Make.rules.in: Add a new make variable "C_GEN_SRCS" for C files that need to be generated before makedep can be run on them.

[Robert Shearman]

Alexandre Julliard wrote:
> Robert Shearman <rob at codeweavers.com> writes:
>   
>> If I just add the file to C_SRCS then "make" works fine, but "make
>> depend" doesn't because "make depend" doesn't have a dependency on
>> C_SRCS.
>>
>> This patch was an attempt to work around this problem and still
>> generate useful dependency information.
>>     
>
> Yes, but you need to do that without generating them, otherwise you
> need to build half the tree before you can even do a make depend.
> Makedep has to be taught how to generate dependencies for a _i.o given
> the original .idl.
>   

This still doesn't completely fix the problem for tests though, since 
adding the file to CTESTS obviously won't work.

What should I use instead? EXTRA_OBJS? Change C_SRCS rule to use 
EXTRA_SRCS as well? Or add a new variable to use in the C_SRCS rule?

-- 
Rob Shearman