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<TITLE>sane-devel: Re: #include <sane...> instead of "sane.</TITLE>
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<META NAME="Author" CONTENT="Oliver Rauch (oliver.rauch@Wolfsburg.DE)">
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<META NAME="Subject" CONTENT="Re: #include <sane...> instead of "sane..."">
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<H1>Re: #include <sane...> instead of "sane..."</H1>
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<!-- received="Tue Oct 31 10:52:58 2000" -->
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<!-- sent="Tue, 31 Oct 2000 19:45:35 +0100" -->
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<!-- name="Oliver Rauch" -->
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<!-- subject="Re: #include <sane...> instead of "sane..."" -->
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<!-- id="39FF134F.BF3E8616@wolfsburg.de" -->
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<!-- inreplyto="200010310649.OAA05131@minerva.ee.uwa.edu.au" -->
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<STRONG>From:</STRONG> Oliver Rauch (<A HREF="mailto:oliver.rauch@Wolfsburg.DE?Subject=Re:%20#include%20<sane...>%20instead%20of%20"sane..."&In-Reply-To=<39FF134F.BF3E8616@wolfsburg.de>"><EM>oliver.rauch@Wolfsburg.DE</EM></A>)<BR>
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<STRONG>Date:</STRONG> Tue Oct 31 2000 - 10:45:35 PST
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<P>
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<LI><STRONG>Next message:</STRONG> <A HREF="0331.html">Henning Meier-Geinitz: "Re: #include <sane...> instead of "sane...""</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0329.html">Oliver Rauch: "Re: X-Frontends (xscanimage+xcam) and sane-1.0.4"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0324.html">Petter Reinholdtsen: "Re: #include <sane...> instead of "sane...""</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0331.html">Henning Meier-Geinitz: "Re: #include <sane...> instead of "sane...""</A>
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<P>
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Petter Reinholdtsen wrote:
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<BR>
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<EM>>
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</EM><BR>
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<EM>> If you check the cpp manual page, it will tell you changing <> to ""
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</EM><BR>
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<EM>> only adds searching in the current directory. I can not see why this
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</EM><BR>
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<EM>> gives any advantages when compiling SANE.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> What am I missing?
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</EM><BR>
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<EM>>
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</EM><BR>
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<P>Hi Petter,
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<BR>
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<P>you are right at that point and I see that we are still doing it wrong.
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<BR>
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<P>The problem is the following:
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<BR>
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<P>We have some files in the sourcepackage in sane*/include/sane/...
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<BR>
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some of these files (sane.h and saneopts.h) may also be installed
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<BR>
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in the system directory.
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<BR>
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<P>In the moment we add the sane*/include directory with "-I../include"
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<BR>
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As far as I know it is not defined in which order the directories
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<BR>
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specified with "-I" and the system include directories are searched.
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<BR>
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(I know some users had problems because of that).
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<BR>
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This way it may happen that an old sane.h / saneopts.h file
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<BR>
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(and in the moment also a lot of sanei_* files that are installed
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<BR>
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although they should not be installed)
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<BR>
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from the system directory is used instead of the one included in the
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<BR>
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sane source package.
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<BR>
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<P>This problem normally does not occur because the source header files
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<BR>
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normally are placed in the directory where the sourcecode (*.c)
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<BR>
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is placed. But we put the header files in an own directory.
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<BR>
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<P>So a correct way would be to use
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<BR>
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#include "../include/sane/sane.h"
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<BR>
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this file/path is searched at first from the local directory
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<BR>
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so we can be sure that the file that comes with the sourcepackage
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<BR>
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is used.
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<BR>
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<P>Bye
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<BR>
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Oliver
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<BR>
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<P><P><P><PRE>
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--
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Homepage: <A HREF="http://www.wolfsburg.de/~rauch">http://www.wolfsburg.de/~rauch</A>
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sane-umax: <A HREF="http://www.wolfsburg.de/~rauch/sane/sane-umax.html">http://www.wolfsburg.de/~rauch/sane/sane-umax.html</A>
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xsane: <A HREF="http://www.wolfsburg.de/~rauch/sane/sane-xsane.html">http://www.wolfsburg.de/~rauch/sane/sane-xsane.html</A>
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E-Mail: mailto:<A HREF="mailto:Oliver.Rauch@Wolfsburg.DE?Subject=Re:%20#include%20<sane...>%20instead%20of%20"sane..."&In-Reply-To=<39FF134F.BF3E8616@wolfsburg.de>">Oliver.Rauch@Wolfsburg.DE</A>
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<P>--
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Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20#include%20<sane...>%20instead%20of%20"sane..."&In-Reply-To=<39FF134F.BF3E8616@wolfsburg.de>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0331.html">Henning Meier-Geinitz: "Re: #include <sane...> instead of "sane...""</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0329.html">Oliver Rauch: "Re: X-Frontends (xscanimage+xcam) and sane-1.0.4"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0324.html">Petter Reinholdtsen: "Re: #include <sane...> instead of "sane...""</A>
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