Move the fp_machine struct into s_nvfragmprog.c since (except for program
debug) it's only used there.
diff --git a/src/mesa/drivers/common/driverfuncs.c b/src/mesa/drivers/common/driverfuncs.c
index 3ccbe54..1e44904 100644
--- a/src/mesa/drivers/common/driverfuncs.c
+++ b/src/mesa/drivers/common/driverfuncs.c
@@ -126,6 +126,9 @@
    driver->BindProgram = NULL;
    driver->NewProgram = _mesa_new_program;
    driver->DeleteProgram = _mesa_delete_program;
+#if FEATURE_MESA_program_debug
+   driver->GetFragmentProgramRegister = _swrast_get_program_register;
+#endif /* FEATURE_MESA_program_debug */
 
    /* simple state commands */
    driver->AlphaFunc = NULL;