X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=lib%2Flog.c;h=4c824d4c37823bb092efd2cc37a4f9ae8c4605d2;hb=daf7f8c02242c535d596231e2f655109b97fa2bc;hp=960ec82b5c4b05e54d3c32149bbe6e33ef088ecd;hpb=0d37a2e60081400c4ecefbb106e8a1749b3de2b0;p=gnulib.git

diff --git a/lib/log.c b/lib/log.c
index 960ec82b5..4c824d4c3 100644
--- a/lib/log.c
+++ b/lib/log.c
@@ -23,9 +23,16 @@ double
 log (double x)
 #undef log
 {
-  /* Work around the OSF/1 5.1 bug.  */
-  if (x == 0.0)
-    /* Return -Infinity.  */
-    return -1.0 / 0.0;
+  if (x <= 0.0)
+    {
+      /* Work around the OSF/1 5.1 bug.  */
+      if (x == 0.0)
+        /* Return -Infinity.  */
+        return -1.0 / 0.0;
+      /* Work around the NetBSD 5.1, Solaris 11 2011-11 bug.  */
+      else /* x < 0.0 */
+        /* Return NaN.  */
+        return 0.0 / 0.0;
+    }
   return log (x);
 }