Re: y.tab.c inclusion within the source tree

[Christian Weisgerber]

Mark Goldfinch:

> Can someone clarify to me why y.tab.c is included within the bash source
> tree if it is generated from parse.y?
> 
> If one looks in the FreeBSD ports tree, they're deliberately taking the
> initiative to touch parse.y to ensure that y.tab.c is always rebuilt.

They also have a dependency on the bison port, because parse.y does
not build correctly with FreeBSD's yacc(1).  You end up with a bash
that has broken $(...) parsing.  Same issue on OpenBSD, where the
port doesn't touch parse.y because there is no need to.

> If y.tab.c's timestamp ends up being newer than parse.y,

Why would this happen?

> a patch which (correctly) only patches parse.y,

... will cause parse.y to have a newer timestamp.

-- 
Christian "naddy" Weisgerber                          naddy@mips.inka.de