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# 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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