[PATCH 0/1] MR528: configure: Use AC_CHECK_FUNCS to define HAVE_GETTID

[Florian Weimer (＠fweimer)]

`VKD3D_CHECK_FUNC` does not use a fake prototype (`char gettid(void);`) and does not include `<unistd.h>`.  It always fails with Clang 16 and GCC 14 and other compilers which do not support implicit function declarations.

Related to:

* https://fedoraproject.org/wiki/Changes/PortingToModernC
* https://fedoraproject.org/wiki/Toolchain/PortingToModernC

-- 
https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/528

[PATCH 1/1] configure: Use AC_CHECK_FUNCS to define HAVE_GETTID

[Florian Weimer]

From: Florian Weimer <fweimer(a)redhat.com>

VKD3D_CHECK_FUNC does not use a fake prototype (char gettid(void);)
and does not include <unistd.h>.  It always fails with Clang 16 and
GCC 14 and other compilers which do not support implicit function
declarations.
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 84209d31a..c7e6994ab 100644
--- a/configure.ac
+++ b/configure.ac
@@ -157,7 +157,7 @@ VKD3D_CHECK_FUNC([HAVE_SYNC_ADD_AND_FETCH], [__sync_add_and_fetch], [__sync_add_
 VKD3D_CHECK_FUNC([HAVE_SYNC_SUB_AND_FETCH], [__sync_sub_and_fetch], [__sync_sub_and_fetch((int *)0, 0)])
 VKD3D_CHECK_FUNC([HAVE_SYNC_BOOL_COMPARE_AND_SWAP], [__sync_bool_compare_and_swap], [__sync_bool_compare_and_swap((int *)0, 0, 0)])
 VKD3D_CHECK_FUNC([HAVE_ATOMIC_EXCHANGE_N], [__atomic_exchange_n], [__atomic_exchange_n((int *)0, 0, 0)])
-VKD3D_CHECK_FUNC([HAVE_GETTID], [gettid], [gettid()])
+AC_CHECK_FUNCS([gettid])
 
 dnl Makefiles
 case $host_os in
-- 
GitLab

https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/528

[PATCH 0/1] MR528: configure: Use AC_CHECK_FUNCS to define HAVE_GETTID - approved

[Henri Verbeet (＠hverbeet)]

This merge request was approved by Henri Verbeet.
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https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/528