| |
| AC_DEFUN([AC_PROG_CYTHON],[ |
| AC_PATH_PROG([CYTHON],[cython]) |
| if test -z "$CYTHON" ; then |
| AC_MSG_WARN([cannot 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([cannot determine Cython version]) |
| CYTHON=false |
| fi |
| fi |
| AC_SUBST([CYTHON_LIB]) |
| ]) |