musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/src/stdio/vfprintf.c b/src/stdio/vfprintf.c
index 6525938f..4a2752b2 100644
--- a/src/stdio/vfprintf.c
+++ b/src/stdio/vfprintf.c

@@ -200,7 +200,7 @@ static int fmt_fp(FILE *f, long double y, int w, int p, int fl, int t)

char ebuf0[3*sizeof(int)], *ebuf=&ebuf0[3*sizeof(int)], *estr;

pl=1;

- if (y<0 || 1/y<0) {

+ if (signbit(y)) {

y=-y;

} else if (fl & MARK_POS) {

prefix+=3;