cmake cross compile找不到头文件

Question

我想在openwrt平台上交叉编译 amazon Alexa SDK ，但在执行curl/curl.h时找不到make，这是我的操作步骤：

1. 创建一个cmake工具链文件，如下所示：

   SET(CMAKE_SYSTEM_NAME Linux)
   SET(CMAKE_SYSTEM_VERSION 1)
   SET(CMAKE_C_COMPILER  arm-openwrt-linux-muslgnueabi-gcc)
   SET(CMAKE_CXX_COMPILER  arm-openwrt-linux-muslgnueabi-g++)
   
   SET(CMAKE_FIND_ROOT_PATH  /home/sundq/workspace/Develop/out/astar-parrot/staging_dir/target/rootfs)
   
   SET(CMAKE_SYSROOT  /home/sundq/workspace/Develop/out/astar-parrot/staging_dir/target/rootfs)
   
   SET(CMAKE_LIBRARY_PATH  /home/sundq/workspace/Develop/out/astar-parrot/staging_dir/target/rootfs/usr/lib)
   
   SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
   SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
   SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
   
   SET(CMAKE_C_FLAGS "-I/home/sundq/workspace/Develop/out/astar-parrot/staging_dir/target/rootfs/usr/include")
   
   SET(CMAKE_CXX_FLAGS "-I/home/sundq/workspace/Develop/out/astar-parrot/staging_dir/target/rootfs/usr/include")
   

2. 像这样执行cmake：

   cmake ../avs-device-sdk-master-v1.0.2/ -DCMAKE_BUILD_TYPE=MINSIZEREL -DCMAKE_TOOLCHAIN_FILE=../toolchain.cmake
   

3. 执行make，输出为：

   /AVSCommon/AVS/src/AlexaClientSDKInit.cpp:18:23: fatal error: curl/curl.h: No such file or directory
   

我确定curl / curl.h文件存在于/home/sundq/workspace/Develop/out/astar-parrot/staging_dir/target/rootfs/usr/include目录中。

Answer 1

正确的方法是为Alexa创建一个OpenWrt包，并添加libcurl作为依赖。

检查here如何创建包。