Doc tweak.

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

diff --git a/doc/posix-functions/iswblank.texi b/doc/posix-functions/iswblank.texi
index 9ea0d91..d229808 100644 (file)
--- a/doc/posix-functions/iswblank.texi
+++ b/doc/posix-functions/iswblank.texi
@@ -4,10 +4,13 @@
 
 POSIX specification: @url{http://www.opengroup.org/susv3xsh/iswblank.html}
 
-Gnulib module: ---
+Gnulib module: wctype
 
 Portability problems fixed by Gnulib:
 @itemize
+@item
+This function returns 0 for all possible arguments on some platforms:
+Linux libc5.
 @end itemize
 
 Portability problems not fixed by Gnulib: