project(GLEW)
cmake_minimum_required(VERSION 2.4)

if(COMMAND cmake_policy)
	cmake_policy(SET CMP0003 NEW)
endif(COMMAND cmake_policy)

set(GLEW_VERSION "1.11.0")

set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)

if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
	set(GLEW_LIB_NAME glew32)
else(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
	set(GLEW_LIB_NAME GLEW)
	set(DLL_PREFIX lib)
endif(${CMAKE_SYSTEM_NAME} MATCHES "Windows")

#
# All platforms need OpenGL
#

include(FindPkgConfig)
pkg_check_modules( OpenGL REQUIRED gl )

#
# Linux needs X11
#

if(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
    find_package(X11 REQUIRED)
endif(${CMAKE_SYSTEM_NAME} MATCHES "Linux")

set(CMAKE_C_FLAGS "${CFLAGS} ${CMAKE_C_FLAGS} -DGLEW_BUILD -DGLEW_NO_GLU -O2 -Wall -W" )

include_directories( ${PROJECT_SOURCE_DIR}/include )

add_library(GLEW_static STATIC src/glew.c )
add_library(GLEW_shared SHARED src/glew.c )
set_target_properties(GLEW_static PROPERTIES OUTPUT_NAME ${GLEW_LIB_NAME} PREFIX lib)
set_target_properties(GLEW_shared PROPERTIES OUTPUT_NAME ${GLEW_LIB_NAME} PREFIX "${DLL_PREFIX}")
target_link_libraries(GLEW_shared ${OpenGL_LDFLAGS})

add_library(GLEW_MX_static STATIC src/glew.c )
add_library(GLEW_MX_shared SHARED src/glew.c )
set_target_properties(GLEW_MX_static PROPERTIES OUTPUT_NAME ${GLEW_LIB_NAME}mx COMPILE_FLAGS "-DGLEW_MX" PREFIX lib)
set_target_properties(GLEW_MX_shared PROPERTIES OUTPUT_NAME ${GLEW_LIB_NAME}mx COMPILE_FLAGS "-DGLEW_MX" PREFIX "${DLL_PREFIX}")
target_link_libraries(GLEW_MX_shared ${OpenGL_LDFLAGS})

add_executable(glewinfo src/glewinfo.c)
target_link_libraries(glewinfo GLEW_shared ${OpenGL_LDFLAGS})

if(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
    target_link_libraries(glewinfo ${X11_LIBRARIES})
endif(${CMAKE_SYSTEM_NAME} MATCHES "Linux")

add_executable(visualinfo src/visualinfo.c)
target_link_libraries(visualinfo GLEW_shared ${OpenGL_LDFLAGS})

if(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
    target_link_libraries(visualinfo ${X11_LIBRARIES})
endif(${CMAKE_SYSTEM_NAME} MATCHES "Linux")

install(
	TARGETS
		GLEW_static
		GLEW_shared
		GLEW_MX_static
		GLEW_MX_shared
		glewinfo
		visualinfo
	RUNTIME DESTINATION bin
	LIBRARY DESTINATION lib
	ARCHIVE DESTINATION lib
)

install(CODE "execute_process( COMMAND bash -x -c \"sed -e 's%@prefix@%${CMAKE_INSTALL_PREFIX}%g' -e 's%@exec_prefix@%\\\${prefix}%g' -e 's%@libdir@%\\\${prefix}/lib%g' -e 's%@includedir@%\\\${prefix}/include%g' -e 's/\@version\@/${GLEW_VERSION}/g' -e 's/\@cflags\@//g' -e 's/\@libname\@/${GLEW_LIB_NAME}/g' -e 's|@requireslib@|glu|g' < ${CMAKE_SOURCE_DIR}/glew.pc.in > ${CMAKE_BINARY_DIR}/glew.pc\" )" )
install(CODE "execute_process( COMMAND bash -x -c \"sed -e 's%@prefix@%${CMAKE_INSTALL_PREFIX}%g' -e 's%@exec_prefix@%\\\${prefix}%g' -e 's%@libdir@%\\\${prefix}/lib%g' -e 's%@includedir@%\\\${prefix}/include%g' -e 's/\@version\@/${GLEW_VERSION}/g' -e 's/\@cflags\@/-DGLEW_MX/g' -e 's/\@libname\@/${GLEW_LIB_NAME}mx/g' -e 's|@requireslib@|glu|g' < ${CMAKE_SOURCE_DIR}/glew.pc.in > ${CMAKE_BINARY_DIR}/glewmx.pc\" )" )

install(FILES ${CMAKE_BINARY_DIR}/glew.pc ${CMAKE_BINARY_DIR}/glewmx.pc DESTINATION lib/pkgconfig)