GNU bug report logs - #8753
unable to build VALA project out-of-tree

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Zbigniew Jędrzejewski-Szmek <zbyszek <at> in.waw.pl>
Subject: bug#8753: closed (Re: bug#8753: unable to build VALA project
 out-of-tree)
Date: Wed, 11 Jan 2012 17:52:03 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#8753: unable to build VALA project out-of-tree

which was filed against the automake package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 8753 <at> debbugs.gnu.org.

-- 
8753: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8753
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Stefano Lattarini <stefano.lattarini <at> gmail.com>
To: Ryan Lortie <desrt <at> desrt.ca>
Cc: automake-patches <at> gnu.org, 8753-done <at> debbugs.gnu.org
Subject: Re: bug#8753: unable to build VALA project out-of-tree
Date: Wed, 11 Jan 2012 18:50:58 +0100

On 01/08/2012 12:54 PM, Stefano Lattarini wrote:
> 
> Attached is what I'll pushed to maint in 72 hours, if there is no objection.
> 
No objection has been advanced; I've thus pushed the patch and closed this
bug report.

Thanks,
  Stefano

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From: Zbigniew Jędrzejewski-Szmek <zbyszek <at> in.waw.pl>
To: bug-automake <at> gnu.org
Subject: unable to build VALA project out-of-tree
Date: Sat, 28 May 2011 01:08:30 +0300

Automake generates rules for VALA files which try to create C output
in the source directory. This is pretty strange, but anyway the
build doesn't succeed even if the source directory is writable.

quoting Andrey Borzenkov in http://lists.gnu.org/archive/html/automake/2010-11/msg00036.html:

-------------------------------------------------------------------
I'm trying to rebuild systemd
(http://www.freedesktop.org/wiki/Software/systemd) from GIT. It is
using several programs built using vala; in-tree build is OK,
out-of-tree build fails:

{pts/0}% LC_ALL=C make
make  all-am
make[1]: Entering directory `/home/bor/build/systemd'
make[1]: *** No rule to make target
`/home/bor/src/systemd/systemadm_vala.stamp', needed by
`/home/bor/src/systemd/src/systemadm.c'.  Stop.
make[1]: Leaving directory `/home/bor/build/systemd'
make: *** [all] Error 2

Looking at Makefile.in, generated by automake, I cannot understand how
it is supposed to work:

$(srcdir)/src/systemadm.c: $(srcdir)/systemadm_vala.stamp
        @if test -f $@; then :; else \
          rm -f $(srcdir)/systemadm_vala.stamp; \
          $(am__cd) $(srcdir) && $(MAKE) $(AM_MAKEFLAGS) systemadm_vala.stamp; \
        fi
systemadm_vala.stamp: $(systemadm_SOURCES)
        $(AM_V_VALAC)$(VALAC) $(systemadm_VALAFLAGS) $(VALAFLAGS) -C
$(systemadm_SOURCES)
        $(AM_V_at)touch $@

In out-of-tree build $(srcdir)/systemadm_vala.stamp is not the same as
systemadm_vala.stamp, nor can it be. VPATH search does not apply here,
because path does not yet exist; so when it is rebuilt, file name is
used verbatim.
-------------------------------------------------------------------

Andrey didn't get a definite reply, but the problem seems to be still present.

Zbyszek

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