Compilation: use mtime for timestamp macro #791
Merged
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resolve #711
Added a new argument to generateBuiltinMacros to pass an optional timestamp that is used in the case of not having a valid epoch passed as environment variable, to generate the timestamp from a path a new function called generateBuiltinMacrosFromPath is created and is used in Driver for each source file instead of having the same builtin.
Changed generateDateAndTime to make the timestamp argument optional, since the stat can fail, and following GCC behavior it will expand timestamp to "??? ??? ?? ??:??:?? ????"