servatrice's CMakeLists.txt: major overhaul

* Remove cockatrice_HEADERS (obsoleted by automoc)
* Remove compilation flags definition and Qt4 finding calls
* Make use of CMAKE_INSTALL_PREFIX
* use INSTALL(TARGETS) in place of INSTALL(PROGRAM)
* Osx: create a proper application bundle
* Added comments

servatrice/CMakeLists.txt

-CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
-SET(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR})
+# CMakeLists for servatrice directory
+#
+# provides the servatrice binary
+
 PROJECT(servatrice)
 
-# cmake modules
-include(GNUInstallDirs)
+# cmake module for libgcrypt is included in current directory
+SET(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR})
+FIND_PACKAGE(Libgcrypt REQUIRED)
 
 SET(servatrice_SOURCES
  src/main.cpp
  src/passwordhasher.cpp
- src/servatrice.cpp 
+ src/servatrice.cpp
  src/servatrice_connection_pool.cpp
  src/servatrice_database_interface.cpp
- src/server_logger.cpp 
- src/serversocketinterface.cpp 
+ src/server_logger.cpp
+ src/serversocketinterface.cpp
  src/isl_interface.cpp
  ${CMAKE_CURRENT_BINARY_DIR}/version_string.cpp
 )
-SET(servatrice_HEADERS
- src/servatrice.h 
- src/servatrice_connection_pool.h
- src/servatrice_database_interface.h
- src/server_logger.h 
- src/serversocketinterface.h 
- src/isl_interface.h
-)
 
 SET(QT_DONTUSE_QTGUI)
 SET(QT_USE_QTNETWORK TRUE)
 SET(QT_USE_QTSQL TRUE)
-FIND_PACKAGE(Qt4 REQUIRED)
-FIND_PACKAGE(Protobuf REQUIRED)
-FIND_PACKAGE(Libgcrypt REQUIRED)
-FIND_PACKAGE(Threads)
-
-#set(CMAKE_BUILD_TYPE Release)
-set(CMAKE_CXX_FLAGS_DEBUG "-ggdb -O2")
-set(CMAKE_CXX_FLAGS_RELEASE "-O2")
-
-QT4_WRAP_CPP(servatrice_HEADERS_MOC ${servatrice_HEADERS})
 
+# Include directories
 INCLUDE(${QT_USE_FILE})
 INCLUDE_DIRECTORIES(../common)
 INCLUDE_DIRECTORIES(${LIBGCRYPT_INCLUDE_DIR})
@@ -46,7 +32,8 @@ INCLUDE_DIRECTORIES(${PROTOBUF_INCLUDE_DIR})
 INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR}/../common)
 INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR})
 
-ADD_EXECUTABLE(servatrice ${servatrice_SOURCES} ${servatrice_HEADERS_MOC})
+# Build servatrice binary and link it
+ADD_EXECUTABLE(servatrice MACOSX_BUNDLE ${servatrice_SOURCES} ${servatrice_MOC_SRCS})
 TARGET_LINK_LIBRARIES(servatrice cockatrice_common ${QT_LIBRARIES} ${LIBGCRYPT_LIBRARY} ${CMAKE_THREAD_LIBS_INIT})
 
 #add_custom_target(versionheader ALL DEPENDS version_header)
@@ -56,4 +43,42 @@ add_custom_command(
 )
 
 # install rules
-INSTALL(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/servatrice DESTINATION ${CMAKE_INSTALL_BINDIR})
+if(UNIX)
+  if(APPLE)
+    INSTALL(TARGETS servatrice BUNDLE DESTINATION ${CMAKE_INSTALL_PREFIX})
+  else()
+    # Assume linux
+    INSTALL(TARGETS servatrice RUNTIME DESTINATION ${CMAKE_INSTALL_PREFIX}/bin)
+  endif()
+elseif(WIN32)
+  INSTALL(TARGETS servatrice RUNTIME DESTINATION ${CMAKE_INSTALL_PREFIX})
+endif()
+
+if(APPLE)
+  set(plugin_dest_dir ${CMAKE_INSTALL_PREFIX}/servatrice.app/Contents/Plugins)
+  set(qtconf_dest_dir ${CMAKE_INSTALL_PREFIX}/servatrice.app/Contents/Resources)
+
+  # note: no codecs in qt5
+  # note: phonon_backend => mediaservice
+  # note: needs platform on osx
+
+  if (CMAKE_BUILD_TYPE STREQUAL "Debug")
+    install(DIRECTORY "${QT_PLUGINS_DIR}/" DESTINATION ${plugin_dest_dir} COMPONENT Runtime
+      FILES_MATCHING REGEX "(codecs|iconengines|imageformats|mediaservice|phonon_backend|platforms)/.*_debug\\.dylib")
+  else()
+    install(DIRECTORY "${QT_PLUGINS_DIR}/" DESTINATION ${plugin_dest_dir} COMPONENT Runtime
+      FILES_MATCHING REGEX "(codecs|iconengines|imageformats|mediaservice|phonon_backend|platforms)/[^_]*\\.dylib")
+  endif()
+
+  install(CODE "
+      file(WRITE \"${qtconf_dest_dir}/qt.conf\" \"[Paths]
+Plugins = Plugins\")
+      " COMPONENT Runtime)
+
+  install(CODE "
+      file(GLOB_RECURSE QTPLUGINS
+        \"${plugin_dest_dir}/*.dylib\")
+      include(BundleUtilities)
+      fixup_bundle(\"${CMAKE_INSTALL_PREFIX}/servatrice.app\" \"\${QTPLUGINS}\" \"${QT_LIBRARY_DIR}\")
+      " COMPONENT Runtime)
+endif()