Re: [Bruno Haible <address@hidden>] _AC_COMPUTE_INT forgets to include stdio.h, stdlib.h

[Paul Eggert]

> From: Akim Demaille <address@hidden>
> Date: 13 Sep 2001 17:24:41 +0200
> 
> This seems OK to me.  Paul?

Yes, it looks good.  Thanks, Bruno.

Might I also suggest the following (alas untested) patch?

2001-09-13  Paul Eggert  <address@hidden>

        * aclang.m4: (AC_LANG_INT_SAVE(C)): Convert to `long', not
        `int', to handle more integers.  Check for output errors.
        Append a newline, as POSIX requires that a shell be given only
        text files, and text files must end in newline.

===================================================================
RCS file: aclang.m4,v
retrieving revision 2.52.0.1
retrieving revision 2.52.0.2
diff -pu -r2.52.0.1 -r2.52.0.2
--- aclang.m4   2001/09/13 11:03:33     2.52.0.1
+++ aclang.m4   2001/09/13 16:49:28     2.52.0.2
@@ -427,14 +427,15 @@ m4_define([AC_LANG_BOOL_COMPILE_TRY(C)],
 # them only after the EXPRESSION has been evaluated.
 m4_define([AC_LANG_INT_SAVE(C)],
 [AC_LANG_PROGRAM([$1
-int conftestval () { return ($2); }
+long conftestval () { return ($2); }
 @%:@include <stdio.h>
 @%:@include <stdlib.h>],
 [FILE *f = fopen ("conftest.val", "w");
 if (!f)
   exit (1);
-fprintf (f, "%d", conftestval ());
-fclose (f);])])
+fprintf (f, "%ld\n", conftestval ());
+if (ferror (f) || fclose (f) != 0)
+  exit (1);])])
 
 
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