diff options
Diffstat (limited to 'm4/threadlib.m4')
| -rw-r--r-- | m4/threadlib.m4 | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/m4/threadlib.m4 b/m4/threadlib.m4 index 1fc5777..6dee893 100644 --- a/m4/threadlib.m4 +++ b/m4/threadlib.m4 @@ -1,5 +1,5 @@ -# threadlib.m4 serial 38 -dnl Copyright (C) 2005-2023 Free Software Foundation, Inc. +# threadlib.m4 serial 42 +dnl Copyright (C) 2005-2024 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -85,7 +85,7 @@ AC_DEFUN([gl_WEAK_SYMBOLS], AC_CACHE_CHECK([whether imported symbols can be declared weak], [gl_cv_have_weak], [case "$host_os" in - cygwin* | mingw*) + cygwin* | mingw* | windows*) dnl On Cygwin 3.2.0 with gcc 10.2, and likewise on mingw 10.0.0 with dnl gcc 11.3, the test below would succeed, but programs that use dnl pthread_in_use() with weak symbol references crash miserably at @@ -206,7 +206,7 @@ AC_DEFUN([gl_PTHREADLIB_BODY], # If -pthread works, prefer it to -lpthread, since Ubuntu 14.04 # needs -pthread for some reason. See: # https://lists.gnu.org/r/bug-gnulib/2014-09/msg00023.html - save_LIBS=$LIBS + saved_LIBS="$LIBS" for gl_pthread in '' '-pthread'; do LIBS="$LIBS $gl_pthread" AC_LINK_IFELSE( @@ -220,7 +220,7 @@ AC_DEFUN([gl_PTHREADLIB_BODY], [gl_pthread_api=yes LIBPTHREAD=$gl_pthread LIBPMULTITHREAD=$gl_pthread]) - LIBS=$save_LIBS + LIBS="$saved_LIBS" test $gl_pthread_api = yes && break done echo "$as_me:__oline__: gl_pthread_api=$gl_pthread_api" >&AS_MESSAGE_LOG_FD @@ -269,6 +269,15 @@ changequote([,])dnl [Define if the pthread_in_use() detection is hard.]) esac fi + ], + [dnl This is needed on FreeBSD 5.2.1. + AC_CHECK_LIB([thr], [pthread_kill], + [if test $gl_pthread_in_glibc = yes; then + LIBPMULTITHREAD= + else + LIBPMULTITHREAD=-lthr + fi + ]) ]) elif test $gl_pthread_api != yes; then # Some library is needed. Try libpthread and libc_r. @@ -344,7 +353,7 @@ AC_DEFUN([gl_STDTHREADLIB_BODY], AC_CHECK_HEADERS_ONCE([threads.h]) case "$host_os" in - mingw*) + mingw* | windows*) LIBSTDTHREAD= ;; *) @@ -465,7 +474,7 @@ changequote(,)dnl esac ;; dnl Obey gl_AVOID_WINPTHREAD on mingw. - mingw*) + mingw* | windows*) case "$gl_use_winpthreads_default" in yes) gl_use_threads=posix ;; no) gl_use_threads=windows ;; @@ -564,7 +573,7 @@ AC_DEFUN([gl_THREADLIB_BODY], case "$gl_use_threads" in yes | windows | win32) # The 'win32' is for backward compatibility. if { case "$host_os" in - mingw*) true;; + mingw* | windows*) true;; *) false;; esac }; then @@ -575,6 +584,10 @@ AC_DEFUN([gl_THREADLIB_BODY], ;; esac fi + else + dnl "$gl_use_threads" is "no". + AC_DEFINE([AVOID_ANY_THREADS], [1], + [Define if no multithread safety and no multithreading is desired.]) fi AC_MSG_CHECKING([for multithread API to use]) AC_MSG_RESULT([$gl_threads_api]) |