use #if LDBL_MANT_DIG == ... instead of custom LD80 etc macros

[libm] / src / math / roundl.c

diff --git a/src/math/roundl.c b/src/math/roundl.c
index b92b8fb..ce56e8a 100644 (file)
--- a/src/math/roundl.c
+++ b/src/math/roundl.c
@@ -26,7 +26,7 @@
  */
 
 #include "libm.h"
-#if LD64
+#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
 long double roundl(long double x)
 {
        return round(x);