* refactored the segment-in-integer-register reference support, so it's handled in make_simple_ref, instead of all over the place in the code generator

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24752 3ad0048d-3df7-0310-abae-a5850022a9f2
 * Use fpmkunit to obtain gcclib-dir for configuration files

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24753 3ad0048d-3df7-0310-abae-a5850022a9f2
 * Fixed uninitialized variable problem
 * Removed double -Fl prefix

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24754 3ad0048d-3df7-0310-abae-a5850022a9f2