Index: /issm/trunk-jpl/m4/issm_options.m4
===================================================================
--- /issm/trunk-jpl/m4/issm_options.m4	(revision 19147)
+++ /issm/trunk-jpl/m4/issm_options.m4	(revision 19148)
@@ -531,5 +531,5 @@
 	dnl python specifics
 	if test "x$HAVE_PYTHON" = "xyes"; then
-		AC_MSG_CHECKING(for python version)
+		AC_MSG_CHECKING([for python version])
 		dnl Query Python for its version number.  Getting [:3] seems to be the
 		dnl best way to do this; it's what "site.py" does in the standard library.
@@ -546,5 +546,16 @@
 		fi
 
-		PYTHONINCL=-I$PYTHON_ROOT/include
+		AC_MSG_CHECKING([for python header file Python.h])
+		dnl Python.h mighty be in different locations:
+		if test -f "$PYTHON_ROOT/include/Python.h"; then
+			PYTHONINCL=-I$PYTHON_ROOT/include
+		else if test -f "$PYTHON_ROOT/include/python2.7/Python.h"; then
+			PYTHONINCL=-I$PYTHON_ROOT/include/python2.7
+		else
+			AC_MSG_ERROR([Python.h not found, locate this file and contact ISSM developers]);
+		fi
+		fi
+		AC_MSG_RESULT(found)
+
 		PYTHONLIB="-L$PYTHON_ROOT/lib -lpython$PYTHON_VERSION"
 		PYTHONEXT=.so