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FindWebgen.cmake
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FindWebgen.cmake
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#--------------------------------------------------------------------------------
# Copyright (c) 2012-2013, Lars Baehren <[email protected]>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification,
# are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER OR CONTRIBUTORS 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.
#--------------------------------------------------------------------------------
# - Check for the presence of WEBGEN
#
# The following variables are set when WEBGEN is found:
# WEBGEN_FOUND = Set to true, if all components of WEBGEN have been found.
# WEBGEN_INCLUDES = Include path for the header files of WEBGEN
# WEBGEN_LIBRARIES = Link these to use WEBGEN
# WEBGEN_LFLAGS = Linker flags (optional)
if (NOT WEBGEN_FOUND)
if (NOT WEBGEN_ROOT_DIR)
set (WEBGEN_ROOT_DIR ${CMAKE_INSTALL_PREFIX})
endif (NOT WEBGEN_ROOT_DIR)
##_____________________________________________________________________________
## Check for the executable
find_program (WEBGEN_EXECUTABLE webgen
HINTS ${WEBGEN_ROOT_DIR} ${CMAKE_INSTALL_PREFIX}
PATH_SUFFIXES bin
)
##_____________________________________________________________________________
## Extract program version
if (WEBGEN_EXECUTABLE)
## Run webgen to display version number
execute_process(
COMMAND ${WEBGEN_EXECUTABLE} --version
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
RESULT_VARIABLE WEBGEN_RESULT_VARIABLE
OUTPUT_VARIABLE WEBGEN_OUTPUT_VARIABLE
ERROR_VARIABLE WEBGEN_ERROR_VARIABLE
OUTPUT_STRIP_TRAILING_WHITESPACE
)
## Process output in order to extract version number. Webgen returns status 0
## if run successfully.
if (NOT WEBGEN_RESULT_VARIABLE)
string(REGEX REPLACE "webgen " "" WEBGEN_VERSION ${WEBGEN_OUTPUT_VARIABLE})
if (WEBGEN_VERSION)
## Convert string to list of numbers
string (REGEX REPLACE "\\." ";" WEBGEN_VERSION_LIST ${WEBGEN_VERSION})
## Retrieve individual elements in the list
list(GET WEBGEN_VERSION_LIST 0 WEBGEN_VERSION_MAJOR)
list(GET WEBGEN_VERSION_LIST 1 WEBGEN_VERSION_MINOR)
list(GET WEBGEN_VERSION_LIST 2 WEBGEN_VERSION_PATCH)
endif (WEBGEN_VERSION)
endif (NOT WEBGEN_RESULT_VARIABLE)
endif (WEBGEN_EXECUTABLE)
##_____________________________________________________________________________
## Actions taken when all components have been found
if (WEBGEN_EXECUTABLE)
set (WEBGEN_FOUND TRUE)
else (WEBGEN_EXECUTABLE)
set (WEBGEN_FOUND FALSE)
if (NOT WEBGEN_FIND_QUIETLY)
if (NOT WEBGEN_INCLUDES)
message (STATUS "Unable to find Webgen header files!")
endif (NOT WEBGEN_INCLUDES)
if (NOT WEBGEN_LIBRARIES)
message (STATUS "Unable to find Webgen library files!")
endif (NOT WEBGEN_LIBRARIES)
endif (NOT WEBGEN_FIND_QUIETLY)
endif (WEBGEN_EXECUTABLE)
if (WEBGEN_FOUND)
if (NOT WEBGEN_FIND_QUIETLY)
message (STATUS "Found components for Webgen")
message (STATUS "WEBGEN_ROOT_DIR = ${WEBGEN_ROOT_DIR}" )
message (STATUS "WEBGEN_EXECUTABLE = ${WEBGEN_EXECUTABLE}" )
message (STATUS "WEBGEN_VERSION = ${WEBGEN_VERSION}" )
endif (NOT WEBGEN_FIND_QUIETLY)
else (WEBGEN_FOUND)
if (WEBGEN_FIND_REQUIRED)
message (FATAL_ERROR "Could not find Webgen!")
endif (WEBGEN_FIND_REQUIRED)
endif (WEBGEN_FOUND)
##_____________________________________________________________________________
## Mark advanced variables
mark_as_advanced (
WEBGEN_ROOT_DIR
WEBGEN_INCLUDES
WEBGEN_LIBRARIES
)
endif (NOT WEBGEN_FOUND)