(malloc, realloc, free) [emacs]: Undefine before

redefining, to avoid compiler warnings.

diff --git a/regex.c b/regex.c
index b3d0658c7dcd42b000fbd960ad5ef4cfca45550a..9fe099c7125fbfdae837436764d2fdcfaee0f7eb 100644 (file)
--- a/regex.c
+++ b/regex.c
@@ -124,8 +124,17 @@
 # include "charset.h"
 # include "category.h"
 
+# ifdef malloc
+#  undef malloc
+# endif
 # define malloc xmalloc
+# ifdef realloc
+#  undef realloc
+# endif
 # define realloc xrealloc
+# ifdef free
+#  undef free
+# endif
 # define free xfree
 
 /* Converts the pointer to the char to BEG-based offset from the start.         */