diff options
| -rw-r--r-- | tool/m4/ruby_thread.m4 | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/tool/m4/ruby_thread.m4 b/tool/m4/ruby_thread.m4 index 6f1e3960b1..3831bc4c06 100644 --- a/tool/m4/ruby_thread.m4 +++ b/tool/m4/ruby_thread.m4 @@ -1,15 +1,20 @@ dnl -*- Autoconf -*- AC_DEFUN([RUBY_THREAD], [ -AS_CASE(["$target_os"], - [mingw*], [ - THREAD_MODEL=win32 - ], - [ - AS_IF([test "$rb_with_pthread" = "yes"], [ - THREAD_MODEL=pthread - ]) - ] -) +AC_ARG_WITH(thread, + AS_HELP_STRING([--with-thread=IMPLEMENTATION], [specify the thread implementation to use]), + [THREAD_MODEL=$withval], [ + THREAD_MODEL= + AS_CASE(["$target_os"], + [mingw*], [ + THREAD_MODEL=win32 + ], + [ + AS_IF([test "$rb_with_pthread" = "yes"], [ + THREAD_MODEL=pthread + ]) + ] + ) +]) AS_CASE(["$THREAD_MODEL"], [pthread], [AC_CHECK_HEADERS(pthread.h)], |