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dnl This macro checks for the existance of swig and defines the
dnl corresponding SWIG variable.
dnl
dnl Synopsys:
dnl MLX_PROG_SWIG(maj.min.patch, eq|lt)
dnl The second parameter defines the required relation of the found version
dnl to the requested version:
dnl lt - the found version required to be newer or equal to the maj.min.patch
dnl eq - the found version required to be equal to the maj.min.patch
dnl
dnl Result:
dnl HAS_SWIG conditional - set to 1 if swig was found or 0 if not
dnl SWIG - the executable name
dnl
AC_DEFUN([MLX_PROG_SWIG],[
AC_PATH_PROG([SWIG],[swig])
# we use this to track the existance of swig
has_swig=0
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=`echo $swig_version | sed 's/[^0-9]*//'`]
[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 $available | sed -e 's/.*Patch[^0-9]*//' -e 's/[^0-9]*//g' `]
if test -z "$available_patch" ; then
[available_patch=0]
fi
# we have two modes of comparison...
if test x"$2" == xeq; then
if test $available_major -ne $required_major \
-o $available_minor -ne $required_minor \
-o $available_patch -ne $required_patch ; then
AC_MSG_WARN([SWIG version == $1 is required. You have $available_major.$available_minor.$available_patch. 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
has_swig=1
fi
else
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
has_swig=1
fi
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
if test ! -z "$has_swig"; then
dnl AC_MSG_INFO([SWIG executable is '$SWIG'])
SWIG_LIB=`$SWIG -swiglib`
dnl AC_MSG_INFO([SWIG runtime library directory is '$SWIG_LIB'])
AM_CONDITIONAL(HAS_SWIG,[test 1])
else
AM_CONDITIONAL(HAS_SWIG,[test 0])
fi
AC_SUBST([SWIG_LIB])
])
|