From b4f0516022a8ceb2f6899a55d8a641b6d6c8ee4f Mon Sep 17 00:00:00 2001 From: Bruno Haible Date: Tue, 24 Jan 2006 21:44:37 +0000 Subject: [PATCH] Work around HP-UX and AIX C compiler bugs with built-in _Bool. --- lib/ChangeLog | 6 ++++++ lib/stdbool_.h | 15 +++++++++++++-- 2 files changed, 19 insertions(+), 2 deletions(-) diff --git a/lib/ChangeLog b/lib/ChangeLog index 163a204835..c3f544ab14 100644 --- a/lib/ChangeLog +++ b/lib/ChangeLog @@ -1,3 +1,9 @@ +2006-01-24 Bruno Haible + + * stdbool_.h (_Bool) [HP-UX cc, AIX cc,xlc] : Define as 'signed char' + to avoid problems with the built-in _Bool type. + Reported by Paul Eggert on 2005-11-26. + 2006-01-24 Jim Meyering * socket_.h: Remove useless parentheses in uses of cpp `defined'. diff --git a/lib/stdbool_.h b/lib/stdbool_.h index 3177ae03cf..586b5c7173 100644 --- a/lib/stdbool_.h +++ b/lib/stdbool_.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 2001, 2002, 2003, 2006 Free Software Foundation, Inc. Written by Bruno Haible , 2001. This program is free software; you can redistribute it and/or modify @@ -71,7 +71,18 @@ (see ISO C 99 6.3.1.1.(2)). So we add a negative value to the enum; this ensures that '_Bool' promotes to 'int'. */ #if !(defined __cplusplus || defined __BEOS__) -# if !@HAVE__BOOL@ +# if @HAVE__BOOL@ +# if defined __HP_cc || defined __xlc__ + /* Some HP-UX cc and AIX IBM C compiler versions have compiler bugs when + the built-in _Bool type is used. See + http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html + http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html + http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html + Override it. */ +# define _Bool signed char +enum { false = 0, true = 1 }; +# endif +# else # if defined __SUNPRO_C && (__SUNPRO_C < 0x550 || __STDC__ == 1) /* Avoid stupid "warning: _Bool is a keyword in ISO C99". */ # define _Bool signed char -- 2.30.2