Install header files and pkg-config file for external modules

This patch installs the three header files that define the compositor
plugin interface as well as a pkg-config file.  This allows
building weston plugins outside the weston tree.  We currently don't make
any guarantees about the plugin API/ABI except that within a stable
branch we won't break it.

src/Makefile.am

@@ -2,6 +2,7 @@ bin_PROGRAMS = weston				\
 	$(weston_launch)
 
 AM_CPPFLAGS =					\
+	-I$(top_srcdir)/shared			\
 	-DDATADIR='"$(datadir)"'		\
 	-DMODULEDIR='"$(moduledir)"'		\
 	-DLIBEXECDIR='"$(libexecdir)"'		\
@@ -78,6 +79,16 @@ endif
 
 endif # BUILD_WESTON_LAUNCH
 
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = weston.pc
+
+westonincludedir = $(includedir)/weston
+westoninclude_HEADERS =				\
+	version.h				\
+	compositor.h				\
+	../shared/matrix.h			\
+	../shared/config-parser.h
+
 moduledir = @libdir@/weston
 module_LTLIBRARIES =				\
 	$(desktop_shell)			\

src/compositor.c

@@ -58,6 +58,7 @@
 #include "compositor.h"
 #include "../shared/os-compatibility.h"
 #include "git-version.h"
+#include "version.h"
 
 static struct wl_list child_process_list;
 static struct weston_compositor *segv_compositor;
@@ -3046,6 +3047,14 @@ weston_compositor_shutdown(struct weston_compositor *ec)
 	wl_event_loop_destroy(ec->input_loop);
 }
 
+WL_EXPORT void
+weston_version(int *major, int *minor, int *micro)
+{
+	*major = WESTON_VERSION_MAJOR;
+	*minor = WESTON_VERSION_MINOR;
+	*micro = WESTON_VERSION_MICRO;
+}
+
 static int on_term_signal(int signal_number, void *data)
 {
 	struct wl_display *display = data;

src/compositor.h

@@ -28,8 +28,9 @@
 #include <xkbcommon/xkbcommon.h>
 #include <wayland-server.h>
 
-#include "../shared/matrix.h"
-#include "../shared/config-parser.h"
+#include "version.h"
+#include "matrix.h"
+#include "config-parser.h"
 
 #define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0])
 
@@ -495,6 +496,9 @@ enum weston_key_state_update {
 	STATE_UPDATE_NONE,
 };
 
+void
+weston_version(int *major, int *minor, int *micro);
+
 void
 weston_surface_update_transform(struct weston_surface *surface);
 

src/version.h.in

@@ -0,0 +1,31 @@
+/*
+ * Copyright © 2013 Intel Corporation
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef WESTON_VERSION_H
+#define WESTON_VERSION_H
+
+#define WESTON_VERSION_MAJOR @WESTON_VERSION_MAJOR@
+#define WESTON_VERSION_MINOR @WESTON_VERSION_MINOR@
+#define WESTON_VERSION_MICRO @WESTON_VERSION_MICRO@
+#define WESTON_VERSION "@WESTON_VERSION@"
+
+#endif

src/weston.pc.in

@@ -0,0 +1,9 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: Weston Plugin API
+Description: Header files for Weston plugin development
+Version: @WESTON_VERSION@
+Cflags: -I${includedir}

src/xwayland/Makefile.am

@@ -1,4 +1,5 @@
 AM_CPPFLAGS =					\
+	-I$(top_srcdir)/shared			\
 	-DDATADIR='"$(datadir)"'		\
 	-DMODULEDIR='"$(moduledir)"'		\
 	-DLIBEXECDIR='"$(libexecdir)"'		\