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build failure bootstrapping trunk on Ubuntu 9.10


I'm getting this build failure with latest trunk, as of the composing of this email:

../gcc-trunk/configure --prefix=/home/matt --enable-stage1-checking=all --enable-bootstrap --enable-lto --enable-languages=c,c++../gcc-trunk/configure --prefix=/home/matt --enable-stage1-checking=all --enable-bootstrap --enable-lto --enable-languages=c,c++

make -j5

.
.
.
/home/matt/src/gcc-obj/./prev-gcc/xgcc -B/home/matt/src/gcc-obj/./prev-gcc/ -B/home/matt/x86_64-unknown-linux-gnu/bin/ -B/home/matt/x86_64-unknown-linux-gnu/bin/ -B/home/matt/x86_64-unknown-linux-gnu/lib/ -isystem /home/matt/x86_64-unknown-linux-gnu/include -isystem /home/matt/x86_64-unknown-linux-gnu/sys-include -c -g -O2 -fprofile-use -DIN_GCC -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -Wold-style-definition -Wc++-compat -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc-trunk/gcc -I../../gcc-trunk/gcc/. -I../../gcc-trunk/gcc/../include -I../../gcc-trunk/gcc/../libcpp/include -I../../gcc-trunk/gcc/../libdecnumber -I../../gcc-trunk/gcc/../libdecnumber/bid -I../libdecnumber -DCLOOG_PPL_BACKEND -I/usr/include/libelf ../../gcc-trunk/gcc/ira-lives.c -o ira-lives.o


cc1: warnings being treated as errors
../../gcc-trunk/gcc/ira-lives.c: In function ira_implicitly_set_insn_hard_regs:
../../gcc-trunk/gcc/ira-lives.c:748:13: error: regno may be used uninitialized in this function




It looks like ira-lives.c:763 has some ambiguous parenthesizing that may be causing the warning that is failing the build). Note that the warning doesn't happen on a similar piece of code on line 830 in the same file.

I've been fighting with the configure process for a few days and finally got past that to this issue. So, any help is greatly appreciated :)

Thanks!

--
tangled strands of DNA explain the way that I behave.
http://www.clock.org/~matt


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