Thanks.  I could built it by appending 'char * __progname;'
to ecrt0.c.  I works fine so far, but I am not sure it's 100% OK. 
It would be nice if invoking './configure i386-*-netbsd' solves
the problems.

>>>>> On Wed, 21 Feb 2001 13:14:42 +0900 (JST),
   Yuji Yamano <yyamano@kt.rim.or.jp> said:

    Yuji> Koh Sato <k-sato@ks-s.otaru-uc.ac.jp> writes:

    >> Hello.  I failed to build emacs-20.7 in my 1.5-BETA(sorry) box.
    >> I configured it with the optiion i386-*-netbsd, and replaced
    >> the original unexec.c with unexelf.c, and invoked gmake, and
    >> got the following messages.  I would appreciate any help.
    >> 
    >> > /usr/bin/ld: warning: cannot find entry symbol __start;
    >> defaulting > to 0804d3e8 > /usr/lib/libc.so: undefined
    >> reference to `__progname'

    Yuji> I installed emacs-20.7 to my NetBSD/i386 1.5_ALPHA box from
    Yuji> pkgsrc and it works fine. I think patch files in
    Yuji> /usr/pkgsrc/editors/emacs/patches help you, even if you
    Yuji> don't like to use pkg.

-
Koh Sato
k-sato@ks-s.otaru-uc.ac.jp