From 4eba05de42587e3efeb2b272569f92b238818238 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Fri, 19 Feb 2010 08:23:31 -0500
Subject: [PATCH] Suppress GNU flag -fPIC on Windows

Commit "Modernize GNU compiler info on Windows" (2009-12-02) reorganized
GNU flags on Windows but let -fPIC slip through for compilation of
objects in shared libraries.  While this flag is valid on most GNU
compiler platforms we need to suppress it in Windows-GNU.cmake just as
we already do in CYGWIN-GNU.cmake.
---
 Modules/Platform/Windows-GNU.cmake | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Modules/Platform/Windows-GNU.cmake b/Modules/Platform/Windows-GNU.cmake
index e5f86d9f3..6d8494073 100644
--- a/Modules/Platform/Windows-GNU.cmake
+++ b/Modules/Platform/Windows-GNU.cmake
@@ -67,6 +67,8 @@ macro(__windows_compiler_gnu lang)
     endforeach(type)
   endif()
 
+  set(CMAKE_SHARED_LIBRARY_${lang}_FLAGS "") # No -fPIC on Windows
+
   # Binary link rules.
   set(CMAKE_${lang}_CREATE_SHARED_MODULE
     "<CMAKE_${lang}_COMPILER> <CMAKE_SHARED_MODULE_${lang}_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_MODULE_CREATE_${lang}_FLAGS> -o <TARGET> ${CMAKE_GNULD_IMAGE_VERSION} <OBJECTS> <LINK_LIBRARIES>")