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-rw-r--r--cmake/OpusSources.cmake5
1 files changed, 5 insertions, 0 deletions
diff --git a/cmake/OpusSources.cmake b/cmake/OpusSources.cmake
index d8c6cdf4..01e75d1a 100644
--- a/cmake/OpusSources.cmake
+++ b/cmake/OpusSources.cmake
@@ -1,3 +1,8 @@
+if(__opus_sources)
+ return()
+endif()
+set(__opus_sources INCLUDED)
+
include(OpusFunctions)
get_opus_sources(SILK_HEAD silk_headers.mk silk_headers)