CMakeLists.txt

CMAKE_MINIMUM_REQUIRED(VERSION 2.6.4 FATAL_ERROR)

if(COMMAND cmake_policy)
    # Works around warnings libraries linked against that don't
    # have absolute paths (e.g. -lpthreads)
    cmake_policy(SET CMP0003 NEW)

    # Works around warnings about escaped quotes in ADD_DEFINITIONS
    # statements.
    cmake_policy(SET CMP0005 OLD)
    
    
    IF(COMMAND cmake_policy)
            IF(${CMAKE_MAJOR_VERSION} GREATER 2)
                # Qt5 qt5_use_modules usage was causing "Policy CMP0043 is not set: Ignore COMPILE_DEFINITIONS_<Config> properties." warnings
                cmake_policy(SET CMP0043 NEW)
            ENDIF()
    ENDIF()

    # disable autolinking to qtmain as we have our own main() functions (new in Qt 5.1)
    if(NOT "${CMAKE_VERSION}" VERSION_LESS 2.8.11)
        cmake_policy(SET CMP0020 OLD)
    endif(NOT "${CMAKE_VERSION}" VERSION_LESS 2.8.11)
endif(COMMAND cmake_policy)

#
# Set up CMake to use Solution Folders in VS.
#
SET_PROPERTY( GLOBAL PROPERTY USE_FOLDERS               ON )
SET_PROPERTY( GLOBAL PROPERTY PREDEFINED_TARGETS_FOLDER "CMake Targets" )

PROJECT(OSGEARTH)

SET(OSGEARTH_MAJOR_VERSION 2)
SET(OSGEARTH_MINOR_VERSION 8)
SET(OSGEARTH_PATCH_VERSION 0)
SET(OSGEARTH_SOVERSION     0)

SET(OSGEARTH_PLUGIN_PREFIX "")

IF (CYGWIN)
    SET(OSGEARTH_PLUGIN_PREFIX "cygwin_")
ENDIF()

IF(MINGW)
    SET(OSGEARTH_PLUGIN_PREFIX "mingw_")
ENDIF()


SET(OSGEARTH_VERSION ${OSGEARTH_MAJOR_VERSION}.${OSGEARTH_MINOR_VERSION}.${OSGEARTH_PATCH_VERSION})


# We want to build SONAMES shared librariess
SET(OSGEARTH_SONAMES TRUE)
SET(OPENTHREADS_SONAMES TRUE)

SET(OpenThreads_SOURCE_DIR ${OSGEARTH_SOURCE_DIR})

# Good place to look for the OSG 3rd party libs
SET(THIRD_PARTY_DIR "" CACHE PATH "OSG 3rd-party dependency folder")

# We have some custom .cmake scripts not in the official distribution.
# Maybe this can be used override existing behavior if needed?
SET(CMAKE_MODULE_PATH "${OSGEARTH_SOURCE_DIR}/CMakeModules;${CMAKE_MODULE_PATH}")

# Attempt to detect the GIT revision number.
OPTION(OSGEARTH_EMBED_GIT_SHA "Embeds the GIT SHA in the version code" OFF)
IF (OSGEARTH_EMBED_GIT_SHA)
  include(GetGitRevisionDescription)
  get_git_head_revision(GIT_REFSPEC OSGEARTH_GIT_SHA1)
ENDIF (OSGEARTH_EMBED_GIT_SHA)

# IPHONE_PORT@tom
# Trying to get CMake to generate an XCode IPhone project, current efforts are to get iphoneos sdk 3.1 working
# Added option which needs manually setting to select the IPhone SDK for building. We can only have one of the below 
# set to true. Should realy have an OSG_BUILD_PLATFORM variable that we set to our desired platform
OPTION(OSG_BUILD_PLATFORM_IPHONE "Enable IPhoneSDK Device support" OFF)
OPTION(OSG_BUILD_PLATFORM_IPHONE_SIMULATOR "Enable IPhoneSDK Simulator support" OFF)
IF(OSG_BUILD_PLATFORM_IPHONE OR OSG_BUILD_PLATFORM_IPHONE_SIMULATOR)
  
  #you need to manually set the default sdk version here
  SET (IPHONE_SDKVER "6.1")
  #the below is taken from ogre, it states the gcc stuff needs to happen before PROJECT() is called. I've no clue if we even need it
  # Force gcc <= 4.2 on iPhone
  include(CMakeForceCompiler)
  CMAKE_FORCE_C_COMPILER(llvm-gcc-4.2 GNU)
  CMAKE_FORCE_CXX_COMPILER(llvm-gcc-4.2 GNU)
  SET(GCC_THUMB_SUPPORT NO)

