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strdup: Improve idiom
From: |
Bruno Haible |
Subject: |
strdup: Improve idiom |
Date: |
Mon, 5 Apr 2010 11:50:53 +0100 |
User-agent: |
KMail/1.9.9 |
This improves the idiom used in strdup.m4. It should have no effect on any
platform, since all platforms which lack strdup are UNIX platforms, i.e. have
a POSIX compliant malloc.
2010-04-05 Bruno Haible <address@hidden>
strdup: Improve idiom.
* m4/strdup.m4 (gl_FUNC_STRDUP): Invoke gl_PREREQ_STRDUP only when
AC_LIBOBJ is used.
(gl_FUNC_STRDUP_POSIX): When strdup is missing and malloc is not POSIX
compliant, don't set REPLACE_STRDUP to 1. Invoke gl_PREREQ_STRDUP only
when AC_LIBOBJ is used.
*** m4/strdup.m4.orig Mon Apr 5 12:45:19 2010
--- m4/strdup.m4 Mon Apr 5 12:33:15 2010
***************
*** 1,4 ****
! # strdup.m4 serial 11
dnl Copyright (C) 2002-2010 Free Software Foundation, Inc.
--- 1,4 ----
! # strdup.m4 serial 12
dnl Copyright (C) 2002-2010 Free Software Foundation, Inc.
***************
*** 9,37 ****
AC_DEFUN([gl_FUNC_STRDUP],
[
AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
! AC_REPLACE_FUNCS([strdup])
AC_CHECK_DECLS_ONCE([strdup])
if test $ac_cv_have_decl_strdup = no; then
HAVE_DECL_STRDUP=0
fi
- gl_PREREQ_STRDUP
])
AC_DEFUN([gl_FUNC_STRDUP_POSIX],
[
AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
AC_REQUIRE([gl_CHECK_MALLOC_POSIX])
! if test $gl_cv_func_malloc_posix != yes; then
! REPLACE_STRDUP=1
! AC_LIBOBJ([strdup])
else
! AC_REPLACE_FUNCS([strdup])
fi
AC_CHECK_DECLS_ONCE([strdup])
if test $ac_cv_have_decl_strdup = no; then
HAVE_DECL_STRDUP=0
fi
- gl_PREREQ_STRDUP
])
# Prerequisites of lib/strdup.c.
--- 9,44 ----
AC_DEFUN([gl_FUNC_STRDUP],
[
AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
! AC_CHECK_FUNCS_ONCE([strdup])
! if test $ac_cv_func_strdup != yes; then
! AC_LIBOBJ([strdup])
! gl_PREREQ_STRDUP
! fi
AC_CHECK_DECLS_ONCE([strdup])
if test $ac_cv_have_decl_strdup = no; then
HAVE_DECL_STRDUP=0
fi
])
AC_DEFUN([gl_FUNC_STRDUP_POSIX],
[
AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
AC_REQUIRE([gl_CHECK_MALLOC_POSIX])
! AC_CHECK_FUNCS_ONCE([strdup])
! if test $ac_cv_func_strdup = yes; then
! if test $gl_cv_func_malloc_posix != yes; then
! REPLACE_STRDUP=1
! AC_LIBOBJ([strdup])
! gl_PREREQ_STRDUP
! fi
else
! AC_LIBOBJ([strdup])
! gl_PREREQ_STRDUP
fi
AC_CHECK_DECLS_ONCE([strdup])
if test $ac_cv_have_decl_strdup = no; then
HAVE_DECL_STRDUP=0
fi
])
# Prerequisites of lib/strdup.c.
- strdup: Improve idiom,
Bruno Haible <=