Date: Sun, 29 Nov 1998 15:51:59 +1030 From: Greg Lehey <grog@lemis.com> To: Andrew <andrew@violet.org> Cc: questions@FreeBSD.ORG Subject: Re: /usr/lib/crt0.o & freebsd 3.0-release Message-ID: <19981129155159.I6182@freebie.lemis.com> In-Reply-To: <19981128204312.B4353@apogee.whack.org>; from Andrew on Sat, Nov 28, 1998 at 08:43:12PM -0800 References: <19981128174357.A3586@apogee.whack.org> <19981129123738.V6182@freebie.lemis.com> <19981128193733.A4176@apogee.whack.org> <19981129141749.D6182@freebie.lemis.com> <19981128200127.A4245@apogee.whack.org> <19981129143645.E6182@freebie.lemis.com> <19981128201153.A4353@apogee.whack.org> <19981129144400.G6182@freebie.lemis.com> <19981128204312.B4353@apogee.whack.org>
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On Saturday, 28 November 1998 at 20:43:12 -0800, Andrew wrote:
> Greg,
>
> I have found your `solution' rather dissatisfying...
>
> 1. after a failed make LANGUAGES=c in the build directory...
> I replaced all occurrences of crt0 with crt1 in
> the file you are referring to ./specs
> - the file does not exist before the first make -
> 2. the retried make LANGUAGES=c generates the following output
> it is the same if I symlink /usr/lib/crt0.o -> /usr/lib/crt1.0
Well, that won't make any difference if you really call it crt1.0.
But I told you this is the wrong approach. That way more headaches
lie.
> <snip>
>
> ./xgcc -B./ -DIN_GCC -g -I./include enquire.o -o enquire
> /usr/libexec/elf/ld: warning: cannot find entry symbol start; defaulting to 080483d0
> /usr/lib/crt1.o: In function `_start':
> /usr/lib/crt1.o(.text+0x49): undefined reference to `main'
> enquire.o: In function `overflow':
> /usr/build/gcc/gcc-2.8.1/./enquire.c(.text+0xd): undefined reference to `_signal'
What's dissatisfying about that? You're now finding your crt1.o, and
you're on to the next bug. It looks as if your specs aren't finding
the correct libraries.
You're just seeing the hard way that porting software isn't always
easy. That's why the FreeBSD project created the Ports Collection.
You basically have two choices:
1. Install the port for gcc 2.8.1:
cd /usr
tar xvzf /cdrom/ports/ports.tgz ports/lang/gcc28
cd ports/lang/gcc28
make install
It goes without a hitch, at least on my machine.
2. Carry on the way you're going. You may find my book ``Porting
UNIX Software'' helpful
(http://www.ora.com/catalog/port/noframes.html). When you're
done, you can compare your patches with the patches from the port
in (1) above.
It's your choice. You'll definitely learn more by taking the second
alternative.
Greg
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