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gcc knows about sincos even though NetBSD doesn't
Hi!
With -current as of about a week ago (gcc 10.3.0) I see a confusing
warning.
The following test input:
#include <limits.h>
int main() {
return sincos();
}
when compiled with "gcc -o test test.c" gives:
test.c: In function ‘main’:
test.c:4:8: warning: implicit declaration of function ‘sincos’ [-Wimplicit-function-declaration]
4 | return sincos();
| ^~~~~~
test.c:4:8: warning: incompatible implicit declaration of built-in function ‘sincos’
test.c:2:1: note: include ‘<math.h>’ or provide a declaration of ‘sincos’
1 | #include <limits.h>
+++ |+#include <math.h>
2 |
test.c:4:8: error: too few arguments to function ‘sincos’
4 | return sincos();
| ^~~~~~
The first part is fine, but the warning to include math.h is
misguided, since NetBSD does not have sincos at all.
(see also https://gitlab.gnome.org/GNOME/gtk/-/issues/5070 )
Thomas
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