Mercurial > octave-nkf
annotate m4/ax_lapack.m4 @ 20651:e54ecb33727e
lo-array-gripes.cc: Remove FIXME's related to buffer size.
* lo-array-gripes.cc: Remove FIXME's related to buffer size. Shorten sprintf
buffers from 100 to 64 characters (still well more than 19 required).
Use 'const' decorator on constant value for clarity. Remove extra space
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| author | Rik <rik@octave.org> |
|---|---|
| date | Mon, 12 Oct 2015 21:13:47 -0700 |
| parents | 97b8d462ef11 |
| children |
| rev | line source |
|---|---|
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1 # =========================================================================== |
| 10951 | 2 # http://www.gnu.org/software/autoconf-archive/ax_lapack.html |
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3 # =========================================================================== |
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4 # |
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5 # SYNOPSIS |
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6 # |
| 10951 | 7 # AX_LAPACK([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) |
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8 # |
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9 # DESCRIPTION |
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10 # |
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11 # This macro looks for a library that implements the LAPACK linear-algebra |
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12 # interface (see http://www.netlib.org/lapack/). On success, it sets the |
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13 # LAPACK_LIBS output variable to hold the requisite library linkages. |
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14 # |
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15 # To link with LAPACK, you should link with: |
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16 # |
| 10951 | 17 # $LAPACK_LIBS $BLAS_LIBS $LIBS $FLIBS |
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18 # |
| 10951 | 19 # in that order. BLAS_LIBS is the output variable of the AX_BLAS macro, |
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20 # called automatically. FLIBS is the output variable of the |
| 10951 | 21 # AC_F77_LIBRARY_LDFLAGS macro (called if necessary by AX_BLAS), and is |
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22 # sometimes necessary in order to link with F77 libraries. Users will also |
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23 # need to use AC_F77_DUMMY_MAIN (see the autoconf manual), for the same |
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24 # reason. |
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25 # |
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26 # The user may also use --with-lapack=<lib> in order to use some specific |
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27 # LAPACK library <lib>. In order to link successfully, however, be aware |
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28 # that you will probably need to use the same Fortran compiler (which can |
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29 # be set via the F77 env. var.) as was used to compile the LAPACK and BLAS |
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30 # libraries. |
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31 # |
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32 # ACTION-IF-FOUND is a list of shell commands to run if a LAPACK library |
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33 # is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it |
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34 # is not found. If ACTION-IF-FOUND is not specified, the default action |
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35 # will define HAVE_LAPACK. |
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36 # |
| 10951 | 37 # LICENSE |
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38 # |
| 10951 | 39 # Copyright (c) 2009 Steven G. Johnson <stevenj@alum.mit.edu> |
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40 # |
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41 # This program is free software: you can redistribute it and/or modify it |
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42 # under the terms of the GNU General Public License as published by the |
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43 # Free Software Foundation, either version 3 of the License, or (at your |
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44 # option) any later version. |
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45 # |
