minetest/cmake/Modules/FindJson.cmake

# Look for JsonCpp, with fallback to bundeled version

mark_as_advanced(JSON_LIBRARY JSON_INCLUDE_DIR)
option(ENABLE_SYSTEM_JSONCPP "Enable using a system-wide JsonCpp" TRUE)
set(USE_SYSTEM_JSONCPP FALSE)

if(ENABLE_SYSTEM_JSONCPP)
	find_library(JSON_LIBRARY NAMES jsoncpp)
	find_path(JSON_INCLUDE_DIR json/allocator.h PATH_SUFFIXES jsoncpp)

	if(JSON_LIBRARY AND JSON_INCLUDE_DIR)
		message(STATUS "Using JsonCpp provided by system.")
		set(USE_SYSTEM_JSONCPP TRUE)
	endif()
endif()

if(NOT USE_SYSTEM_JSONCPP)
	message(STATUS "Using bundled JsonCpp library.")
	set(JSON_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/lib/jsoncpp)
	set(JSON_LIBRARY jsoncpp)
	add_subdirectory(lib/jsoncpp)
endif()

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Json DEFAULT_MSG JSON_LIBRARY JSON_INCLUDE_DIR)
Set ENABLE_SYSTEM_JSONCPP to TRUE by default 2021-03-05 16:11:55 +01:00			`# Look for JsonCpp, with fallback to bundeled version`
new auto masterserver 2013-02-21 23:00:44 +01:00
Clean up and tweak build system * Combine client and server man pages. * Update unit test options and available databases in man page. * Add `--worldname` to man page. * Fix a bunch of places where `"Minetest"` was used directly instead of `PROJECT_NAME`. * Disable server build by default on all operating systems. * Make `ENABLE_FREETYPE` not fail if FreeType isn't found. * Enable LevelDB, Redis, and FreeType detection by default. * Remove the `VERSION_PATCH_ORIG` hack. * Add option to search for and use system JSONCPP. * Remove broken LuaJIT version detection. * Rename `DISABLE_LUAJIT` to `ENABLE_LUAJIT`. * Rename `minetest_` variables in `version.{h,cpp}` to `g_`. * Clean up style of CMake files. 2015-02-28 00:05:29 +01:00			`mark_as_advanced(JSON_LIBRARY JSON_INCLUDE_DIR)`
Set ENABLE_SYSTEM_JSONCPP to TRUE by default 2021-03-05 16:11:55 +01:00			`option(ENABLE_SYSTEM_JSONCPP "Enable using a system-wide JsonCpp" TRUE)`
			`set(USE_SYSTEM_JSONCPP FALSE)`
new auto masterserver 2013-02-21 23:00:44 +01:00
Clean up and tweak build system * Combine client and server man pages. * Update unit test options and available databases in man page. * Add `--worldname` to man page. * Fix a bunch of places where `"Minetest"` was used directly instead of `PROJECT_NAME`. * Disable server build by default on all operating systems. * Make `ENABLE_FREETYPE` not fail if FreeType isn't found. * Enable LevelDB, Redis, and FreeType detection by default. * Remove the `VERSION_PATCH_ORIG` hack. * Add option to search for and use system JSONCPP. * Remove broken LuaJIT version detection. * Rename `DISABLE_LUAJIT` to `ENABLE_LUAJIT`. * Rename `minetest_` variables in `version.{h,cpp}` to `g_`. * Clean up style of CMake files. 2015-02-28 00:05:29 +01:00			`if(ENABLE_SYSTEM_JSONCPP)`
			`find_library(JSON_LIBRARY NAMES jsoncpp)`
Fix find_path for newer jsoncpp installations The upstream JsonCpp project has renamed the `json/features.h` file to `json/json_features.h`. This patch fixes the JsonCpp installation search by looking for `json/allocator.h` which has not been renamed on newer versions of JsonCpp. Fixes: https://github.com/minetest/minetest/issues/9119 2019-11-16 19:14:24 +01:00			`find_path(JSON_INCLUDE_DIR json/allocator.h PATH_SUFFIXES jsoncpp)`
new auto masterserver 2013-02-21 23:00:44 +01:00
Set ENABLE_SYSTEM_JSONCPP to TRUE by default 2021-03-05 16:11:55 +01:00			`if(JSON_LIBRARY AND JSON_INCLUDE_DIR)`
			`message(STATUS "Using JsonCpp provided by system.")`
			`set(USE_SYSTEM_JSONCPP TRUE)`
Clean up and tweak build system * Combine client and server man pages. * Update unit test options and available databases in man page. * Add `--worldname` to man page. * Fix a bunch of places where `"Minetest"` was used directly instead of `PROJECT_NAME`. * Disable server build by default on all operating systems. * Make `ENABLE_FREETYPE` not fail if FreeType isn't found. * Enable LevelDB, Redis, and FreeType detection by default. * Remove the `VERSION_PATCH_ORIG` hack. * Add option to search for and use system JSONCPP. * Remove broken LuaJIT version detection. * Rename `DISABLE_LUAJIT` to `ENABLE_LUAJIT`. * Rename `minetest_` variables in `version.{h,cpp}` to `g_`. * Clean up style of CMake files. 2015-02-28 00:05:29 +01:00			`endif()`
			`endif()`

Set ENABLE_SYSTEM_JSONCPP to TRUE by default 2021-03-05 16:11:55 +01:00			`if(NOT USE_SYSTEM_JSONCPP)`
			`message(STATUS "Using bundled JsonCpp library.")`
Fix cmake library default build problem since moving to lib/ Also make Lua library check a cmake module 2017-04-07 23:56:02 +02:00			`set(JSON_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/lib/jsoncpp)`
			`set(JSON_LIBRARY jsoncpp)`
			`add_subdirectory(lib/jsoncpp)`
Clean up and tweak build system * Combine client and server man pages. * Update unit test options and available databases in man page. * Add `--worldname` to man page. * Fix a bunch of places where `"Minetest"` was used directly instead of `PROJECT_NAME`. * Disable server build by default on all operating systems. * Make `ENABLE_FREETYPE` not fail if FreeType isn't found. * Enable LevelDB, Redis, and FreeType detection by default. * Remove the `VERSION_PATCH_ORIG` hack. * Add option to search for and use system JSONCPP. * Remove broken LuaJIT version detection. * Rename `DISABLE_LUAJIT` to `ENABLE_LUAJIT`. * Rename `minetest_` variables in `version.{h,cpp}` to `g_`. * Clean up style of CMake files. 2015-02-28 00:05:29 +01:00			`endif()`
Set ENABLE_SYSTEM_JSONCPP to TRUE by default 2021-03-05 16:11:55 +01:00
			`include(FindPackageHandleStandardArgs)`
			`find_package_handle_standard_args(Json DEFAULT_MSG JSON_LIBRARY JSON_INCLUDE_DIR)`