sys_uio: Make <sys/uio.h> self-contained.

* lib/sys_uio.in.h: Include <sys/types.h> before <sys/uio.h>.
* doc/posix-headers/sys_uio.texi: Mention the OpenBSD problem.

diff --git a/ChangeLog b/ChangeLog
index 987b46e..796a2ba 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2011-04-30  Bruno Haible  <bruno@clisp.org>
 
+       sys_uio: Make <sys/uio.h> self-contained.
+       * lib/sys_uio.in.h: Include <sys/types.h> before <sys/uio.h>.
+       * doc/posix-headers/sys_uio.texi: Mention the OpenBSD problem.
+
+2011-04-30  Bruno Haible  <bruno@clisp.org>
+
        sys_socket: Ensure 'struct iovec' definition.
        * lib/sys_socket.in.h: Include <sys/uio.h> also on platforms that have
        <sys/socket.h>.

diff --git a/doc/posix-headers/sys_uio.texi b/doc/posix-headers/sys_uio.texi
index bc48254..1f8c8a2 100644 (file)
--- a/doc/posix-headers/sys_uio.texi
+++ b/doc/posix-headers/sys_uio.texi
@@ -10,6 +10,10 @@ Portability problems fixed by Gnulib:
 @item
 This header file is missing on some platforms:
 mingw.
+@item
+This header file is not self-contained (it requires @code{<sys/types.h>} to be
+included first) on some platforms:
+OpenBSD 4.4.
 @end itemize
 
 Portability problems not fixed by Gnulib:

diff --git a/lib/sys_uio.in.h b/lib/sys_uio.in.h
index faad3de..0eaff61 100644 (file)
--- a/lib/sys_uio.in.h
+++ b/lib/sys_uio.in.h
@@ -24,6 +24,9 @@
 
 #if @HAVE_SYS_UIO_H@
 
+/* On OpenBSD 4.4, <sys/uio.h> assumes prior inclusion of <sys/types.h>.  */
+# include <sys/types.h>
+
 /* The include_next requires a split double-inclusion guard.  */
 # @INCLUDE_NEXT@ @NEXT_SYS_UIO_H@