* Fix win64 math unit compilation

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24327 3ad0048d-3df7-0310-abae-a5850022a9f2
 Revert commit 24324 for ncgflow.pas unit to fix win64 cycle

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24328 3ad0048d-3df7-0310-abae-a5850022a9f2