nightly update

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/branches/B2_5_Release@58931 65644016-39b1-43b1-bf79-96bc8fe82c15
Trying to fix posix build of gfix

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/branches/B2_5_Release@58932 65644016-39b1-43b1-bf79-96bc8fe82c15
Slightly better fix for gfix posix build problem

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/branches/B2_5_Release@58933 65644016-39b1-43b1-bf79-96bc8fe82c15