Re: Speeding up libtool

[Robert Ögren]

Hi Ralf,

> Ralf Wildenhues wrote:
...
> Yes.  We recently identified that an audit of libtool.m4 for wrong use
> of $ECHO is necessary.

Oops, I glanced over the thread index for the patches list but missed 
that conversation.

> If you have time to produce a patch to this extent for the system(s) you
> can test, that would be great!  If not -- could I ask the favor to test
> a patch on your systems?  I will try to produce one by next week unless
> anyone beats me to it.

I can provide a patch for the specific cases that gave me trouble if 
that's good enough. And I can test a patch that you create. But first I 
want to get the benchmark thingie finished. Hopefully later today if 
nothing unexpected happens.

> Another question: How did you find those bugs?  I.e., were they exposed
> by the Libtool testsuite?  If not, how can we trigger them?

I just configured and built glib-2.6.3 (from 
ftp://ftp.gtk.org/pub/gtk/v2.6/) on Cygwin with
export SHELL=/bin/sh
export CONFIG_SHELL=/bin/sh
export lt_ECHO='printf %s\n'

I don't know if it happens with the testsuite. I did start it after 
building Libtool but must admit I got impatient and didn't let it 
finish. I didn't run it with sh (ash) either. But I will try to do that 
soon.

Anyway, the problems I experienced are in Win32-specific code paths, so 
you need to run under Cygwin or similar to reproduce them.

Robert