I'm aware of PR13470, although this seems like another issue, using gcc-3.3.5 or gcc-3.4.3 as bootstrap compiler, the build fails in stage3. Seen with CVS HEAD 20050110.
Matthias stage2/xgcc -Bstage2/ -B/usr/lib/gcc-snapshot/alpha-linux-gnu/bin/ -c -O2 -gnatpg -gnata -I- -I. -Iada - I../../src/gcc/ada ../../src/gcc/ada/ada.ads -o ada/ada.o stage2/xgcc -Bstage2/ -B/usr/lib/gcc-snapshot/alpha-linux-gnu/bin/ -c -O2 -gnatpg -gnata -I- -I. -Iada - I../../src/gcc/ada ../../src/gcc/ada/a-charac.ads -o ada/a-charac.o stage2/xgcc -Bstage2/ -B/usr/lib/gcc-snapshot/alpha-linux-gnu/bin/ -c -O2 -gnatpg -gnata -I- -I. -Iada - I../../src/gcc/ada ../../src/gcc/ada/a-chlat1.ads -o ada/a-chlat1.o stage2/xgcc -Bstage2/ -B/usr/lib/gcc-snapshot/alpha-linux-gnu/bin/ -c -O2 -gnatpg -gnata -g -O1 -fno-inl ine \ -I- -I. -Iada -I../../src/gcc/ada ../../src/gcc/ada/a-except.adb -o ada/a-except.o +===========================GNAT BUG DETECTED==============================+ | 4.0.0 20050110 (experimental) (alpha-unknown-linux-gnu) Assert_Failure atree.adb:812| | Error detected at s-stalib.ads:66:4 | | 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). | +==========================================================================+ Please include these source files with error report Note that list may not be accurate in some cases, so please double check that the problem can still be reproduced with the set of files listed. list may be incomplete compilation abandoned make[4]: *** [ada/a-except.o] Error 1 -- Summary: [4.0 regression] ada bootstrap failure on alpha-linux Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: ada AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: debian-gcc at lists dot debian dot org CC: gcc-bugs at gcc dot gnu dot org GCC host triplet: alpha-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19456