log10: Work around OSF/1 5.1 bug.

[gnulib.git] / doc / posix-functions / log10.texi

diff --git a/doc/posix-functions/log10.texi b/doc/posix-functions/log10.texi
index 0674fdb..34936d1 100644 (file)
--- a/doc/posix-functions/log10.texi
+++ b/doc/posix-functions/log10.texi
@@ -8,6 +8,9 @@ Gnulib module: log10
 
 Portability problems fixed by Gnulib:
 @itemize
+@item
+This function returns a wrong value for a minus zero argument on some platforms:
+OSF/1 5.1.
 @end itemize
 
 Portability problems not fixed by Gnulib: