obs-studio/cmake/Modules/FindJansson.cmake

73 lines
1.9 KiB
CMake

# Once done these will be defined:
#
# JANSSON_FOUND
# JANSSON_INCLUDE_DIRS
# JANSSON_LIBRARIES
# JANSSON_VERSION
find_package(PkgConfig QUIET)
if (PKG_CONFIG_FOUND)
pkg_check_modules(_JANSSON QUIET jansson)
endif()
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
set(_lib_suffix 64)
else()
set(_lib_suffix 32)
endif()
find_path(Jansson_INCLUDE_DIR
NAMES jansson.h
HINTS
ENV JanssonPath${_lib_suffix}
ENV JanssonPath
${_JANSSON_INCLUDE_DIRS}
PATHS
/usr/include /usr/local/include /opt/local/include /sw/include)
find_library(Jansson_LIB
NAMES ${_JANSSON_LIBRARIES} jansson libjansson
HINTS
ENV JanssonPath${_lib_suffix}
ENV JanssonPath
${_JANSSON_LIBRARY_DIRS}
PATHS
/usr/lib /usr/local/lib /opt/local/lib /sw/lib
PATH_SUFFIXES
lib${_lib_suffix} lib
libs${_lib_suffix} libs
bin${_lib_suffix} bin
../lib${_lib_suffix} ../lib
../libs${_lib_suffix} ../libs
../bin${_lib_suffix} ../bin)
if(JANSSON_VERSION)
set(_JANSSON_VERSION_STRING "${JANSSON_VERSION}")
elseif(_JANSSON_FOUND AND _JANSSON_VERSION)
set(_JANSSON_VERSION_STRING "${_JANSSON_VERSION}")
elseif(EXISTS "${Jansson_INCLUDE_DIR}/jansson.h")
file(STRINGS "${Jansson_INCLUDE_DIR}/jansson.h" _jansson_version_parse
REGEX "#define[ \t]+JANSSON_VERSION[ \t]+.+")
string(REGEX REPLACE
".*#define[ \t]+JANSSON_VERSION[ \t]+\"(.+)\".*" "\\1"
_JANSSON_VERSION_STRING "${_jansson_version_parse}")
else()
if(NOT Jansson_FIND_QUIETLY)
message(WARNING "Failed to find Jansson version")
endif()
set(_JANSSON_VERSION_STRING "unknown")
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Jansson
FOUND_VAR JANSSON_FOUND
REQUIRED_VARS Jansson_LIB Jansson_INCLUDE_DIR
VERSION_VAR _JANSSON_VERSION_STRING)
mark_as_advanced(Jansson_INCLUDE_DIR Jansson_LIB)
if(JANSSON_FOUND)
set(JANSSON_INCLUDE_DIRS ${Jansson_INCLUDE_DIR})
set(JANSSON_LIBRARIES ${Jansson_LIB})
set(JANSSON_VERSION ${_JANSSON_VERSION_STRING})
endif()