        #set either the device sdk or the simulator sdk. Can't find away to separate these in the same project
        IF(OSG_BUILD_PLATFORM_IPHONE)
            SET (IPHONE_DEVROOT "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer")
            SET (IPHONE_SDKROOT "${IPHONE_DEVROOT}/SDKs/iPhoneOS${IPHONE_SDKVER}.sdk")
        ELSE()
            SET (IPHONE_DEVROOT "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer")
            SET (IPHONE_SDKROOT "${IPHONE_DEVROOT}/SDKs/iPhoneSimulator${IPHONE_SDKVER}.sdk")
        ENDIF()
ENDIF ()
# IPHONE_PORT@tom

# check if STLport is required
OPTION(USE_STLPORT "Set to ON to build OSGEARTH with stlport instead of the default STL library." OFF)
IF(USE_STLPORT)
	INCLUDE_DIRECTORIES(${STLPORT_DIR}/stlport)
	LINK_DIRECTORIES(${STLPORT_DIR}/lib)
ENDIF()

# Okay, here's the problem: On some platforms, linking against OpenThreads
# is not enough and explicit linking to the underlying thread library
# is also required (e.g. FreeBSD). But OpenThreads may be built with different
# backends (Pthreads, Sproc, Windows) so we don't know what the underlying
# thread library is because some platforms support multiple backends (e.g.
# IRIX supports Sproc and Pthreads). Linking all libraries won't work
# because the libraries may be incompatible.
# So the current solution is to attempt best guess linking and exempt certain
# cases. With IRIX, we're going to hope explicit linking to the underlying
# library is not necessary. We currently don't case for pthreads on Windows
# which might be an issue on things like Cygwin. This may need to be fixed.
FIND_PACKAGE(Threads)
IF(CMAKE_SYSTEM MATCHES IRIX)
    # Erase CMAKE_THREAD_LIBS_INIT and hope it works
    SET(CMAKE_THREAD_LIBS_INIT "" CACHE INTERNAL "")
ENDIF(CMAKE_SYSTEM MATCHES IRIX)

FIND_PACKAGE(OpenGL)

FIND_PACKAGE(CURL)
FIND_PACKAGE(GDAL)
FIND_PACKAGE(GEOS)
FIND_PACKAGE(Sqlite3)
FIND_PACKAGE(ZLIB)
FIND_PACKAGE(Poco)

FIND_PACKAGE(LevelDB)
FIND_PACKAGE(RocksDB)

FIND_PACKAGE(SilverLining QUIET)
FIND_PACKAGE(Triton QUIET)

FIND_PACKAGE(Protobuf QUIET)

# JavaScript Engines:
SET(V8_DIR "" CACHE PATH "set to base V8 install path")
FIND_PACKAGE(V8)

SET (WITH_EXTERNAL_DUKTAPE FALSE CACHE BOOL "Use bundled or system wide version of Duktape")
IF (WITH_EXTERNAL_DUKTAPE)
    FIND_PACKAGE(Duktape)
ENDIF (WITH_EXTERNAL_DUKTAPE)

OPTION(USE_V8 "Use V8 instead of Duktape if V8 is found" OFF)

OPTION(OSGEARTH_USE_QT "Enable to use Qt (build Qt-dependent libraries, plugins and examples)" OFF)
OPTION(OSGEARTH_QT_BUILD_LEGACY_WIDGETS "Build the legacy Qt widgets" OFF)
OPTION(DESIRED_QT_VERSION "The desired Qt version to use")

IF(OSGEARTH_USE_QT)
  # To select a specific version of QT define DESIRED_QT_VERSION
  # via cmake -DDESIRED_QT_VERSION=5
  # QUIET option disables messages if the package cannot be found.
  IF  (DESIRED_QT_VERSION)
      IF  (DESIRED_QT_VERSION MATCHES 5)
          FIND_PACKAGE(Qt5Widgets REQUIRED)
      ELSEIF (DESIRED_QT_VERSION MATCHES 4)
          FIND_PACKAGE(Qt4 REQUIRED)
      ENDIF()
  ELSE()
      FIND_PACKAGE(Qt5Widgets QUIET)
      IF ( NOT Qt5Widgets_FOUND )
          FIND_PACKAGE(Qt4 REQUIRED)
      ENDIF()
  ENDIF()
ENDIF(OSGEARTH_USE_QT)


