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# Copyright (c) 2018 Stefan Seefeld
#
# Use, modification and distribution is subject to the Boost Software
# License Version 1.0. (See accompanying file LICENSE_1_0.txt or
# http://www.boost.org/LICENSE_1_0.txt)
# Supports the opencl library
#
# After 'using opencl', the following targets are available:
#
# /opencl//opencl -- The OpenCL library
import project ;
import ac ;
import errors ;
import feature ;
import "class" : new ;
import targets ;
import modules ;
import property-set ;
header = CL/cl.h ;
names = OpenCL ;
library-id = 0 ;
if --debug-configuration in [ modules.peek : ARGV ]
{
.debug = true ;
}
# Initializes the opencl library.
#
# Options for configuring opencl::
#
# <search>
# The directory containing the OpenCL library.
# <name>
# Overrides the default library name.
# <include>
# The directory containing the OpenCL headers.
#
# Examples::
#
# # Find OpenCL in the default system location
# using opencl ;
# # Find opencl in /usr/local
# using opencl : 1.2.7
# : <include>/usr/local/include <search>/usr/local/lib ;
#
rule init ( version ? : # The opencl version (currently ignored)
options * : # A list of the options to use
requirements * ) # The requirements for the opencl target
{
local caller = [ project.current ] ;
if ! $(.initialized)
{
.initialized = true ;
project.initialize $(__name__) ;
.project = [ project.current ] ;
project opencl ;
}
local library-path = [ feature.get-values <search> : $(options) ] ;
local include-path = [ feature.get-values <include> : $(options) ] ;
local library-name = [ feature.get-values <name> : $(options) ] ;
if ! $(library-path) && ! $(include-path) && ! $(library-name)
{
is-default = true ;
}
condition = [ property-set.create $(requirements) ] ;
condition = [ property-set.create [ $(condition).base ] ] ;
if $(.configured.$(condition))
{
if $(is-default)
{
if $(.debug)
{
ECHO "notice: [opencl] opencl is already configured" ;
}
}
else
{
errors.user-error "opencl is already configured" ;
}
return ;
}
else
{
if $(.debug)
{
ECHO "notice: [opencl] Using pre-installed library" ;
if $(condition)
{
ECHO "notice: [opencl] Condition" [ $(condition).raw ] ;
}
}
local mt = [ new ac-library opencl : $(.project) : $(condition) :
$(include-path) : $(library-path) : $(library-name) ] ;
$(mt).set-header $(header) ;
$(mt).set-default-names $(names) ;
targets.main-target-alternative $(mt) ;
}
.configured.$(condition) = true ;
}
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