[Bug-ocrad] Patches for compiling ocrad-0.10 with other compilers than gcc-3.x

[Per Ola Ingvarsson]

I have made new patches for ocrad-0.10 so that it will compile with the 
compilers listed on the page (gcc of different versions and Sun's CC).

The patches are available at http://www.df.lth.se/~pi/ocrad.html.

Getopt is disabled by default, but can easily be enabled again (with a 
define).

The changes are much smaller than my last patches. Most problems were 
solved by including a headerfile which undefines the macro versions of the 
isalpha etc. functions. There were also some non-standard array 
definitions that have been replaced by std::vectors and some forgotten 
const on char*. __attribute__ ((noreturn)) has been replaced by a macro 
that is not in effect when not using gcc.

I have verified the output of the program on the machines that have
sufficient amounts of memory (marked with asterisks on the page).

/pi