I keep getting "ld: Undefined symbol ___main" errors

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3 total messages Started by Vince Tessier Sun, 08 Nov 1992 23:14

#584

Author: Vince Tessier
Date: Sun, 08 Nov 1992 23:14

34 lines
1744 bytes

Mea culpa, mea maxima culpa ...

I violated a cardinal rule by zapping something before its replacement
was proven, and now I can't compile anything with gcc.

I used to run gcc-2.2.1 just fine on my sparc.  Then I built 2.2.2, and
within a couple of days 2.3.1, configuring with 

	./configure --target=sparc-sun-sunos4.1.1 --with-gnu-ld

The entire build and install process went just fine, compiling the
compiler with itself, installing fixincludes, and so on.  But every time
I try to build another package, I can compile the object modules, but
when I go to link the executable, I get a message of the form

	main.o(.text+4): undefined reference to `___main' 

If I build without the "--with-gnu-ld" option and make 'collect2' to
call Sun ld, I get 

	ld: Undefined symbol ___main 
	collect: /usr/bin/ld returned 2 exit status

Of course, I zapped my old gcc-2.2.1 after 2.2.1 and later 2.3.1 built,
compared, and installed without problems; I don't recall how I had
set 2.1.1 up (a while ago).

I've looked through INSTALL, README, the info files, and browsed the
sources for gcc and ld, and can't seem to find where I've gone wrong.

-- 
Vince Tessier	vtessier@vela.acs.oakland.edu

"Think global, act loco."  -- Zippy

Re: I keep getting "ld: Undefined symbol ___main" errors

#592

Author: Andreas Manessinger
Date: Mon, 09 Nov 1992 15:21

21 lines
1433 bytes

>>>>> On Sun, 8 Nov 1992 23:14:55 GMT, vtessier@vela.acs.oakland.edu (Vince Tessier) said:

 Vince> when I go to link the executable, I get a message of the form

 Vince> 	main.o(.text+4): undefined reference to `___main' 

`_main' is a symbol from `libgcc.a' that is automatically linked,
whenever you call `gcc' for linking. I believe that whenever you have
compiled the file that contains the function `main()', you have to
link using `gcc' or by issuing 

   `cc -o foo foo.o bar.o /usr(local/lib/gcc-lib/sun4/2.3.1/libgcc.a'

or wherever you have that library.

Hope that helps
--
    /\            | eMail: man@magwien.gv.at (Andreas Manessinger)
   /  \ndreas     | pMail: Alserstra"se. 20/6; A-1090 Wien; Austria
  /\/\ \          | Work : Gemeinde Wien MD-ADV/Ma; Ref. EPS
 / /  \anessinger | Phone: +43 222 4039584/13, FAX: 4039584/18, Home: 9350434

Re: I keep getting "ld: Undefined symbol ___main" errors

#597

Author: Vince Tessier
Date: Mon, 09 Nov 1992 21:52

19 lines
1223 bytes

man@magwien.gv.at (Andreas Manessinger) writes:

>>>>>> On Sun, 8 Nov 1992 23:14:55 GMT, vtessier@vela.acs.oakland.edu (Vince Tessier) said:

> Vince> when I go to link the executable, I get a message of the form
> Vince> 	main.o(.text+4): undefined reference to `___main' 

>`_main' is a symbol from `libgcc.a' that is automatically linked,
>whenever you call `gcc' for linking.

My problem seems to be that libgcc.a *isn't* being linked in by gcc.
I'm mostly building the other gnu packages, and a typical link command
is of the form
	gcc -o foo bar.o zot.o quux.o
which fails with the above message.  This problem does not occur when
-- 
Vince Tessier	vtessier@vela.acs.oakland.edu

"Think global, act loco."  -- Zippy

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