Add multiprocess compilation flags for Visual Studio

shehzan10 · shehzan10 · commit 8405d5db6fdd · 2015-12-10T22:31:38.000-05:00
* MP adds multiprocess compilation
* Gm- disables minimal rebuild (this options was being used by default before)
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -145,6 +145,13 @@ IF(UNIX)
     ENDIF()
 ELSE(${UNIX}) #Windows
     ADD_DEFINITIONS(-DOS_WIN -DNOMINMAX)
+    IF(MSVC)
+        # MP is multiprocess compilation. Gm- disables minimal rebuilds
+        # http://stackoverflow.com/questions/6172205/how-can-i-do-a-parallel-build-in-visual-studio-2010vvvvvvvv
+        # http://www.kitware.com/blog/home/post/434
+        SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP /Gm-")
+        SET(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} /MP /Gm-")
+    ENDIF(MSVC)
 ENDIF()
 
 # Architechture Definitions
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
@@ -33,8 +33,8 @@ ENDIF()
 IF(WIN32)
     # Deprecated Errors are Warning 4996 on VS2013.
     # https://msdn.microsoft.com/en-us/library/ttcz0bys.aspx
-    SET(CMAKE_CXX_FLAGS "/we4996")
-    SET(CMAKE_C_FLAGS   "/we4996")
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /we4996")
+    SET(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} /we4996")
 ELSE(WIN32)
     SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror=deprecated-declarations")
     SET(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} -Werror=deprecated-declarations")
