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150 lines
4.8 KiB
150 lines
4.8 KiB
# -*- mode: autoconf -*-
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#
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# AX_HAVE_OPENCL
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#
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# Check for an OpenCL implementation. If CL is found, HAVE_OPENCL is defined
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# and the required CPP and linker flags are included in the output variables
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# "CL_CPPFLAGS" and "CL_LIBS", respectively. If no usable CL implementation is
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# found then "no_cl" is set to "yes" (otherwise it is set to "no").
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#
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# If the header <CL/OpenCL.h> is found, "HAVE_CL_OPENCL_H" is defined. If the
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# header <OpenCL/OpenCL.h> is found, HAVE_OPENCL_OPENCL_H is defined. These
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# preprocessor definitions may not be mutually exclusive.
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#
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# This macro first checks /usr/include and /usr/lib for OpenCL support; if it is not
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# found in those locations, then it checks in the standard installation locations
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# for AMD's (/opt/AMDAPP) and NVIDIA's (/usr/local/cuda) SDKs.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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#
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# As a special exception, the you may copy, distribute and modify the
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# configure scripts that are the output of Autoconf when processing
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# the Macro. You need not follow the terms of the GNU General Public
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# License when using or distributing such scripts.
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#
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AC_DEFUN([AX_HAVE_OPENCL],
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[dnl
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AC_REQUIRE([AC_CANONICAL_HOST])dnl
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AC_ARG_ENABLE([opencl],
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[AS_HELP_STRING([--enable-opencl],
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[use OpenCL])],
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[enable_opencl=$enableval],
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[enable_opencl='no'])
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if test x"$enable_opencl" != xno ; then
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CPPFLAGS_CL=""
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AC_CHECK_HEADERS([CL/cl.h OpenCL/cl.h], [HAVE_CL_H="yes"; break], [HAVE_CL_H="no"])
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if test x"$HAVE_CL_H" = xno ; then
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# check for AMD's SDK
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AC_MSG_CHECKING([for AMD's SDK cl.h])
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if test -d /opt/AMDAPP/include/CL ; then
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HAVE_CL_H="yes"
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AC_DEFINE([HAVE_CL_CL_H])
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CPPFLAGS_CL="-I/opt/AMDAPP/include"
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fi
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AC_MSG_RESULT([$HAVE_CL_H])
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fi
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if test x"$HAVE_CL_H" = xno ; then
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# check for NVIDIA's SDK
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AC_MSG_CHECKING([for NVIDIA's SDK cl.h])
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if test -d /usr/local/cuda/include/CL ; then
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HAVE_CL_H="yes"
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AC_DEFINE([HAVE_CL_CL_H])
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CPPFLAGS_CL="-I/usr/local/cuda/include"
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elif test -d /usr/local/cuda-6.5/include/CL ; then
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HAVE_CL_H="yes"
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AC_DEFINE([HAVE_CL_CL_H])
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CPPFLAGS_CL="-I/usr/local/cuda-6.5/include"
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elif test -d /usr/local/cuda-6.0/include/CL ; then
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HAVE_CL_H="yes"
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AC_DEFINE([HAVE_CL_CL_H])
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CPPFLAGS_CL="-I/usr/local/cuda-6.0/include"
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elif test -d /usr/local/cuda-5.5/include/CL ; then
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HAVE_CL_H="yes"
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AC_DEFINE([HAVE_CL_CL_H])
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CPPFLAGS_CL="-I/usr/local/cuda-5.5/include"
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fi
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AC_MSG_RESULT([$HAVE_CL_H])
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fi
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if test x"$HAVE_CL_H" = xno ; then
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no_cl=yes
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AC_MSG_WARN([no OpenCL headers found])
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CL_ENABLED=false
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CL_VERSION=0
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else
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#
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# First we check for Mac OS X, since OpenCL is standard there
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#
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LIBS_CL="none"
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AC_MSG_CHECKING([for OpenCL library])
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case "$host_os" in
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darwin*) # On Mac OS X we check for installed frameworks
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AX_CHECK_FRAMEWORK([OpenCL], [
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LIBS_CL="-framework OpenCL"
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no_cl=no
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AC_MSG_RESULT(yes)
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CL_ENABLED=true
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CL_VERSION=1
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]
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,
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[
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no_cl=yes
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AC_MSG_RESULT(no)
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CL_ENABLED=false
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CL_VERSION=0
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])
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;;
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*)
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save_LIBS=$LIBS
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save_CFLAGS=$CFLAGS
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CFLAGS=$CPPFLAGS_CL
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LIBS="$save_LIBS -L/usr/lib64/nvidia -L/usr/lib/nvidia -lOpenCL"
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM([
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#ifdef HAVE_OPENCL_CL_H
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#include <OpenCL/cl.h>
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#elif defined(HAVE_CL_CL_H)
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#include <CL/cl.h>
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#endif
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#include <stddef.h>
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],[
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clGetPlatformIDs(0, NULL, NULL);
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])],[
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no_cl=no
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AC_MSG_RESULT(yes)
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CL_ENABLED=true
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CL_VERSION=1
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LIBS_CL="$save_LIBS -L/usr/lib64/nvidia -L/usr/lib/nvidia -lOpenCL"
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],[
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no_cl=yes
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AC_MSG_RESULT(no)
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CL_ENABLED=false
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CL_VERSION=0
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])
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LIBS=$save_LIBS
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CFLAGS=$save_CFLAGS
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;;
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esac
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fi
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else
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no_cl=yes
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AC_MSG_CHECKING([for OpenCL library])
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AC_MSG_RESULT(disabled)
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CL_ENABLED=false
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CL_VERSION=0
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fi
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])
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