git(xpp): Update submodule ref (#1647)

This fixes the link failure when configured with -DBUILD_SHARED_LIBS=ON
as reported in #1628. xpp will now always build a static lib

Ref jaagr/xpp#15
This commit is contained in:
Patrick Ziegler 2019-02-18 15:52:34 +01:00 committed by GitHub
parent ca4426a962
commit ea7399decc
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@ -1 +1 @@
Subproject commit bf6ff3661ab88e9e2dba91b145e2753e0260d503 Subproject commit ab6247ba7baee2c06d35534e81ae27f622ebd5b4