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| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Fri, 30 Jan 2015 17:41:50 -0500 |
| parents | d6240c099a02 |
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| rev | line source |
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| 10951 | 1 # =========================================================================== |
| 2 # http://www.gnu.org/software/autoconf-archive/ax_blas.html | |
| 3 # =========================================================================== | |
| 4 # | |
| 5 # SYNOPSIS | |
| 6 # | |
| 7 # AX_BLAS([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) | |
| 8 # | |
| 9 # DESCRIPTION | |
| 10 # | |
| 11 # This macro looks for a library that implements the BLAS linear-algebra | |
| 12 # interface (see http://www.netlib.org/blas/). On success, it sets the | |
| 13 # BLAS_LIBS output variable to hold the requisite library linkages. | |
| 14 # | |
| 15 # To link with BLAS, you should link with: | |
| 16 # | |
| 17 # $BLAS_LIBS $LIBS $FLIBS | |
| 18 # | |
| 19 # in that order. FLIBS is the output variable of the | |
| 20 # AC_F77_LIBRARY_LDFLAGS macro (called if necessary by AX_BLAS), and is | |
| 21 # sometimes necessary in order to link with F77 libraries. Users will also | |
| 22 # need to use AC_F77_DUMMY_MAIN (see the autoconf manual), for the same | |
| 23 # reason. | |
| 24 # | |
| 25 # Many libraries are searched for, from ATLAS to CXML to ESSL. The user | |
| 26 # may also use --with-blas=<lib> in order to use some specific BLAS | |
| 27 # library <lib>. In order to link successfully, however, be aware that you | |
| 28 # will probably need to use the same Fortran compiler (which can be set | |
| 29 # via the F77 env. var.) as was used to compile the BLAS library. | |
| 30 # | |
| 31 # ACTION-IF-FOUND is a list of shell commands to run if a BLAS library is | |
| 32 # found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it is | |
| 33 # not found. If ACTION-IF-FOUND is not specified, the default action will | |
| 34 # define HAVE_BLAS. | |
| 35 # | |
| 36 # LICENSE | |
| 37 # | |
| 38 # Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu> | |
| 39 # | |
| 40 # This program is free software: you can redistribute it and/or modify it | |
| 41 # under the terms of the GNU General Public License as published by the | |
| 42 # Free Software Foundation, either version 3 of the License, or (at your | |
| 43 # option) any later version. | |
| 44 # | |
| 45 # This program is distributed in the hope that it will be useful, but | |
| 46 # WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 47 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General | |
| 48 # Public License for more details. | |
| 49 # | |
| 50 # You should have received a copy of the GNU General Public License along | |
| 51 # with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 52 # | |
| 53 # As a special exception, the respective Autoconf Macro's copyright owner | |
| 54 # gives unlimited permission to copy, distribute and modify the configure | |
| 55 # scripts that are the output of Autoconf when processing the Macro. You | |
| 56 # need not follow the terms of the GNU General Public License when using | |
| 57 # or distributing such scripts, even though portions of the text of the | |
| 58 # Macro appear in them. The GNU General Public License (GPL) does govern | |
| 59 # all other use of the material that constitutes the Autoconf Macro. | |
| 60 # | |
| 61 # This special exception to the GPL applies to versions of the Autoconf | |
| 62 # Macro released by the Autoconf Archive. When you make and distribute a | |
| 63 # modified version of the Autoconf Macro, you may extend this special | |
| 64 # exception to the GPL to apply to your modified version as well. | |
| 65 | |
|
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66 #serial 14 |
| 10951 | 67 |
| 68 AU_ALIAS([ACX_BLAS], [AX_BLAS]) | |
| 69 AC_DEFUN([AX_BLAS], [ | |
| 3887 | 70 AC_PREREQ(2.50) |
| 71 AC_REQUIRE([AC_F77_LIBRARY_LDFLAGS]) | |
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72 AC_REQUIRE([AC_CANONICAL_HOST]) |
| 10951 | 73 ax_blas_ok=no |
| 3887 | 74 |
