This patch
http://gcc.gnu.org/ml/gcc-patches/2005-03/msg01484.html
causes
./xgcc -B./ -B/usr/gcc-3.4/x86_64-unknown-linux-gnu/bin/ -isystem /usr/gcc-3.4/x
86_64-unknown-linux-gnu/include -isystem /usr/gcc-3.4/x86_64-unknown-linux-gnu/s
ys-include -L/export/build/gnu/gcc-3.4/build-x86_64-linux/gcc/../ld -O2 -DIN_GC
C -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-sty
le-definition -isystem ./include -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D_
_GCC_FLOAT_NOT_NEEDED -I. -I -I/net/gnu/export/gnu/src/gcc-3.4/gcc/gcc -I/net/g
nu/export/gnu/src/gcc-3.4/gcc/gcc/ -I/net/gnu/export/gnu/src/gcc-3.4/gcc/gcc/../
include -DL_gcov -c /net/gnu/export/gnu/src/gcc-3.4/gcc/gcc/libgcov.c -o libgc
c/./_gcov.o
In file included from /net/gnu/export/gnu/src/gcc-3.4/gcc/gcc/gcov-io.h:240,
from /net/gnu/export/gnu/src/gcc-3.4/gcc/gcc/libgcov.c:51:
./auto-host.h:185:1: warning: "HAVE_DECL_GETOPT" redefined
In file included from /net/gnu/export/gnu/src/gcc-3.4/gcc/gcc/libgcov.c:37:
/net/gnu/export/gnu/src/gcc-3.4/gcc/gcc/tsystem.h:40:1: warning: this is the loc
ation of the previous definition
--
Summary: gcov-io.h compilation warning
Product: gcc
Version: 3.4.4
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: other
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: hjl at lucon dot org
CC: gcc-bugs at gcc dot gnu dot org,janis187 at us dot ibm
dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21388
