[PATCH] configure: use SDL2_LIBS if set

[Aric Stewart]

Fix by Andrew Eikum 

Signed-off-by: Aric Stewart <aric(a)codeweavers.com>
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 configure    | 2 +-
 configure.ac | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)