strtod: support coreutils better

* lib/strtod.c (underlying_strtod): Just invoke the underlying strtod.
HAVE_RAW_DECL_STRTOD might not be correct in coreutils, which
disables the raw decl checks.  This assumes there is an underlying
strtod, but that's a safe assumption these days.

1 files changed, 3 insertions, 16 deletions

diff --git a/lib/strtod.c b/lib/strtod.c
index 5c43b4f564..cf59cd5b83 100644
--- a/lib/strtod.c
+++ b/lib/strtod.c
@@ -344,24 +344,11 @@ strtod (const char *nptr, char **endptr)
   return negative ? -num : num;
 }
 
-/* The "underlying" strtod implementation.  This must be defined
+/* The underlying strtod implementation.  This must be defined
    after strtod because it #undefs strtod.  */
 static double
 underlying_strtod (const char *nptr, char **endptr)
 {
-  if (HAVE_RAW_DECL_STRTOD)
-    {
-      /* Prefer the native strtod if available.  Usually it should
-         work and it should give more-accurate results than our
-         approximation.  */
-      #undef strtod
-      return strtod (nptr, endptr);
-    }
-  else
-    {
-      /* Approximate strtod well enough for this module.  There's no
-         need to handle anything but finite unsigned decimal
-         numbers with nonnull ENDPTR.  */
-      return parse_number (nptr, 10, 10, 1, 'e', endptr);
-    }
+#undef strtod
+  return strtod (nptr, endptr);
 }