scons: add swrast/s_texture.c to the build
diff --git a/src/mesa/SConscript b/src/mesa/SConscript
index b0c3334..64b7065 100644
--- a/src/mesa/SConscript
+++ b/src/mesa/SConscript
@@ -174,6 +174,7 @@
     'swrast/s_texcombine.c',
     'swrast/s_texfilter.c',
     'swrast/s_texrender.c',
+    'swrast/s_texture.c',
     'swrast/s_triangle.c',
     'swrast/s_zoom.c',
 ]