opencv/modules/core/perf/perf_precomp.hpp

#ifdef __GNUC__
#  pragma GCC diagnostic ignored "-Wmissing-declarations"
#  if defined __clang__ || defined __APPLE__
#    pragma GCC diagnostic ignored "-Wmissing-prototypes"
#    pragma GCC diagnostic ignored "-Wextra"
#  endif
#endif

#ifndef __OPENCV_PERF_PRECOMP_HPP__
#define __OPENCV_PERF_PRECOMP_HPP__

#include "opencv2/ts/ts.hpp"

#ifdef GTEST_CREATE_SHARED_LIBRARY
#error no modules except ts should have GTEST_CREATE_SHARED_LIBRARY defined
#endif

#endif
Ignored warnings from gtest with precompiled headers enabled 13 years ago			`#ifdef __GNUC__`
			`# pragma GCC diagnostic ignored "-Wmissing-declarations"`
Fix OS X build warnings 12 years ago			`# if defined __clang__ \|\| defined __APPLE__`
Suppress more warnings in gtest on OS X 12 years ago			`# pragma GCC diagnostic ignored "-Wmissing-prototypes"`
			`# pragma GCC diagnostic ignored "-Wextra"`
			`# endif`
Ignored warnings from gtest with precompiled headers enabled 13 years ago			`#endif`

Performance testing branch is merged back into trunk 13 years ago			`#ifndef __OPENCV_PERF_PRECOMP_HPP__`
			`#define __OPENCV_PERF_PRECOMP_HPP__`

			`#include "opencv2/ts/ts.hpp"`

Set stricter warning rules for gcc 13 years ago			`#ifdef GTEST_CREATE_SHARED_LIBRARY`
Performance testing branch is merged back into trunk 13 years ago			`#error no modules except ts should have GTEST_CREATE_SHARED_LIBRARY defined`
			`#endif`

			`#endif`