AC_DEFUN([AC_PROG_CYTHON],[ AC_PATH_PROG([CYTHON],[cython]) if test -z "$CYTHON" ; then AC_MSG_WARN([Unable to find 'cython' program. You should look at http://www.cython.org] or install your distribution specific cython package.) CYTHON=false elif test -n "$1" ; then AC_MSG_CHECKING([for Cython version]) [cython_version=`$CYTHON --version 2>&1 | sed 's/Cython version \(.*\)$/\1/g'`] AC_MSG_RESULT([$cython_version]) # Setup extra version string for parsing [cython_version_stripped=`echo $cython_version | sed 's/\([0-9]\+\)\.\([0-9]\+\)[^\.]*\(\.\([0-9]\+\)\)\?.*/0\1.0\2.0\4/g'`] if test -n "$cython_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=$cython_version_stripped] [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 -gt $required_major || \ ( test $available_major -eq $required_major && \ test $available_minor -gt $required_minor ) || \ ( test $available_major -eq $required_major && \ test $available_minor -eq $required_minor && \ test $available_patch -ge $required_patch ) ; then AC_MSG_NOTICE([Cython executable is '$CYTHON']) else AC_MSG_WARN([Cython version >= $1 is required. You have $cython_version. You should look at http://www.cython.org]) CYTHON='echo "Error: Cython version >= $1 is required. You have '"$cython_version"'. You should look at http://www.cython.org" ; false' fi else AC_MSG_WARN([Unable to determine Cython version]) CYTHON=false fi fi AC_SUBST([CYTHON_LIB]) ])