diff options
Diffstat (limited to 'm4/threads.m4')
-rw-r--r-- | m4/threads.m4 | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/m4/threads.m4 b/m4/threads.m4 deleted file mode 100644 index 6f2e25f..0000000 --- a/m4/threads.m4 +++ /dev/null @@ -1,68 +0,0 @@ -dnl file : m4/threads.m4 -dnl license : GNU GPL v2; see accompanying LICENSE file -dnl -AC_DEFUN([THREADS],[ - -threads_thread_keyword=no - -AC_ARG_ENABLE( - [threads], - AS_HELP_STRING([--disable-threads], [disable threads (enabled by default)]), - [AS_IF([test x"$enableval" = xno], [threads=none], [threads=check])], - [threads=check]) - -# If thread support is not disabled by the user, figure out what we can use. -# -if test x$threads = xcheck; then - case $host_os in - windows* | mingw*) - case $host_os in - mingw*) - CXXFLAGS="$CXXFLAGS -mthreads" - ;; - esac - - # Newer versions of GCC can be configured to use either Win32 or POSIX - # threads. It appears that -mthreads should be used in both cases but - # if the model is POSIX then GCC will also link -lpthread by default. - # Use that fact to test which model we have. - # - AC_TRY_LINK([#include <pthread.h>], - [pthread_create(0,0,0,0);], - [threads=posix], - [threads=win32]) - ;; - *) - ACX_PTHREAD - - if test x$acx_pthread_ok = xyes; then - threads=posix - LIBS="$LIBS $PTHREAD_LIBS" - CXXFLAGS="$CXXFLAGS $PTHREAD_CXXFLAGS" - - # Check if we can use the __thread keyword. - # - AC_MSG_CHECKING([for __thread keyword]) - - CXX_LIBTOOL_LINK_IFELSE([ - AC_LANG_SOURCE([ - __thread int tls_var; - - int - main () - { - tls_var = 0; - } - ])], - [threads_thread_keyword=yes]) - - AC_MSG_RESULT([$threads_thread_keyword]) - fi - ;; - esac -fi - -if test x$threads = xcheck; then - AC_MSG_ERROR([thread support not available; use --disable-threads to force single-threaded mode]) -fi -])dnl |