From: "Weaver, John P CIV" <john.p.weaver@navy.mil>
To: "Ian Lance Taylor" <iant@google.com>,
"Jonathan Wakely" <jwakely.gcc@gmail.com>
Cc: <gcc-help@gcc.gnu.org>
Subject: RE: prefer static linking
Date: Wed, 30 Nov 2011 01:29:00 -0000 [thread overview]
Message-ID: <869832256C376241BB63955DA5CA5AA702B53786@nawechlkez01v.nadsuswe.nads.navy.mil> (raw)
In-Reply-To: <mcrk46iwxa4.fsf@dhcp-172-18-216-180.mtv.corp.google.com>
Following the chain and playing around with the makefile has yielded the
following, judicious use of both -Bdynamic and -Bstatic in front of the
different -l statements does in fact change the behavior of the linker
so that the desired outcome is achieved. Thank you both for your input.
Patrick Weaver
China Lake, CA
Voice: (760) 939-8744
Email: john.p.weaver(at)navy.mil
-----Original Message-----
From: Jonathan Wakely [mailto:jwakely.gcc@gmail.com]
Sent: Tuesday, November 29, 2011 11:29
To: Weaver, John P CIV
Cc: gcc-help@gcc.gnu.org
Subject: Re: prefer static linking
On Nov 29, 2011 7:03 PM, "Weaver, John P CIV" wrote:
>
> The gcc compiler prefers to use dynamic libraries in the linking
phase.
GCC just calls the linker, any preference is the linker's.
For the GNU linker -Bdynamic and -Bstatic allow you to control whether
dynamic or static libraries are used for each lib named with -l
See 'man ld'
-----Original Message-----
From: Ian Lance Taylor [mailto:iant@google.com]
Sent: Tuesday, November 29, 2011 11:21
To: Weaver, John P CIV
Cc: gcc-help@gcc.gnu.org
Subject: Re: prefer static linking
"Weaver, John P CIV" <john.p.weaver@navy.mil> writes:
> The gcc compiler prefers to use dynamic libraries in the linking
> phase. When porting software from one machine to another it is
> frequently desirable to link to static libraries as much as possible
> to account for different versions of the libraries. The -static flag
> is useful when you do not need any dynamic library support but causes
> the linker to fail if there is only a dynamic library for a particular
> call. Is there a way to ask the linker to use static libraries when
> possible and report the dynamic libraries that are needed to complete
> the linking process?
I am not aware of any such option.
If you are using the GNU linker, you can tell it to prefer dynamic
libraries using -Bdynamic and tell it to use only static libraries using
-Bstatic, but I don't know of any option to tell it to prefer static
libraries but use dynamic libraries if they are available.
Ian
prev parent reply other threads:[~2011-11-29 20:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-29 23:47 Weaver, John P CIV
2011-11-29 23:56 ` Ian Lance Taylor
2011-11-30 1:29 ` Weaver, John P CIV [this message]
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