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Fixed bug #166 From the autoconf obsolete macros documentation: Macro: AC_CANONICAL_SYSTEM Determine the system type and set output variables to the names of the canonical system types. See section Getting the Canonical System Type, for details about the variables this macro sets. The user is encouraged to use either AC_CANONICAL_BUILD, or AC_CANONICAL_HOST, or AC_CANONICAL_TARGET, depending on the needs. Using AC_CANONICAL_TARGET is enough to run the two other macros. From the documentation for the canonical environments: case $target in i386-*-mach* | i386-*-gnu*) obj_format=aout emulation=mach bfd_gas=yes ;; i960-*-bout) obj_format=bout ;; esac Note that the above example uses $target because it's taken from a tool which can be built on some architecture ($build), run on another ($host), but yet handle data for a third architecture ($target). Such tools are usually part of a compiler suite, they generate code for a specific $target. However $target should be meaningless for most packages. If you want to base a decision on the system where your program will be run, make sure you use the $host variable.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 19 Mar 2006 05:27:22 +0000
parents 355632dca928
children
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<HTML
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><TITLE
>SDL_GetRelativeMouseState</TITLE
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><H1
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>SDL_GetRelativeMouseState</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN5902"
></A
><H2
>Name</H2
>SDL_GetRelativeMouseState&nbsp;--&nbsp;Retrieve the current state of the mouse</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN5905"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN5906"
></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>Uint8 <B
CLASS="FSFUNC"
>SDL_GetRelativeMouseState</B
></CODE
>(int *x, int *y);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN5912"
></A
><H2
>Description</H2
><P
>The current button state is returned as a button bitmask, which can
be tested using the <TT
CLASS="LITERAL"
>SDL_BUTTON(X)</TT
> macros, and <TT
CLASS="PARAMETER"
><I
>x</I
></TT
> and <TT
CLASS="PARAMETER"
><I
>y</I
></TT
> are set to the change in the mouse position since the last call to <TT
CLASS="FUNCTION"
>SDL_GetRelativeMouseState</TT
> or since event initialization.  You can pass <TT
CLASS="LITERAL"
>NULL</TT
> for either <TT
CLASS="PARAMETER"
><I
>x</I
></TT
> or <TT
CLASS="PARAMETER"
><I
>y</I
></TT
>.</P
></DIV
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></A
><H2
>See Also</H2
><P
><A
HREF="sdlgetmousestate.html"
><TT
CLASS="FUNCTION"
>SDL_GetMouseState</TT
></A
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