[mpich2-commits] r7978 - mpich2/trunk/confdb

[chan at mcs.anl.gov]

Author: chan
Date: 2011-02-16 12:49:10 -0600 (Wed, 16 Feb 2011)
New Revision: 7978

Modified:
   mpich2/trunk/confdb/aclocal_fc.m4
Log:
added requirement of AC_HEADER_STDC for tests that need it, and remove unnecessary include of standard headers.



Modified: mpich2/trunk/confdb/aclocal_fc.m4
===================================================================
--- mpich2/trunk/confdb/aclocal_fc.m4	2011-02-16 18:40:52 UTC (rev 7977)
+++ mpich2/trunk/confdb/aclocal_fc.m4	2011-02-16 18:49:10 UTC (rev 7978)
@@ -465,6 +465,7 @@
 dnl
 dnl
 AC_DEFUN([PAC_PROG_FC_AND_C_STDIO_LIBS],[
+AC_REQUIRE([AC_HEADER_STDC])
 # To simply the code in the cache_check macro, chose the routine name
 # first, in case we need it
 confname=conf1_
@@ -484,7 +485,9 @@
 AC_LANG_PUSH(C)
 AC_COMPILE_IFELSE([
     AC_LANG_SOURCE([
+#if defined(HAVE_STDIO_H) || defined(STDC_HEADERS)
 #include <stdio.h>
+#endif
 int $confname( int a )
 { printf( "The answer is %d\n", a ); fflush(stdout); return 0; }
     ])
@@ -913,8 +916,6 @@
 AC_LANG_PUSH([C])
 AC_COMPILE_IFELSE([
     AC_LANG_SOURCE([
-#include <stdio.h>
-#include "confdefs.h"
 #ifdef F77_NAME_UPPER
 #define cisize_ CISIZE
 #define isize_ ISIZE