ref: 06a021bb7ab5a85975a6e27b7cc5255768df3666
dir: libsamplerate/cmake/FindFLAC.cmake
# - Find FLAC
# Find the native FLAC includes and libraries
#
# FLAC_INCLUDE_DIRS - where to find FLAC headers.
# FLAC_LIBRARIES - List of libraries when using libFLAC.
# FLAC_FOUND - True if libFLAC found.
# FLAC_DEFINITIONS - FLAC compile definitons
if(FLAC_INCLUDE_DIR)
# Already in cache, be silent
set(FLAC_FIND_QUIETLY TRUE)
endif()
find_package(Ogg QUIET)
find_package(PkgConfig QUIET)
pkg_check_modules(PC_FLAC QUIET flac)
set(FLAC_VERSION ${PC_FLAC_VERSION})
find_path(FLAC_INCLUDE_DIR FLAC/stream_decoder.h
HINTS
${PC_FLAC_INCLUDEDIR}
${PC_FLAC_INCLUDE_DIRS}
${FLAC_ROOT})
# MSVC built libraries can name them *_static, which is good as it
# distinguishes import libraries from static libraries with the same extension.
find_library(FLAC_LIBRARY
NAMES
FLAC
libFLAC
libFLAC_dynamic
libFLAC_static
HINTS
${PC_FLAC_LIBDIR}
${PC_FLAC_LIBRARY_DIRS}
${FLAC_ROOT})
# Handle the QUIETLY and REQUIRED arguments and set FLAC_FOUND to TRUE if
# all listed variables are TRUE.
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(FLAC
REQUIRED_VARS
FLAC_LIBRARY
FLAC_INCLUDE_DIR
Ogg_FOUND
VERSION_VAR
FLAC_VERSION)
if(FLAC_FOUND)
set(FLAC_INCLUDE_DIRS ${FLAC_INCLUDE_DIR} ${Ogg_INCLUDE_DIRS})
set(FLAC_LIBRARIES ${FLAC_LIBRARY} ${Ogg_LIBRARIES})
if(NOT TARGET FLAC::FLAC)
add_library(FLAC::FLAC UNKNOWN IMPORTED)
set_target_properties(FLAC::FLAC PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${FLAC_INCLUDE_DIR}"
IMPORTED_LOCATION "${FLAC_LIBRARY}"
INTERFACE_LINK_LIBRARIES Ogg::ogg)
endif()
endif()
mark_as_advanced(FLAC_INCLUDE_DIR FLAC_LIBRARY)