| # -*- mode: autoconf -*- |
| # |
| # AX_OPENCL |
| # |
| # Check for an OpenCL implementation. If CL is found, _OPENCL is defined and |
| # the required compiler and linker flags are included in the output variables |
| # "CL_CFLAGS" and "CL_LIBS", respectively. If no usable CL implementation is |
| # found, "no_cl" is set to "yes". |
| # |
| # If the header "CL/OpenCL.h" is found, "HAVE_CL_OPENCL_H" is defined. If the |
| # header "OpenCL/OpenCL.h" is found, HAVE_OPENCL_OPENCL_H is defined. These |
| # preprocessor definitions may not be mutually exclusive. |
| # |
| # Based on AX_CHECK_GL, version: 2.4 author: Braden McDaniel |
| # <braden@endoframe.com> |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2, or (at your option) |
| # any later version. |
| # |
| # This program 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 General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; if not, write to the Free Software |
| # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| # 02110-1301, USA. |
| # |
| # As a special exception, the you may copy, distribute and modify the |
| # configure scripts that are the output of Autoconf when processing |
| # the Macro. You need not follow the terms of the GNU General Public |
| # License when using or distributing such scripts. |
| # |
| AC_DEFUN([AX_OPENCL], |
| [AC_REQUIRE([AC_CANONICAL_HOST])dnl |
| AC_REQUIRE([AC_PROG_SED])dnl |
| AC_REQUIRE([ACX_PTHREAD])dnl |
| |
| AC_ARG_ENABLE([opencl], |
| [AC_HELP_STRING([--enable-opencl], |
| [enable OpenCL support])], |
| [enable_opencl=$enableval], |
| [enable_opencl='no']) |
| |
| if test "$enable_opencl" = 'yes'; then |
| AC_LANG_PUSH([$1]) |
| AX_LANG_COMPILER_MS |
| AS_IF([test X$ax_compiler_ms = Xno], |
| [CL_CFLAGS="${PTHREAD_CFLAGS}"; CL_LIBS="${PTHREAD_LIBS} -lm"]) |
| |
| ax_save_CPPFLAGS=$CPPFLAGS |
| ax_save_CL_CFLAGS=$CL_CFLAGS |
| |
| found_opencl_header='no' |
| CPPFLAGS="$CL_CFLAGS $CPPFLAGS" |
| AC_CHECK_HEADERS([CL/cl.h OpenCL/cl.h], |
| [found_opencl_header='yes' |
| break;], |
| [found_opencl_header='no']) |
| |
| AS_IF([test X$found_opencl_header = Xno], |
| [AS_UNSET([ac_cv_header_CL_cl_h]) |
| AS_UNSET([ac_cv_header_OpenCL_cl_h]) |
| CL_CFLAGS="-I$AMDAPPSDKROOT/include" |
| CPPFLAGS="$ax_save_CPPFLAGS $CL_CFLAGS" |
| AC_CHECK_HEADERS([CL/cl.h OpenCL/cl.h], |
| [found_opencl_header='yes' |
| break;], |
| [found_opencl_header='no']) |
| ], |
| []) |
| |
| CPPFLAGS="$ax_save_CPPFLAGS" |
| |
| AC_CHECK_HEADERS([windows.h]) |
| |
| m4_define([AX_OPENCL_PROGRAM], |
| [AC_LANG_PROGRAM([[ |
| # if defined(HAVE_WINDOWS_H) && defined(_WIN32) |
| # include <windows.h> |
| # endif |
| # ifdef HAVE_CL_CL_H |
| # include <CL/cl.h> |
| # elif defined(HAVE_OPENCL_CL_H) |
| # include <OpenCL/cl.h> |
| # else |
| # error no CL.h |
| # endif]], |
| [[clCreateContextFromType(0,0,0,0,0)]])]) |
| |
| AC_CACHE_CHECK([for OpenCL library], [ax_cv_check_cl_libcl], |
| [ax_cv_check_cl_libcl=no |
| case $host_cpu in |
| x86_64) ax_check_cl_libdir=lib64 |
| ax_check_cl_amd_libdir=x86_64 |
| ;; |
| *) ax_check_cl_libdir=lib |
| ax_check_cl_amd_libdir=x86 |
| ;; |
| esac |
| ax_save_CPPFLAGS=$CPPFLAGS |
| CPPFLAGS="$CL_CFLAGS $CPPFLAGS" |
| ax_save_LIBS=$LIBS |
| LIBS="" |
| ax_check_libs="-lOpenCL -lCL -lclparser" |
| for ax_lib in $ax_check_libs; do |
| AS_IF([test X$ax_compiler_ms = Xyes], |
| [ax_try_lib=`echo $ax_lib | $SED -e 's/^-l//' -e 's/$/.lib/'`], |
| [ax_try_lib=$ax_lib]) |
| LIBS="$ax_try_lib $CL_LIBS $ax_save_LIBS" |
| AC_LINK_IFELSE([AX_OPENCL_PROGRAM], |
| [ax_cv_check_cl_libcl=$ax_try_lib; break], |
| [ax_check_cl_nvidia_flags="-L/usr/$ax_check_cl_libdir/nvidia" LIBS="$ax_try_lib $ax_check_cl_nvidia_flags $CL_LIBS $ax_save_LIBS" |
| AC_LINK_IFELSE([AX_OPENCL_PROGRAM], |
| [ax_cv_check_cl_libcl="$ax_try_lib $ax_check_cl_nvidia_flags"; break], |
| [ax_check_cl_dylib_flag='-Wl,-framework,OpenCL -L/System/Library/Frameworks/OpenCL.framework/Versions/A/Libraries' LIBS="$ax_try_lib $ax_check_cl_dylib_flag $CL_LIBS $ax_save_LIBS" |
| AC_LINK_IFELSE([AX_OPENCL_PROGRAM], |
| [ax_cv_check_cl_libcl="$ax_try_lib $ax_check_cl_dylib_flag"; break], |
| [ax_check_cl_amd_flags="-L$AMDAPPSDKROOT/lib/$ax_check_cl_amd_libdir" LIBS="$ax_try_lib $ax_check_cl_amd_flags $CL_LIBS $ax_save_LIBS" |
| AC_LINK_IFELSE([AX_OPENCL_PROGRAM], |
| [ax_cv_check_cl_libcl="$ax_try_lib $ax_check_cl_amd_flags"; break] |
| ) |
| ] |
| )])]) |
| done |
| |
| AS_IF([test "X$ax_cv_check_cl_libcl" = Xno], |
| [LIBS='-Wl,-framework,OpenCL' |
| AC_LINK_IFELSE([AX_OPENCL_PROGRAM], |
| [ax_cv_check_cl_libcl=$LIBS])]) |
| |
| LIBS=$ax_save_LIBS |
| CPPFLAGS=$ax_save_CPPFLAGS]) |
| |
| AS_IF([test "X$ax_cv_check_cl_libcl" = Xno], |
| [no_cl=yes; CL_CFLAGS=""; CL_LIBS=""], |
| [CL_LIBS="$ax_cv_check_cl_libcl $CL_LIBS"; AC_DEFINE([_OPENCL], [1], |
| [Define this for the OpenCL Accelerator])]) |
| AC_LANG_POP([$1]) |
| fi |
| |
| AC_SUBST([CL_CFLAGS]) |
| |
| #remove static link on Linux |
| CL_LIBS=`echo $CL_LIBS | $SED -e 's/-lOpenCL //'` |
| AC_SUBST([CL_LIBS]) |
| ])dnl |