| 75 AC_ARG_WITH(blas, | |
| 5844 | 76 [AS_HELP_STRING([--with-blas=<lib>], [use BLAS library <lib>])]) |
| 3887 | 77 case $with_blas in |
| 78 yes | "") ;; | |
| 10951 | 79 no) ax_blas_ok=disable ;; |
| 3887 | 80 -* | */* | *.a | *.so | *.so.* | *.o) BLAS_LIBS="$with_blas" ;; |
| 81 *) BLAS_LIBS="-l$with_blas" ;; | |
| 82 esac | |
| 83 | |
| 84 # Get fortran linker names of BLAS functions to check for. | |
| 10951 | 85 AC_F77_FUNC(sgemm) |
| 86 AC_F77_FUNC(dgemm) | |
| 3887 | 87 |
| 10951 | 88 ax_blas_save_LIBS="$LIBS" |
| 3887 | 89 LIBS="$LIBS $FLIBS" |
| 90 | |
| 91 # First, check BLAS_LIBS environment variable | |
| 10951 | 92 if test $ax_blas_ok = no; then |
| 3887 | 93 if test "x$BLAS_LIBS" != x; then |
| 94 save_LIBS="$LIBS"; LIBS="$BLAS_LIBS $LIBS" | |
| 95 AC_MSG_CHECKING([for $sgemm in $BLAS_LIBS]) | |
| 10951 | 96 AC_TRY_LINK_FUNC($sgemm, [ax_blas_ok=yes], [BLAS_LIBS=""]) |
| 97 AC_MSG_RESULT($ax_blas_ok) | |
| 3887 | 98 LIBS="$save_LIBS" |
| 99 fi | |
| 100 fi | |
| 101 | |
| 102 # BLAS linked to by default? (happens on some supercomputers) | |
| 10951 | 103 if test $ax_blas_ok = no; then |
| 3887 | 104 save_LIBS="$LIBS"; LIBS="$LIBS" |
| 11017 | 105 AC_MSG_CHECKING([if $sgemm is being linked in already]) |
| 106 AC_TRY_LINK_FUNC($sgemm, [ax_blas_ok=yes]) | |
| 107 AC_MSG_RESULT($ax_blas_ok) | |
| 3887 | 108 LIBS="$save_LIBS" |
| 109 fi | |
| 110 | |
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111 # BLAS in OpenBLAS library? (http://xianyi.github.com/OpenBLAS/) |
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112 if test $ax_blas_ok = no; then |
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113 AC_CHECK_LIB(openblas, $sgemm, [ax_blas_ok=yes |
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114 BLAS_LIBS="-lopenblas"]) |
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115 fi |
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116 |
| 3887 | 117 # BLAS in ATLAS library? (http://math-atlas.sourceforge.net/) |
| 10951 | 118 if test $ax_blas_ok = no; then |
| 3887 | 119 AC_CHECK_LIB(atlas, ATL_xerbla, |
| 120 [AC_CHECK_LIB(f77blas, $sgemm, | |
| 121 [AC_CHECK_LIB(cblas, cblas_dgemm, | |
| 10951 | 122 [ax_blas_ok=yes |
| 3887 | 123 BLAS_LIBS="-lcblas -lf77blas -latlas"], |
| 124 [], [-lf77blas -latlas])], | |
| 125 [], [-latlas])]) | |
| 126 fi | |
| 127 | |
| 128 # BLAS in PhiPACK libraries? (requires generic BLAS lib, too) | |
| 10951 | 129 if test $ax_blas_ok = no; then |
| 3887 | 130 AC_CHECK_LIB(blas, $sgemm, |
| 131 [AC_CHECK_LIB(dgemm, $dgemm, | |
| 132 [AC_CHECK_LIB(sgemm, $sgemm, | |
| 10951 | 133 [ax_blas_ok=yes; BLAS_LIBS="-lsgemm -ldgemm -lblas"], |
| 3887 | 134 [], [-lblas])], |
| 135 [], [-lblas])]) | |
| 136 fi | |
| 137 | |
| 10951 | 138 # BLAS in Intel MKL library? |
| 139 if test $ax_blas_ok = no; then | |
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140 # MKL for gfortran |
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141 if test x"$ac_cv_fc_compiler_gnu" = xyes; then |
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142 # 64 bit |
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143 if test $host_cpu = x86_64; then |
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144 AC_CHECK_LIB(mkl_gf_lp64, $sgemm, |
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145 [ax_blas_ok=yes;BLAS_LIBS="-lmkl_gf_lp64 -lmkl_sequential -lmkl_core -lpthread"],, |
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146 [-lmkl_gf_lp64 -lmkl_sequential -lmkl_core -lpthread]) |
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147 # 32 bit |
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148 elif test $host_cpu = i686; then |
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149 AC_CHECK_LIB(mkl_gf, $sgemm, |
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150 [ax_blas_ok=yes;BLAS_LIBS="-lmkl_gf -lmkl_sequential -lmkl_core -lpthread"],, |
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151 [-lmkl_gf -lmkl_sequential -lmkl_core -lpthread]) |
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152 fi |
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153 # MKL for other compilers (Intel, PGI, ...?) |
