[Bug driver/55781] -shared-libgcc does not completely undo -static-libgcc

[maskray at google dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55781

Fangrui Song <maskray at google dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |maskray at google dot com

--- Comment #1 from Fangrui Song <maskray at google dot com> ---
Still the case with gcc 9

% gcc a.o -static-libgcc -shared-libgcc '-###' |& grep -P --color '[-]lgcc\S+'
...  -lgcc -lgcc_eh -lc -lgcc -lgcc_eh

% g++ a.o -static-libgcc -shared-libgcc '-###' |& grep -P --color '[-]lgcc\S+'
... -lgcc -lgcc_eh -lc -lgcc -lgcc_eh

That is probably because it is difficult to take the last argument of
-static-libgcc and -shared-libgcc?

% gcc -dumpspecs
...
*libgcc:
%{static|static-libgcc|static-pie:-lgcc
-lgcc_eh}%{!static:%{!static-libgcc:%{!static-pie:%{!shared-libgcc:-lgcc
--push-state --as-needed -lgcc_s --pop-state}%{shared-libgcc:-lgcc_s%{!shared:
-lgcc}}}}}