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-rw-r--r--doc/CMakeLists.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index a4e38ef9..66fa843e 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -1,3 +1,4 @@
+cmake_minimum_required(VERSION 3.1)
find_package(Doxygen)
if (NOT DOXYGEN_FOUND)