IF(Qt5Widgets_FOUND)
  FIND_PACKAGE(Qt5Core QUIET)
  FIND_PACKAGE(Qt5Gui QUIET)
  FIND_PACKAGE(Qt5OpenGL QUIET)
  IF ( Qt5Core_FOUND AND Qt5Widgets_FOUND AND Qt5Gui_FOUND AND Qt5OpenGL_FOUND )
    SET(QT_INCLUDES ${Qt5Widgets_INCLUDE_DIRS} ${Qt5OpenGL_INCLUDE_DIRS})
  ENDIF ()
ELSEIF(QT4_FOUND)
  INCLUDE(${QT_USE_FILE})
  SET(QT_INCLUDES ${QT_INCLUDES} ${QT_INCLUDE_DIR} ${QT_QTCORE_INCLUDE_DIR} ${QT_QTGUI_INCLUDE_DIR}${QT_QTOPENGL_INCLUDE_DIR} )
  SET(QT_ALL_LIBRARIES ${QT_LIBRARIES} ${QT_QTCORE_LIBRARY} ${QT_QTWEBKIT_LIBRARY} ${QT_QTNETWORK_LIBRARY} ${QT_QTXML_LIBRARY} ${QT_QTOPENGL_LIBRARY})
ENDIF ()

# option to install shaders:
OPTION(OSGEARTH_INSTALL_SHADERS "Whether to deploy GLSL shaders when doing a Make INSTALL" OFF)

SET (WITH_EXTERNAL_TINYXML FALSE CACHE BOOL "Use bundled or system wide version of TinyXML")
IF (WITH_EXTERNAL_TINYXML)
    FIND_PACKAGE(TinyXML)
ENDIF (WITH_EXTERNAL_TINYXML)

IF(UNIX)
    # Not sure what this will do on Cygwin and Msys
    # Also, remember OS X X11 is a user installed option so it may not exist.
    FIND_PACKAGE(X11)
    # Some Unicies need explicit linkage to the Math library or the build fails.
    FIND_LIBRARY(MATH_LIBRARY m)
ENDIF(UNIX)

# Common global definitions
#ADD_DEFINITIONS(-D)
# Platform specific definitions


IF(WIN32)
  FIND_PACKAGE(GLCORE)
  IF(GLCORE_FOUND)
      INCLUDE_DIRECTORIES( ${GLCORE_INCLUDE_DIR} )
  ENDIF()    

  IF(MSVC)
        # This option is to enable the /MP switch for Visual Studio 2005 and above compilers
        OPTION(WIN32_USE_MP "Set to ON to build osgEarth with the /MP option (Visual Studio 2005 and above)." OFF)
        MARK_AS_ADVANCED(WIN32_USE_MP)
        IF(WIN32_USE_MP)
            SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
        ENDIF(WIN32_USE_MP)

        # turn off various warnings
        # foreach(warning 4244 4251 4267 4275 4290 4786 4305 4996)
        #     SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd${warning}")
        # endforeach(warning)

        # More MSVC specific compilation flags
        ADD_DEFINITIONS(-D_SCL_SECURE_NO_WARNINGS)
        ADD_DEFINITIONS(-D_CRT_SECURE_NO_DEPRECATE)
    ENDIF(MSVC)
ENDIF(WIN32)

########################################################################################################
##### these were settings located in SetupCommon.cmake used in Luigi builds.... find out what are useful
########################################################################################################
#luigi#SET(CMAKE_VERBOSE_MAKEFILE TRUE)
#luigi#SET(CMAKE_SKIP_RPATH TRUE)
#luigi#SET(CMAKE_SKIP_RULE_DEPENDENCY TRUE)
#luigi#IF(UNIX)
#luigi#    LIST_CONTAINS(contains "g++" ${CMAKE_CXX_COMPILER_LIST})
#luigi#    IF (contains)
#luigi#        MESSAGE(${MY_MESSAGE_DEFAULT} "${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} setting  CMAKE_CXX_COMPILER to g++")
#luigi#        SET(CMAKE_CXX_COMPILER "g++")
#luigi#        SET(CMAKE_CXX_COMPILER_LOADED 2)
#luigi#        SET(CMAKE_CXX_COMPILER_WORKS 2)
#luigi#    ENDIF (contains)
#luigi#    SET(CMAKE_CXX_FLAGS_RELEASE "-O2")
#luigi#    SET(CMAKE_CXX_FLAGS_DEBUG "-ggdb -gstabs")
#luigi#ENDIF(UNIX)
########################################################################################################

