X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=inline;f=doc%2Fposix-functions%2Fperror.texi;h=89dbd4eb1b970cac919812ad9d6609c4a7690d49;hb=06b335ade65c8fe60fee8b9e18b670bb54ed924a;hp=d08f1d04273413036c033f88ff6fb19bf384d60c;hpb=2b6c08c775ae4e80b52aa41058ea5939f778b44b;p=gnulib.git

diff --git a/doc/posix-functions/perror.texi b/doc/posix-functions/perror.texi
index d08f1d042..89dbd4eb1 100644
--- a/doc/posix-functions/perror.texi
+++ b/doc/posix-functions/perror.texi
@@ -2,14 +2,37 @@
 @section @code{perror}
 @findex perror
 
-POSIX specification: @url{http://www.opengroup.org/susv3xsh/perror.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/perror.html}
 
-Gnulib module: ---
+Gnulib module: perror
 
 Portability problems fixed by Gnulib:
 @itemize
+@item
+This function does not support the error values that are specified by POSIX
+but not defined by the system, on some platforms:
+OpenBSD 4.0, OSF/1 5.1, Cygwin 1.5.x, mingw, MSVC 9.
+@item
+This function treats @code{errno} of 0 like failure, although POSIX
+requires that the message declare it as a success, on some platforms:
+FreeBSD 8.2, OpenBSD 4.7, Mac OS X 10.5.
+@item
+This function clobbers the @code{strerror} buffer on some platforms:
+Cygwin 1.7.9.
+@item
+This function fails to print a useful a string for out-of-range integers on
+some platforms:
+HP-UX 11, IRIX 6.5, Solaris 8.
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
+@item
+POSIX requires that this function set the stream error bit (detected
+by @code{ferror}) on write failure, but not all platforms do this:
+glibc 2.13, cygwin 1.7.9.
+@item
+POSIX requires that this function not alter stream orientation, but
+the gnulib replacement locks in byte orientation and fails on wide
+character streams.
 @end itemize