cmake_minimum_required(VERSION 3.10)

project(jlilv VERSION 1.0.0 DESCRIPTION "Java Bindings for Lilv" LANGUAGES C)

#set(CMAKE_CXX_STANDARD 17)
#set(CMAKE_CXX_STANDARD_REQUIRED ON)
#set(CMAKE_CXX_EXTENSIONS OFF)

include(GNUInstallDirs)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR})
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR})
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_BINDIR})

# jvm
find_package(Java REQUIRED)
# https://stackoverflow.com/questions/51047978/cmake-could-not-find-jni
set(JAVA_AWT_LIBRARY NotNeeded)
set(JAVA_JVM_LIBRARY NotNeeded)
find_package(JNI REQUIRED)

include(FindPkgConfig)
if(NOT PKG_CONFIG_FOUND)
  message(FATAL_ERROR "pkg-config not found!" )
endif()

include_directories(${JNI_INCLUDE_DIRS})

# force off-tree build
if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
  message(FATAL_ERROR "CMake generation is not allowed within the source directory!
  Remove the CMakeCache.txt file and try again from another folder, e.g.:
    mkdir build && cd build
    cmake ..
  ")
endif()

# default to Release build
if(NOT CMAKE_BUILD_TYPE)
  set(CMAKE_BUILD_TYPE Release CACHE STRING
      "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel."
      FORCE)
endif()

include_directories(build/generated/sources/headers/java/main/)
add_library(jlilv SHARED src/main/c/Lilv.c)

#target_link_libraries(jlilv ${LILV_LIBRARIES})
#target_include_directories(jlilv PUBLIC ${LILV_INCLUDE_DIRS})
#target_compile_options(jlilv PUBLIC ${LILV_CFLAGS_OTHER})
pkg_check_modules(lilv-0 REQUIRED IMPORTED_TARGET lilv-0)
target_link_libraries(jlilv PkgConfig::lilv-0)