[fpc-pascal] SetCodePage in older FPC 3.0.4

[AlexeyT]

 > FPC generally uses system library functions for the conversion, so it 
does not depend on the FPC version.

But FPC has such files. Are they used in SetCodePage code?

user at PC:~/fpcupdeluxe/fpcsrc/packages/rtl-unicode/src/inc$ ls cp*
cp895.pas  cp932.pas  cp936.pas  cp949.pas  cp950.pas cpbuildu.pp

and

user at PC:~/fpcupdeluxe/fpcsrc/rtl/ucmaps$ ls
8859-10.txt  8859-2.txt  8859-9.txt  cp1256.txt  cp850.txt cp862.txt  
cp895.txt
8859-11.txt  8859-3.txt  cp1250.txt  cp1257.txt  cp852.txt cp863.txt  
cp932.txt
8859-13.txt  8859-4.txt  cp1251.txt  cp1258.txt  cp855.txt cp864.txt  
cp936.txt
8859-14.txt  8859-5.txt  cp1252.txt  cp3021.txt  cp856.txt cp865.txt  
cp949.txt
8859-15.txt  8859-6.txt  cp1253.txt  cp437.txt   cp857.txt cp866.txt  
cp950.txt
8859-16.txt  8859-7.txt  cp1254.txt  cp737.txt   cp860.txt cp869.txt  
koi8-r.txt
8859-1.txt   8859-8.txt  cp1255.txt  cp775.txt   cp861.txt cp874.txt  
koi8-u.txt

-- 
Regards,
Alexey