maint.mk
index 67421f2bb20297429c9e9610005fbb6fe84022bb..09da20afc8811e22b1e0bfaf50cd2abde60a0a7c 100644 (file)
--- a/top/maint.mk
+++ b/top/maint.mk
@@ -766,8 +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);                    \