st/wgl: consolidate C sources list into Makefile.sources

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

src/gallium/state_trackers/wgl/Makefile.sources

@@ -0,0 +1,15 @@
+C_SOURCES := \
+	stw_context.c \
+	stw_device.c \
+	stw_ext_context.c \
+	stw_ext_extensionsstring.c \
+	stw_ext_gallium.c \
+	stw_ext_pbuffer.c \
+	stw_ext_pixelformat.c \
+	stw_ext_swapinterval.c \
+	stw_framebuffer.c \
+	stw_getprocaddress.c \
+	stw_pixelformat.c \
+	stw_st.c \
+	stw_tls.c \
+	stw_wgl.c

src/gallium/state_trackers/wgl/SConscript

@@ -19,25 +19,8 @@ if not env['gles']:
     # prevent _glapi_* from being declared __declspec(dllimport)
     env.Append(CPPDEFINES = ['_GLAPI_NO_EXPORTS'])
 
-sources = [
-    'stw_context.c',
-    'stw_device.c',
-    'stw_ext_context.c',
-    'stw_ext_extensionsstring.c',
-    'stw_ext_gallium.c',
-    'stw_ext_pbuffer.c',
-    'stw_ext_pixelformat.c',
-    'stw_ext_swapinterval.c',
-    'stw_framebuffer.c',
-    'stw_getprocaddress.c',
-    'stw_pixelformat.c',
-    'stw_st.c',
-    'stw_tls.c',
-    'stw_wgl.c',
-]
-
 wgl = env.ConvenienceLibrary(
     target ='wgl',
-    source = sources,
+    source = env.ParseSourceList('Makefile.sources', 'C_SOURCES'),
 )
 Export('wgl')