Subject: bug#7800: closed (Re: [PATCHES] yacc: support variable expansions in *YFLAGS definition)

From: [email-masked] (GNU bug Tracking System)
Date: Sun, 09 Jan 2011 15:23:01 +0000

Your bug report

#7800: automake fails to honor `-d' in AM_YFLAGS when variable expansions are involved

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 [email-masked].

-- 
7800: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=7800
GNU Bug Tracking System
Contact [email-masked] with problems

Subject: Re: [PATCHES] yacc: support variable expansions in *YFLAGS definition
From: Stefano Lattarini <[email-masked]>
To: Ralf Wildenhues <[email-masked]>
Cc: [email-masked], [email-masked]
Date: Sun, 9 Jan 2011 16:28:06 +0100
List-Id: <debbugs-submit.debbugs.gnu.org>

Reference:
 <http://lists.gnu.org/archive/html/automake-patches/2011-01/msg00057.html>

Both patches (with nits addressed) merged to master, and pushed.
This should fix automake bug#7800.

Regards,
  Stefano

Subject: automake fails to honor `-d' in AM_YFLAGS when variable expansions are involved
From: Stefano Lattarini <[email-masked]>
To: [email-masked]
Date: Fri, 7 Jan 2011 15:36:43 +0100
List-Id: <debbugs-submit.debbugs.gnu.org>

severity: wishlist
thanks

-*-*-

Hello automakers.

Currently, automake is not smart enough to resolve variable expansions
in AM_YFLAGS (or foo_YFLAGS) when scanning them for the `-d' flag.

For example:

  $ cat configure.ac
  AC_INIT(x,0)
  AM_INIT_AUTOMAKE(foreign)
  AC_PROG_CC
  AC_PROG_YACC
  AC_CONFIG_FILES(Makefile)
  $ cat Makefile.am
  bin_PROGRAMS = foo bar
  foo_SOURCES = foo.y
  bar_SOURCES = bar.y
  my_YFLAGS = -d
  AM_YFLAGS = $(my_YFLAGS)
  bar_YFLAGS = $(my_YFLAGS)
  $ aclocal
  $ automake -a
  $ egrep '(foo|bar).h\.*:' Makefile.in # no match :-(
  $ sed -i 's/$(my_YFLAGS)/-d/' Makefile.am 
  $ automake
  $ egrep '(foo|bar)\.h.*:' Makefile.in # now as expected
  bar-bar.h: bar-bar.c
  foo.h: foo.c

Not sure if this bug is worth fixing, but having it reported in the bug
database won't hurt, either (and I might anyway attempt a fix soonish).

Regards,
  Stefano