cmake/FindLibWebSockets.cmake

#
# Licensed to the Apache Software Foundation (ASF) under one
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# to you under the Apache License, Version 2.0 (the
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#
#   http://www.apache.org/licenses/LICENSE-2.0
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# under the License.
#

# Find libwebsockets include dirs and libraries.
#
# Sets the following variables:
#
#   LIBWEBSOCKETS_FOUND            - True if headers and requested libraries were found
#   LIBWEBSOCKETS_INCLUDE_DIRS     - LibWebSockets include directories
#   LIBWEBSOCKETS_LIBRARIES        - Link these to use libwebsockets.
#
# This module reads hints about search locations from variables::
#   LIBWEBSOCKETS_LIBRARYDIR       - Preferred library directory e.g. <prefix>/lib
#   LIBWEBSOCKETS_ROOT             - Preferred installation prefix
#   CMAKE_INSTALL_PREFIX           - Install location for the current project.
#   LIBWEBSOCKETS_INCLUDEDIR       - Preferred include directory e.g. <prefix>/include

find_library(LIBWEBSOCKETS_LIBRARIES
  NAMES websockets libwebsockets
  HINTS ${LIBWEBSOCKETS_LIBRARYDIR} ${LIBWEBSOCKETS_ROOT}  ${CMAKE_INSTALL_PREFIX}
  )

find_path(LIBWEBSOCKETS_INCLUDE_DIRS
  NAMES libwebsockets.h
  HINTS ${LIBWEBSOCKETS_INCLUDEDIR} ${LIBWEBSOCKETS_ROOT}/include ${CMAKE_INSTALL_PREFIX}/include
  PATHS /usr/include
  )

include(FindPackageHandleStandardArgs)

find_package_handle_standard_args(
  LIBWEBSOCKETS DEFAULT_MSG LIBWEBSOCKETS_LIBRARIES LIBWEBSOCKETS_INCLUDE_DIRS)

if(NOT LIBWEBSOCKETS_FOUND)
  unset(LIBWEBSOCKETS_LIBRARIES)
  unset(LIBWEBSOCKETS_INCLUDE_DIRS)
endif()