cmake_minimum_required(VERSION 2.6)
project(libresample)
enable_testing()

include(CheckIncludeFiles)
include(CheckTypeSize)
include(FindPkgConfig)

check_type_size("void *" POINTER_SIZE)

if(${POINTER_SIZE} EQUAL 8)
    set(LIBDIR lib64)
elseif(${POINTER_SIZE} EQUAL 4)
    set(LIBDIR lib)
else(${POINTER_SIZE} EQUAL 8)
    message(FATAL_ERROR "pointer size is not 4 bytes or 8 bytes")
endif(${POINTER_SIZE} EQUAL 8)

check_include_files(inttypes.h HAVE_INTTYPES_H)

find_library(HAVE_LIBM m)

pkg_check_modules(SNDFILE sndfile)
pkg_check_modules(SAMPLERATE samplerate)

find_program(DOXYGEN NAMES doxygen)

configure_file(${CMAKE_CURRENT_SOURCE_DIR}/src/configtemplate.h ${CMAKE_CURRENT_BINARY_DIR}/src/config.h)
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libresample.pc.in ${CMAKE_CURRENT_BINARY_DIR}/libresample.pc)

add_library(resample SHARED src/filterkit.c src/resample.c src/resamplesubs.c)
set_target_properties(resample PROPERTIES VERSION 1.0 SOVERSION 1)
install(TARGETS resample LIBRARY DESTINATION ${LIBDIR})
install(FILES include/libresample.h DESTINATION include)

add_executable(testresample tests/testresample.c)
target_link_libraries(testresample resample m)
add_test(testresample testresample)

if(SNDFILE_FOUND)
   add_executable(resample-sndfile tests/resample-sndfile.c)
   target_link_libraries(resample-sndfile resample m)
   set_target_properties(resample-sndfile PROPERTIES COMPILE_FLAGS "${SNDFILE_CFLAGS}" LINK_FLAGS "${SNDFILE_LDFLAGS}")
   install(TARGETS resample-sndfile RUNTIME DESTINATION bin)
endif(SNDFILE_FOUND)

if(SAMPLERATE_FOUND)
   add_executable(compareresample tests/compareresample.c)
   target_link_libraries(compareresample resample m)
   set_target_properties(compareresample PROPERTIES COMPILE_FLAGS "${SAMPLERATE_CFLAGS}" LINK_FLAGS "${SAMPLERATE_LDFLAGS}")
   add_test(compareresample compareresample)
endif(SAMPLERATE_FOUND)

install(FILES libresample.pc DESTINATION ${LIBDIR}/pkgconfig)

if(DOXYGEN)
   add_custom_command(OUTPUT docs/html/index.html COMMAND ${DOXYGEN} docs/Doxyfile DEPENDS include/libresample.h)
   add_custom_target(docs ALL DEPENDS docs/html/index.html)
endif(DOXYGEN)