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Article #3502Re: How to eliminate unnecessary shared libraries from binary?
From: Paul Pluzhnikov
Date: Mon, 31 Jan 2005 04:50
Date: Mon, 31 Jan 2005 04:50
39 lines
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2293 bytes
"Dennis" <rwlin@avamax.com> writes: > LFLAGS= -lpthread -lm -ljpeg ... > The executable is always linked with the 3 shared libraries This is "as designed". > even if they are not necessary The linker can't know that. Maybe they appear to be unnecessary now, but are required by something else that the executable will load later. > which produces the runtime loading error. Huh? If at least one of your exes requires all 3 libraries, and if that exe runs, then all the other exes should run just as well. > Is it possible for ld smart enough to check the real dependency > and linked with them only? Such a linker would be "thinking for you" and doing what it thinks is right, not what you told it to do. There is no worse frustration then fighting tools that think they are smarter then you. If you don't want extra dependencies, write a correct Makefile. GNU make (and Sun make, IIRC) has 'target-specific variable values': This feature allows you to define different values for the same variable, based on the target that `make' is currently building. Cheers, -- In order to understand recursion you must first understand recursion. Remove /-nsp/ for email.
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X-Google-Thread: fc89c,64066ebea43813ab X-Google-Thread: 11318c,64066ebea43813ab X-Google-Attributes: gidfc89c,gid11318c,public X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news1.google.com!news1.google.com!news.maxwell.syr.edu!cyclone.bc.net!newsfeed.telusplanet.net!newsfeed.telus.net!hwmnpeer01.phx!hwmedia!hw-poster!fe06.lga.POSTED!53ab2750!not-for-mail Sender: paul@salmon.parasoft.com Newsgroups: comp.unix.programmer,gnu.gcc.help Subject: Re: How to eliminate unnecessary shared libraries from binary? References: <ctkccr$sqg$1@netnews.hinet.net> From: Paul Pluzhnikov <ppluzhnikov-nsp@charter.net> Message-ID: <m3wttudwxj.fsf@salmon.parasoft.com> Lines: 39 User-Agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.4 (Artificial Intelligence) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: dkoicekneficefklkdpnhlnpmgajhpgaahhagjidnffdohekihmechmncmkmkhojdadgkklcjammigjeakngmmneimggmmdkiimdmednjibjlbjiojpnlfelmcoaoldclhnb�� NNTP-Posting-Date: Sun, 30 Jan 2005 21:53:50 MST Date: 30 Jan 2005 20:50:16 -0800