The previous fix where the Grammar comment style was changed to
remove the newlines was incorrect, because if you have
foo=1#comment
bar=2
after the Grammar comment ignoring, it would transform into
foo=1bar=2
which will clearly fail to parse, so the new line has to stay.
But we would still have the following case which would fail:
foo=a \
# comment
b
Apparently qmake things that's the equivalent of
foo=a b
but the grammar parses it as
foo=a \
\n (newline)
b
Thus the parsing fails because there's a newline and then some
weird 'b' token which the grammar does not expect.
The best fix I found is to preprocess the source, to remove
completely commented out lines.
So:
foo=a \
# comment
b
gets transformed into
foo=a \
b
Change-Id: I2487a0dbf94a6ad4d917d0a0ce05247341e9b7da
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
76f5b784ce