Mesa (master): Makefiles: Don' t complain if depend file to be included doesn't exist.

[Carl Worth]

Module: Mesa
Branch: master
Commit: 9d1a61efbecfb0093887ebe14b4aff4e7f6aeb85
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=9d1a61efbecfb0093887ebe14b4aff4e7f6aeb85

Author: Carl Worth <cworth at cworth.org>
Date:   Tue Jul 20 15:59:56 2010 -0700

Makefiles: Don't complain if depend file to be included doesn't exist.

While bootstrapping the dependencies, make will see the "include depend"
directive before the depend file has been created. To avoid a spurious
warning in this case we use "-include" instead, (which differs precisely
in the fact that it will not emit a diagnostic if the named file does
not exist).

---

 src/glut/glx/Makefile |    2 +-
 src/glw/Makefile      |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/glut/glx/Makefile b/src/glut/glx/Makefile
index 6889cd4..69f8052 100644
--- a/src/glut/glx/Makefile
+++ b/src/glut/glx/Makefile
@@ -137,4 +137,4 @@ depend: $(SOURCES)
 	@ $(MKDEP) $(MKDEP_OPTIONS) -I$(TOP)/include $(SOURCES) \
 		$(X11_INCLUDES) > /dev/null 
 
-include depend
+-include depend
diff --git a/src/glw/Makefile b/src/glw/Makefile
index 39352f0..776b1aa 100644
--- a/src/glw/Makefile
+++ b/src/glw/Makefile
@@ -71,4 +71,4 @@ depend: $(GLW_SOURCES)
 		$(X11_INCLUDES) > /dev/null
 
 
-include depend
+-include depend