Index: ../trunk-jpl/m4/issm_options.m4
===================================================================
--- ../trunk-jpl/m4/issm_options.m4	(revision 20402)
+++ ../trunk-jpl/m4/issm_options.m4	(revision 20403)
@@ -280,7 +280,6 @@
 	if test "x$HAVE_MATLAB" = "xyes"; then
 
 		AC_DEFINE([_HAVE_MATLAB_],[1],[with matlab in ISSM src])
-  		MATLABINCL="-I$MATLAB_ROOT/extern/include/"
 		
 		dnl 4. get MEXLIB MEXLINK and MEXEXT (experimental) except for windows
 		AC_MSG_CHECKING([matlab's mex compilation flags])
@@ -298,10 +297,12 @@
   				elif test $VENDOR = MSVC-Win64 || test $VENDOR = MSVC-Win64-par; then
   					MEXLIB="-Wl,libmx.lib -Wl,libmex.lib -Wl,libmat.lib ${OSLIBS} -Wl,libf2cblas.lib -Wl,libf2clapack.lib" 
                MEXLINK="-Wl,/LIBPATH:`cygpath -m ${MATLAB_DIR}/extern/lib/win64/microsoft` -Wl,/link -Wl,/EXPORT:mexFunction -Wl,/DLL" 
+  					MATLABINCL="-I`cygpath -m $MATLAB_ROOT/extern/include/`"
 					MEXEXT=".mexw64"
   				fi
   			;;
 		   *)
+           MATLABINCL="-I$MATLAB_ROOT/extern/include/"
            MEXLINK=$($MATLAB_ROOT/bin/mex -v 2>&1 < /dev/null | grep LDFLAGS     | sed -e "s/         LDFLAGS            = //g")
 			  MEXLIB=$( $MATLAB_ROOT/bin/mex -v 2>&1 < /dev/null | grep CXXLIBS     | sed -e "s/         CXXLIBS            = //g")
 		     MEXEXT=$( $MATLAB_ROOT/bin/mex -v 2>&1 < /dev/null | grep LDEXTENSION | sed -e "s/         LDEXTENSION        = //g")