log2f-ieee: Work around test failure on NetBSD 5.1 and Solaris 10.

[gnulib.git] / doc / posix-functions / log2f.texi

diff --git a/doc/posix-functions/log2f.texi b/doc/posix-functions/log2f.texi
index ac6d182..f137ed1 100644 (file)
--- a/doc/posix-functions/log2f.texi
+++ b/doc/posix-functions/log2f.texi
@@ -4,9 +4,9 @@
 
 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/log2f.html}
 
-Gnulib module: log2f
+Gnulib module: log2f or log2f-ieee
 
-Portability problems fixed by Gnulib:
+Portability problems fixed by either Gnulib module @code{log2f} or @code{log2f-ieee}:
 @itemize
 @item
 This function is missing on some platforms:
@@ -26,6 +26,13 @@ This function returns slightly wrong values for exact powers of 2 on some platfo
 Cygwin 1.7.9.
 @end itemize
 
+Portability problems fixed by Gnulib module @code{log2f-ieee}:
+@itemize
+@item
+This function returns a wrong value for a negative argument on some platforms:
+NetBSD 5.1, Solaris 11 2011-11.
+@end itemize
+
 Portability problems not fixed by Gnulib:
 @itemize
 @end itemize