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Re: autoconf 2.49 on UNICOS
From: |
Akim Demaille |
Subject: |
Re: autoconf 2.49 on UNICOS |
Date: |
29 Nov 2000 15:18:22 +0100 |
User-agent: |
Gnus/5.0807 (Gnus v5.8.7) XEmacs/21.1 (Channel Islands) |
>>>>> "Alexandre" == Alexandre Oliva <address@hidden> writes:
Alexandre> On Nov 17, 2000, Akim Demaille <address@hidden> wrote:
>> Because I believe the definition I gave of it implied it was two
>> chars wide. But maybe I'm making wrong assumptions
Alexandre> You are. Some ABIs specify minimum alignments for
Alexandre> arbitrary structs.
Alexandre> How about `typedef char charchar[2]'?
Thanks! I'm applying this change:
2000-11-29 Akim Demaille <address@hidden>
sizeof (struct {char a,b; }) is not required to be 2.
Reported by Johan Danielsson.
* tests/semantics.at (AC_CHECK_SIZEOF): Define charchar as an
array of 2 chars.
Suggested by Alexandre.
Index: tests/semantics.at
===================================================================
RCS file: /cvs/autoconf/tests/semantics.at,v
retrieving revision 1.8
diff -u -u -r1.8 semantics.at
--- tests/semantics.at 2000/11/29 10:11:38 1.8
+++ tests/semantics.at 2000/11/29 14:12:38
@@ -101,27 +101,19 @@
# AC_CHECK_SIZEOF
# ---------------
AT_CHECK_MACRO([AC_CHECK_SIZEOF],
-[AC_CHECK_SIZEOF(char)
+[[AC_CHECK_SIZEOF(char)
AC_CHECK_SIZEOF(charchar,,
-[#include <stdio.h>
-typedef struct
-{
- char a;
- char b;
-} charchar;])
+[[#include <stdio.h>
+typedef char charchar[2];]])
AC_CHECK_SIZEOF(charcharchar)
# Exercize the code used when cross-compiling
cross_compiling=yes
AC_CHECK_SIZEOF(unsigned char)
AC_CHECK_SIZEOF(ucharchar,,
-[#include <stdio.h>
-typedef struct
-{
- unsigned char a;
- unsigned char b;
-} ucharchar;])
-AC_CHECK_SIZEOF(ucharcharchar)],
+[[#include <stdio.h>
+typedef unsigned char ucharchar[2];]])
+AC_CHECK_SIZEOF(ucharcharchar)]],
[AT_CHECK_DEFINES(
[#define SIZEOF_CHAR 1
#define SIZEOF_CHARCHAR 2
Johan, I think we have fixed all the troubles you faced. Could you
check that the test suite now runs smoothly? Thanks!