diff options
Diffstat (limited to 'libstdc++-v3/acinclude.m4')
| -rw-r--r-- | libstdc++-v3/acinclude.m4 | 42 |
1 files changed, 6 insertions, 36 deletions
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4 index 633b954ad4c..12e3c79f599 100644 --- a/libstdc++-v3/acinclude.m4 +++ b/libstdc++-v3/acinclude.m4 @@ -1200,39 +1200,9 @@ dnl Default is no threads, which also disables _IO_MTSAFE_IO in dnl libio. Any actual thread package will enable it. dnl AC_DEFUN(GLIBCPP_ENABLE_THREADS, [ - dnl Note this comes from the gcc/config.in and libjava/config.in - dnl Efforts should be made to keep this in sync. - AC_MSG_CHECKING([for threads package to use]) - AC_ARG_ENABLE(threads, - [ --enable-threads enable thread usage for target GCC. - --enable-threads=LIB use LIB thread package for target GCC. [default=no] - ], - if test x$enable_threads = xno; then - enable_threads='' - fi, - enable_threads='') - - enable_threads_flag=$enable_threads - - dnl Check if a valid thread package - case x${enable_threads_flag} in - x | xno | xnone) - # No threads - target_thread_file='single' - ;; - xyes) - # default - target_thread_file='posix' - ;; - xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \ - xsolaris | xwin32 | xdce | xvxworks) - target_thread_file=$enable_threads_flag - ;; - *) - echo "$enable_threads is an unknown thread package" 1>&2 - exit 1 - ;; - esac + AC_MSG_CHECKING([for thread model used by GCC]) + target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'` + AC_MSG_RESULT([$target_thread_file]) dnl Check for thread package actually supported in libstdc++ THREADH= @@ -1244,13 +1214,13 @@ AC_DEFUN(GLIBCPP_ENABLE_THREADS, [ THREADH=threads-posix.h ;; decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks) - AC_MSG_ERROR(thread package $THREADS not yet supported) + AC_MSG_WARN(disabling unsupported thread package $target_thread_file) + THREADH=threads-no.h ;; *) - AC_MSG_ERROR($THREADS is an unsupported/unknown thread package) + AC_MSG_ERROR($target_thread_file: unsupported/unknown thread package) ;; esac - AC_MSG_RESULT($THREADH) AC_LINK_FILES(config/$THREADH, include/bits/c++threads.h) if test $THREADH != threads-no.h; then |
