Fixed local build script

Proper commit checkout for terra.

Check for gcc version (we need 4.9).

MS7/libs/scripts/setup-local-udp.sh

@@ -2,6 +2,9 @@
 
 # Setting up the environment to build everything - download packages, build them, etc.
 
+# Check for gcc version.
+(gcc -v |& egrep "^gcc version 4.9") || (echo "needs gcc 4.9"; exit 1)
+
 # Bolierplate reduction.
 function clonepull {
     git clone $1 $2 || (cd $2 ; git pull) || exit 1
@@ -54,10 +57,14 @@ export GASNET_BIN="$GASNET_ROOT/bin"
 # -- Terra ---------------------------------------------------------------------
 # Terra also unavailable on cluster.
 
-clonepull https://github.com/zdevito/terra.git terra
+git clone https://github.com/zdevito/terra.git terra	# won't pull for a while.
 
 cd terra
 
+# Known good commit.
+git checkout c501af43915
+
+
 make all || exit 1
 cd ..
 
@@ -66,13 +73,15 @@ export TERRA_DIR=$BUILDDIR/terra/release
 # -- Legion --------------------------------------------------------------------
 # We will build Legion by compiling one of the applications.
 
-clonepull [email protected]:SKA-ScienceDataProcessor/legion.git Legion
+git clone [email protected]:SKA-ScienceDataProcessor/legion.git Legion
+cd Legion
+git pull origin master
+git checkout -b master
+cd ..
 
 # Go to Regent place.
 cd Legion/language
 
-sh
-
 # Running the installation, enabling the GASnet.
 # TODO: optionally enable CUDA.
 CONDUIT=udp ./install.py --with-terra=$TERRA_DIR --gasnet || exit 1