# Common to all platforms:

SET(CMAKE_DEBUG_POSTFIX  "d" CACHE STRING "add a postfix, usually d on windows")
SET(CMAKE_RELEASE_POSTFIX "" CACHE STRING "add a postfix, usually empty on windows")
SET(CMAKE_RELWITHDEBINFO_POSTFIX "rd" CACHE STRING "add a postfix, usually empty on windows")
SET(CMAKE_MINSIZEREL_POSTFIX "s" CACHE STRING "add a postfix, usually empty on windows")

INCLUDE(OsgEarthMacroUtils)

DETECT_OSG_VERSION()

SET(OPENSCENEGRAPH_VERSION ${OPENSCENEGRAPH_MAJOR_VERSION}.${OPENSCENEGRAPH_MINOR_VERSION}.${OPENSCENEGRAPH_PATCH_VERSION})

FIND_PACKAGE(OSG)

# Make the headers visible to everything
INCLUDE_DIRECTORIES(
    ${OSGEARTH_SOURCE_DIR}/src
    ${OSG_INCLUDE_DIR}
)

#FIND_PACKAGE(GDAL)

################################################################################
# Create bin and lib directories if required

IF("${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")
   FILE(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/bin ${CMAKE_BINARY_DIR}/lib)
ENDIF("${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")


################################################################################
# Installation stuff


IF(UNIX AND NOT WIN32 AND NOT APPLE)
  IF(CMAKE_SIZEOF_VOID_P MATCHES "8")
      SET(LIB_POSTFIX "64" CACHE STRING "suffix for 32/64 dir placement")
      MARK_AS_ADVANCED(LIB_POSTFIX)
  ENDIF(CMAKE_SIZEOF_VOID_P MATCHES "8")
ENDIF(UNIX AND NOT WIN32 AND NOT APPLE)
IF(NOT DEFINED LIB_POSTFIX)
    SET(LIB_POSTFIX "")
ENDIF(NOT DEFINED LIB_POSTFIX)

#SET(OUTPUT_BINDIR ${PROJECT_BINARY_DIR}/bin/${CMAKE_SYSTEM_NAME})
SET(OUTPUT_BINDIR ${PROJECT_BINARY_DIR}/bin)
MAKE_DIRECTORY(${OUTPUT_BINDIR})
SET(EXECUTABLE_OUTPUT_PATH ${OUTPUT_BINDIR})

#SET(OUTPUT_LIBDIR ${PROJECT_BINARY_DIR}/lib/${CMAKE_SYSTEM_NAME})
SET(OUTPUT_LIBDIR ${PROJECT_BINARY_DIR}/lib)
MAKE_DIRECTORY(${OUTPUT_LIBDIR})
SET(LIBRARY_OUTPUT_PATH ${OUTPUT_LIBDIR})

LINK_DIRECTORIES( ${LINK_DIRECTORIES} ${OUTPUT_LIBDIR} )


#SET(INSTALL_BINDIR VIRTUALPLANETBUILDER/bin)
#SET(INSTALL_INCDIR VIRTUALPLANETBUILDER/include)
#SET(INSTALL_LIBDIR VIRTUALPLANETBUILDER/lib)
#SET(INSTALL_DOCDIR VIRTUALPLANETBUILDER/doc)

################################################################################
# User Options


