CVS borked && m4 Q

Hi trying to checkout php-gtk & CVS seems to be hanging at.. .....cvs checkout: Updating php-gtk/win32 ? or just me again :) also .... the current errors I am having .. configure.in:8: /usr/bin/m4: Undefined macro `AC_PROG_EGREP' .. would make sense to me if indeed configure.in had AC_PROG_EGREP at line 8 or indeed anywhere ?? but it does not , or am I looking in the wrong place ? please explain , AC_PROG_EGREP is defined in build/libtool.m4 though [root@home build]# cat libtool.m4 | grep AC_PROG_EGREP # AC_PROG_EGREP ifdef([AC_PROG_EGREP], [], [AC_DEFUN([AC_PROG_EGREP], [AC_REQUIRE([AC_PROG_EGREP])dnl [AC_REQUIRE([AC_PROG_EGREP])dnl so is my aclocal/autoconf/make just borked , or is build/libtool.m4 not getting parsed Regards, Simon.