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# - Try to find jansson
# Once done this will define
# JANSSON_FOUND - System has jansson
# JANSSON_INCLUDE_DIRS - The jansson include directories
# JANSSON_LIBRARIES - The libraries needed to use jansson
find_package(PkgConfig QUIET)
pkg_check_modules(PC_JANSSON QUIET jansson)
find_path(JANSSON_INCLUDE_DIR
NAMES jansson.h
HINTS ${PC_JANSSON_INCLUDE_DIRS}
)
find_library(JANSSON_LIBRARY
NAMES jansson
HINTS ${PC_JANSSON_LIBRARY_DIRS}
)
if(JANSSON_INCLUDE_DIR)
set(_version_regex "^#define[ \t]+JANSSON_VERSION[ \t]+\"([^\"]+)\".*")
file(STRINGS "${JANSSON_INCLUDE_DIR}/jansson.h"
JANSSON_VERSION REGEX "${_version_regex}")
string(REGEX REPLACE "${_version_regex}" "\\1"
JANSSON_VERSION "${JANSSON_VERSION}")
unset(_version_regex)
endif()
include(FindPackageHandleStandardArgs)
# handle the QUIETLY and REQUIRED arguments and set JANSSON_FOUND to TRUE
# if all listed variables are TRUE and the requested version matches.
find_package_handle_standard_args(Jansson REQUIRED_VARS
JANSSON_LIBRARY JANSSON_INCLUDE_DIR
VERSION_VAR JANSSON_VERSION)
if(JANSSON_FOUND)
set(JANSSON_LIBRARIES ${JANSSON_LIBRARY})
set(JANSSON_INCLUDE_DIRS ${JANSSON_INCLUDE_DIR})
endif()
mark_as_advanced(JANSSON_INCLUDE_DIR JANSSON_LIBRARY)
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