Re: [9fans] Silly porting fun

["Russ Cox" <rsc@plan9.bell-labs.com>]

	The compiler, reasonably enough, decides that this routine never does
	anything and is never called, and optimizes it out of existence!  The
	linker then cannot find main(), and fails.  Is there an option switch

That's not what's happening.
The linker cannot find _main, which
calls main, because there have been
no #pragma lines that tell it where
to find libc.a.

In Plan 9, the name you type is the
name that gets used.  No underscores
are added or removed.

I find that the only thing configure 
doesn't do right for APE is try to
compile empty files.

If you really want configure to run,
find the line that says ``AIX loses...''
and change the next line, which is
	echo > foo.c
to
	echo '#include <stdio.h>' > foo.c
Then things usually ``work''.

A well written build process is usually
easy to convert to mk, often by guessing.
I ported cvs yesterday, creating mkfiles
by processing the output of ls *.c, and
it worked the first time.

Russ