# Expose CMAKE_INCLUDE_PATH and CMAKE_LIBARY_PATH to the GUI so users
# may set these values without needing to manipulate the environment.
SET(CMAKE_INCLUDE_PATH ${CMAKE_INCLUDE_PATH} CACHE STRING "You may add additional search paths here. Use ; to separate multiple paths.")
SET(CMAKE_LIBRARY_PATH ${CMAKE_LIBRARY_PATH} CACHE STRING "You may add additional search paths here. Use ; to separate multiple paths.")
# We are proposing that a new variable called CMAKE_PREFIX_PATH be introduced
# to CMake to compliment CMAKE_INCLUDE_PATH and CMAKE_LIBRARY_PATH.
# A formal feature request has been submited to CMake, Bug #4947.
# It is intended for those users who have common prefixes for their INCLUDE
# and LIBRARY locations. So if users have headers in /usr/local/include
# and libraries in /usr/local/lib, the common prefix is /usr/local.
# It should also cover the case where headers and libraries are
# in the same directory.
# Our proposal expects that FIND_* commands will automatically search for
# CMAKE_PREFIX_PATH right after CMAKE_INCLUDE_PATH or CMAKE_LIBRARY_PATH.
# Obviously, since CMake does not currently support this, we must write
# our Find*.cmake modules to explicitly support this. Otherwise, this variable
# will have no impact.
# This is unofficial so this may be removed or changed at anytime.
SET(CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH} CACHE STRING "(EXPERIMENTAL) You may add additional search paths here. Use ; to separate multiple paths.")

# Dynamic vs Static Linking
OPTION(DYNAMIC_OSGEARTH "Set to ON to build OSGEARTH for dynamic linking.  Use OFF for static." ON)
IF   (DYNAMIC_OSGEARTH)
    SET(OSGEARTH_USER_DEFINED_DYNAMIC_OR_STATIC "SHARED")
ELSE (DYNAMIC_OSGEARTH)
    SET(OSGEARTH_USER_DEFINED_DYNAMIC_OR_STATIC "STATIC")
ENDIF(DYNAMIC_OSGEARTH)

#Whether or not to copy osgEarth to the OSG_DIR during installation
# Dynamic vs Static Linking
OPTION(INSTALL_TO_OSG_DIR "Set to ON to install osgearth to the path defined in the OSG_DIR" OFF)
IF(INSTALL_TO_OSG_DIR)
    SET(OSGEARTH_INSTALL_TO_OSG_DIR TRUE)
ELSE (INSTALL_TO_OSG_DIR)
    SET(OSGEARTH_INSTALL_TO_OSG_DIR FALSE)
ENDIF(INSTALL_TO_OSG_DIR)


# osgEarth Examples
OPTION(BUILD_OSGEARTH_EXAMPLES "Enable to build osgEarth Examples" ON)

# OE Core
ADD_SUBDIRECTORY(src)

# VPB Applications
# OPTION(BUILD_APPLICATIONS "Enable to build OSGEARTH Applications" ON)
# IF   (BUILD_APPLICATIONS)
    # ADD_SUBDIRECTORY(applications)
# ENDIF(BUILD_APPLICATIONS)



# Set defaults for Universal Binaries. We want 32-bit Intel/PPC on 10.4
# and 32/64-bit Intel/PPC on >= 10.5. Anything <= 10.3 doesn't support.
IF(APPLE)

        #Here we check if the user specified IPhone SDK
    IF(OSG_BUILD_PLATFORM_IPHONE OR OSG_BUILD_PLATFORM_IPHONE_SIMULATOR)

        IF(OSG_BUILD_PLATFORM_IPHONE)
            SET(CMAKE_OSX_ARCHITECTURES "armv7" CACHE STRING "Build architectures for iOS" FORCE)
            SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -miphoneos-version-min=4.1 -mno-thumb -arch armv7 -pipe -no-cpp-precomp" CACHE STRING "Flags used by the compiler during all build types." FORCE)
        ELSE()
            #simulator uses i386 architectures
            SET(CMAKE_OSX_ARCHITECTURES "i386" CACHE STRING "Build architectures for iOS Simulator" FORCE)
            SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mno-thumb -arch i386 -pipe -no-cpp-precomp" CACHE STRING "Flags used by the compiler during all build types." FORCE)
        ENDIF()

        #here we set the specific iphone sdk version. We can only set either device or simulator sdk. So if you want both you currently have to have two seperate projects
        SET(CMAKE_OSX_SYSROOT "${IPHONE_SDKROOT}" CACHE STRING "System root for iOS" FORCE)

        #hack, force link to opengles
        set(CMAKE_EXE_LINKER_FLAGS "-framework Foundation -framework OpenGLES")

        #use the IPhone windowing system
        SET(OSG_WINDOWING_SYSTEM "IOS" CACHE STRING "Forced IPhone windowing system on iOS"  FORCE)
        SET(OSG_DEFAULT_IMAGE_PLUGIN_FOR_OSX "imageio" CACHE STRING "Forced imageio default image plugin for iOS" FORCE)

