From: Bill Kelly <billk@...>
Date: 2006-10-20T16:28:09+09:00
Subject: Re: libiconv: iconv_open is missing?

From: "Matt Wynne" <mattwynne@fastmail.fm>
>
> Hey Bill, thanks, I kindof did that by taking Nobuyoshi's suggestion and 
> hacking the extconf.rb file, which now runs. The make fails though, like 
> this:
> 
> Vigor10:~/Documents/Downloads/net-geoip-0.06 matt$ make
> gcc -I. -I. -I/opt/local/lib/ruby/1.8/i686-darwin8.8.1 -I. 
> -DRUBY_EXTCONF_H=\"extconf.h\" -O -pipe -I/opt/local/include -fno-common 
> -g -Wall-O -pipe -I/opt/local/include  -fno-common -pipe -fno-common 
> -I/opt/local/include  -c geoip.c
> cc1: error: unrecognized command line option "-Wall-O"
> make: *** [geoip.o] Error 1

It looks like part of your compiler flags string was appended to itself, for
some reason.  Or sort of, anyway:

See how "-O -pipe -I/opt/local/include -fno-common" appears twice?
But it was appended the second time without a space, so that the "-O"
is touching the "-Wall".

At the very least, you'd want a space between the "-Wall" and the "-O",
to prevent them from touching and combining to form an unrecognized
option.

Hard to guess from here how that compiler command line string is being
generated... it contains a fair amount of duplication.  But anyway, the
immediate problem is that the "-O" is touching the "-Wall", instead of
being separated by a space.

HTH,

Bill