Merge pull request opencv#17468 from liqi-c:sharedlib_build_problem

TEngine installation rules fix for static build

* Modify cmake config error for -DBUILD_SHARED_LIBS=OFF

* Modify for not install tengine include directory

* Update compile error.

* move install command to tengine/CMakeLists.txt

* rm include dir when make install,only build static lib will install libtengine.a

Author: liqi-c

3rdparty/libtengine/tengine.cmake

@@ -22,7 +22,7 @@
 #         sqfu@openailab.com
 #
 
-SET(TENGINE_COMMIT_VERSION "2f3cd86217f3530c8e4a82f3ed5af14c7a4e3943")
+SET(TENGINE_COMMIT_VERSION "8a4c58e0e05cd850f4bb0936a330edc86dc0e28c")
 SET(OCV_TENGINE_DIR "${OpenCV_BINARY_DIR}/3rdparty/libtengine")
 SET(OCV_TENGINE_SOURCE_PATH "${OCV_TENGINE_DIR}/Tengine-${TENGINE_COMMIT_VERSION}")
 
@@ -34,7 +34,7 @@ IF(EXISTS "${OCV_TENGINE_SOURCE_PATH}")
 ELSE()
 	SET(OCV_TENGINE_FILENAME "${TENGINE_COMMIT_VERSION}.zip")#name2
 	SET(OCV_TENGINE_URL "https://github.com/OAID/Tengine/archive/") #url2
-	SET(tengine_md5sum 9124324b6e2b350012e46ae1db4bad7d) #md5sum2
+	SET(tengine_md5sum f51ca8f3963faeeff3f019a6f6edc206) #md5sum2
 
 	#MESSAGE(STATUS "**** TENGINE DOWNLOAD BEGIN ****")
 	ocv_download(FILENAME ${OCV_TENGINE_FILENAME}
@@ -69,15 +69,13 @@ if(BUILD_TENGINE)
 	   elseif(${ANDROID_ABI} STREQUAL "arm64-v8a")
 			   SET(CONFIG_ARCH_ARM64 ON)
 	   endif()
-	   SET(Tengine_LIB "tengine" CACHE INTERNAL "")
 	else()
 		# linux system
 		if(CMAKE_SYSTEM_PROCESSOR STREQUAL arm)
 			   SET(CONFIG_ARCH_ARM32 ON)
 		elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL aarch64) ## AARCH64
 			   SET(CONFIG_ARCH_ARM64 ON)
 		endif()
-		SET(Tengine_LIB "tengine" CACHE INTERNAL "")
 	endif()
 
 	SET(BUILT_IN_OPENCV ON) ## set for tengine compile discern .
@@ -86,6 +84,6 @@ if(BUILD_TENGINE)
 		add_subdirectory("${OCV_TENGINE_SOURCE_PATH}" "${OCV_TENGINE_DIR}/build")
 	else()
 		message(WARNING "TENGINE: Missing 'CMakeLists.txt' in source code package: ${OCV_TENGINE_SOURCE_PATH}")
-		SET(HAVE_TENGINE 1)
 	endif()
+	SET(Tengine_LIB "tengine" CACHE INTERNAL "")
 endif()