vtk/FindPEGTL.cmake

67 lines
2.0 KiB
CMake
Raw Normal View History

2019-02-23 16:12:39 +00:00
# - Try to find PEGTL lib
#
# This module supports requiring a minimum version, e.g. you can do
# find_package(PEGTL 3.1.2)
# to require version 3.1.2 or newer of PEGTL.
#
# Once done this will define
#
# PEGTL_FOUND - system has eigen lib with correct version
# PEGTL_INCLUDE_DIR - the eigen include directory
# PEGTL_VERSION - eigen version
# Copyright (c) 2006, 2007 Montel Laurent, <montel@kde.org>
# Copyright (c) 2008, 2009 Gael Guennebaud, <g.gael@free.fr>
# Copyright (c) 2009 Benoit Jacob <jacob.benoit.1@gmail.com>
# Redistribution and use is allowed according to the terms of the 2-clause BSD license.
if(NOT PEGTL_FIND_VERSION)
if(NOT PEGTL_FIND_VERSION_MAJOR)
set(PEGTL_FIND_VERSION_MAJOR 2)
endif()
if(NOT PEGTL_FIND_VERSION_MINOR)
set(PEGTL_FIND_VERSION_MINOR 4)
endif()
if(NOT PEGTL_FIND_VERSION_PATCH)
set(PEGTL_FIND_VERSION_PATCH 0)
endif()
set(PEGTL_FIND_VERSION "${PEGTL_FIND_VERSION_MAJOR}.${PEGTL_FIND_VERSION_MINOR}.${PEGTL_FIND_VERSION_PATCH}")
endif()
macro(_pegtl_check_version)
file(READ "${PEGTL_INCLUDE_DIR}/tao/pegtl/version.hpp" _pegtl_version_header)
string(REGEX MATCH "define[ \t]+TAO_PEGTL_VERSION[ \t]+\"([0-9.]+)\"" _pegtl_version_match "${_pegtl_version_header}")
set(PEGTL_VERSION ${CMAKE_MATCH_1})
if(${PEGTL_VERSION} VERSION_LESS ${PEGTL_FIND_VERSION})
set(PEGTL_VERSION_OK FALSE)
else()
set(PEGTL_VERSION_OK TRUE)
endif()
if(NOT PEGTL_VERSION_OK)
message(STATUS "PEGTL version ${PEGTL_VERSION} found in ${PEGTL_INCLUDE_DIR}, "
"but at least version ${PEGTL_FIND_VERSION} is required")
endif()
endmacro()
if (PEGTL_INCLUDE_DIR)
# in cache already
_pegtl_check_version()
set(PEGTL_FOUND ${PEGTL_VERSION_OK})
else ()
find_path(PEGTL_INCLUDE_DIR NAMES tao
PATHS
${CMAKE_INSTALL_PREFIX}/include
)
if(PEGTL_INCLUDE_DIR)
_pegtl_check_version()
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(PEGTL DEFAULT_MSG PEGTL_INCLUDE_DIR PEGTL_VERSION_OK)
mark_as_advanced(PEGTL_INCLUDE_DIR)
endif()