https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98021
--- Comment #11 from eggert at cs dot ucla.edu ---
(In reply to Andreas Schwab from comment #10)
> See the #line directive.
GCC already treats that case differently, and it can continue to do so.
Come to think of it, GCC works better with #line than it does without. GCC
should treat the ordinary case more like it already treats the #line case,
except that GCC shouldn't say "warning" twice of course (it sounds like an old
episode of "Lost in Space" :-).
::::::::::::::
foo.c
::::::::::::::
#include "bar.h"
::::::::::::::
bar.h
::::::::::::::
#warning "You are too close to the curb"
#line 100 "baz.h"
#warning "Tomorrow is the deadline for paying taxes"
$ gcc -S foo.c
In file included from foo.c:1:
bar.h:1:2: warning: #warning "You are too close to the curb" [-Wcpp]
1 | #warning "You are too close to the curb"
| ^~~~~~~
In file included from foo.c:1:
baz.h:100:2: warning: #warning "Tomorrow is the deadline for paying taxes"
[-Wcpp]
