use -O3 for C++ code as well, makes a difference

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 420a8ecd577b499aa20b3dbef439b766d0943c7c..c3f6b49bfa2572d0b634a7309d1f8752fda671a1 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -225,7 +225,7 @@ else()
     if(OPTIMISE)
         if (NOT CMAKE_BUILD_TYPE MATCHES MINSIZEREL)
             set(OPT_C_FLAG "-O3")
-            set(OPT_CXX_FLAG "-O2")
+            set(OPT_CXX_FLAG "-O3")
         else ()
             set(OPT_C_FLAG "-Os")
             set(OPT_CXX_FLAG "-Os")