Re: Emacs bootstrap: 'ignored' errors [trunk]

[Angelo Graziosi]

Il 10/10/2010 0.44, Glenn Morris ha scritto:
> Angelo Graziosi wrote:
>
> > In some ways, the 'ignored' errors were the basis of the upcoming
> > fatal ones. Perhaps, asking 'why I got these ignored?' could avoid the
> > break in r101874: the recent changes in docs did not take into account
> > for bootstrap OOT.
>
> This is all bunkum.

Why?

The following is on GNU/Linux Kubuntu 10.04.

[A] - Out of tree build, rev. 101821
$ rsync -av --delete emacs-trunk/ emacs/
$ cd emacs
$ bzr up -r 101821
$ mkdir build_dir
$ cd build_dir
$ ../configure 2>&1 | tee oot_build.log
$ make bootstrap -j4 2>&1 | tee -a oot_build.log

$ grep -i error oot_build.log
checking jerror.h usability... yes
checking jerror.h presence... yes
checking for jerror.h... yes
checking for strerror... yes
checking for gai_strerror... yes
rm -f libXMenu11.a Activate.o AddPane.o AddSel.o ChgPane.o ChgSel.o 
Create.o DelPane.o DelSel.o Destroy.o Error.o EvHand.o FindPane.o 
FindSel.o InsPane.o InsSel.o Internal.o Locate.o Post.o Recomp.o 
SetAEQ.o SetFrz.o SetPane.o SetSel.o XDelAssoc.o XLookAssoc.o XCrAssoc.o 
XDestAssoc.o XMakeAssoc.o insque.o
make[1]: [infoclean] Errore 2 (ignorato)
make[1]: [infoclean] Errore 2 (ignorato)
make[1]: [infoclean] Errore 2 (ignorato)
/tmp/emacs/lib-src/../src/regex.c: In function ‘regerror’:

[B] - In tree build, rev. 101821
$ rsync -av --delete emacs-trunk/ emacs/
$ cd emacs
$ bzr up -r 101821
$ ./configure 2>&1 | tee in_tree_build.log
$ make bootstrap -j4 2>&1 | tee -a in_tree_build.log

$ grep -i error in_tree_build.log
checking jerror.h usability... yes
checking jerror.h presence... yes
checking for jerror.h... yes
checking for strerror... yes
checking for gai_strerror... yes
rm -f libXMenu11.a Activate.o AddPane.o AddSel.o ChgPane.o ChgSel.o 
Create.o DelPane.o DelSel.o Destroy.o Error.o EvHand.o FindPane.o 
FindSel.o InsPane.o InsSel.o Internal.o Locate.o Post.o Recomp.o 
SetAEQ.o SetFrz.o SetPane.o SetSel.o XDelAssoc.o XLookAssoc.o XCrAssoc.o 
XDestAssoc.o XMakeAssoc.o insque.o
/tmp/emacs/lib-src/../src/regex.c: In function ‘regerror’:
make[2]: [stamp-rcs-checkin] Errore 1 (ignorato)
make[2]: [stamp-grep-changelog] Errore 1 (ignorato)
make[2]: [stamp-rcs2log] Errore 1 (ignorato)
make[2]: [stamp-vcdiff] Errore 1 (ignorato)

In [B], the 'ignored' errors regard something like 'cp foo foo' _NOT_ 
your changes in 'infoclean'.

Repeating the same with rev. 101874, [A] gives:

$ grep -i error oot_build.log
checking jerror.h usability... yes
checking jerror.h presence... yes
checking for jerror.h... yes
checking for strerror... yes
checking for gai_strerror... yes
rm -f libXMenu11.a Activate.o AddPane.o AddSel.o ChgPane.o ChgSel.o 
Create.o DelPane.o DelSel.o Destroy.o Error.o EvHand.o FindPane.o 
FindSel.o InsPane.o InsSel.o Internal.o Locate.o Post.o Recomp.o 
SetAEQ.o SetFrz.o SetPane.o SetSel.o XDelAssoc.o XLookAssoc.o XCrAssoc.o 
XDestAssoc.o XMakeAssoc.o insque.o
make[1]: [infoclean] Errore 2 (ignorato)
make[1]: [infoclean] Errore 2 (ignorato)
make[1]: [infoclean] Errore 2 (ignorato)
make[2]: *** [info-real] Errore 2
make[1]: *** [info] Errore 2
/tmp/emacs/lib-src/../src/regex.c: In function ‘regerror’:
make: *** [bootstrap] Errore 2

BOOTSTRAP FAILURE!

Instead, [B] with rev. 101874 has success:

$ grep -i error in_tree_build.log
checking jerror.h usability... yes
checking jerror.h presence... yes
checking for jerror.h... yes
checking for strerror... yes
checking for gai_strerror... yes
rm -f libXMenu11.a Activate.o AddPane.o AddSel.o ChgPane.o ChgSel.o 
Create.o DelPane.o DelSel.o Destroy.o Error.o EvHand.o FindPane.o 
FindSel.o InsPane.o InsSel.o Internal.o Locate.o Post.o Recomp.o 
SetAEQ.o SetFrz.o SetPane.o SetSel.o XDelAssoc.o XLookAssoc.o XCrAssoc.o 
XDestAssoc.o XMakeAssoc.o insque.o
/tmp/emacs/lib-src/../src/regex.c: In function ‘regerror’:
make[2]: [stamp-rcs-checkin] Errore 1 (ignorato)
make[2]: [stamp-grep-changelog] Errore 1 (ignorato)
make[2]: [stamp-rcs2log] Errore 1 (ignorato)
make[2]: [stamp-vcdiff] Errore 1 (ignorato)

Where 'ignored' recards 'cp foo foo'.

Your changes, at least up to rev. 101874, were affected by this issue: 
they did not work right in a bootstrap 'out of tree', and the 'ignored' 
errors, [A], of rev. 101821, were trying to flag this.

Cheers,
Angelo.