New configure --disable-threads-discovery option

(part of commit 7b2813c from Unity-Technologies/bdwgc)

Issue #173 (bdwgc).

* configure.ac (threads-discovery): New AC_ARG_ENABLE.
* configure.ac [$enable_threads_discovery=no]
(GC_NO_THREADS_DISCOVERY): Define macro.

diff --git a/configure.ac b/configure.ac
index 9c28962..f95ddab 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -140,6 +140,14 @@ AC_ARG_ENABLE(thread-local-alloc,
         ;;
     esac])
 
+AC_ARG_ENABLE(threads-discovery,
+    [AC_HELP_STRING([--disable-threads-discovery],
+                    [disable threads discovery in GC])])
+if test "${enable_threads_discovery}" = no; then
+    AC_DEFINE([GC_NO_THREADS_DISCOVERY], 1,
+              [Disable threads discovery in GC.])
+fi
+
 AC_ARG_ENABLE(cplusplus,
     [AC_HELP_STRING([--enable-cplusplus], [install C++ support])])