https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68115
John David Anglin <danglin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ian at airs dot com
--- Comment #4 from John David Anglin <danglin at gcc dot gnu.org> ---
Well no, it exposes another issue in stage3:
/bin/sh ./libtool --tag=CC --mode=compile /test/gnu/gcc/objdir/./gcc/xgcc
-B/t
est/gnu/gcc/objdir/./gcc/ -B/opt/gnu64/gcc/gcc-6/hppa64-hp-hpux11.11/bin/
-B/opt
/gnu64/gcc/gcc-6/hppa64-hp-hpux11.11/lib/ -isystem
/opt/gnu64/gcc/gcc-6/hppa64-h
p-hpux11.11/include -isystem
/opt/gnu64/gcc/gcc-6/hppa64-hp-hpux11.11/sys-includ
e -DHAVE_CONFIG_H -I. -I../../../gcc/libbacktrace -I
../../../gcc/libbacktra
ce/../include -I ../../../gcc/libbacktrace/../libgcc -I ../libgcc
-funwind-tabl
es -frandom-seed=elf.lo -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-p
rototypes -Wold-style-definition -Wmissing-format-attribute -Wcast-qual -Werror
-g -O2 -c -o elf.lo ../../../gcc/libbacktrace/elf.c
libtool: compile: /test/gnu/gcc/objdir/./gcc/xgcc
-B/test/gnu/gcc/objdir/./gcc/
-B/opt/gnu64/gcc/gcc-6/hppa64-hp-hpux11.11/bin/
-B/opt/gnu64/gcc/gcc-6/hppa64-h
p-hpux11.11/lib/ -isystem /opt/gnu64/gcc/gcc-6/hppa64-hp-hpux11.11/include
-isys
tem /opt/gnu64/gcc/gcc-6/hppa64-hp-hpux11.11/sys-include -DHAVE_CONFIG_H -I.
-I.
./../../gcc/libbacktrace -I ../../../gcc/libbacktrace/../include -I
../../../gcc
/libbacktrace/../libgcc -I ../libgcc -funwind-tables -frandom-seed=elf.lo -W
-Wa
ll -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definiti
on -Wmissing-format-attribute -Wcast-qual -Werror -g -O2 -c
../../../gcc/libback
trace/elf.c -DPIC -o .libs/elf.o
In file included from ../../../gcc/libbacktrace/elf.c:44:0:
../../../gcc/libbacktrace/elf.c: In function 'backtrace_initialize':
../../../gcc/libbacktrace/internal.h:64:55: error: right-hand operand of comma
e
xpression has no effect [-Werror=unused-value]
#define __sync_bool_compare_and_swap(A, B, C) (abort(), 1)
^
../../../gcc/libbacktrace/elf.c:958:2: note: in expansion of macro
'__sync_bool_compare_and_swap'
__sync_bool_compare_and_swap (&state->syminfo_fn, NULL, elf_nosyms);
^
cc1: all warnings being treated as errors
make[3]: *** [elf.lo] Error 1
There are no HAVE_SYNC_FUNCTIONS checks in libbacktrace/elf.c to avoid use
of __sync functions.
