Extending default suffix rules.

[Remco Bras]

Hello,

as part of my work on GNU RPGE, I've had to 'extend' the automake suffix rule 
for compiling .c files to .o ones. In the docs, I could not find a variable 
containing the default suffix rule for this purpose, so I replaced the 
entirity of it. However, doing so causes subtle breakage. In particular, 
$(COMPILE) does not include the -c flag when using gcc, is this a deliberate 
decision? 

This usage of automake is probably quite rare, but does anybody have any 
thoughts on this? I'm afraid my Perl skills are rather weak, so I'd need to 
catch up before being able to work on Automake. 

-Remco Bras