thodg/libgit2/deps/pcre/cmake/FindPackageHandleStandardArgs.cmake

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• Hash : 9ceafb57
  Author :
  Date : 2019-01-12T22:55:31
  

  regexec: use pcre as our fallback/builtin regex
  
  Use PCRE 8.42 as the builtin regex implementation, using its POSIX
  compatibility layer.  PCRE uses ASCII by default and the users locale
  will not influence its behavior, so its `regcomp` implementation is
  similar to `regcomp_l` with a C locale.
  

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• deps/pcre/cmake/FindPackageHandleStandardArgs.cmake

• # FIND_PACKAGE_HANDLE_STANDARD_ARGS(NAME (DEFAULT_MSG|"Custom failure message") VAR1 ... )
  #    This macro is intended to be used in FindXXX.cmake modules files.
  #    It handles the REQUIRED and QUIET argument to FIND_PACKAGE() and
  #    it also sets the <UPPERCASED_NAME>_FOUND variable.
  #    The package is found if all variables listed are TRUE.
  #    Example:
  #
  #    FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibXml2 DEFAULT_MSG LIBXML2_LIBRARIES LIBXML2_INCLUDE_DIR)
  #
  #    LibXml2 is considered to be found, if both LIBXML2_LIBRARIES and 
  #    LIBXML2_INCLUDE_DIR are valid. Then also LIBXML2_FOUND is set to TRUE.
  #    If it is not found and REQUIRED was used, it fails with FATAL_ERROR, 
  #    independent whether QUIET was used or not.
  #    If it is found, the location is reported using the VAR1 argument, so 
  #    here a message "Found LibXml2: /usr/lib/libxml2.so" will be printed out.
  #    If the second argument is DEFAULT_MSG, the message in the failure case will 
  #    be "Could NOT find LibXml2", if you don't like this message you can specify
  #    your own custom failure message there.
  
  MACRO(FIND_PACKAGE_HANDLE_STANDARD_ARGS _NAME _FAIL_MSG _VAR1 )
  
    IF("${_FAIL_MSG}" STREQUAL "DEFAULT_MSG")
      IF (${_NAME}_FIND_REQUIRED)
        SET(_FAIL_MESSAGE "Could not find REQUIRED package ${_NAME}")
      ELSE (${_NAME}_FIND_REQUIRED)
        SET(_FAIL_MESSAGE "Could not find OPTIONAL package ${_NAME}")
      ENDIF (${_NAME}_FIND_REQUIRED)
    ELSE("${_FAIL_MSG}" STREQUAL "DEFAULT_MSG")
      SET(_FAIL_MESSAGE "${_FAIL_MSG}")
    ENDIF("${_FAIL_MSG}" STREQUAL "DEFAULT_MSG")
  
    STRING(TOUPPER ${_NAME} _NAME_UPPER)
  
    SET(${_NAME_UPPER}_FOUND TRUE)
    IF(NOT ${_VAR1})
      SET(${_NAME_UPPER}_FOUND FALSE)
    ENDIF(NOT ${_VAR1})
  
    FOREACH(_CURRENT_VAR ${ARGN})
      IF(NOT ${_CURRENT_VAR})
        SET(${_NAME_UPPER}_FOUND FALSE)
      ENDIF(NOT ${_CURRENT_VAR})
    ENDFOREACH(_CURRENT_VAR)
  
    IF (${_NAME_UPPER}_FOUND)
      IF (NOT ${_NAME}_FIND_QUIETLY)
          MESSAGE(STATUS "Found ${_NAME}: ${${_VAR1}}")
      ENDIF (NOT ${_NAME}_FIND_QUIETLY)
    ELSE (${_NAME_UPPER}_FOUND)
      IF (${_NAME}_FIND_REQUIRED)
          MESSAGE(FATAL_ERROR "${_FAIL_MESSAGE}")
      ELSE (${_NAME}_FIND_REQUIRED)
        IF (NOT ${_NAME}_FIND_QUIETLY)
          MESSAGE(STATUS "${_FAIL_MESSAGE}")
        ENDIF (NOT ${_NAME}_FIND_QUIETLY)
      ENDIF (${_NAME}_FIND_REQUIRED)
    ENDIF (${_NAME_UPPER}_FOUND)
  ENDMACRO(FIND_PACKAGE_HANDLE_STANDARD_ARGS)
  

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