picrin/cmake/FindREGEX.cmake

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# -*- cmake -*-
#
# FindRegex.cmake: Try to find Regex
#
# Copyright (C) 2014- Yuichi Nishiwaki
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# Copyright (C) 2005-2013 EDF-EADS-Phimeca
#
# This library is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# along with this library. If not, see <http://www.gnu.org/licenses/>.
#
# @author dutka
# @date 2010-02-04 16:44:49 +0100 (Thu, 04 Feb 2010)
#
# - Try to find Regex
# Once done this will define
#
# REGEX_FOUND - System has Regex
# REGEX_INCLUDE_DIR - The Regex include directory
# REGEX_LIBRARIES - The libraries needed to use Regex
# REGEX_DEFINITIONS - Compiler switches required for using Regex
#
#
# ChangeLogs:
#
# 2014/05/07 - Yuichi Nishiwaki
# On Mac, it finds /System/Library/Frameworks/Ruby.framework/Headers/regex.h,
# which was a part of superold version of glibc when POSIX standard didn't exist.
# To avoid this behavior, we call find_path twice, searching /usr/include and
# /usr/local/include first and if nothing was found then searching $PATH in the
# second stage.
#
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IF (REGEX_INCLUDE_DIR AND REGEX_LIBRARIES)
# in cache already
SET(Regex_FIND_QUIETLY TRUE)
ENDIF (REGEX_INCLUDE_DIR AND REGEX_LIBRARIES)
#IF (NOT WIN32)
# # use pkg-config to get the directories and then use these values
# # in the FIND_PATH() and FIND_LIBRARY() calls
# FIND_PACKAGE(PkgConfig)
# PKG_CHECK_MODULES(PC_REGEX regex)
# SET(REGEX_DEFINITIONS ${PC_REGEX_CFLAGS_OTHER})
#ENDIF (NOT WIN32)
FIND_PATH(REGEX_INCLUDE_DIR regex.h
PATHS /usr/include /usr/local/include
NO_DEFAULT_PATH
)
IF (NOT REGEX_INCLUDE_DIR)
FIND_PATH(REGEX_INCLUDE_DIR regex.h
HINTS
${REGEX_INCLUDEDIR}
${PC_LIBXML_INCLUDE_DIRS}
PATH_SUFFIXES regex
)
ENDIF()
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FIND_LIBRARY(REGEX_LIBRARIES NAMES c regex
HINTS
${PC_REGEX_LIBDIR}
${PC_REGEX_LIBRARY_DIRS}
)
INCLUDE(FindPackageHandleStandardArgs)
# handle the QUIETLY and REQUIRED arguments and set REGEX_FOUND to TRUE if
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# all listed variables are TRUE
FIND_PACKAGE_HANDLE_STANDARD_ARGS(Regex DEFAULT_MSG REGEX_LIBRARIES REGEX_INCLUDE_DIR)
MARK_AS_ADVANCED(REGEX_INCLUDE_DIR REGEX_LIBRARIES)