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From: Joel Brobecker <brobecker@adacore.com>
To: Petchesi Gabriel Horatiu <gabi@prolix.ro>
Cc: gdb@sources.redhat.com
Subject: Re: gdb on AIX
Date: Mon, 19 Dec 2005 11:19:00 -0000	[thread overview]
Message-ID: <20051219111902.GD31944@adacore.com> (raw)
In-Reply-To: <1134986205.16296.30.camel@localhost.localdomain>

> gcc -g -O2      -Wl,-bbigtoc -lpthdebug  \
>         -o gdb gdb.o libgdb.a \
>            ../readline/libreadline.a ../opcodes/libopcodes.a ../bfd/libbfd.a  ../libiberty/libiberty.a     -lcurses -liconv ../libiberty/libiberty.a
> ld: 0711-317 ERROR: Undefined symbol: .pow
> ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more
> information.
> collect2: ld returned 8 exit status

pow() is part of libm. On our AIX machine (5.3), configure automatically
adds -lm to the list of libs (ie "-lcurses -lm -liconv") or somesuch.
I think the check that adds it is:

        # We might need to link with -lm; most simulators need it.
        AC_CHECK_LIB(m, main)

You need to search a line in your build output saying something like:

        checking for main in -lm

And see what it answered. The answer should be "yes". If you see "no",
then check out "config.log". This file should contain all the details.

-- 
Joel


  reply	other threads:[~2005-12-19 11:19 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-19  9:57 Petchesi Gabriel Horatiu
2005-12-19 11:19 ` Joel Brobecker [this message]
2005-12-20  9:11   ` Petchesi Gabriel Horatiu
2005-12-20 10:45     ` Joel Brobecker
2016-11-14 15:51 GDB " Yao Qi
2016-11-14 16:17 ` David Edelsohn
2016-11-14 17:18 ` Pedro Alves
2016-11-14 17:35   ` David Edelsohn
2016-11-14 17:44     ` Pedro Alves
2016-11-14 22:16   ` Yao Qi

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