Index: /issm/trunk-jpl/externalpackages/scipy/install-macosx-snowleopard.sh
===================================================================
--- /issm/trunk-jpl/externalpackages/scipy/install-macosx-snowleopard.sh	(revision 12536)
+++ /issm/trunk-jpl/externalpackages/scipy/install-macosx-snowleopard.sh	(revision 12537)
@@ -8,6 +8,8 @@
 install=2
 
-export CC=/usr/bin/gcc-4.0
-export CXX=/usr/bin/g++-4.0
+# gfortran 4.6 (see ISSM_DIR/externalpackages/gfortran) is necessary for ISSM compilation.
+# On OSX 10.6, this recommended version gets installed in /usr/local/gfortran 
+export CC=/usr/local/gfortran/bin/gcc
+export CXX=/usr/local/gfortran/bin/g++
 
 if [[ $install == "1" ]];then