http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55651
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2012-12-12 Component|c |driver Ever Confirmed|0 |1 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> 2012-12-12 10:07:21 UTC --- It looks like cc1 treats /usr/lib64/gcc/x86_64-suse-linux/4.6/cc1 -quiet -v "" t.c -quiet -dumpbase t.c -mtune=generic -march=x86-64 -auxbase t -version -o /tmp/ccYYppXF.s as reading from stdin? Yes, it does, gcc -Wp, -c t.c < /dev/null works just fine. Somewhat odd behavior though ;) Confirmed. The driver should either drop empty -Wp, or error.