AC_MSG_WARN([You will need bison if you want to regenerate the PHP parsers.])
else
AC_MSG_CHECKING([bison version])
- set `bison --version| grep 'GNU Bison' | cut -d ' ' -f 4 | sed -e 's/\./ /'`
+ set `bison --version| grep 'GNU Bison' | cut -d ' ' -f 4 | sed -e 's/\./ /'|tr -d a-z`
if test "${1}" = "1" -a "${2}" != "28" -a "${2}" != "35" -a "${2}" != "75"; then
AC_MSG_WARN([You will need bison 1.28, 1.35 or 1.75 if you want to regenerate the Zend parser (found ${1}.${2}).])
fi