Bugzilla Bug 191363

I tried to build a i686 stage 3 from a i686 stage 2 and I got the following
error:

 gcc -O2 -march=i686 -pipe -O2 -march=i686 -pipe -DNDEBUG -funsigned-char
-fno-strict-aliasing -Wall -DVERSION=\"2.4.32\"
-DLOCALEDIR=\"/usr/share/locale\" -DPACKAGE=\"attr\" -I./include -D_GNU_SOURCE
-D_FILE_OFFSET_BITS=64 -O2 -march=i686 -pipe -DNDEBUG -funsigned-char
-fno-strict-aliasing -Wall -DVERSION=\"2.4.32\"
-DLOCALEDIR=\"/usr/share/locale\" -DPACKAGE=\"attr\" -I../include -D_GNU_SOURCE
-D_FILE_OFFSET_BITS=64 -c next_line.c -o next_line.o >/dev/null 2>&1
/usr/bin/libtool --mode=link gcc  -o libmisc.la quote.lo unquote.lo
high_water_alloc.lo next_line.lo
i486-pc-linux-gnu-ar cru .libs/libmisc.a .libs/quote.o .libs/unquote.o
.libs/high_water_alloc.o .libs/next_line.o
/usr/bin/libtool: line 5988: i486-pc-linux-gnu-ar: command not found
gmake[1]: *** [libmisc.la] Error 127
make: *** [default] Error 2
 *
 * ERROR: sys-apps/attr-2.4.32 failed.
 * Call stack:
 *   ebuild.sh, line 1654:   Called dyn_compile
 *   ebuild.sh, line 990:   Called qa_call 'src_compile'
 *   ebuild.sh, line 44:   Called src_compile
 *   attr-2.4.32.ebuild, line 44:   Called die

I tried exporting AR=ar but that didn't seem to help. Rebuilding libtool solved
it though.

I'm not sure what the best solution is but one possible fix is to add 
RDEPEND="build? ( !sys-apps/attr )" to the libtool ebuild. That will cause the
merge order to automatically adjust so that libtool is rebuilt before attr is
built. The blocker idea might seem like a strange approach if you're not
familiar with it but it's already being used for bug 187866 and bug 88777. For
some explanation about this approach, refer to this blog entry:

http://planet.gentoo.org/developers/zmedico/2007/08/19/using_blockers_to_adjust_merge_order

*** This bug has been marked as a duplicate of bug 158068 ***

err, duped, to wrong bug

*** This bug has been marked as a duplicate of bug 158040 ***