Fix error checking in wxFileSystemWatcher::Remove() under OS X.

The boolean return value was compared with -1 which was always false.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74518 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Suppress harmless clang 3.3 warning about unused wxMessageOutputBest field.

Clang detects that a class member is unused (under non-Windows systems) which
is quite impressive but not really useful in this particular case, so suppress
this warning by "using" it.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74519 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix harmless Clang warning about an unused function.

GlobalOnAnotherEvent() is not used in normal testing.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74520 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix harmless Clang warning about unused class member in a test.

The m_i field is only used in the currently commented out debugging messages,
suppress a warning about it being unused.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74521 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix totally broken LocaleSetter class in the test suite.

It was based on a completely erroneous assumption that setlocale() returns the
locale that had been previously active when it actually returns the newly set
locale.

This fixes unit test failures in StringTestCase under OS X, as the locale
wasn't correctly restored by DateTimeTestCase that used this class.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74522 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Don't test for wide character functions in configure under OS X.

The tests for these functions may succeed on the system we're running under
but the functions may not be actually available on the system the application
is going to run under (if it's < 10.7).

So use our own replacements for these functions unless 10.7 was explicitly
chosen as the minimal possible version.

An alternative solution could have been to use weak linking but this is more
difficult and there is no real gain (performance would need to be measured
first).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74523 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Support using GetTextExtent() with empty string to get descent in wxOSX.

Allow measuring the descent and external leading of an empty string by
measuring just a space instead in wxOSX. This makes the behaviour more
consistent with wxMSW and makes the unit test added in r74464 pass under OS X
too.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74524 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Disable wxFont::SetStrikethrough() test under wxOSX.

Strike through support is not available in wxFont under this platform, as
documented.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74525 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Don't use images in wxToolBar with wxTB_NOICONS in wxOSX.

This results in asserts when adding items without bitmaps, but this should be
allowed when using wxTB_NOICONS.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74526 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775