doc: Improve doc about gl_EARLY.

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

diff --git a/doc/posix-functions/acosf.texi b/doc/posix-functions/acosf.texi
index ef62e53..a1859fe 100644 (file)
--- a/doc/posix-functions/acosf.texi
+++ b/doc/posix-functions/acosf.texi
@@ -15,4 +15,7 @@ Portability problems not fixed by Gnulib:
 @item
 This function is missing on some platforms:
 Minix 3.1.8, AIX 5.1, Solaris 9.
+@item
+This function is only defined as a macro with arguments on some platforms:
+MSVC 9.
 @end itemize