regex_internal.h: define __attribute_warn_unused_result__

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

diff --git a/doc/posix-functions/sigaltstack.texi b/doc/posix-functions/sigaltstack.texi
index 53d91c7..2ad7995 100644 (file)
--- a/doc/posix-functions/sigaltstack.texi
+++ b/doc/posix-functions/sigaltstack.texi
@@ -2,7 +2,7 @@
 @section @code{sigaltstack}
 @findex sigaltstack
 
-POSIX specification: @url{http://www.opengroup.org/susv3xsh/sigaltstack.html}
+POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/sigaltstack.html}
 
 Gnulib module: ---
 
@@ -16,5 +16,11 @@ Portability problems not fixed by Gnulib:
 This function is missing on some platforms:
 Cygwin, mingw, Interix 3.5, BeOS.
 @item
-@code{sigaltstack} doesn't work on HP-UX 11/IA-64 and OpenBSD 3.6/Sparc64.
+@code{sigaltstack} doesn't work on HP-UX 11/IA-64 and OpenBSD
+3.6/Sparc64.
+@item
+This function interprets the @code{ss_sp} member of @code{stack_t} as
+the upper bound instead of the lower bound of the alternate stack on
+some platforms:
+Irix 6.5
 @end itemize