commit 7abf37ed186701f0170bded26df8cbb8a99a21e1
Author: hasufell <hasufell@gentoo.org>
Date:   Wed Jul 31 03:35:46 2013 +0200

    BUILD: add various cmake options
    
    to control building client/server/odalaunch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f49a1e8..ca01bba 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,15 @@ project(Odamex)
 cmake_minimum_required(VERSION 2.8)
 
 # cmake modules
+include( CMakeDependentOption )
 include( GNUInstallDirs )
+
+# options
+option(BUILD_CLIENT "Build client target" 1)
+option(BUILD_SERVER "Build server target" 1)
+option(BUILD_MASTER "Build master server target" 1)
+cmake_dependent_option( BUILD_ODALAUNCH "Build odalaunch target" 1 BUILD_CLIENT 0 )
+cmake_dependent_option( ENABLE_PORTMIDI "Enable portmidi support" 1 BUILD_CLIENT 0 )
 set(PROJECT_VERSION 0.6.4)
 set(PROJECT_COPYRIGHT "2006-2013")
 
@@ -56,10 +64,22 @@ endmacro(define_platform)
 set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules)
 
 # Subdirectories for individual projects
-add_subdirectory(client)
-add_subdirectory(server)
-add_subdirectory(master)
-add_subdirectory(odalaunch)
+if(BUILD_CLIENT)
+	add_subdirectory(client)
+endif()
+if(BUILD_SERVER)
+	add_subdirectory(server)
+endif()
+if(BUILD_MASTER)
+	add_subdirectory(master)
+endif()
+if(BUILD_ODALAUNCH)
+	add_subdirectory(odalaunch)
+endif()
+
+if(NOT BUILD_CLIENT AND NOT BUILD_SERVER AND NOT BUILD_MASTER)
+	message(FATAL_ERROR "No target chosen, doing nothing.")
+endif()
 
 # Disable the ag-odalaunch target completely: -DNO_AG-ODALAUNCH_TARGET
 # This is only really useful when setting up a universal build.
diff --git a/client/CMakeLists.txt b/client/CMakeLists.txt
index 1fde0ff..9f06fa6 100644
--- a/client/CMakeLists.txt
+++ b/client/CMakeLists.txt
@@ -48,7 +48,7 @@ endif()
 
 # PortMidi configuration
 find_package(PortMidi)
-if(PORTMIDI_FOUND)
+if(PORTMIDI_FOUND AND ENABLE_PORTMIDI)
   include_directories(${PORTMIDI_INCLUDE_DIR})
   add_definitions(-DPORTMIDI)
 else()
@@ -95,7 +95,7 @@ if(SDL_FOUND AND SDLMIXER_FOUND)
   target_link_libraries(odamex ${SDL_LIBRARY})
   target_link_libraries(odamex ${SDLMIXER_LIBRARY})
 
-  if(PORTMIDI_FOUND)
+  if(PORTMIDI_FOUND AND ENABLE_PORTMIDI)
     target_link_libraries(odamex ${PORTMIDI_LIBRARIES})
   endif()