curl/m4/curl-sysconfig.m4
Viktor Szakats e1f6192939
configure: fix SystemConfiguration detection
Before this patch, `SystemConfiguration` detection failed due to this
error when compiling the detection snippet:
```
/Applications/Xcode_15.3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/TargetConditionals.h:140:50: error: missing binary operator before token "("
  140 | #if !defined(__has_extension) || !__has_extension(define_target_os_macros)
      |                                                  ^
```
Ref: https://github.com/curl/curl/actions/runs/9821817534/job/27117929218#step:6:1079

It occured with gcc-11 when combined with macOS SDK 14.4 and 14.5
(default SDKs in Xcode 15.3 and 15.4 respectively). It did not happen
with earlier releases.

Despite the failure in `./configure`, `lib/macos.c` compiled with
Apple's `TargetConditionals.h` just fine.

Turns out that including the `sys/types.h` header before the SDK
header fixes the error and makes the detection snippet compile.

Cherry-picked from #14097
Closes #14130
2024-07-10 11:30:40 +02:00

56 lines
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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 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 https://curl.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.
#
# SPDX-License-Identifier: curl
#
#***************************************************************************
AC_DEFUN([CURL_DARWIN_SYSTEMCONFIGURATION], [
AC_MSG_CHECKING([whether to link macOS CoreFoundation, CoreServices, and SystemConfiguration frameworks])
case $host_os in
darwin*)
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
#include <sys/types.h>
#include <TargetConditionals.h>
]],[[
#if TARGET_OS_MAC && !(defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
return 0;
#else
#error Not macOS
#endif
]])
],[
build_for_macos="yes"
],[
build_for_macos="no"
])
if test "x$build_for_macos" != xno; then
AC_MSG_RESULT(yes)
LDFLAGS="$LDFLAGS -framework CoreFoundation -framework CoreServices -framework SystemConfiguration"
else
AC_MSG_RESULT(no)
fi
;;
*)
AC_MSG_RESULT(no)
esac
])