From siewerts@thinker.colorado.edu Tue Oct 16 00:42:50 2001
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Subject: stupid problem (fwd) - beware of standard include paths!!
To: bf2man@earthlink.net (Hidekazu Miyoshi), chris_newman@maxtor.com,
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Date: Tue, 16 Oct 2001 00:40:58 -0600 (MDT)
From: "Sam Siewert" <siewerts@thinker.colorado.edu>
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Hi,

If you put an include in <include.h> this will cause gcc to look for
it in /usr/include which is a very bad thing for cross compilation!

/usr/include is for the Solaris host only!

First, just use "include.h" and then only explicit include paths will
be searched by gcc and you should have /usr/local/wind/target/h as an
include search path.

Second, gcc has an option for -nostdinclude, which should also solve the
problem.

What happened here is that the compiler found /usr/include/string.h rather
than /usr/local/wind/target/h/include.

So, avoid the aligator braces!  and/or add -nostdinclude to gcc options.

This is nasty, but a common cross compilation issue well documented in
the GNU gcc manuals.

Sam
 

Forwarded message:
> From shubharamani@yahoo.com Sat Oct 13 18:30:28 2001
> Message-ID: <20011014003025.30556.qmail@web20007.mail.yahoo.com>
> Date: Sat, 13 Oct 2001 17:30:25 -0700 (PDT)
> From: Shubha Ramani <shubharamani@yahoo.com>
> Subject: stupid problem
> To: Christopher David Lee <toph@colorado.edu>,
>    Sam Siewert <Sam.Siewert@colorado.edu>
> MIME-Version: 1.0
> Content-Type: text/plain; charset=us-ascii
> Content-Length: 1275
> 
> I've wasted more time than I care to discuss on this.
> 
> I have a program called test.c which contains the following code :
> 
> #include <string.h>
> 
> 
> 
> char s1[10];
> strcpy(s1, "shubha");
> 
> 
> when I do make test.o, I get the following compilation error and I
> cannot figure out why :
> 
> knight:~/ecen5003/hw2>make test.o
> cc386 -g -mpentium -ansi -nostdinc -DRW_MULTI_THREAD -D_REENTRANT
> -fvolatile -nostdlib -fno-builtin -fno-defer-pop -I.
> -I/usr/local/wind/target/h -DCPU=PENTIUM -c
> /magellan/users2/ecen/grad/shubha/ecen5003/hw2/test.c
> /magellan/users2/ecen/grad/shubha/ecen5003/hw2/test.c:6: syntax error
> before string constant
> /magellan/users2/ecen/grad/shubha/ecen5003/hw2/test.c:6: conflicting
> types for `strcpy'
> /usr/local/wind/target/h/string.h:57: previous declaration of `strcpy'
> /magellan/users2/ecen/grad/shubha/ecen5003/hw2/test.c:6: warning: data
> definition has no type or storage class
> make: *** [test.o] Error 1
> 
> Are strings not supported or what ? This is driving me nuts.
> 
> Thanks,
> 
> Shubha
> 
> 
> =====
> Shubha D. Ramani
> <mailto:shubharamani@yahoo.com>
> home:303-554-1173, cell:303-263-7369
> 3455 Table Mesa Drive, G-170
> Boulder, CO 80305
> 
> __________________________________________________
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> 


________________________________________________________________________
 Sam Siewert, Ph.D. -- Adjunct Faculty, Embedded Systems Cert. Program

 University of Colorado Boulder, Electrical and Computer Engineering

 siewerts@thinker.colorado.edu, www-sgc.colorado.edu/~siewerts/
________________________________________________________________________