cosmocc linking issues with llrintl, llround, and llroundl

[G4Vi]

#include <math.h>
#include <stdio.h>

int main(void) {
    printf("%lld\n", llrintl(0));
    printf("%p\n", &llround);
    printf("%p\n", &llroundl);
}

x86_64-unknown-cosmo-cc -o try llrint_friends.c 
/home/sample/repos/cosmopolitan/cosmocc/bin/../libexec/gcc/x86_64-linux-cosmo/12.3.0/ld.bfd: /tmp/cc9fqpwc.o: in function `main':
llrint_friends.c:(.text+0x21): undefined reference to `llrintl'
/home/sample/repos/cosmopolitan/cosmocc/bin/../libexec/gcc/x86_64-linux-cosmo/12.3.0/ld.bfd: llrint_friends.c:(.text+0x3c): undefined reference to `llround'
/home/sample/repos/cosmopolitan/cosmocc/bin/../libexec/gcc/x86_64-linux-cosmo/12.3.0/ld.bfd: llrint_friends.c:(.text+0x50): undefined reference to `llroundl'
collect2: error: ld returned 1 exit status

llrintl appears to not exists at all. llround and llroundl can be called, but not addressed. Perl's Configure tests for the existence of these functions by attempting to address them.