From aa70199ce13d7ce1a47d8614b0ff91d4fd10b291 Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.alekhin@intel.com>
Date: Tue, 14 Nov 2017 19:25:16 +0300
Subject: [PATCH] build: avoid exporting of unnecessary symbols from Python
 bindings

---
 modules/python/common.cmake | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules/python/common.cmake b/modules/python/common.cmake
index 265158a602..7582f77297 100644
--- a/modules/python/common.cmake
+++ b/modules/python/common.cmake
@@ -4,6 +4,9 @@ set(PYTHON_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../")
 # try to use dynamic symbols linking with libpython.so
 set(OPENCV_FORCE_PYTHON_LIBS OFF CACHE BOOL "")
 string(REPLACE "-Wl,--no-undefined" "" CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS}")
+if(NOT WIN32 AND NOT APPLE AND NOT OPENCV_PYTHON_SKIP_LINKER_EXCLUDE_LIBS)
+  set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -Wl,--exclude-libs=ALL")
+endif()
 
 ocv_add_module(${MODULE_NAME} BINDINGS)