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Full Discussion: A question regarding the gcc compiler ...
Top Forums Programming A question regarding the gcc compiler ... Post 302476309 by Corona688 on Wednesday 1st of December 2010 11:44:38 AM
Old 12-01-2010
Quote:
Originally Posted by Praveen_218
Wherein we also provide a path for nm to look into, isn't it?
If you don't know the library you want, gcc doesn't either. -L only tells gcc where to get files from, it still expects names given with -l for it to link anything at all. It never trawls. Of course trawling with nm is slower.
Quote:
There were times when I've used altogather a new APIs by just looking at header files declerations and searched the relevant *.a file path to be included into the makefile. gcc was extremely quick to locate the relevant libxxx.a file (out of a number of such archieves) to add the correct library without significantly impairing the overall build time.
It's still not psychic. It doesn't know that -lz means zlib, and doesn't know what symbols -lz is supposed to supply. It just knows that -lz means libz.a/libz.la/libz.so/etc. There is a 1:1 correlation between library names and library files, it doesn't have to hunt -- it already knows what it wants, which is precisely what you told it.

Meaning, if you can compile with gcc, you already know what exact file you want, which is of course more efficient than trawling hundreds of files hunting for a symbol.
 

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LEARN ABOUT DEBIAN

gpe-question

GPE-QUESTION(1) 						   gpe-question 						   GPE-QUESTION(1)

NAME

       gpe-question - GPE interface for asking questions from shell scripts.

SYNOPSIS

       gpe-question [---icon] name {--question "Question text"} {--buttons icon1:text1} [icon2:text2 ...]

DESCRIPTION

       This manual page was written for the Debian(TM) distribution because the original program does not have a manual page.

       gpe-question provides dialogues to raise a question within the GPE Palmtop Environment with cancel and ok buttons.

OPTIONS

       --question STRING
	  The question to ask the user via the dialogue.

       --buttons type:label
	  The type and label of the button(s) to be shown. Repeat for additional buttons.

EXAMPLES

       gpe-question "test" --question "Do you want to check first?"  --buttons YES:yes NO:no

AUTHOR

       This manual page was written by Neil Williams <codehelp@debian.org> for the Debian(TM) system (but may be used by others). Permission is
       granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any later version
       published by the Free Software Foundation.

       On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.

AUTHOR

       Moray Allen
	  Author.

COPYRIGHT

       Copyright (C) 2007 Neil Williams

Debian 1							 January 16, 2007						   GPE-QUESTION(1)
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