[PATCH] RTEMS thread model configuration

[Sebastian Huber]

The command line to build a GCC for RTEMS contained virtually always a
'--enable-threads'.  This patch helps to avoid this extra configuration
command line parameter and makes the GCC build a bit more user friendly
for RTEMS.

This patch should be applied to GCC 4.9 branch and master.

2014-04-18  Sebastian Huber  <sebastian.huber at embedded-brains.de>

	* config.gcc (*-*-rtems*): Default to 'rtems' thread model.
	Enable selection of 'posix' or no thread model.
---
 gcc/config.gcc | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/gcc/config.gcc b/gcc/config.gcc
index 9b6a5f3..6eefa53 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -791,7 +791,13 @@ case ${target} in
   ;;
 *-*-rtems*)
   case ${enable_threads} in
-    yes) thread_file='rtems' ;;
+    "" | yes | rtems) thread_file='rtems' ;;
+    posix) thread_file='posix' ;;
+    no) ;;
+    *)
+      echo 'Unknown thread configuration for RTEMS'
+      exit 1
+      ;;
   esac
   tmake_file="${tmake_file} t-rtems"
   extra_options="${extra_options} rtems.opt"
-- 
1.8.1.4