alpha--netbsd1.6.2:
1) Rename the baseline_symbols.txt files that define abi and implement
logic in Makefile that uses these according to architecture and
NetBSD version (1.x versus 2.x)
2) Add several patches that allow code to compile on alpha--netbsd1.6.2
3) Revise Makefile so that libiconv is found under NetBSD 1.6.2
a) The BUILD_ADA must be YES (strictly capitalized) for the
pre-configure target to work, which is inconsistent.
b) For me (using ALT_GCC), the directory .work/.gcc was not
present at pre-configure time, which made some "cd" fail.
2) Makefile cleanup as recommended by Lubomir.
3) pkglint cleanup
4) Increment PKGREVISION
2) Added include statment for zlib/buildlink3.mk to Makefile to go with
CONFIGURE_ARGS+=--with-system-zlib already there. Thank you
Georg Schwarz <geos@epost.de> for pointing out this ommision.
3) Incorporated logic from gcc3 that determines whether to add
binutils dependency or not.
4) Eliminated hardcoded target of netbsdelf2.0 as a step toward supporting
other architectures.
