SRCDIRS += hci hci/commands hci/tui
SRCDIRS += hci/mucurses hci/mucurses/widgets
SRCDIRS += usr
+SRCDIRS += config
# NON_AUTO_SRCS lists files that are excluded from the normal
# automatic build system.
#include <config/general.h>
#include <config/console.h>
+/** @file
+ *
+ * Configuration options
+ *
+ * This file contains macros that pull various objects into the link
+ * based on definitions in configuration header files. Ideally it
+ * should be the only place in gPXE where one might need to use #ifdef
+ * for compile-time options.
+ *
+ * In the fairly common case where an object should only be considered
+ * for inclusion if the subsystem it depends on is present, its
+ * configuration macros should be placed in a file named
+ * <tt>config_<i>subsystem</i>.c</tt>, where @e subsystem is the
+ * object basename of the main source file for that subsystem. The
+ * build system will pull in that file if @c subsystem.c is included
+ * in the final gPXE executable built.
+ */
+
/*
* Build ID string calculations
*
#define PREFIX_OBJECT( _prefix ) _C2 ( _prefix, OBJECT )
#define OBJECT_SYMBOL PREFIX_OBJECT ( obj_ )
+#define REQUEST_EXPANDED( _sym ) REQUEST_SYMBOL ( _sym )
+#define CONFIG_SYMBOL PREFIX_OBJECT ( obj_config_ )
/** Always provide the symbol for the current object (defined by -DOBJECT) */
PROVIDE_SYMBOL ( OBJECT_SYMBOL );
+/** Pull in an object-specific configuration file if available */
+REQUEST_EXPANDED ( CONFIG_SYMBOL );
+
/** Explicitly require another object */
#define REQUIRE_OBJECT( _obj ) REQUIRE_SYMBOL ( obj_ ## _obj )