Andy Ball wrote:
> 
> Hello Martijn,
> 
>   MvB> Try gmake. Many auto-generated makefiles are GNUified these
>      > days.
> 
> gmake did much the same thing.
> 
> I tried following the instructions again at Mizuno Takafumi's site,
> with a little more success.  This time I actually got as far as cc
> trying to compile the thing.  It said...
> 
>     .
>     :
>     cc -O2 -Wall -g   -Werror    -c spcadecoder.c
>     cc1: warnings being treated as errors
>     spcadecoder.c: In function `fun_D':
>     spcadecoder.c:739: warning: value computed is not used
>     spcadecoder.c: In function `make_jpeg':
>     spcadecoder.c:3993: parse error before `*'
>     spcadecoder.c:3996: `start' undeclared (first use in this
>     function)

Are you using gcc-2.95? This looks like a declaration that is intermixed 
with code. Add

     GCC_REQD+= 3.0

to the package Makefile and try again.

Roland