Portability: Fix compile errors on MSVC (cmath)

[flightgear.git] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b5acf71509bd2458fd65ec78af7956e632a7d070..c881c32205e0e35b37ada786eac1af5a1cce212a 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,9 +16,6 @@ endif()
 
 project(FlightGear)
 
-# using 10.7 because boost requires libc++ and 10.6 doesn't include it
-set(CMAKE_OSX_DEPLOYMENT_TARGET 10.7)
-
 # We have some custom .cmake scripts not in the official distribution.
 set(CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/CMakeModules;${CMAKE_MODULE_PATH}")
 
@@ -108,8 +105,12 @@ IF(APPLE)
     find_library(COCOA_LIBRARY Cocoa)
     list(APPEND PLATFORM_LIBS ${COCOA_LIBRARY} ${CORESERVICES_LIBRARY})
 
+    # using 10.7 because boost requires libc++ and 10.6 doesn't include it
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mmacosx-version-min=10.7")
 elseif(${CMAKE_SYSTEM_NAME} MATCHES "Linux" OR
        ${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
+    find_package(Threads REQUIRED)
+    
     set(USE_DBUS_DEFAULT 1)
 
     find_package(UDev)
@@ -231,7 +232,6 @@ endif(EVENT_INPUT)
 # check required dependencies
 find_package(Boost   REQUIRED)
 find_package(ZLIB    REQUIRED)
-find_package(Threads REQUIRED)
 find_package(OpenGL  REQUIRED)
 find_package(OpenAL  REQUIRED)
 find_package(OpenSceneGraph 3.2.0 REQUIRED