Commit: 497c35aa7804edc8f16eeff9e82bb3985275a5bd
Author: Campbell Barton
Date:   Wed Nov 11 22:53:49 2015 +1100
Branches: master
https://developer.blender.org/rB497c35aa7804edc8f16eeff9e82bb3985275a5bd

CMake: don't overwrite C/C++ flags for MSVC

Wasn't possible to define custom build flags.

This does change some of the build flags,
as far as we can tell they aren't important (see D1615).

===================================================================

M       CMakeLists.txt

===================================================================

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1204cd4..26b841f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1274,26 +1274,17 @@ elseif(WIN32)
                set(CMAKE_INSTALL_SYSTEM_RUNTIME_LIBS_SKIP TRUE)
                include(InstallRequiredSystemLibraries)
 
-               set(CMAKE_CXX_FLAGS "/nologo /J /Gd /EHsc /MP" CACHE STRING 
"MSVC MT C++ flags " FORCE)
-               set(CMAKE_C_FLAGS   "/nologo /J /Gd /MP"       CACHE STRING 
"MSVC MT C++ flags " FORCE)
-
-               if(CMAKE_CL_64)
-                       set(CMAKE_CXX_FLAGS_DEBUG "/Od /RTC1 /MTd /Zi /MP" 
CACHE STRING "MSVC MT flags " FORCE)
-               else()
-                       set(CMAKE_CXX_FLAGS_DEBUG "/Od /RTC1 /MTd /ZI /MP" 
CACHE STRING "MSVC MT flags " FORCE)
-               endif()
-               set(CMAKE_CXX_FLAGS_RELEASE "/O2 /Ob2 /MT /MP" CACHE STRING 
"MSVC MT flags " FORCE)
-               set(CMAKE_CXX_FLAGS_MINSIZEREL "/O1 /Ob1 /MT /MP" CACHE STRING 
"MSVC MT flags " FORCE)
-               set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "/O2 /Ob1 /MT /Zi /MP" CACHE 
STRING "MSVC MT flags " FORCE)
-               if(CMAKE_CL_64)
-                       set(CMAKE_C_FLAGS_DEBUG "/Od /RTC1 /MTd /Zi /MP" CACHE 
STRING "MSVC MT flags " FORCE)
-               else()
-                       set(CMAKE_C_FLAGS_DEBUG "/Od /RTC1 /MTd /ZI /MP" CACHE 
STRING "MSVC MT flags " FORCE)
-               endif()
-               set(CMAKE_C_FLAGS_RELEASE "/O2 /Ob2 /MT /MP" CACHE STRING "MSVC 
MT flags " FORCE)
-               set(CMAKE_C_FLAGS_MINSIZEREL "/O1 /Ob1 /MT /MP" CACHE STRING 
"MSVC MT flags " FORCE)
-               set(CMAKE_C_FLAGS_RELWITHDEBINFO "/O2 /Ob1 /MT /Zi /MP" CACHE 
STRING "MSVC MT flags " FORCE)
-
+               set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /nologo /J /Gd /MP 
/EHsc")
+               set(CMAKE_C_FLAGS     "${CMAKE_C_FLAGS} /nologo /J /Gd /MP")
+
+               set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /MTd")
+               set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /MTd")
+               set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /MT")
+               set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /MT")
+               set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} 
/MT")
+               set(CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL} /MT")
+               set(CMAKE_CXX_FLAGS_RELWITHDEBINFO 
"${CMAKE_CXX_FLAGS_RELWITHDEBINFO} /MT")
+               set(CMAKE_C_FLAGS_RELWITHDEBINFO 
"${CMAKE_C_FLAGS_RELWITHDEBINFO} /MT")
 
                set(PLATFORM_LINKFLAGS "/SUBSYSTEM:CONSOLE /STACK:2097152 
/INCREMENTAL:NO /NODEFAULTLIB:msvcrt.lib /NODEFAULTLIB:msvcmrt.lib 
/NODEFAULTLIB:msvcurt.lib /NODEFAULTLIB:msvcrtd.lib")

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