Mercurial > hg > libxtract
view m4/ac_pkg_swig.m4 @ 96:757e6f99dcd7
Dan Stowell: Removed strange "zeroing" part of xtract_mfcc() which was zeroing a load of elements despite the fact that they're ignored by the DCT process called next, and never used for anything. This was writing to an assumed large result array (same size as number of FFT bins) despite the fact that only a small number of MFCCs (typically less than 50) are required, therefore either wasting memory or writing to memory it shouldn't do!
| author | Dan Stowell <danstowell@gmail.com> |
|---|---|
| date | Wed, 03 Oct 2007 13:43:16 +0000 |
| parents | ee7442343cf0 |
| children |
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##### http://autoconf-archive.cryp.to/ac_pkg_swig.html # # SYNOPSIS # # AC_PROG_SWIG([major.minor.micro]) # # DESCRIPTION # # This macro searches for a SWIG installation on your system. If # found you should call SWIG via $(SWIG). You can use the optional # first argument to check if the version of the available SWIG is # greater than or equal to the value of the argument. It should have # the format: N[.N[.N]] (N is a number between 0 and 999. Only the # first N is mandatory.) # # If the version argument is given (e.g. 1.3.17), AC_PROG_SWIG checks # that the swig package is this version number or higher. # # In configure.in, use as: # # AC_PROG_SWIG(1.3.17) # SWIG_ENABLE_CXX # SWIG_MULTI_MODULE_SUPPORT # SWIG_PYTHON # # LAST MODIFICATION # # 2006-10-22 # # COPYLEFT # # Copyright (c) 2006 Sebastian Huber <sebastian-huber@web.de> # Copyright (c) 2006 Alan W. Irwin <irwin@beluga.phys.uvic.ca> # Copyright (c) 2006 Rafael Laboissiere <rafael@laboissiere.net> # Copyright (c) 2006 Andrew Collier <colliera@ukzn.ac.za> # # 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 of the # License, 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., 59 Temple Place - Suite 330, Boston, MA # 02111-1307, USA. # # As a special exception, the respective Autoconf Macro's copyright # owner gives unlimited permission to 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, even though # portions of the text of the Macro appear in them. The GNU General # Public License (GPL) does govern all other use of the material that # constitutes the Autoconf Macro. # # This special exception to the GPL applies to versions of the # Autoconf Macro released by the Autoconf Macro Archive. When you # make and distribute a modified version of the Autoconf Macro, you # may extend this special exception to the GPL to apply to your # modified version as well. AC_DEFUN([AC_PROG_SWIG],[ AC_PATH_PROG([SWIG],[swig]) if test -z "$SWIG" ; then AC_MSG_WARN([cannot find 'swig' program. You should look at http://www.swig.org]) SWIG='echo "Error: SWIG is not installed. You should look at http://www.swig.org" ; false' elif test -n "$1" ; then AC_MSG_CHECKING([for SWIG version]) [swig_version=`$SWIG -version 2>&1 | grep 'SWIG Version' | sed 's/.*\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*/\1/g'`] AC_MSG_RESULT([$swig_version]) if test -n "$swig_version" ; then # Calculate the required version number components [required=$1] [required_major=`echo $required | sed 's/[^0-9].*//'`] if test -z "$required_major" ; then [required_major=0] fi [required=`echo $required | sed 's/[0-9]*[^0-9]//'`] [required_minor=`echo $required | sed 's/[^0-9].*//'`] if test -z "$required_minor" ; then [required_minor=0] fi [required=`echo $required | sed 's/[0-9]*[^0-9]//'`] [required_patch=`echo $required | sed 's/[^0-9].*//'`] if test -z "$required_patch" ; then [required_patch=0] fi # Calculate the available version number components [available=$swig_version] [available_major=`echo $available | sed 's/[^0-9].*//'`] if test -z "$available_major" ; then [available_major=0] fi [available=`echo $available | sed 's/[0-9]*[^0-9]//'`] [available_minor=`echo $available | sed 's/[^0-9].*//'`] if test -z "$available_minor" ; then [available_minor=0] fi [available=`echo $available | sed 's/[0-9]*[^0-9]//'`] [available_patch=`echo $available | sed 's/[^0-9].*//'`] if test -z "$available_patch" ; then [available_patch=0] fi if test $available_major -ne $required_major \ -o $available_minor -ne $required_minor \ -o $available_patch -lt $required_patch ; then AC_MSG_WARN([SWIG version >= $1 is required. You have $swig_version. You should look at http://www.swig.org]) SWIG='echo "Error: SWIG version >= $1 is required. You have '"$swig_version"'. You should look at http://www.swig.org" ; false' else AC_MSG_NOTICE([SWIG executable is '$SWIG']) SWIG_LIB=`$SWIG -swiglib` AC_MSG_NOTICE([SWIG library directory is '$SWIG_LIB']) fi else AC_MSG_WARN([cannot determine SWIG version]) SWIG='echo "Error: Cannot determine SWIG version. You should look at http://www.swig.org" ; false' fi fi AC_SUBST([SWIG_LIB]) ])