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Date: Sun, 8 Jan 2012 10:34:03 -0800
From: Andrew Poelstra <asp11 AT sfu DOT ca>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] compiling gEDA on Fedora 16
Message-ID: <20120108183402.GC25351@malakian.lan>
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On Sun, Jan 08, 2012 at 04:11:01PM +0100, myken AT iae DOT nl wrote:
> Hello,
> 
> While compiling gEDA 1.6.2 on Fedora 16 (Xfce) (./configure && make) I get
> the following error message:
> /usr/bin/ld: gschem-m_basic.o: undefined reference to symbol
> 'pow@@GLIBC_2.2.5'
> /usr/bin/ld: note: 'pow@@GLIBC_2.2.5' is defined in DSO /lib64/libm.so.6
> so try adding it to the linker command line
> /lib64/libm.so.6: could not read symbols: Invalid operation
> 
> Googling around I found that Fedora has changed the behaviour of "ld"
> See here:
> http://fedoraproject.org/wiki/Features/ChangeInImplicitDSOLinking
> and here:
> http://fedoraproject.org/wiki/UnderstandingDSOLinkChange
> 
> As I understand this I need to add the -llibm (?) to the LDFLAGS to remove
> this error.
> 
> My questions are:
> 1. do I understand it correctly and
> 2. where do I add the -llibm flag
> 3. Is it libm the library I need to add.
>

The correct flag is -lm, but I can't imagine why autotools wouldn't
already have added it.

-- 
Andrew Poelstra
Email: asp11 at sfu.ca OR apoelstra at wpsoftware.net
Web:   http://www.wpsoftware.net/andrew
"I don't understand. Are you saying dualism is always good, or always bad?"