Index: /issm/trunk-jpl/packagers/macosx/install.sh
===================================================================
--- /issm/trunk-jpl/packagers/macosx/install.sh	(revision 18407)
+++ /issm/trunk-jpl/packagers/macosx/install.sh	(revision 18408)
@@ -32,5 +32,5 @@
 # Externalpackages
 # {{{
-echo 'Installing external packages...'
+echo "\nInstalling external packages...\n"
 
 cd "$ISSM_DIR/externalpackages/cmake"
@@ -101,10 +101,34 @@
 autoreconf -if &> /dev/null
 
+if [ $? -ne 0 ]; then
+   echo "FAILED TO AUTORECONF!"
+   exit 1;
+fi
+
 echo "Configuring..."
 $ISSM_DIR/configs/config-macosx64-static.sh &> /dev/null
 
+if [ $? -ne 0 ]; then
+   echo "FAILED TO CONFIGURE!"
+   exit 1;
+fi
+
 echo "Building..."
-make $1 &> /dev/null
+if [ -z $1 ]; then
+   make -j$1 &> /dev/null
+else
+   make &> /dev/null
+fi
+
+if [ $? -ne 0 ]; then
+   echo "FAILED TO BUILD!"
+   exit 1;
+fi
 
 echo "Installing..."
 make install &> /dev/null
+
+if [ $? -ne 0 ]; then
+   echo "FAILED TO INSTALL!"
+   exit 1;
+fi