From 39cad262f24186b1dea0ed5f813c6a28e3ff94f3 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Fri, 3 Feb 2012 10:36:26 -0500
Subject: [PATCH] WIP: Fix CXX/Fortran MODULE flags when enabled before C
 (#12929)

If CXX or Fortran is enabled before C then the values of

  CMAKE_SHARED_MODULE_C_FLAGS
  CMAKE_SHARED_MODULE_CREATE_C_FLAGS

may not be available.  On platforms where MODULE library (plugin) creation
is the same as SHARED library creation initialize the MODULE creation
flags from the SHARED creation flags of the matching language instead of
assuming that C has been enabled first.
---
 Modules/CMakeCXXInformation.cmake     |   14 ++++++++------
 Modules/CMakeFortranInformation.cmake |    8 ++++++++
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/Modules/CMakeCXXInformation.cmake b/Modules/CMakeCXXInformation.cmake
index b97a69c..25abb8c 100644
--- a/Modules/CMakeCXXInformation.cmake
+++ b/Modules/CMakeCXXInformation.cmake
@@ -93,12 +93,6 @@ IF(CMAKE_USER_MAKE_RULES_OVERRIDE_CXX)
 ENDIF()
 
 
-# for most systems a module is the same as a shared library
-# so unless the variable CMAKE_MODULE_EXISTS is set just
-# copy the values from the LIBRARY variables
-IF(NOT CMAKE_MODULE_EXISTS)
-  SET(CMAKE_SHARED_MODULE_CXX_FLAGS ${CMAKE_SHARED_LIBRARY_CXX_FLAGS})
-ENDIF(NOT CMAKE_MODULE_EXISTS)
 # Create a set of shared library variable specific to C++
 # For 90% of the systems, these are the same flags as the C versions
 # so if these are not set just copy the flags from the c version
@@ -158,6 +152,14 @@ IF(NOT CMAKE_INCLUDE_FLAG_SEP_CXX)
   SET(CMAKE_INCLUDE_FLAG_SEP_CXX ${CMAKE_INCLUDE_FLAG_SEP_C})
 ENDIF(NOT CMAKE_INCLUDE_FLAG_SEP_CXX)
 
+# for most systems a module is the same as a shared library
+# so unless the variable CMAKE_MODULE_EXISTS is set just
+# copy the values from the LIBRARY variables
+IF(NOT CMAKE_MODULE_EXISTS)
+  SET(CMAKE_SHARED_MODULE_CXX_FLAGS ${CMAKE_SHARED_LIBRARY_CXX_FLAGS})
+  SET(CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS})
+ENDIF(NOT CMAKE_MODULE_EXISTS)
+
 # repeat for modules
 IF(NOT CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS)
   SET(CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS ${CMAKE_SHARED_MODULE_CREATE_C_FLAGS})
diff --git a/Modules/CMakeFortranInformation.cmake b/Modules/CMakeFortranInformation.cmake
index aed1fd2..76cf34e 100644
--- a/Modules/CMakeFortranInformation.cmake
+++ b/Modules/CMakeFortranInformation.cmake
@@ -109,6 +109,14 @@ IF(NOT DEFINED CMAKE_SHARED_LIBRARY_SONAME_Fortran_FLAG)
   SET(CMAKE_SHARED_LIBRARY_SONAME_Fortran_FLAG ${CMAKE_SHARED_LIBRARY_SONAME_C_FLAG})
 ENDIF()
 
+# for most systems a module is the same as a shared library
+# so unless the variable CMAKE_MODULE_EXISTS is set just
+# copy the values from the LIBRARY variables
+IF(NOT CMAKE_MODULE_EXISTS)
+  SET(CMAKE_SHARED_MODULE_Fortran_FLAGS ${CMAKE_SHARED_LIBRARY_Fortran_FLAGS})
+  SET(CMAKE_SHARED_MODULE_CREATE_Fortran_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_Fortran_FLAGS})
+ENDIF(NOT CMAKE_MODULE_EXISTS)
+
 # repeat for modules
 IF(NOT DEFINED CMAKE_SHARED_MODULE_CREATE_Fortran_FLAGS)
   SET(CMAKE_SHARED_MODULE_CREATE_Fortran_FLAGS ${CMAKE_SHARED_MODULE_CREATE_C_FLAGS})
-- 
1.7.8.msysgit.0