It seems that libtool.m4 from the old libtool version was split into several files: libtool.m4 lt~obsolete.m4 ltoptions.m4 ltsugar.m4 ltversion.m4
I think it also works if you temporarily cat lt~obsolete.m4 ltoptions.m4 ltsugar.m4 ltversion.m4 into libtool.m4
This patch worked for me http:// cvs.pld- linux.org/ cgi-bin/ cvsweb. cgi/SOURCES/ php4-libtool. patch?r1= 1.4&r2= 1.5&f=u
Except i used absolute path instead of ./build
It seems that libtool.m4 from the old libtool version was split into several files: libtool.m4 lt~obsolete.m4 ltoptions.m4 ltsugar.m4 ltversion.m4
I think it also works if you temporarily cat lt~obsolete.m4 ltoptions.m4 ltsugar.m4 ltversion.m4 into libtool.m4