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From: caromero@phoenix.Princeton.EDU (C. Antonio Romero)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Turbo C links in everything in obj's
Message-ID: <7337@phoenix.Princeton.EDU>
Date: 23 Mar 89 19:22:25 GMT
References: <1065@ptolemy.arc.nasa.gov>
Reply-To: caromero@phoenix.Princeton.EDU (C. Antonio Romero)
Organization: Princeton University, NJ
Lines: 23

In article <1065@ptolemy.arc.nasa.gov> raymond@ptolemy.arc.nasa.gov 
(Eric A. Raymond) writes:
>It appears that the linker in Turbo C (2.0) links in everything you
>have in your .objs independent of whether the code is actually used.
>For instance, if you have a file with the following fn's in it
>   main, a, b, c, d, e
>and main does not call any of a, b, c, d, or e, the linker still
>includes the objects for a, b, c, d, and e.

<some not wholly unreasonable ideas about trimming out unused code
at linktime deleted>

One difficulty with not doing so is that one might access something 
through a function pointer, which would be pretty tough to detect
for the linker.  I do see what you mean, though...

If this is a big problem for your application, why not turn a,b,c,d,and
e into a library and link with that? (Don't ask me how to do this with
Turbo C, I don't develop software for PCs anymore.  But I'm sure it's
possible, somehow... there must be some sort of library manager for
Turbo.)

-Antonio Romero      romero@confidence.princeton.edu