[PATCH] hw/xwin: Look for gl spec files in $(srcdir) or .

[Keith Packard]

Tarballs include the downloaded gl spec files, which will end up in
$(srcdir). But, git-based builds will not have them at all and will
need to download them from opengl.org. They'll land in in the build
directory instead of $(srcdir), and so we need to allow them to be in
either place.

This change checks for the files in $(srcdir), linking them to . if
present. Otherwise, it downloads them from opengl.org.

A suggested better solution is to have Mesa install these files somewhere.

Signed-off-by: Keith Packard <keithp at keithp.com>
---
 hw/xwin/glx/Makefile.am |   28 ++++++++++++++++++++++------
 1 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/hw/xwin/glx/Makefile.am b/hw/xwin/glx/Makefile.am
index e9fea50..5b9d2da 100644
--- a/hw/xwin/glx/Makefile.am
+++ b/hw/xwin/glx/Makefile.am
@@ -33,22 +33,38 @@ indirect.c: wgl_ext_api.h
 SPEC_FILES = gl.spec gl.tm wglext.spec wgl.tm
 
 gl.spec:
-	wget http://www.opengl.org/registry/api/gl.spec
+	if test -f $(srcdir)/$@; then \
+		$(LN) $(srcdir)/$@ .; \
+	else \
+		wget http://www.opengl.org/registry/api/$@; \
+	fi
 
 gl.tm:
-	wget http://www.opengl.org/registry/api/gl.tm
+	if test -f $(srcdir)/$@; then \
+		$(LN) $(srcdir)/$@ .; \
+	else \
+		wget http://www.opengl.org/registry/api/$@; \
+	fi
 
 wglext.spec:
-	wget http://www.opengl.org/registry/api/wglext.spec
+	if test -f $(srcdir)/$@; then \
+		$(LN) $(srcdir)/$@ .; \
+	else \
+		wget http://www.opengl.org/registry/api/$@; \
+	fi
 
 wgl.tm:
-	wget http://www.opengl.org/registry/api/wgl.tm
+	if test -f $(srcdir)/$@; then \
+		$(LN) $(srcdir)/$@ .; \
+	else \
+		wget http://www.opengl.org/registry/api/$@; \
+	fi
 
 generated_gl_wrappers.c: gen_gl_wrappers.py gl.spec gl.tm
-	$(srcdir)/gen_gl_wrappers.py --spec=$(srcdir)/gl.spec --typemap=$(srcdir)/gl.tm --dispatch-header=$(top_srcdir)/glx/dispatch.h --staticwrappers >generated_gl_wrappers.c
+	$(srcdir)/gen_gl_wrappers.py --spec=gl.spec --typemap=gl.tm --dispatch-header=$(top_srcdir)/glx/dispatch.h --staticwrappers >generated_gl_wrappers.c
 
 generated_wgl_wrappers.c: gen_gl_wrappers.py wglext.spec wgl.tm
-	$(srcdir)/gen_gl_wrappers.py --spec=$(srcdir)/wglext.spec --typemap=$(srcdir)/wgl.tm --prefix=wgl --preresolve >generated_wgl_wrappers.c
+	$(srcdir)/gen_gl_wrappers.py --spec=wglext.spec --typemap=wgl.tm --prefix=wgl --preresolve >generated_wgl_wrappers.c
 
 wglext.h:
 	wget http://www.opengl.org/registry/api/wglext.h
-- 
1.7.2.3