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Re: Trunk bootstrap failure [Cygwin]

From: Angelo Graziosi
Subject: Re: Trunk bootstrap failure [Cygwin]
Date: Sat, 10 Jul 2010 00:35:34 +0200
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; it; rv: Gecko/20100608 Thunderbird/3.1

Il 09/07/2010 19.08, Dan Nicolaescu ha scritto:
Angelo Graziosi<address@hidden>  writes:

Il 09/07/2010 1.07, Dan Nicolaescu ha scritto:
Angelo Graziosi<address@hidden>   writes:

Il 08/07/2010 7.54, Dan Nicolaescu ha scritto:
Angelo Graziosi<address@hidden>    writes:

Since 'start_of_text' is not used by Cygwin build, shouldn't 'ecrt0.c'
be completely unnecessary?

That's exactly the reason for this discussion: getting rid of ecrt0.c.

Hmm... bootstrapping rev. 100753 *without* patches (i.e. using
ecrt0.c), shows that:

$ grep -R start_of_text emacs/inst/usr/local/emacs

is *empty* (emacs/inst/usr/local/emacs is the Emacs installation
directory). This would mean that the function 'start_of_text' is not
compiled any more in the Cygwin build. Right?

Sure, before yesterday it was just sitting there unused.

What about 'ecrt0.c'? It seems that it happens the same for it.

For completeness, the bootstrap (rev. 100755) I did applying *only*
this patch:

--- emacs.orig/configure        2010-07-02 11:27:38.000000000 +0200
+++ emacs/configure     2010-07-06 10:45:21.656250000 +0200
@@ -5864,7 +5864,7 @@
  case $opsys in
    cygwin )
-    START_FILES='ecrt0.o'
+    START_FILES='pre-crt0.o'
    darwin )
      ## Adding -lm confuses the dynamic linker, so omit it.

is still working.

As expected.  Nothing in this area has changed since you tried this a
couple of days ago.
I'd like to make this change.
And in order to plan for the unexpected: if in the next few months you
get weird memory errors, are you willing to test again with this patch reverted?

Obviously, but if you prefer, you can leave the things as they stand and I add that patch to my set of personal patches with which I bootstrap Emacs...


Tu proverai si' come sa di sale
lo pane altrui, e come e' duro calle
lo scendere e 'l salir per l'altrui scale.

                  DANTE, Paradiso, xvii 58-60

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