Horrible hack to get timestamps not to hang on windows

Turns out date is a valid command on windowndows, and running it waits for user input. That hangs qmake. This hack is a valid batch command that returns 0 and at the same time a valid bash command that tries to run date or return 0

I'm so sorry.

qtox.pro

@@ -46,7 +46,9 @@ RESOURCES += res.qrc
 
 GIT_VERSION = $$system(git rev-parse HEAD 2> /dev/null || echo "built without git")
 DEFINES += GIT_VERSION=\"\\\"$$quote($$GIT_VERSION)\\\"\"
-TIMESTAMP = $$system(date +"%s" || echo 0)
+# date works on linux/mac, but it would hangs qmake on windows
+# This hack returns 0 on batch (windows), but executes "date +%s" or return 0 if it fails on bash (linux/mac)
+TIMESTAMP = $$system($1 2>null||echo 0||a;rm null;date +%s||echo 0) # I'm so sorry
 DEFINES += TIMESTAMP=$$TIMESTAMP
 DEFINES += LOG_TO_FILE