Ok, so I fixed some of them. These are the ones that appear now:
COMPILE ERROR - file: interface\utilite.c; line: 28
native function 'LanguageGetDefaultLanguage' not declared
COMPILE ERROR - file: interface\utilite.c; line: 28
native function 'GetSaveDirectory' not declared
COMPILE ERROR - file: interface\utilite.c; line: 28
native function 'GetProgramDirectory' not declared
COMPILE ERROR - file: interface\utilite.c; line: 28
native function 'GetResourceDirectory' not declared
COMPILE ERROR - file: interface\utilite.c; line: 28
native function 'AddControlTreeNode' not declared
RUNTIME ERROR - file: ships\ships_init.c; line: 210
Invalid function call
RUNTIME ERROR - file: ships\ships_init.c; line: 210
function 'InitShips' stack error