https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79609
Bug ID: 79609
Summary: C address space qualifiers not available under
-fno-asm, even for system headers and __extension__
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: roland at gnu dot org
CC: rth at gcc dot gnu.org
Target Milestone: ---
It's impossible to use __seg_fs et al under -fno-asm, which is implied by e.g.
-std=c11. It's ironic that it's still possible to use __asm or __asm__ under
-fno-asm, but not another feature not called "asm" that also uses an __ prefix.
IMHO __seg_fs et al should be allowed in a decl/expression that uses
__extension__. That's what __extension__ is for.
There could also be a system header exception, but those are awful and
shouldn't be added for new syntax not already wrongly used in someone's system
headers. Having header writers use __extension__ judiciously is much better.
