https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67925
Mikhail Maltsev <miyuki at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |documentation
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-10-11
CC| |miyuki at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #2 from Mikhail Maltsev <miyuki at gcc dot gnu.org> ---
OMG. IIUC, this limitation was fixed in GCC 3.x (early 2000s):
http://hubicka.blogspot.ru/2014/04/linktime-optimization-in-gcc-1-brief.html