* don't add the heap segment declaration at the beginning of each object file in
  the i8086 far data memory models



git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28018 3ad0048d-3df7-0310-abae-a5850022a9f2
* nested ifdefs in TX86NasmAssembler.WriteHeader replaced with an 'if defined()'
  sequence



git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28019 3ad0048d-3df7-0310-abae-a5850022a9f2