        #I think this or similar will be required for IPhone apps
        #OPTION(OSG_BUILD_APPLICATION_BUNDLES "Enable the building of applications and examples as OSX Bundles" ON)

    ELSE()

        # These are just defaults/recommendations, but how we want to build
        # out of the box. But the user needs to be able to change these options.
        # So we must only set the values the first time CMake is run, or we
        # will overwrite any changes the user sets.
        # FORCE is used because the options are not reflected in the UI otherwise.
        # Seems like a good place to add version specific compiler flags too.
        IF(NOT OSGEARTH_CONFIG_HAS_BEEN_RUN_BEFORE)
            # This is really fragile, but CMake doesn't provide the OS system
            # version information we need. (Darwin versions can be changed
            # independently of OS X versions.)
            # It does look like CMake handles the CMAKE_OSX_SYSROOT automatically.
            IF(EXISTS /Developer/SDKs/10.5.sdk)
                SET(CMAKE_OSX_ARCHITECTURES "ppc;i386;ppc64;x86_64" CACHE STRING "Build architectures for OSX" FORCE)
                SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mmacosx-version-min=10.5 -ftree-vectorize -fvisibility-inlines-hidden" CACHE STRING "Flags used by the compiler during all build types." FORCE)
            ELSE(EXISTS /Developer/SDKs/10.5.sdk)
                IF(EXISTS /Developer/SDKs/MacOSX10.4u.sdk)
                    SET(CMAKE_OSX_ARCHITECTURES "ppc;i386" CACHE STRING "Build architectures for OSX" FORCE)
                    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mmacosx-version-min=10.4 -ftree-vectorize -fvisibility-inlines-hidden" CACHE STRING "Flags used by the compiler during all build types." FORCE)
                ELSE(EXISTS /Developer/SDKs/MacOSX10.4u.sdk)
                    # No Universal Binary support
                    # Should break down further to set the -mmacosx-version-min,
                    # but the SDK detection is too unreliable here.
                ENDIF(EXISTS /Developer/SDKs/MacOSX10.4u.sdk)
            ENDIF(EXISTS /Developer/SDKs/10.5.sdk)
        ENDIF(NOT OSGEARTH_CONFIG_HAS_BEEN_RUN_BEFORE)


        OPTION(OSGEARTH_BUILD_APPLICATION_BUNDLES "Enable the building of applications and examples as OSX Bundles" OFF)
        OPTION(OSGEARTH_BUILD_FRAMEWORKS "Compile frameworks instead of dylibs" OFF)
        SET(OSGEARTH_BUILD_FRAMEWORKS_INSTALL_NAME_DIR "@executable_path/../Frameworks" CACHE STRING "Install name dir for compiled frameworks")

    ENDIF()

ENDIF(APPLE)


# This needs to be run very last so other parts of the scripts can take
# advantage of this.
IF(NOT OSGEARTH_CONFIG_HAS_BEEN_RUN_BEFORE)
    SET(OSGEARTH_CONFIG_HAS_BEEN_RUN_BEFORE 1 CACHE INTERNAL "Flag to track whether this is the first time running CMake or if CMake has been configured before")
ENDIF(NOT OSGEARTH_CONFIG_HAS_BEEN_RUN_BEFORE)


#-----------------------------------------------------------------------------
### uninstall target
#-----------------------------------------------------------------------------
CONFIGURE_FILE(
  "${CMAKE_CURRENT_SOURCE_DIR}/CMakeModules/cmake_uninstall.cmake.in"
  "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
  IMMEDIATE @ONLY)
ADD_CUSTOM_TARGET(uninstall
  "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")



#------------------------------------------------------------------------------
# Docs.
add_subdirectory(docs)



#------------------------------------------------------------------------------
# Packaging setup.

SET(CPACK_PACKAGE_VERSION       ${OSGEARTH_VERSION}       )
SET(CPACK_PACKAGE_VERSION_MAJOR ${OSGEARTH_MAJOR_VERSION} )
SET(CPACK_PACKAGE_VERSION_MINOR ${OSGEARTH_MINOR_VERSION} )
SET(CPACK_PACKAGE_VERSION_PATCH ${OSGEARTH_PATCH_VERSION} )
SET(CPACK_RESOURCE_FILE_LICENSE ${PROJECT_SOURCE_DIR}/LICENSE.txt )
SET(CPACK_MONOLITHIC_INSTALL    1 )                                        # create a single, monolithic package.
    
INCLUDE(CPack)