FreeRDP/cmake/JsonDetect.cmake
2025-04-22 10:20:01 +02:00

65 lines
2.1 KiB
CMake

include(CMakeDependentOption)
option(WITH_JSON_DISABLED "Build without any JSON support" OFF)
cmake_dependent_option(
WITH_CJSON_REQUIRED "Build with cJSON (fail if not found)" OFF "NOT WITH_JSON_DISABLED;NOT WITH_JSONC_REQUIRED" OFF
)
cmake_dependent_option(
WITH_JSONC_REQUIRED "Build with JSON-C (fail if not found)" OFF "NOT WITH_JSON_DISABLED;NOT WITH_CJSON_REQUIRED" OFF
)
if(NOT WITH_JSON_DISABLED)
if(NOT WITH_JSONC_REQUIRED)
find_package(cJSON)
# Fallback detection:
# older ubuntu releases did not ship CMake or pkg-config files
# for cJSON. Be optimistic and try pkg-config and as last resort
# try manual detection
if(NOT CJSON_FOUND)
find_package(PkgConfig)
if(PKG_CONFIG_FOUND)
pkg_check_modules(CJSON libcjson)
endif()
if(NOT CJSON_FOUND)
find_path(CJSON_INCLUDE_DIRS NAMES cjson/cJSON.h)
find_library(CJSON_LIBRARIES NAMES cjson)
if(NOT "${CJSON_LIBRARIES}" STREQUAL "CJSON_LIBRARIES-NOTFOUND" AND NOT "${CJSON_INCLUDE_DIRS}" STREQUAL
"CJSON_INCLUDE_DIRS-NOTFOUND"
)
set(CJSON_FOUND ON)
endif()
endif()
endif()
if(WITH_CJSON_REQUIRED)
if(NOT CJSON_FOUND)
message(FATAL_ERROR "cJSON was requested but not found")
endif()
endif()
else()
unset(CJSON_FOUND)
endif()
if(WITH_JSONC_REQUIRED)
find_package(JSONC REQUIRED)
elseif(NOT WITH_CJSON_REQUIRED)
find_package(JSONC)
endif()
if(WITH_CJSON_REQUIRED)
unset(JSONC_FOUND)
endif()
if(NOT JSONC_FOUND AND NOT CJSON_FOUND)
if(WITH_CJSON_REQUIRED OR WITH_JSONC_REQUIRED)
message(FATAL_ERROR "cJSON (${WITH_CJSON_REQUIRED}) or json-c (${WITH_JSONC_REQUIRED}) required but not found")
endif()
set(WITH_WINPR_JSON OFF CACHE INTERNAL "internal")
message("compiling without JSON support. Install cJSON or json-c to enable")
endif()
else()
set(WITH_WINPR_JSON OFF CACHE INTERNAL "internal")
message("forced compile without JSON support. Set -DWITH_JSON_DISABLED=OFF to enable compile time detection")
endif()