diff options
Diffstat (limited to 'gdbsupport/common.m4')
| -rw-r--r-- | gdbsupport/common.m4 | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/gdbsupport/common.m4 b/gdbsupport/common.m4 index bef3964..6c317ff 100644 --- a/gdbsupport/common.m4 +++ b/gdbsupport/common.m4 @@ -89,10 +89,11 @@ AC_DEFUN([GDB_AC_COMMON], [ no) want_threading=no ;; *) AC_MSG_ERROR([bad value $enableval for threading]) ;; esac], - [want_threading=yes]) + [want_threading=auto]) # Check for std::thread. This does not work on some platforms, like - # mingw and DJGPP. + # mingw using the win32 threads model with gcc older than 13, and + # DJGPP. AC_LANG_PUSH([C++]) AX_PTHREAD([threads=yes], [threads=no]) save_LIBS="$LIBS" @@ -128,10 +129,16 @@ AC_DEFUN([GDB_AC_COMMON], [ LIBS="$save_LIBS" CXXFLAGS="$save_CXXFLAGS" - if test "$want_threading" = "yes"; then + if test "$want_threading" != "no"; then if test "$gdb_cv_cxx_std_thread" = "yes"; then AC_DEFINE(CXX_STD_THREAD, 1, [Define to 1 if std::thread works.]) + else + if test "$want_threading" = "yes"; then + AC_MSG_ERROR([std::thread does not work; disable threading]) + else + AC_MSG_WARN([std::thread does not work; disabling threading]) + fi fi fi AC_LANG_POP |