[Bug other/54691] [4.8 Regression] --enable-checking=valgrind doesn't build

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54691

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-10-12
                 CC|                            |hjl.tools at gmail dot com
     Ever Confirmed|0                           |1

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> 2012-10-12 14:08:08 UTC ---
PIC detection failed with valgrind:

configure:8446:
/export/build/gnu/gcc-lto-valgrind/build-x86_64-linux/./gcc/xgcc
-B/export/build/gnu/gcc-lto-valgrind/build-x86_64-linux/./gcc/
-B/usr/local/x86_64-unknown-linux-gnu/bin/
-B/usr/local/x86_64-unknown-linux-gnu/lib/ -isystem
/usr/local/x86_64-unknown-linux-gnu/include -isystem
/usr/local/x86_64-unknown-linux-gnu/sys-include  -m32 -c -g -O2 -pthread  -fPIC
-DPIC -DPIC conftest.c >&5
==15652== Invalid read of size 8
==15652==    at 0xEF7C94: search_line_sse42(unsigned char const*, unsigned char
const*) (lex.c:464)
==15652==    by 0xEF7F48: _cpp_clean_line (lex.c:742)