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-rw-r--r--cmake/opentrack-rift.cmake1
1 files changed, 1 insertions, 0 deletions
diff --git a/cmake/opentrack-rift.cmake b/cmake/opentrack-rift.cmake
index 88adbb3e..cdcfc946 100644
--- a/cmake/opentrack-rift.cmake
+++ b/cmake/opentrack-rift.cmake
@@ -1,3 +1,4 @@
+include_guard(GLOBAL)
function(otr_rift proj opt)
if(${opt})
set(link-flags)