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# - try to find Flagpoll application, and offer package-finding services
# FLAGPOLL, the executable: if not defined, do not try to use Flagpoll.
#
# Useful configuration variables you might want to add to your cache:
# FLAGPOLL_ROOT_DIR - A directory prefix to search for the app
# (a path that contains bin/ as a subdirectory)
#
# VR Juggler requires this package, so this Find script takes that into
# account when determining where to search for the desired files.
# The VJ_BASE_DIR environment variable is searched (preferentially)
# when searching for this package, so most sane VR Juggler build environments
# should "just work." Note that you need to manually re-run CMake if you
# change this environment variable, because it cannot auto-detect this change
# and trigger an automatic re-run.
#
# You can use Flagpoll to provide directories to use as HINTS for find_*
# These are the provided macros:
# flagpoll_get_include_dirs
# flagpoll_get_library_dirs
# flagpoll_get_library_names
# flagpoll_get_extra_libs
# All take the name of the desired package, optionally NO_DEPS to pass --no-deps
# to Flagpoll, and return yourpkgname_FLAGPOLL_INCLUDE_DIRS(etc. for the other
# macros).
#
# Example usage:
# flagpoll_get_include_dirs(vpr NO_DEPS)
# find_path(VPR20_INCLUDE_DIRS vpr/vpr.h
# HINTS ${vpr_FLAGPOLL_INCLUDE_DIRS})
#
# Original Author:
# 2009-2010 Ryan Pavlik <rpavlik@iastate.edu> <abiryan@ryand.net>
# http://academic.cleardefinition.com
# Iowa State University HCI Graduate Program/VRAC
#
# Copyright Iowa State University 2009-2010.
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)
###
# Flagpoll detection
###
set(Flagpoll_FIND_QUIETLY true)
find_program(FLAGPOLL
NAMES
flagpoll
flagpoll.exe
PATHS
"${FLAGPOLL_ROOT_DIR}"
"${VRJUGGLER22_ROOT_DIR}"
PATH_SUFFIXES
bin)
# handle the QUIETLY and REQUIRED arguments and set xxx_FOUND to TRUE if
# all listed variables are TRUE
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Flagpoll DEFAULT_MSG FLAGPOLL)
mark_as_advanced(FLAGPOLL)
###
# Macro for internal use - shared workings between all the public macros below.
###
macro(_flagpoll_get_results _package _arg _flag _output)
if(FLAGPOLL)
# If the CMakeLists that called the flagpoll macro passed NO_DEPS,
# we won't return the results for dependencies
if("${ARGN}" MATCHES "NO_DEPS")
set(_FLAGPOLL_NODEP "--no-deps")
else()
set(_FLAGPOLL_NODEP "")
endif()
# Run flagpoll
execute_process(COMMAND
${FLAGPOLL}
${_package}
${_arg}
${_FLAGPOLL_NODEP}
OUTPUT_VARIABLE
_FLAGPOLL_OUTPUT
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(_FLAGPOLL_OUTPUT)
# Remove -I and /I(or equivalent for other flags
string(REGEX
REPLACE
"[-/]${_flag}"
""
_FLAGPOLL_OUTPUT
${_FLAGPOLL_OUTPUT})
# Remove extra spaces
string(REGEX REPLACE " +" " " _FLAGPOLL_OUTPUT ${_FLAGPOLL_OUTPUT})
# Make a CMake list, standardize paths, and append only what we want to our final list
separate_arguments(_FLAGPOLL_OUTPUT)
foreach(_RESULT ${_FLAGPOLL_OUTPUT})
string(REGEX MATCH "^-" _BAD ${_RESULT})
if(_RESULT AND NOT _BAD)
file(TO_CMAKE_PATH "${_RESULT}" _RESULT_CLEAN)
list(APPEND ${_output} ${_RESULT_CLEAN})
endif()
endforeach()
endif()
endif()
endmacro()
###
# "Public" macros - to use flagpoll to give you HINTS directories when finding things
###
macro(flagpoll_get_include_dirs _package)
# Passing ARGN along so if they specified NO_DEPS we actually do it.
_flagpoll_get_results(${_package}
"--cflags-only-I"
I
${_package}_FLAGPOLL_INCLUDE_DIRS
${ARGN})
endmacro()
macro(flagpoll_get_library_dirs _package)
# Passing ARGN along so if they specified NO_DEPS we actually do it.
_flagpoll_get_results(${_package}
"--libs-only-L"
L
${_package}_FLAGPOLL_LIBRARY_DIRS
${ARGN})
endmacro()
macro(flagpoll_get_library_names _package)
# Passing ARGN along so if they specified NO_DEPS we actually do it.
_flagpoll_get_results(${_package}
"--libs-only-l"
l
${_package}_FLAGPOLL_LIBRARY_NAMES
${ARGN})
endmacro()
macro(flagpoll_get_extra_libs _package)
# Passing ARGN along so if they specified NO_DEPS we actually do it.
_flagpoll_get_results(${_package}
"--get-extra-libs"
l
${_package}_FLAGPOLL_EXTRA_LIBS
${ARGN})
endmacro()
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