https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82861
Bug ID: 82861
Summary: 'long double sqrtf128(long double)' conflicts with
built-in declaration 'long double sqrtf128(long
double)' [-Wbuiltin-declaration-mismatch]
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: nsz at gcc dot gnu.org
Target Milestone: ---
on aarch64 i get nonsense warning when declaring f128 apis:
$ cat a.cc
extern "C" long double sqrtf128(long double) throw();
long double f(long double x) { return sqrtf128(x); }
$ g++ -Wall -S a.cc
a.cc:1:24: warning: declaration of 'long double sqrtf128(long double)'
conflicts with built-in declaration 'long double sqrtf128(long double)'
[-Wbuiltin-declaration-mismatch]
extern "C" long double sqrtf128(long double) throw();
^~~~~~~~
glibc math tests fail to build because of this.
