Fix build warnings

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@59881 65644016-39b1-43b1-bf79-96bc8fe82c15
Fix GCC build broken with last commit

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@59882 65644016-39b1-43b1-bf79-96bc8fe82c15
Vanilla mkdir program does not recognize -p switch on Windows. It is the default, so remove it

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@59883 65644016-39b1-43b1-bf79-96bc8fe82c15
Fix GCC warnings

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@59884 65644016-39b1-43b1-bf79-96bc8fe82c15