Merge pull request #102 from BtbN/external_jansson

Add support for external jansson
master
Jim 2014-05-24 08:05:12 -07:00
commit 143882ee71
2 changed files with 77 additions and 1 deletions

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@ -0,0 +1,63 @@
# Once done these will be defined:
#
# JANSSON_FOUND
# JANSSON_INCLUDE_DIRS
# JANSSON_LIBRARIES
# JANSSON_VERSION
#
if(JANSSON_INCLUDE_DIRS AND JANSSON_LIBRARIES)
set(JANSSON_FOUND TRUE)
else()
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
${_JANSSON_INCLUDE_DIRS}
/usr/include /usr/local/include /opt/local/include /sw/include)
find_library(Jansson_LIB
NAMES jansson libjansson
HINTS
${Jansson_INCLUDE_DIR}/../lib
${Jansson_INCLUDE_DIR}/lib${_lib_suffix}
${_JANSSON_LIBRARY_DIRS}
/usr/lib /usr/local/lib /opt/local/lib /sw/lib)
if(JANSSON_VERSION)
set(_JANSSON_VERSION_STRING "${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()
message(WARNING "Failed to find Jansson version")
set(_JANSSON_VERSION_STRING "unknown")
endif()
set(JANSSON_INCLUDE_DIRS ${Jansson_INCLUDE_DIR} CACHE PATH "Jansson include dir")
set(JANSSON_LIBRARIES ${Jansson_LIB} CACHE STRING "Jansson libraries")
set(JANSSON_VERSION "${_JANSSON_VERSION_STRING}" CACHE STRING "Jansson version")
find_package_handle_standard_args(Jansson
FOUND_VAR JANSSON_FOUND
REQUIRED_VARS Jansson_LIB Jansson_INCLUDE_DIR
VERSION_VAR JANSSON_VERSION)
mark_as_advanced(Jansson_INCLUDE_DIR Jansson_LIB)
endif()

15
deps/CMakeLists.txt vendored
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@ -1,4 +1,17 @@
add_subdirectory(w32-pthreads)
add_subdirectory(glad)
add_subdirectory(jansson)
find_package(Jansson 2.5 QUIET)
if(NOT JANSSON_FOUND)
message(STATUS "Jansson >=2.5 not found, building bundled version")
add_subdirectory(jansson)
else()
message(STATUS "Using system Jansson library")
add_library(jansson UNKNOWN IMPORTED)
set_property(TARGET jansson PROPERTY
IMPORTED_LOCATION "${JANSSON_LIBRARIES}"
INTERFACE_INCLUDE_DIRECTORIES "${JANSSON_INCLUDE_DIRS}")
endif()