交叉编译ZLMediaKit

先交叉编译openssl：

交叉编译openssl_hechangfei的博客-CSDN博客

得到openssl库

交叉编译ZLMediaKit

修改CMekelists.txt

#查找openssl是否安装
#find_package(OpenSSL QUIET)
#if (OPENSSL_FOUND AND ENABLE_OPENSSL)
#    message(STATUS "found library:${OPENSSL_LIBRARIES},ENABLE_OPENSSL defined")
#    include_directories(${OPENSSL_INCLUDE_DIR})
#    add_definitions(-DENABLE_OPENSSL)
#    list(APPEND link_LIB_LIST ${OPENSSL_LIBRARIES})
#    if (CMAKE_SYSTEM_NAME MATCHES "Linux" AND OPENSSL_USE_STATIC_LIBS)
#        list(APPEND link_LIB_LIST dl)
#    endif ()
#else ()
#    message(WARNING "openssl未找到，rtmp将不支持flash播放器，https/wss/rtsps/rtmps也将失效")
#endif ()
set(OPENSSL_INCLUDE_DIR /home/openssl-1.0.2p/arm-install/include)
set(OPENSSL_LIBRARIES /home/openssl-1.0.2p/arm-install/lib/libssl.so /home/openssl-1.0.2p/arm-install/lib/libcrypto.so)
include_directories(${OPENSSL_INCLUDE_DIR})
add_definitions(-DENABLE_OPENSSL)
list(APPEND link_LIB_LIST ${OPENSSL_LIBRARIES})
if (CMAKE_SYSTEM_NAME MATCHES "Linux" AND OPENSSL_USE_STATIC_LIBS)
        list(APPEND link_LIB_LIST dl)
endif()

保存退出，然后创建build并进入build目录

$ mkdir build && cd build

开始编译

#32位
cmake .. -DCMAKE_BUILD_TYPE=Release 
         -DCMAKE_SYSTEM_NAME=Linux -DCMAKE_SYSTEM_VERSION=1 -DCMAKE_SYSTEM_PROCESSOR=arm 
         -DCMAKE_C_COMPILER=arm-linux-gnueabihf-gcc 
         -DCMAKE_CXX_COMPILER=arm-linux-gnueabihf-g++


#64位
cmake .. -DCMAKE_BUILD_TYPE=Release 
         -DCMAKE_SYSTEM_NAME=Linux -DCMAKE_SYSTEM_VERSION=1 -DCMAKE_SYSTEM_PROCESSOR=aarch64 
         -DCMAKE_C_COMPILER=aarch64-linux-gnu-gcc 
         -DCMAKE_CXX_COMPILER=aarch64-linux-gnu-g++

make -j

编译完成后会在build的上级目录生成release目录，可执行文件和库都在release目录中

交叉编译ZLMediaKit

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