From: mental@...
Date: 2006-01-05T02:36:59+09:00
Subject: Re: building parse.o

Quoting Lou Vanek <vanek@acd.net>:

> why are you running gperf? lex.c should have come with the rest
> of the code already pre-assembled (it did for me).

Blame HP-UX's make.

> The entire file, lex.c, is pretty much generic C code. There
> shouldn't be any need to re-generate the file unless you are
> adding new keywords into the Ruby language.

It turns out I've got two problems:

 1. HP-UX's make considers a file out-of-date if it is the same
    age as its dependencies -- since lex.c is unpacked with the
    same timestamp as keywords, /usr/bin/make decides that it
    needs to be regenerated.

 2. The build of gperf on this box is badly broken

Workaround:  touch lex.c before building.

Lesson: Always use gmake.

-mental