refactored alias.c heavily especially substituted the loop-based alias_expand() with a recursive approach. Now alias_expand() wraps alias_one() which recursively expands aliases. In principle the ``data processing'' is the same but now it's clearer structured and thus easier to understand IMO. The loop might have been faster but I don't care for speed -- the most simple solution is the best. It's fast enough, that is sufficient.

AM_CFLAGS=@CFLAGS@ @GLIB_CFLAGS@ -D_GNU_SOURCE

noinst_LIBRARIES=libbase64.a
noinst_PROGRAMS=base64enc base64dec

base64enc_SOURCES=\
	base64.h\
	base64enc.c\
	base64.c

base64dec_SOURCES=\
	base64.h\
	base64dec.c\
	base64.c

libbase64_a_SOURCES=\
	base64.h\
	base64.c

base64enc_LDADD=@GLIB_LIBS@
base64dec_LDADD=@GLIB_LIBS@