Specify gflags version in CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9852df1..127c6b3 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -49,7 +49,7 @@ include (DetermineGflagsNamespace)
 set (CMAKE_THREAD_PREFER_PTHREAD 1)
 
 if (WITH_GFLAGS)
-  find_package (gflags)
+  find_package (gflags 2.2.0)
 
   if (gflags_FOUND)
     set (HAVE_LIB_GFLAGS 1)