X-Git-Url: http://git.marmaro.de/?a=blobdiff_plain;f=configure.in;h=76237e26810f52a37ec6f36fdc3564345293dbf0;hb=eeef255a56fa2a1551c88571cf4bc34eeb858ef8;hp=35c22129a590f05110ce6d428efb92da4604f1e2;hpb=e001a96010a62d4bd79a33955bb29e3c18bb26fe;p=mmh

diff --git a/configure.in b/configure.in
index 35c2212..76237e2 100644
--- a/configure.in
+++ b/configure.in
@@ -280,7 +280,7 @@ fi
 dnl ...If it's not, we need to #define MAILGROUP to 1 and make inc setgid.
 if test x"$nmh_cv_mailspool_world_writable" = x"no"; then
   dnl do we really need both of these?
-  AC_DEFINE(MAILGROUP)
+  AC_DEFINE(MAILGROUP)dnl
   SETGID_MAIL=1
 fi
 AC_SUBST(SETGID_MAIL)dnl
@@ -377,6 +377,15 @@ AC_TRY_LINK([#include <setjmp.h>], [sigsetjmp((void *)0, 0);],
 
 AC_REPLACE_FUNCS(snprintf strerror strdup)
 
+dnl On AIX 4.1, snprintf() is defined in libc.a but there's no prototype in
+dnl <stdio.h> or elsewhere.  Apparently it's not officially supported (though it
+dnl seems to work perfectly and IBM apparently uses it in internal code).
+dnl Anyhow, if we omit our own snprintf() and vsnprintf() prototypes when we
+dnl HAVE_SNPRINTF, we get a billion warnings at compile time.  Use the C
+dnl preprocessor to preprocess stdio.h and make sure that there's actually a 
+dnl prototype. 
+AC_EGREP_HEADER(snprintf, stdio.h, AC_DEFINE(HAVE_SNPRINTF_PROTOTYPE))
+
 dnl -------------------
 dnl CHECK FOR LIBRARIES
 dnl -------------------