From a cursory glance, it looks like block 279,000 meets the criteria for
a checkpoint block, and it's also what the bootstrap.dat torrent is at. This closes#3530.
Use a series of .png frames for the spinner instead of a .mng.
`mng` is an obscure image format and is not built by default into Qt5.
This appears to improve the crispness of the spinner as well.
Does not noticably increase the size (still ~27k) and the code
is not more complicated either.
Fix regression introduced in ec41342.
Also use a less ugly solution, by defining the value of
`MOC_DEFS` in the configure script instead of `Makefile.include`.
There is not much in the GUI to be done without wallet,
though it's possible to change options, watch the sync process,
and use the debug console.
So embed the debug console in the main window.
Stop the shutdown timer from exiting the main loop
when shutdown is already in progress.
Fixes seeming hanging window after typing 'stop' in debug console.
Also hide the debug console during shutdown as it is useless without
a core to connect to.
Remove the need for global references `guiref` and
`splashref` by making the BitcoinGUI and SplashScreen
classes register for the UI interface signals themselves.
Move AppInit2 and Shutdown to a thread.
This allows a more responsive splash screen, prevents 'process does not respond'
messages from the window system and will allow for showing a user friendly
window while shutting down.
Since we're now properly linking against static plugins for qt binaries,
we need to ensure that they're Imported properly.
Without these Imports, the linker drops some of the unused linked libs, causing
undefined symbols in QtCore.
At least Debian/Ubuntu use 'qtchooser' for switching between qt4/qt5 binaries.
It is a wrapper for all qt tools, and calls the named tool of the default
version unless overridden by the -qt= option or QT_SELECT environment variable.
QT_SELECT is set by configure once the qt version has been chosen.
Take for example, moc.
$ which moc
/usr/bin/moc
$ ls -go /usr/bin/moc
lrwxrwxrwx 1 9 Jul 3 21:33 /usr/bin/moc -> qtchooser
$ qtchooser -print-env
QT_SELECT="default"
QTTOOLDIR="/usr/lib/x86_64-linux-gnu/qt4/bin"
QTLIBDIR="/usr/lib/x86_64-linux-gnu"
$ QT_SELECT=qt5 qtchooser -print-env
QT_SELECT="qt5"
QTTOOLDIR="/usr/lib/x86_64-linux-gnu/qt5/bin"
QTLIBDIR="/usr/lib/x86_64-linux-gnu"
$ moc -v
Qt Meta Object Compiler version 63 (Qt 4.8.4)
$ QT_SELECT=qt5 moc -v
Qt Meta Object Compiler version 67 (Qt 5.0.1)
This should be harmless elsewhere.
