1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
# -*- 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
|
