[Tuxnes-devel] inline cleanup

[Jason D. S. <jd...@us...>]

This patch uses AC_C_INLINE to check for inline.  I remove the 
definition and users of INLINE.

Inline may be defined to "inline", "__inline", or "" (for instance).  In 
all cases the code should be able to compile fine.  The inline keyword 
is just a hint to the compiler.  Since we compile with -O instead of 
(the default) -O2 or -O3 it's probably ignored anyway (I don't know).

Note that inline is already used elsewhere.  But non-static inlines 
generally won't be inlined. (At least the last time I checked.  gcc 
compiles foo.c into foo.o and bar.c into bar.o.  A function declared as 
inline in foo.c that is used in bar.c can't be inlined because the two 
pieces of code aren't compiled at the same time.  But if you put the 
function into foo.h or bar.c then it can be inlined.)  None of this 
really matters since inlining is surely not needed.  What's slow is the 
renderer, and this is all done in libraries.

jason