[tex-live] portability fixes for luatex

[Vladimir Volovich]

"PM" == Peter Münster writes:

 PM> Free placement of variable declarations in C is ANSI standard since
 PM> C99 and can enhance readability of C-code a lot.

 PM> So, wouldn't it be much better, to just update your C-compiler on
 PM> your AIX-system?

that's a good point, but i cannot update the compiler (it's an old AIX
4.3 system with VAC 5 compiler). if the fixes don't reduce readability
of the code, i'd like to get them applied.

plus, there are a few other changes in the patch, not related to
variable declarations.

 PM> (I'm not a texlive developer, so this is just my personal opinion.)

Best,
v.