What are these test result differences?

[Kazu Hirata]

Hi,

While looking at test results from other people, I noticed that there
are a large number of differences between

http://gcc.gnu.org/ml/gcc-testresults/2004-11/msg00048.html

http://gcc.gnu.org/ml/gcc-testresults/2004-11/msg00058.html

both of which are on i686-pc-linux-gnu.  Most of the differences seem
to come from warning-related stuff like

FAIL: gcc.dg/Wbad-function-cast-1.c  (test for warnings, line 41)
FAIL: gcc.dg/Wconversion-2.c  (test for warnings, line 42)
FAIL: gcc.dg/Wswitch-2.c enum e4 (test for warnings, line 16)
FAIL: gcc.dg/Wswitch-enum.c enum e1 (test for warnings, line 22)
FAIL: gcc.dg/Wswitch.c enum e1 (test for warnings, line 22)
FAIL: gcc.dg/assign-warn-1.c  (test for warnings, line 15)

Actually, I also get these FAILs on i686-pc-linux-gnu running Fedora
Core 2.  Am I missing something?  Do I need some special configure
option?

Thanks in advance,

Kazu Hirata