COMPILATION_MODE_DEBUG.
COMPILATION_MODE_DEBUG.

	* build-aux/urbi-compilation-mode.m4 (YYDEBUG): No longer needed,
	remove it.
	(URBI_DEBUG): Rename as...
	(COMPILATION_MODE_DEBUG): this.

aldebaran/libport,aldebaran/libport,aldebaran/libport,aldebaran/libport,aldebaran/libport