meson: Simplify check for _FORTIFY_SOURCE

Use the compiler.get_define() function to get the value of
_FORTIFY_SOURCE instead of iterating over the cpp_args. This simplies
the code, but also guarantees to return the actual value of
_FORTIFY_SOURCE, even if defined through other means than through the
meson cpp_args.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: George Burgess IV <gbiv@google.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>

0 files changed, 0 insertions, 0 deletions