Alexandre Julliard (@julliard) commented about configure.ac:
AC_DEFINE(HAVE_SCHED_SETAFFINITY, 1, [Define to 1 if you have the `sched_setaffinity' function.]) fi
+AC_CACHE_CHECK([for setpriority],wine_cv_have_setpriority,
AC_LINK_IFELSE([AC_LANG_PROGRAM(
+[[#define _GNU_SOURCE +#include <sys/resource.h> +#include <sys/time.h>]], [[setpriority(0, 0, 0);]])],[wine_cv_have_setpriority=yes],[wine_cv_have_setpriority=no])) +if test "$wine_cv_have_setpriority" = "yes" +then
- AC_DEFINE(HAVE_SETPRIORITY, 1, [Define to 1 if you have the `setpriority' function.])
+fi
Why do you need a compile check? Is the prototype different on other platforms?