Problems with upgrading to 1.2.10a

[Michael van Acken <mvacken@t-online.de>]

If you update oo2c to 1.2.10a you should remove all object files that
were build with previous versions of the compiler.  Otherwise you
might get strange error messages complaining about "Overflow of array
stack" for executables built with 1.2.10a using old object files.

The recent distribution fixed a buglet in the configure script that
prevented oo2c from using alloca to store local copies of value array
parameters.  Without alloca a separate block of memory is used by oo2c
to manage a stack of its own for this purpose.  Mixing both methods in
a single executable is asking for trouble, with the afore-mentioned
results.

-- mva