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# - Find the native webp library and includes
#
# This module defines
# WEBP_INCLUDE_DIR, where to libwebp headers.
# WEBP_LIBRARIES, the libraries to link against to support webp.
# WEBP_FOUND, If false, do not enable webp export support.
# also defined, but not for general use are
# WEBP_LIBRARY, where to find the webp library.
#=============================================================================
# Copyright 2013 Google Inc.
#=============================================================================
SET(WEBP_FIND_REQUIRED ${WebP_FIND_REQUIRED})
SET(WEBP_FIND_VERSION ${WebP_FIND_VERSION})
SET(WEBP_FIND_VERSION_EXACT ${WebP_FIND_VERSION_EXACT})
SET(WEBP_FIND_QUIETLY ${WebP_FIND_QUIETLY})
include(LibFindMacros)
# Use pkg-config to get hints about paths
libfind_pkg_check_modules(WEBP_PKGCONF libwebp)
find_path(WEBP_INCLUDE_DIR NAMES webp/encode.h HINTS ${WEBP_PKGCONF_INCLUDE_DIRS})
mark_as_advanced(WEBP_INCLUDE_DIR)
set(WEBP_NAMES ${WEBP_NAMES} webp libwebp)
find_library(WEBP_LIBRARY NAMES ${WEBP_NAMES} HINTS ${WEBP_PKGCONF_LIBRARY_DIRS})
mark_as_advanced(WEBP_LIBRARY)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(WEBP DEFAULT_MSG WEBP_LIBRARY WEBP_INCLUDE_DIR)
if(WEBP_FIND_VERSION)
cmake_minimum_required(VERSION 3.4.0)
set(WEBP_FAILED_VERSION_CHECK true)
if(WEBP_FIND_VERSION_EXACT)
if(WEBP_PKGCONF_VERSION VERSION_EQUAL WEBP_FIND_VERSION)
set(WEBP_FAILED_VERSION_CHECK false)
endif()
else()
if(WEBP_PKGCONF_VERSION VERSION_EQUAL WEBP_FIND_VERSION OR
WEBP_PKGCONF_VERSION VERSION_GREATER WEBP_FIND_VERSION)
set(WEBP_FAILED_VERSION_CHECK false)
endif()
endif()
if(WEBP_FAILED_VERSION_CHECK)
if(WEBP_FIND_REQUIRED AND NOT WEBP_FIND_QUIETLY)
if(WEBP_FIND_VERSION_EXACT)
message(FATAL_ERROR "WebP version check failed. Version ${WEBP_PKGCONF_VERSION} was found, version ${WEBP_FIND_VERSION} is needed exactly.")
else(WEBP_FIND_VERSION_EXACT)
message(FATAL_ERROR "WebP version check failed. Version ${WEBP_PKGCONF_VERSION} was found, at least version ${WEBP_FIND_VERSION} is required")
endif(WEBP_FIND_VERSION_EXACT)
endif(WEBP_FIND_REQUIRED AND NOT WEBP_FIND_QUIETLY)
set(WEBP_FOUND false)
endif(WEBP_FAILED_VERSION_CHECK)
endif(WEBP_FIND_VERSION)
IF(WEBP_FOUND)
SET(WebP_LIBRARIES ${WEBP_LIBRARY})
SET(WebP_INCLUDE_DIRS ${WEBP_INCLUDE_DIR})
ENDIF(WEBP_FOUND)
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