[Bug bootstrap/56128] [4.8 Regression] No way to disable build of libsanitizer

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56128

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-01-28
                 CC|                            |aoliva at gcc dot gnu.org,
                   |                            |bonzini at gnu dot org,
                   |                            |jakub at gcc dot gnu.org,
                   |                            |kcc at gcc dot gnu.org
     Ever Confirmed|0                           |1

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-01-28 13:06:40 UTC ---
I think we should both avoid linux/futex.h includes (both in libsanitizer and
testsuite/g++.dg/asan/, both inherited from upstream), either by doing a
configure test for it and only including it if it works properly, or just do
what libgomp or libitm do, don't include <linux/futex.h> and instead define
FUTEX_{WAIT,WAKE} directly, and also have some --disable-libsanitizer configury
option, CCing some build maintainers for that on where and how should that be
done.