X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Frealloc.m4;h=5166ad4df212425efb9ae17236ebb77642d9b0a7;hb=f1df5643e969a40ddeeaf350724ef5c03f8170a3;hp=431ba5bb8ec5195523319adc229988a000c4eba2;hpb=e2b0600075186f7ebe7940c19078a645db4acae6;p=gnulib.git

diff --git a/m4/realloc.m4 b/m4/realloc.m4
index 431ba5bb8..5166ad4df 100644
--- a/m4/realloc.m4
+++ b/m4/realloc.m4
@@ -1,4 +1,4 @@
-#serial 1
+#serial 2
 
 dnl From Jim Meyering.
 dnl Determine whether realloc works when both arguments are 0.
@@ -12,6 +12,11 @@ dnl
 
 AC_DEFUN(jm_FUNC_REALLOC,
 [
+ dnl xmalloc.c requires that this symbol be defined so it doesn't
+ dnl mistakenly use a broken realloc -- as it might if this test were omitted.
+ AC_DEFINE_UNQUOTED(HAVE_DONE_WORKING_REALLOC_CHECK, 1,
+                    [Define if the realloc check has been performed. ])
+
  AC_CACHE_CHECK([for working realloc], jm_cv_func_working_realloc,
   [AC_TRY_RUN([
     char *realloc ();