diff --git a/3rdparty/carotene/hal/CMakeLists.txt b/3rdparty/carotene/hal/CMakeLists.txt
index e382f037e8..c4b9acaedd 100644
--- a/3rdparty/carotene/hal/CMakeLists.txt
+++ b/3rdparty/carotene/hal/CMakeLists.txt
@@ -12,6 +12,8 @@ elseif (CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64.*|AARCH64.*")
   set(AARCH64 TRUE)
 endif()
 
+ocv_warnings_disable(CMAKE_CXX_FLAGS -Wunused-function)
+
 set(TEGRA_COMPILER_FLAGS "")
 
 if(CV_GCC OR CV_CLANG)
diff --git a/3rdparty/cpufeatures/cpu-features.h b/3rdparty/cpufeatures/cpu-features.h
index 1e9724197a..e109f02cf0 100644
--- a/3rdparty/cpufeatures/cpu-features.h
+++ b/3rdparty/cpufeatures/cpu-features.h
@@ -30,6 +30,7 @@
 
 #include <sys/cdefs.h>
 #include <stdint.h>
+#include <string.h>
 
 __BEGIN_DECLS