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 <TITLE>sane-devel: Re: autoconf macro SANE_CHECK_U_TYPES fails on Tru6</TITLE>
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 <H1>Re: autoconf macro SANE_CHECK_U_TYPES fails on Tru64 with cc</H1>
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 <STRONG>From:</STRONG> Henning Meier-Geinitz (<A HREF="mailto:henning@meier-geinitz.de?Subject=Re:%20autoconf%20macro%20SANE_CHECK_U_TYPES%20fails%20on%20Tru64%20with%20cc&In-Reply-To=&lt;20010607192418.A2943@vortex.swb.de&gt;"><EM>henning@meier-geinitz.de</EM></A>)<BR>
 <STRONG>Date:</STRONG> Thu Jun 07 2001 - 10:24:18 PDT
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 Hi,
 <BR>
 <P>On Thu, Jun 07, 2001 at 12:51:20AM +0200, Petter Reinholdtsen wrote:
 <BR>
 <EM>&gt; The autoconf macro SANE_CHECK_U_TYPES in sane-backends/acinclude.m4
 </EM><BR>
 <EM>&gt; fails on Tru64 unix 5.1 when using Compaq C v6.3-28 (ie cc).  The
 </EM><BR>
 <EM>&gt; faulty line uses a compiler flags I've never seen before, and which is
 </EM><BR>
 <EM>&gt; not recognized by Compaq C:
 </EM><BR>
 <P>Oops. I wanted to include this header file. Don't know why I missed
 <BR>
 that while testing.
 <BR>
 <P><EM>&gt; The '-isys/bitypes.h' is passed on to the linker, and it refuses to
 </EM><BR>
 <EM>&gt; use it and fails.  I suggest changing macro to set a flag
 </EM><BR>
 <EM>&gt; (NEED_SYS_BITYPES_H parhaps), and the to include the file in
 </EM><BR>
 <EM>&gt; sane/config.h when needed.
 </EM><BR>
 <P>This won't work. Tru64 can't compile sane because it defines u_int8_t
 <BR>
 and the like only in sys/bitypes.h (not in sys/types.h). These can't
 <BR>
 be detected by AC_CHECK_TYPE. But sys/bitypes.h will be included by
 <BR>
 netinet/in.h (abckend/net.c). The code in ac_include.m4 should check
 <BR>
 for u_int8_t in sys/bitypes.h and if it's only there, also search in
 <BR>
 sys/bitypes.h when doing the AC_CHECK_TYPE(). Also this file should be
 <BR>
 included in every source file that may contain references to u_int8_t.
 <BR>
 <P>Maybe it works if we do something like
 <BR>
 <P>#ifdef NEED_SYS_BITYPES_H
 <BR>
 # include &lt;sys/bitypes.h&gt;
 <BR>
 #else
 <BR>
 /* Define to unsigned char' if &lt;sys/types.h&gt; doesn't define. */
 <BR>
 #undef u_int8_t
 <BR>
 <P>/* Define to unsigned short' if &lt;sys/types.h&gt; doesn't define. */
 <BR>
 #undef u_int16_t
 <BR>
 <P>/* Define to unsigned int' if &lt;sys/types.h&gt; doesn't define. */
 <BR>
 #undef u_int32_t
 <BR>
 #end
 <BR>
 <P>But I don't know which types are in sys/bitypes.h.
 <BR>
 <P>This problem was posted by a &quot;Major A&quot; on 2001-02-4 on sane-devel.
 <BR>
 After I implemented the (wrong) test I asked him if it works but never
 <BR>
 got any response.
 <BR>
 <P>If you have access to Tru64, could you try if this works?
 <BR>
 <P>Bye,
 <BR>
 &nbsp;&nbsp;Henning
 <BR>
 <P><P><PRE>
 --
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146 wiersze 5.5 KiB HTML Czysty Bezpośredni odnośnik Wina Historia

146 wiersze

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Czysty Bezpośredni odnośnik Wina Historia