From a9410223720329a90d1b41de2fbb6e5b1e53f5c5 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Kristian=20H=C3=B8gsberg?= <krh@bitplanet.net>
Date: Fri, 14 Jan 2011 17:22:35 -0500
Subject: [PATCH] Make it possible to enable/disable the various compositors
 from configure

---
 compositor/Makefile.am  | 27 ++++++++++++++++++++-------
 compositor/compositor.c | 16 ++++++++++++++--
 configure.ac            | 25 +++++++++++++++++++++++++
 3 files changed, 59 insertions(+), 9 deletions(-)

diff --git a/compositor/Makefile.am b/compositor/Makefile.am
index ded71e0..56a2e7e 100644
--- a/compositor/Makefile.am
+++ b/compositor/Makefile.am
@@ -13,19 +13,32 @@ compositor_LDADD =					\
 	$(top_builddir)/wayland/libwayland-client.la	\
 	$(COMPOSITOR_LIBS)
 
+if ENABLE_DRM_COMPOSITOR
+drm_compositor_sources = compositor-drm.c tty.c evdev.c
+drm_sources = drm.c
+endif
+
+if ENABLE_X11_COMPOSITOR
+x11_compositor_sources = compositor-x11.c
+drm_sources = drm.c
+endif
+
+if ENABLE_WAYLAND_COMPOSITOR
+wayland_compositor_sources = compositor-wayland.c
+drm_sources = drm.c
+endif
+
 compositor_SOURCES =				\
 	compositor.c				\
 	compositor.h				\
-	compositor-drm.c			\
-	compositor-x11.c			\
-	compositor-wayland.c			\
 	screenshooter.c				\
 	screenshooter-protocol.c		\
 	screenshooter-server-protocol.h		\
-	tty.c					\
-	evdev.c					\
-	drm.c					\
-	shm.c
+	shm.c					\
+	$(drm_compositor_sources)		\
+	$(x11_compositor_sources)		\
+	$(wayland_compositor_sources)		\
+	$(drm_sources)
 
 udevrulesddir = $(sysconfdir)/udev/rules.d
 
diff --git a/compositor/compositor.c b/compositor/compositor.c
index a92f7d7..8659344 100644
--- a/compositor/compositor.c
+++ b/compositor/compositor.c
@@ -18,6 +18,8 @@
 
 #define _GNU_SOURCE
 
+#include "config.h"
+
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
@@ -1462,12 +1464,22 @@ int main(int argc, char *argv[])
 
 	display = wl_display_create();
 
+	ec = NULL;
+
+#if BUILD_WAYLAND_COMPOSITOR
 	if (getenv("WAYLAND_DISPLAY"))
 		ec = wayland_compositor_create(display, width, height);
-	else if (getenv("DISPLAY"))
+#endif
+
+#if BUILD_X11_COMPOSITOR
+	if (ec == NULL && getenv("DISPLAY"))
 		ec = x11_compositor_create(display, width, height);
-	else
+#endif
+
+#if BUILD_DRM_COMPOSITOR
+	if (ec == NULL)
 		ec = drm_compositor_create(display, option_connector);
+#endif
 
 	if (ec == NULL) {
 		fprintf(stderr, "failed to create compositor\n");
diff --git a/configure.ac b/configure.ac
index 31654a6..e3c3336 100644
--- a/configure.ac
+++ b/configure.ac
@@ -29,6 +29,31 @@ PKG_CHECK_MODULES(POPPLER, [poppler-glib gdk-2.0],
 			   [have_poppler=yes], [have_poppler=no])
 AM_CONDITIONAL(HAVE_POPPLER, test "x$have_poppler" = "xyes")
 
+
+AC_ARG_ENABLE(x11-compositor, [  --enable-x11-compositor],,
+	      enable_x11_compositor=yes)
+AM_CONDITIONAL(ENABLE_X11_COMPOSITOR, test x$enable_x11_compositor == xyes)
+if test x$enable_x11_compositor == xyes; then
+  AC_DEFINE([BUILD_X11_COMPOSITOR], [1], [Build the X11 compositor])
+fi
+
+
+AC_ARG_ENABLE(drm-compositor, [  --enable-drm-compositor])
+AM_CONDITIONAL(ENABLE_DRM_COMPOSITOR, test x$enable_drm_compositor == xyes)
+if test x$enable_drm_compositor == xyes; then
+  AC_DEFINE([BUILD_DRM_COMPOSITOR], [1], [Build the DRM compositor])
+fi
+
+
+AC_ARG_ENABLE(wayland-compositor, [  --enable-wayland-compositor])
+AM_CONDITIONAL(ENABLE_WAYLAND_COMPOSITOR,
+	       test x$enable_wayland_compositor == xyes)
+if test x$enable_wayland_compositor == xyes; then
+  AC_DEFINE([BUILD_WAYLAND_COMPOSITOR], [1],
+	    [Build the Wayland (nested) compositor])
+fi
+
+
 PKG_CHECK_MODULES(CAIRO_GL, [cairo-gl],
 		  [have_cairo_gl=yes], [have_cairo_gl=no])
 AS_IF([test "x$have_cairo_gl" = "xyes"],
-- 
2.7.4