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46 # This program is distributed in the hope that it will be useful, but |
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47 # WITHOUT ANY WARRANTY; without even the implied warranty of |
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48 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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49 # Public License for more details. |
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50 # |
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51 # You should have received a copy of the GNU General Public License along |
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52 # with this program. If not, see <http://www.gnu.org/licenses/>. |
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53 # |
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54 # As a special exception, the respective Autoconf Macro's copyright owner |
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55 # gives unlimited permission to copy, distribute and modify the configure |
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56 # scripts that are the output of Autoconf when processing the Macro. You |
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57 # need not follow the terms of the GNU General Public License when using |
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58 # or distributing such scripts, even though portions of the text of the |
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59 # Macro appear in them. The GNU General Public License (GPL) does govern |
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60 # all other use of the material that constitutes the Autoconf Macro. |
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61 # |
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62 # This special exception to the GPL applies to versions of the Autoconf |
| 10951 | 63 # Macro released by the Autoconf Archive. When you make and distribute a |
| 64 # modified version of the Autoconf Macro, you may extend this special | |
| 65 # exception to the GPL to apply to your modified version as well. | |
| 3887 | 66 |
| 10951 | 67 #serial 7 |
| 68 | |
| 69 AU_ALIAS([ACX_LAPACK], [AX_LAPACK]) | |
| 70 AC_DEFUN([AX_LAPACK], [ | |
| 71 AC_REQUIRE([AX_BLAS]) | |
| 72 ax_lapack_ok=no | |
| 3887 | 73 |
| 74 AC_ARG_WITH(lapack, | |
| 10951 | 75 [AS_HELP_STRING([--with-lapack=<lib>], [use LAPACK library <lib>])]) |
| 3887 | 76 case $with_lapack in |
| 77 yes | "") ;; | |
| 10951 | 78 no) ax_lapack_ok=disable ;; |
| 3887 | 79 -* | */* | *.a | *.so | *.so.* | *.o) LAPACK_LIBS="$with_lapack" ;; |
| 80 *) LAPACK_LIBS="-l$with_lapack" ;; | |
| 81 esac | |
| 82 | |
| 83 # Get fortran linker name of LAPACK function to check for. | |
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84 AC_F77_FUNC(cheev) |
| 3887 | 85 |
| 86 # We cannot use LAPACK if BLAS is not found | |
| 10951 | 87 if test "x$ax_blas_ok" != xyes; then |
| 88 ax_lapack_ok=noblas | |
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89 LAPACK_LIBS="" |
| 3887 | 90 fi |
| 91 | |
| 92 # First, check LAPACK_LIBS environment variable | |
| 93 if test "x$LAPACK_LIBS" != x; then | |
| 94 save_LIBS="$LIBS"; LIBS="$LAPACK_LIBS $BLAS_LIBS $LIBS $FLIBS" | |
| 95 AC_MSG_CHECKING([for $cheev in $LAPACK_LIBS]) | |
| 10951 | 96 AC_TRY_LINK_FUNC($cheev, [ax_lapack_ok=yes], [LAPACK_LIBS=""]) |
| 97 AC_MSG_RESULT($ax_lapack_ok) | |
| 3887 | 98 LIBS="$save_LIBS" |
| 10951 | 99 if test $ax_lapack_ok = no; then |
| 3887 | 100 LAPACK_LIBS="" |
| 101 fi | |
| 102 fi | |
| 103 | |
| 104 # LAPACK linked to by default? (is sometimes included in BLAS lib) | |
| 10951 | 105 if test $ax_lapack_ok = no; then |
| 3887 | 106 save_LIBS="$LIBS"; LIBS="$LIBS $BLAS_LIBS $FLIBS" |
| 10951 | 107 AC_CHECK_FUNC($cheev, [ax_lapack_ok=yes]) |
| 3887 | 108 LIBS="$save_LIBS" |
| 109 fi | |
| 110 | |
| 111 # Generic LAPACK library? | |
| 112 for lapack in lapack lapack_rs6k; do | |
| 10951 | 113 if test $ax_lapack_ok = no; then |
| 3887 | 114 save_LIBS="$LIBS"; LIBS="$BLAS_LIBS $LIBS" |
| 115 AC_CHECK_LIB($lapack, $cheev, | |
| 10951 | 116 [ax_lapack_ok=yes; LAPACK_LIBS="-l$lapack"], [], [$FLIBS]) |
| 3887 | 117 LIBS="$save_LIBS" |
| 118 fi | |
| 119 done | |
| 120 | |
| 121 AC_SUBST(LAPACK_LIBS) | |
| 122 | |
| 123 # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: | |
| 10951 | 124 if test x"$ax_lapack_ok" = xyes; then |
| 3887 | 125 ifelse([$1],,AC_DEFINE(HAVE_LAPACK,1,[Define if you have LAPACK library.]),[$1]) |
| 126 : | |
| 127 else | |
| 10951 | 128 ax_lapack_ok=no |
| 3887 | 129 $2 |
| 130 fi | |
| 10951 | 131 ])dnl AX_LAPACK |