+2023-02-06 Bruno Haible <bruno@clisp.org>
+
+ setlocale-null: Don't use a lock in Cygwin >= 3.4.6.
+ Road paved by Corinna Vinschen <vinschen@redhat.com>.
+ * m4/setlocale_null.m4 (gl_FUNC_SETLOCALE_NULL): Assume that
+ setlocale (LC_ALL, NULL) is multithread-safe in Cygwin >= 3.4.6.
+ * lib/setlocale_null.c: Update comments.
+ * tests/test-setlocale_null-mt-all.c: Likewise.
+
2023-02-05 Bruno Haible <bruno@clisp.org>
c-nullptr: Fix conflict with libstdc++ in GCC >= 11.
#endif
}
-#if !(SETLOCALE_NULL_ALL_MTSAFE && SETLOCALE_NULL_ONE_MTSAFE) /* musl libc, macOS, FreeBSD, NetBSD, OpenBSD, AIX, Haiku, Cygwin */
+#if !(SETLOCALE_NULL_ALL_MTSAFE && SETLOCALE_NULL_ONE_MTSAFE) /* musl libc, macOS, FreeBSD, NetBSD, OpenBSD, AIX, Haiku, Cygwin < 3.4.6 */
/* Use a lock, so that no two threads can invoke setlocale_null_unlocked
at the same time. */
return ret;
}
-# elif HAVE_PTHREAD_API /* musl libc, macOS, FreeBSD, NetBSD, OpenBSD, AIX, Haiku, Cygwin */
+# elif HAVE_PTHREAD_API /* musl libc, macOS, FreeBSD, NetBSD, OpenBSD, AIX, Haiku, Cygwin < 3.4.6 */
extern
# if defined _WIN32 || defined __CYGWIN__
-# setlocale_null.m4 serial 6
+# setlocale_null.m4 serial 7
dnl Copyright (C) 2019-2023 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
AC_CACHE_CHECK([whether setlocale (LC_ALL, NULL) is multithread-safe],
[gl_cv_func_setlocale_null_all_mtsafe],
[case "$host_os" in
- # Guess no on musl libc, macOS, FreeBSD, NetBSD, OpenBSD, AIX, Haiku, Cygwin.
- *-musl* | darwin* | freebsd* | midnightbsd* | netbsd* | openbsd* | aix* | haiku* | cygwin*)
+ # Guess no on musl libc, macOS, FreeBSD, NetBSD, OpenBSD, AIX, Haiku.
+ *-musl* | darwin* | freebsd* | midnightbsd* | netbsd* | openbsd* | aix* | haiku*)
gl_cv_func_setlocale_null_all_mtsafe=no ;;
+ # Guess no on Cygwin < 3.4.6.
+ cygwin*)
+ AC_EGREP_CPP([Lucky user],
+ [
+#if defined __CYGWIN__
+ #include <cygwin/version.h>
+ #if CYGWIN_VERSION_DLL_COMBINED >= CYGWIN_VERSION_DLL_MAKE_COMBINED (3004, 6)
+ Lucky user
+ #endif
+#endif
+ ],
+ [gl_cv_func_setlocale_null_all_mtsafe=yes],
+ [gl_cv_func_setlocale_null_all_mtsafe=no])
+ ;;
# Guess yes on glibc, HP-UX, IRIX, Solaris, native Windows.
*-gnu* | gnu* | hpux* | irix* | solaris* | mingw*)
gl_cv_func_setlocale_null_all_mtsafe=yes ;;