From 5410b83fa92587f8dea118ecadc15da92540307c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Martin=20Storsj=C3=B6?= Date: Thu, 21 Apr 2022 14:25:51 +0300 Subject: [PATCH 071/N] configure: Include a header in the check for _beginthread Previously, the test tried compiling a call to the _beginthread function without either declaring the function (and its parameters) or including the corresponding header. Since Clang 15 (which still is under development, so this may still change before it's released) [1], implicit function declarations are a hard error by default, when building code in C99 mode (or newer). [1] https://github.com/llvm/llvm-project/commit/7d644e1215b376ec5e915df9ea2eeb56e2d94626 --- configure.ac | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index e8d63cd..8a0f79c 100644 --- a/configure.ac +++ b/configure.ac @@ -2870,7 +2870,7 @@ AC_MSG_RESULT([$with_nt_threads]) if test $with_nt_threads = yes ; then AC_MSG_CHECKING([whether linking with nt-threads work]) AC_LINK_IFELSE([ - AC_LANG_PROGRAM([[]],[[_beginthread(0, 0, 0);]]) + AC_LANG_PROGRAM([[#include ]],[[_beginthread(0, 0, 0);]]) ], [AC_MSG_RESULT([yes])], [AC_MSG_ERROR([failed to link with nt-threads])])