Remove make preinstall

A speciality of the RTEMS build system was the make preinstall step.  It
copied header files from arbitrary locations into the build tree.  The
header files were included via the -Bsome/build/tree/path GCC command
line option.

This has at least seven problems:

* The make preinstall step itself needs time and disk space.

* Errors in header files show up in the build tree copy.  This makes it
  hard for editors to open the right file to fix the error.

* There is no clear relationship between source and build tree header
  files.  This makes an audit of the build process difficult.

* The visibility of all header files in the build tree makes it
  difficult to enforce API barriers.  For example it is discouraged to
  use BSP-specifics in the cpukit.

* An introduction of a new build system is difficult.

* Include paths specified by the -B option are system headers.  This
  may suppress warnings.

* The parallel build had sporadic failures on some hosts.

This patch removes the make preinstall step.   All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc.  Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.

The new cpukit include directories are:

* cpukit/include

* cpukit/score/cpu/@RTEMS_CPU@/include

* cpukit/libnetworking

The new BSP include directories are:

* bsps/include

* bsps/@RTEMS_CPU@/include

* bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include

There are build tree include directories for generated files.

The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.

The "bootstrap -p" option was removed.  The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.

Update #3254.

1 files changed, 71 insertions, 0 deletions

diff --git a/cpukit/include/rtems/posix/mqueue.h b/cpukit/include/rtems/posix/mqueue.h
new file mode 100644
index 0000000000..cdf94514af
--- /dev/null
+++ b/cpukit/include/rtems/posix/mqueue.h
@@ -0,0 +1,71 @@
+/**
+ * @file
+ * 
+ * @brief POSIX Message Queues Private Private Support
+ *
+ * This include file contains all the private support information for
+ * POSIX Message Queues.
+ * 
+ * The structure of the routines is identical to that of POSIX
+ * Message_queues to leave the option of having unnamed message
+ * queues at a future date.  They are currently not part of the
+ * POSIX standard but unnamed message_queues are.  This is also
+ * the reason for the apparently unnecessary tracking of
+ * the process_shared attribute.  [In addition to the fact that
+ * it would be trivial to add pshared to the mq_attr structure
+ * and have process private message queues.]
+ *
+ * This code ignores the O_RDONLY/O_WRONLY/O_RDWR flag at open
+ * time.
+ */
+
+/*
+ *  COPYRIGHT (c) 1989-2011.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef _RTEMS_POSIX_MQUEUE_H
+#define _RTEMS_POSIX_MQUEUE_H
+
+#include <signal.h>
+#include <mqueue.h> /* struct mq_attr */
+#include <rtems/score/coremsg.h>
+#include <rtems/score/object.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ *  @defgroup POSIX_MQUEUE_P Message Queues Private Support
+ *
+ *  @ingroup POSIXAPI
+ * 
+ */
+/**@{**/
+
+/*
+ *  Data Structure used to manage a POSIX message queue
+ */
+
+typedef struct {
+   Objects_Control             Object;
+   CORE_message_queue_Control  Message_queue;
+   bool                        linked;
+   uint32_t                    open_count;
+   struct sigevent             notification;
+   int                         oflag;
+}  POSIX_Message_queue_Control;
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/*  end of include file */