Ada build failure?

[Nathanael Nerode]

With HEAD on i686-pc-linux-gnu, doing
configure --enable-languages=ada
make bootstrap

I'm getting this failure building stage 2:

stage1/xgcc -Bstage1/ -B/usr/local/i686-pc-linux-gnu/bin/ -c -g -O2      -gnatpg -gnata -g -O1 -fno-inline \
 -I- -I. -Iada -I../../gcc-main/gcc/ada ../../gcc-main/gcc/ada/a-except.adb -o ada/a-except.o
+===========================GNAT BUG DETECTED==============================+
| 3.5.0 20040813 (experimental) (i686-pc-linux-gnu) Storage_Error stack overflow (or erroneous memory access)|
| Error detected at a-except.adb:47:17                                     |
| Please submit a bug report; see http://gcc.gnu.org/bugs.html.            |
| Include the entire contents of this bug box in the report.               |
| Include the exact gcc or gnatmake command that you entered.              |
| Also include sources listed below in gnatchop format                     |
| (concatenated together with no headers between files).                   |
+==========================================================================+

gcc-3.4 (and the corresponding gnatbind, etc.) was used to bootstrap.

Is this a known problem?....

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