configure.in patch

[Andreas Mohr]

On Tue, Jun 26, 2001 at 11:42:07AM +0200, Marcus Meissner wrote:
> On Tue, Jun 26, 2001 at 05:43:55PM +0900, Bang Jun-Young wrote:
> > Why does configure check for flex twice? On NetBSD I get:
> > 
> > checking for bison... no
> > checking for byacc... no
> > checking for flex... flex
> > checking for yywrap in -lfl... yes
> > checking for flex... flex
> > 
> > (as seen above, autoconf doesn't search for `yacc' for
> > AC_PROG_YACC -- should be fixed)
> 
> It will use it as default if neither byacc nor flex are found.
> 
> The reason we check for 'flex' again is that the standard check sets LEX
> to 'lex' even if none is found, which lead to confusion during compile.
> 
> Our check is similar, but it finds out if 'lex' is present and aborts
> configure if not. 
> 
> This has reduced compiling support queries :)
That's all fine and dandy :), but I think we should add a comment to this
configure.in line, given the pretty confusing doubled configure output.
I'm about 150% sure other people will want to submit the same "fixes"
otherwise.

-- 
Andreas Mohr