[c967f8]: FindGnuTar.cmake Maximize Restore History

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FindGnuTar.cmake    60 lines (55 with data), 2.5 kB

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#
# Copyright (c) 2013, Kornel Benko, <kornel@lyx.org>
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. The name of the author may not be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Try to find the gnu tar command
# Once done this will define
#
# GNUTAR_FOUND
# GNUTAR_EXECUTABLE
#
set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
find_program(GNUTAR_EXECUTABLE NAMES "gtar" "tar")
mark_as_advanced(GNUTAR_EXECUTABLE)
if(GNUTAR_EXECUTABLE)
execute_process(COMMAND ${GNUTAR_EXECUTABLE} --version
OUTPUT_VARIABLE GNUTAR_output
ERROR_VARIABLE GNUTAR_error
RESULT_VARIABLE GNUTAR_result
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(${GNUTAR_result} EQUAL 0)
string(REGEX REPLACE "[\n]+" ";" GNUTAR_version ${GNUTAR_output})
foreach(_l ${GNUTAR_version})
if(_l MATCHES "^tar +\\(GNU +tar\\) +[0-9]")
string(REGEX REPLACE "^tar +\\(GNU +tar\\) +([0-9]\\.[0-9]+)" "\\1" GNUTAR_VERSION_STRING ${_l})
break()
endif()
endforeach()
endif()
endif()
# handle the QUIETLY and REQUIRED arguments and set GNUTAR_FOUND to TRUE if
# all listed variables are TRUE
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(GNUTAR DEFAULT_MSG GNUTAR_EXECUTABLE GNUTAR_VERSION_STRING)
include(CMakeParseArguments)