Doc: Change instances of '(Mac) OS X' to 'macOS'

As of version 10.12 (Sierra), the name of Apple's desktop operating
system will be macOS. Change the occurrences where the Mac platform
is discussed to use a macro \macos, which expands to 'macOS'. This
helps with adapting to future renaming.

Update the instructions on mac-specific Q_OS_* macro usage.

Add a \target for the old 'Qt for OS X' topic to keep links working
for other documentation modules that try to link with the old name.

Change-Id: Id33fb0cd985df702a4ae4efb4c5fd428e77d9b85
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>

1 files changed, 9 insertions, 9 deletions

diff --git a/src/widgets/dialogs/qmessagebox.cpp b/src/widgets/dialogs/qmessagebox.cpp
index f32f7b0417..61a890c064 100644
--- a/src/widgets/dialogs/qmessagebox.cpp
+++ b/src/widgets/dialogs/qmessagebox.cpp
@@ -580,7 +580,7 @@ void QMessageBoxPrivate::_q_clicked(QPlatformDialogHelper::StandardButton button
 
     This is the approach recommended in the
     \l{http://developer.apple.com/library/mac/documentation/UserExperience/Conceptual/AppleHIGuidelines/Windows/Windows.html#//apple_ref/doc/uid/20000961-BABCAJID}
-    {OS X Guidelines}. Similar guidelines apply for the other
+    {\macos Guidelines}. Similar guidelines apply for the other
     platforms, but note the different ways the
     \l{QMessageBox::informativeText} {informative text} is handled for
     different platforms.
@@ -795,7 +795,7 @@ void QMessageBoxPrivate::_q_clicked(QPlatformDialogHelper::StandardButton button
     Constructs a message box with no text and no buttons. \a parent is
     passed to the QDialog constructor.
 
-    On OS X, if you want your message box to appear
+    On \macos, if you want your message box to appear
     as a Qt::Sheet of its \a parent, set the message box's
     \l{setWindowModality()} {window modality} to Qt::WindowModal or use open().
     Otherwise, the message box will be a standard dialog.
@@ -817,7 +817,7 @@ QMessageBox::QMessageBox(QWidget *parent)
     The message box is an \l{Qt::ApplicationModal} {application modal}
     dialog box.
 
-    On OS X, if \a parent is not 0 and you want your message box
+    On \macos, if \a parent is not 0 and you want your message box
     to appear as a Qt::Sheet of that parent, set the message box's
     \l{setWindowModality()} {window modality} to Qt::WindowModal
     (default). Otherwise, the message box will be a standard dialog.
@@ -985,7 +985,7 @@ QAbstractButton *QMessageBox::button(StandardButton which) const
     \list 1
     \li If there is only one button, it is made the escape button.
     \li If there is a \l Cancel button, it is made the escape button.
-    \li On OS X only, if there is exactly one button with the role
+    \li On \macos only, if there is exactly one button with the role
        QMessageBox::RejectRole, it is made the escape button.
     \endlist
 
@@ -1800,7 +1800,7 @@ QMessageBox::StandardButton QMessageBox::critical(QWidget *parent, const QString
     \li As a last resort it uses the Information icon.
     \endlist
 
-    The about box has a single button labelled "OK". On OS X, the
+    The about box has a single button labelled "OK". On \macos, the
     about box is popped up as a modeless window; on other platforms,
     it is currently application modal.
 
@@ -1854,7 +1854,7 @@ void QMessageBox::about(QWidget *parent, const QString &title, const QString &te
 
     QApplication provides this functionality as a slot.
 
-    On OS X, the about box is popped up as a modeless window; on
+    On \macos, the about box is popped up as a modeless window; on
     other platforms, it is currently application modal.
 
     \sa QApplication::aboutQt()
@@ -2619,8 +2619,8 @@ void QMessageBox::setInformativeText(const QString &text)
 
     This function shadows QWidget::setWindowTitle().
 
-    Sets the title of the message box to \a title. On OS X,
-    the window title is ignored (as required by the OS X
+    Sets the title of the message box to \a title. On \macos,
+    the window title is ignored (as required by the \macos
     Guidelines).
 */
 void QMessageBox::setWindowTitle(const QString &title)
@@ -2641,7 +2641,7 @@ void QMessageBox::setWindowTitle(const QString &title)
 
     Sets the modality of the message box to \a windowModality.
 
-    On OS X, if the modality is set to Qt::WindowModal and the message box
+    On \macos, if the modality is set to Qt::WindowModal and the message box
     has a parent, then the message box will be a Qt::Sheet, otherwise the
     message box will be a standard dialog.
 */