cmake/FindHTTP_Parser.cmake

   1 # - Try to find http-parser
   2 #
   3 # Defines the following variables:
   4 #
   5 # HTTP_PARSER_FOUND - system has http-parser
   6 # HTTP_PARSER_INCLUDE_DIR - the http-parser include directory
   7 # HTTP_PARSER_LIBRARIES - Link these to use http-parser
   8 # HTTP_PARSER_VERSION_MAJOR - major version
   9 # HTTP_PARSER_VERSION_MINOR - minor version
  10 # HTTP_PARSER_VERSION_STRING - the version of http-parser found
  11
  12 # Find the header and library
  13 FIND_PATH(HTTP_PARSER_INCLUDE_DIR NAMES http_parser.h)
  14 FIND_LIBRARY(HTTP_PARSER_LIBRARY NAMES http_parser libhttp_parser)
  15
  16 # Found the header, read version
  17 if (HTTP_PARSER_INCLUDE_DIR AND EXISTS "${HTTP_PARSER_INCLUDE_DIR}/http_parser.h")
  18         FILE(READ "${HTTP_PARSER_INCLUDE_DIR}/http_parser.h" HTTP_PARSER_H)
  19         IF (HTTP_PARSER_H)
  20                 STRING(REGEX REPLACE ".*#define[\t ]+HTTP_PARSER_VERSION_MAJOR[\t ]+([0-9]+).*" "\\1" HTTP_PARSER_VERSION_MAJOR "${HTTP_PARSER_H}")
  21                 STRING(REGEX REPLACE ".*#define[\t ]+HTTP_PARSER_VERSION_MINOR[\t ]+([0-9]+).*" "\\1" HTTP_PARSER_VERSION_MINOR "${HTTP_PARSER_H}")
  22                 SET(HTTP_PARSER_VERSION_STRING "${HTTP_PARSER_VERSION_MAJOR}.${HTTP_PARSER_VERSION_MINOR}")
  23         ENDIF()
  24         UNSET(HTTP_PARSER_H)
  25 ENDIF()
  26
  27 # Handle the QUIETLY and REQUIRED arguments and set HTTP_PARSER_FOUND
  28 # to TRUE if all listed variables are TRUE
  29 INCLUDE(FindPackageHandleStandardArgs)
  30 FIND_PACKAGE_HANDLE_STANDARD_ARGS(HTTP_Parser REQUIRED_VARS HTTP_PARSER_INCLUDE_DIR HTTP_PARSER_LIBRARY)
  31
  32 # Hide advanced variables
  33 MARK_AS_ADVANCED(HTTP_PARSER_INCLUDE_DIR HTTP_PARSER_LIBRARY)
  34
  35 # Set standard variables
  36 IF (HTTP_PARSER_FOUND)
  37         SET(HTTP_PARSER_LIBRARIES ${HTTP_PARSER_LIBRARY})
  38         set(HTTP_PARSER_INCLUDE_DIRS ${HTTP_PARSER_INCLUDE_DIR})
  39 ENDIF()