Re: gdb/2226: Build failure of GDB CVS with SVN GCC (4.3.0)

The following reply was made to PR gdb/2226; it has been noted by GNATS.

From: Gabriel Dos Reis <gdr@xxxxxxxxxxx>
To: Daniel Jacobowitz <drow@xxxxxxxxx>
Cc: gdb-gnats@xxxxxxxxxxxxxxxxxx
Subject: Re: gdb/2226: Build failure of GDB CVS with SVN GCC (4.3.0)
Date: 12 Feb 2007 19:39:13 -0600

 Daniel Jacobowitz <drow@xxxxxxxxx> writes:
 
 | On Sat, Feb 10, 2007 at 07:04:54AM -0000, gdr@xxxxxxxxxxx wrote:
 | > Attempt to build GDB sources from CVS with SVN GCC (4.3.0, 20070209) 
results in failure.
 | > The build failure is caused by a "may be used uninitialized"
 | > that is turned into error because of -Werror in GDB
 | > makefile.
 | 
 | ... where? :-)  I do not have SVN GCC handy.
 
 Hi Dan,
 
    Thanks for looking into this.
 
 The build failed in p-valprint.c, caused by warnings turned into
 errors:
 
 /home/gdr/redhat/combined/gdb/p-valprint.c: In function 
'pascal_object_print_value_fields':
 /home/gdr/redhat/combined/gdb/p-valprint.c:644: warning: 
'tmp_obstack.alloc_failed' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:644: warning: 
'tmp_obstack.maybe_empty_object' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:644: warning: 
'tmp_obstack.use_extra_arg' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:644: warning: 
'tmp_obstack.extra_arg' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:644: warning: 'tmp_obstack.freefun' 
may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:644: warning: 
'tmp_obstack.chunkfun' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:644: warning: 
'tmp_obstack.alignment_mask' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:644: warning: 'tmp_obstack.temp' 
may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:644: warning: 
'tmp_obstack.chunk_limit' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:644: warning: 
'tmp_obstack.next_free' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:644: warning: 
'tmp_obstack.object_base' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:644: warning: 'tmp_obstack.chunk' 
may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:644: warning: 
'tmp_obstack.chunk_size' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c: In function 
'pascal_object_print_value':
 /home/gdr/redhat/combined/gdb/p-valprint.c:813: warning: 
'tmp_obstack.alloc_failed' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:813: warning: 
'tmp_obstack.maybe_empty_object' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:813: warning: 
'tmp_obstack.use_extra_arg' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:813: warning: 
'tmp_obstack.extra_arg' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:813: warning: 'tmp_obstack.freefun' 
may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:813: warning: 
'tmp_obstack.chunkfun' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:813: warning: 
'tmp_obstack.alignment_mask' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:813: warning: 'tmp_obstack.temp' 
may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:813: warning: 
'tmp_obstack.chunk_limit' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:813: warning: 
'tmp_obstack.next_free' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:813: warning: 
'tmp_obstack.object_base' may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:813: warning: 'tmp_obstack.chunk' 
may be used uninitialized in this function
 /home/gdr/redhat/combined/gdb/p-valprint.c:813: warning: 
'tmp_obstack.chunk_size' may be used uninitialized in this function
 
 
 
 BTW, I looked into the docs for information about how to suppress the
 build of support for Pascal (and other languages I'm not interested
 in).  --enable-languages=c++ did not cut it.  Is there a "community
 knowledge" document somewhere that contains that kind of stuff?
 
 Thanks!
 
 -- Gaby