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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
Daniel Stenberg
committed
# Copyright (C) 1998 - 2008, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at http://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
# $Id$
#***************************************************************************
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dnl CURL_CHECK_COMPILER_HALT_ON_ERROR
dnl -------------------------------------------------
dnl Verifies if the compiler actually halts after the
dnl compilation phase without generating any object
dnl code file, when the source compiles with errors.
AC_DEFUN([CURL_CHECK_COMPILER_HALT_ON_ERROR], [
AC_MSG_CHECKING([if compiler halts on compilation errors])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
]],[[
force compilation error
]])
],[
AC_MSG_RESULT([no])
AC_MSG_ERROR([compiler does not halt on compilation errors.])
],[
AC_MSG_RESULT([yes])
])
])
dnl CURL_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE
dnl -------------------------------------------------
dnl Verifies if the compiler actually halts after the
dnl compilation phase without generating any object
dnl code file, when the source code tries to define a
dnl type for a constant array with negative dimension.
AC_DEFUN([CURL_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE], [
AC_REQUIRE([CURL_CHECK_COMPILER_HALT_ON_ERROR])dnl
AC_MSG_CHECKING([if compiler halts on negative sized arrays])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
typedef char bad_t[sizeof(char) == sizeof(int) ? -1 : -1 ];
]],[[
bad_t dummy;
]])
],[
AC_MSG_RESULT([no])
AC_MSG_ERROR([compiler does not halt on negative sized arrays.])
],[
AC_MSG_RESULT([yes])
])
])
dnl -------------------------------------------------
dnl Use the C preprocessor to find out if the given object-style symbol
dnl is defined and get its expansion. This macro will not use default
dnl includes even if no INCLUDES argument is given. This macro will run
dnl silently when invoked with three arguments. If the expansion would
dnl result in a set of double-quoted strings the returned expansion will
dnl actually be a single double-quoted string concatenating all them.
AC_DEFUN([CURL_CHECK_DEF], [
AS_VAR_PUSHDEF([ac_HaveDef], [curl_cv_have_def_$1])dnl
AS_VAR_PUSHDEF([ac_Def], [curl_cv_def_$1])dnl
if test -z "$SED"; then
AC_MSG_ERROR([SED not set. Cannot continue without SED being set.])
fi
if test -z "$GREP"; then
AC_MSG_ERROR([GREP not set. Cannot continue without GREP being set.])
fi
ifelse($3,,[AC_MSG_CHECKING([for preprocessor definition of $1])])
tmp_exp=""
AC_PREPROC_IFELSE([
AC_LANG_SOURCE(
ifelse($2,,,[$2])[[
#ifdef $1
CURL_DEF_TOKEN $1
#endif
]])
],[
tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
"$GREP" CURL_DEF_TOKEN 2>/dev/null | \
"$SED" 's/.*CURL_DEF_TOKEN[[ ]]//' 2>/dev/null | \
"$SED" 's/[["]][[ ]]*[["]]//g' 2>/dev/null`
tmp_exp=""
fi
])
if test -z "$tmp_exp"; then
ifelse($3,,[AC_MSG_RESULT([no])])
else
AS_VAR_SET(ac_HaveDef, yes)
AS_VAR_SET(ac_Def, $tmp_exp)
ifelse($3,,[AC_MSG_RESULT([$tmp_exp])])
fi
AS_VAR_POPDEF([ac_Def])dnl
AS_VAR_POPDEF([ac_HaveDef])dnl
])
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dnl CURL_CHECK_AIX_ALL_SOURCE
dnl -------------------------------------------------
dnl Provides a replacement of traditional AC_AIX with
dnl an uniform behaviour across all autoconf versions,
dnl and with our own placement rules.
AC_DEFUN([CURL_CHECK_AIX_ALL_SOURCE], [
AH_VERBATIM([_ALL_SOURCE],
[/* Define to 1 if OS is AIX. */
#ifndef _ALL_SOURCE
# undef _ALL_SOURCE
#endif])
AC_BEFORE([$0], [AC_SYS_LARGEFILE])dnl
AC_BEFORE([$0], [CURL_CONFIGURE_REENTRANT])dnl
AC_MSG_CHECKING([if OS is AIX (to define _ALL_SOURCE)])
AC_EGREP_CPP([yes_this_is_aix],[
#ifdef _AIX
yes_this_is_aix
#endif
],[
AC_MSG_RESULT([yes])
AC_DEFINE(_ALL_SOURCE)
],[
AC_MSG_RESULT([no])
])
])
dnl CURL_CHECK_HEADER_WINDOWS
dnl -------------------------------------------------
AC_DEFUN([CURL_CHECK_HEADER_WINDOWS], [
AC_CACHE_CHECK([for windows.h], [ac_cv_header_windows_h], [
AC_COMPILE_IFELSE([
#define WIN32_LEAN_AND_MEAN
#if defined(__CYGWIN__) || defined(__CEGCC__)
HAVE_WINDOWS_H shall not be defined.
#else
#endif
],[
ac_cv_header_windows_h="yes"
],[
ac_cv_header_windows_h="no"
])
])
Yang Tse
committed
case "$ac_cv_header_windows_h" in
yes)
AC_DEFINE_UNQUOTED(HAVE_WINDOWS_H, 1,
[Define to 1 if you have the windows.h header file.])
AC_DEFINE_UNQUOTED(WIN32_LEAN_AND_MEAN, 1,
[Define to avoid automatic inclusion of winsock.h])
;;
esac
dnl CURL_CHECK_NATIVE_WINDOWS
dnl -------------------------------------------------
dnl Check if building a native Windows target
AC_DEFUN([CURL_CHECK_NATIVE_WINDOWS], [
AC_REQUIRE([CURL_CHECK_HEADER_WINDOWS])dnl
AC_CACHE_CHECK([whether build target is a native Windows one], [ac_cv_native_windows], [
if test "$ac_cv_header_windows_h" = "no"; then
ac_cv_native_windows="no"
else
AC_COMPILE_IFELSE([
#if defined(__MINGW32__) || defined(__MINGW32CE__) || \
(defined(_MSC_VER) && (defined(_WIN32) || defined(_WIN64)))
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