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154 else |
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155 # 64-bit |
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156 if test $host_cpu = x86_64; then |
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157 AC_CHECK_LIB(mkl_intel_lp64, $sgemm, |
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158 [ax_blas_ok=yes;BLAS_LIBS="-lmkl_intel_lp64 -lmkl_sequential -lmkl_core -lpthread"],, |
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159 [-lmkl_intel_lp64 -lmkl_sequential -lmkl_core -lpthread]) |
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160 # 32-bit |
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161 elif test $host_cpu = i686; then |
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162 AC_CHECK_LIB(mkl_intel, $sgemm, |
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163 [ax_blas_ok=yes;BLAS_LIBS="-lmkl_intel -lmkl_sequential -lmkl_core -lpthread"],, |
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164 [-lmkl_intel -lmkl_sequential -lmkl_core -lpthread]) |
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165 fi |
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166 fi |
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167 fi |
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168 # Old versions of MKL |
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169 if test $ax_blas_ok = no; then |
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170 AC_CHECK_LIB(mkl, $sgemm, [ax_blas_ok=yes;BLAS_LIBS="-lmkl -lguide -lpthread"],,[-lguide -lpthread]) |
| 10951 | 171 fi |
| 172 | |
| 173 # BLAS in Apple vecLib library? | |
| 174 if test $ax_blas_ok = no; then | |
| 175 save_LIBS="$LIBS"; LIBS="-framework vecLib $LIBS" | |
| 11017 | 176 AC_MSG_CHECKING([for $sgemm in -framework vecLib]) |
| 177 AC_TRY_LINK_FUNC($sgemm, [ax_blas_ok=yes;BLAS_LIBS="-framework vecLib"]) | |
| 178 AC_MSG_RESULT($ax_blas_ok) | |
| 10951 | 179 LIBS="$save_LIBS" |
| 180 fi | |
| 181 | |
| 3887 | 182 # BLAS in Alpha CXML library? |
| 10951 | 183 if test $ax_blas_ok = no; then |
| 184 AC_CHECK_LIB(cxml, $sgemm, [ax_blas_ok=yes;BLAS_LIBS="-lcxml"]) | |
| 3887 | 185 fi |
| 186 | |
| 187 # BLAS in Alpha DXML library? (now called CXML, see above) | |
| 10951 | 188 if test $ax_blas_ok = no; then |
| 189 AC_CHECK_LIB(dxml, $sgemm, [ax_blas_ok=yes;BLAS_LIBS="-ldxml"]) | |
| 3887 | 190 fi |
| 191 | |
| 192 # BLAS in Sun Performance library? | |
| 10951 | 193 if test $ax_blas_ok = no; then |
| 3887 | 194 if test "x$GCC" != xyes; then # only works with Sun CC |
| 195 AC_CHECK_LIB(sunmath, acosp, | |
| 196 [AC_CHECK_LIB(sunperf, $sgemm, | |
| 11017 | 197 [BLAS_LIBS="-xlic_lib=sunperf -lsunmath" |
| 10951 | 198 ax_blas_ok=yes],[],[-lsunmath])]) |
| 3887 | 199 fi |
| 200 fi | |
| 201 | |
| 202 # BLAS in SCSL library? (SGI/Cray Scientific Library) | |
| 10951 | 203 if test $ax_blas_ok = no; then |
| 204 AC_CHECK_LIB(scs, $sgemm, [ax_blas_ok=yes; BLAS_LIBS="-lscs"]) | |
| 3887 | 205 fi |
| 206 | |
| 207 # BLAS in SGIMATH library? | |
| 10951 | 208 if test $ax_blas_ok = no; then |
| 3887 | 209 AC_CHECK_LIB(complib.sgimath, $sgemm, |
| 10951 | 210 [ax_blas_ok=yes; BLAS_LIBS="-lcomplib.sgimath"]) |
| 3887 | 211 fi |
| 212 | |
| 213 # BLAS in IBM ESSL library? (requires generic BLAS lib, too) | |
| 10951 | 214 if test $ax_blas_ok = no; then |
| 3887 | 215 AC_CHECK_LIB(blas, $sgemm, |
| 216 [AC_CHECK_LIB(essl, $sgemm, | |
| 10951 | 217 [ax_blas_ok=yes; BLAS_LIBS="-lessl -lblas"], |
| 3887 | 218 [], [-lblas $FLIBS])]) |
| 219 fi | |
| 220 | |
| 221 # Generic BLAS library? | |
| 10951 | 222 if test $ax_blas_ok = no; then |
| 223 AC_CHECK_LIB(blas, $sgemm, [ax_blas_ok=yes; BLAS_LIBS="-lblas"]) | |
| 3887 | 224 fi |
| 225 | |
| 226 AC_SUBST(BLAS_LIBS) | |
| 227 | |
| 10951 | 228 LIBS="$ax_blas_save_LIBS" |
| 3887 | 229 |
| 230 # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: | |
| 10951 | 231 if test x"$ax_blas_ok" = xyes; then |
| 3887 | 232 ifelse([$1],,AC_DEFINE(HAVE_BLAS,1,[Define if you have a BLAS library.]),[$1]) |
| 233 : | |
| 234 else | |
| 10951 | 235 ax_blas_ok=no |
| 3887 | 236 $2 |
| 237 fi | |
| 10951 | 238 ])dnl AX_BLAS |