[cc65] Re: [Contiki-developers] build problems

On Friday 23 June 2006 09:05, Adam Dunkels wrote:

(crossposted to cc65 list, note for UZ: i volunteered to handle the 2.x port 
of contiki for the c64, currently trying to just make it compile with cc65)

> The Makefile.include currently contains a lot of gcc-isms since it has
> only been used with gcc-style compilers. It would be great, however, if
> it could be entirely generic and work for all C compilers and if any has
> ideas on how to make things more generic, feel free to share them :-)

one problem i have found is that it is assumed that the compiler understands 
certain options, such as -c (compile but do not link). not much of a problem 
with cc65 (because cl65 _does_ understand it, and cl65 pretty much resembles 
what the "gcc" program does) but it'll be a problem with lesser compilers 
(such as sdcc *shudder*). [however, maybe some custom rules in the arch 
specific makefile can overide this behaviour, didnt try because it doesnt 
bother me right now :=P]

i managed to go a bit further by tweaking the c64 specific files a bit, 
however this is stopping me from going further:

groepaz@gurke ~/contiki/contiki-2.x/examples/webserver $ make TARGET=c64
cl65 -I. -I../../cpu/6502 -I../../platform/c64/. -I../../platform/c64/apps -I../../platform/c64/ctk -I../../platform/c64/lib -I../../platform/c64/loader -I../../platform/c64/net -I../../apps/webserver -I../../core -DWITH_PETSCII -t 
c64 --add-source --create-dep -DCTK_HIRES -DWITH_UIP -DWITH_LOADER_ARCH -DWITH_ETHERNET -c ../../core/net/dhcpc.c -o 
obj_c64/dhcpc.o
../../core/sys/lc.h(123): Error: `"' or `<' expected
../../core/sys/pt.h(55): Error: Type expected
../../core/sys/pt.h(55): Error: `;' expected
../../core/sys/pt.h(55): Error: Type expected
../../core/net/dhcpc.c(254): Error: Size of data type is unknown
../../core/net/dhcpc.c(274): Warning: Function call without a prototype
../../core/net/dhcpc.c(283): Warning: Function call without a prototype
../../core/net/dhcpc.c(382): Warning: Function call without a prototype
../../core/net/dhcpc.c(382): Warning: Function call without a prototype
../../core/net/dhcpc.c(383): Warning: Parameter `data' is never used

the offending code is:

(somewhere in ./platform/c64/contiki-conf.h)
#define LC_CONF_INCLUDE "lib/lc-cc65.h"

(in ./core/sys/lc.h)
#ifdef LC_CONF_INCLUDE
#include LC_CONF_INCLUDE
#else /* LC_CONF_INCLUDE */
#include "sys/lc-switch.h"
#endif /* LC_CONF_INCLUDE */

...is this even legal? mmmh i can see a lot of lesser compilers fail on this 
too... maybe some kind of configure script would do the job better than this? 
(although i can see other kinds of problems with that). args :/

i might try piping stuff through gccs preprocessor, but this smells very hax0r 
to me and shouldnt be needed :=P

-- 

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Hand.

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