Fixed: #872 NEL: build on Mac OS X

code/nel/CMakeLists.txt

@@ -92,8 +92,13 @@ IF(WITH_3D)
   IF(WITH_DRIVER_OPENGL)
     FIND_PACKAGE(OpenGL)
     IF(NOT WIN32)
+      FIND_PACKAGE(X11)
       FIND_PACKAGE(XF86VidMode)
     ENDIF(NOT WIN32)
+    IF(APPLE)
+      # TODO: remove Carbon as soon as Cocoa Support is stable on Mac
+      FIND_LIBRARY(CARBON NAMES Carbon)
+    ENDIF(APPLE)
   ENDIF(WITH_DRIVER_OPENGL)
 
   IF(WITH_CEGUI)

code/nel/CMakeModules/nel.cmake

@@ -120,7 +120,10 @@ MACRO(NL_SETUP_BUILD)
     IF(WITH_COVERAGE)
       SET(PLATFORM_CFLAGS "-fprofile-arcs -ftest-coverage ${PLATFORM_CFLAGS}")
     ENDIF(WITH_COVERAGE)
-    SET(PLATFORM_LINKFLAGS "${CMAKE_THREAD_LIBS_INIT} -lc -lm -lstdc++ -lrt")
+    SET(PLATFORM_LINKFLAGS "${CMAKE_THREAD_LIBS_INIT} -lc -lm -lstdc++")
+    IF(NOT APPLE)
+      SET(PLATFORM_LINKFLAGS "${PLATFORM_LINKFLAGS} -lrt")
+    ENDIF(NOT APPLE)
     SET(NL_DEBUG_CFLAGS "-DNL_DEBUG -g")
     SET(NL_RELEASE_CFLAGS "-DNL_RELEASE -O6")
     SET(NL_RELEASEDEBUG_CFLAGS "-DNL_RELEASE_DEBUG -g -finline-functions -O3 ")

code/nel/src/3d/driver/opengl/CMakeLists.txt

@@ -25,6 +25,14 @@ IF(WIN32)
     LINK_FLAGS "/NODEFAULTLIB:libcmt")
   ADD_DEFINITIONS(/DDRIVER_OPENGL_EXPORTS)
 ELSE(WIN32)
+  # NOTE: I know, those hardcoded things are evil. But FindOpenGL on Mac simply 
+  # does not look for X11's OpenGL, just for the native one.
+  # TODO: FIXME remove as soon as Cocoa Support is stable on Mac
+  IF(APPLE)
+    INCLUDE_DIRECTORIES("/usr/X11/include")
+    TARGET_LINK_LIBRARIES(${NLDRV_OGL_LIB} ${CARBON} "-L/usr/X11/lib" "-lGL")
+  ENDIF(APPLE)
+  TARGET_LINK_LIBRARIES(${NLDRV_OGL_LIB} ${X11_LIBRARIES})
   IF(XF86VidMode_FOUND)
     INCLUDE_DIRECTORIES(${XF86VidMode_INCLUDE_DIR})
     ADD_DEFINITIONS(${XF86VidMode_DEFINITIONS})

code/nel/src/sound/CMakeLists.txt

@@ -1,5 +1,11 @@
 FILE(GLOB SRC *.cpp *.h)
 
+# TODO: fixes a linking problem for libnelsound.dylib, but does not look like
+# the cleanest way to solve the issue. FIXME!
+IF(APPLE)
+  SET(SRC ${SRC} driver/sound_driver.cpp driver/buffer.cpp)
+ENDIF(APPLE)
+
 IF(NOT WIN32)
   ADD_LIBRARY(nelsound SHARED ${SRC})
 ELSE(NOT WIN32)