From 351ef7c187e0d29caef23db7add58bf214b42951 Mon Sep 17 00:00:00 2001
From: Bill Hoffman <bill.hoffman@kitware.com>
Date: Wed, 29 Oct 2008 12:24:07 -0400
Subject: [PATCH] ENH: only check for module linkage if f90 is available

---
 Modules/FortranCInterface.cmake | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Modules/FortranCInterface.cmake b/Modules/FortranCInterface.cmake
index 23db5b607..a25e2990d 100644
--- a/Modules/FortranCInterface.cmake
+++ b/Modules/FortranCInterface.cmake
@@ -169,7 +169,10 @@ function(create_fortran_c_interface NAMESPACE FUNCTIONS HEADER)
     set(prefix )
     set(suffix )
     set(found FALSE)
-    discover_fortran_module_mangling(prefix suffix found)
+    # only try this if the compiler is F90 compatible
+    if(CMAKE_Fortran_COMPILER_SUPPORTS_F90)
+      discover_fortran_module_mangling(prefix suffix found)
+    endif(CMAKE_Fortran_COMPILER_SUPPORTS_F90)
     if(found)
       message(STATUS "found Fortran module linkage")
       set(FORTRAN_C_MODULE_PREFIX "${prefix}" CACHE INTERNAL