Question

我具有以下目录结构：

~/emsdk
~/opencv

我正在尝试构建OpenCV.js

我愿意

cd ~/opencv
python ./platforms/js/build_js.py build_js --emscripten_dir=~/emsdk/

这将导致：

CMake Error at /usr/share/cmake-3.10/Modules/CMakeDetermineSystem.cmake:100 (message):
  Could not find toolchain file:
  ~/emsdk/cmake/Modules/Platform/Emscripten.cmake
Call Stack (most recent call first):
  CMakeLists.txt:135 (project)


CMake Error: CMake was unable to find a build program corresponding to "Unix Makefiles".  CMAKE_MAKE_PROGRAM is not set.  You probably need to select a different build tool.
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
-- Configuring incomplete, errors occurred!
Traceback (most recent call last):
  File "./platforms/js/build_js.py", line 227, in <module>
    builder.config()
  File "./platforms/js/build_js.py", line 167, in config
    execute(cmd)
  File "./platforms/js/build_js.py", line 23, in execute
    raise Fail("Child returned: %s" % retcode)
__main__.Fail: Child returned: 1

系统中同时安装了gcc和g ++。在运行此程序之前，我去了〜/ emsdk并运行：

./emsdk update
./emsdk install latest
./emsdk activate latest
source ./emsdk_env.sh

我不确定为什么会失败。我正在尝试遵循此[指南] [1]。

编辑：

如果有帮助，我正在Ubuntu上执行此操作

编辑2：

问题的重要部分似乎来自以下消息：

 CMake Error at /usr/share/cmake-3.10/Modules/CMakeDetermineSystem.cmake:100 (message):
      Could not find toolchain file:
      ~/emsdk/cmake/Modules/Platform/Emscripten.cmake

没有emsdk/cmake目录。

编辑3：

发布答案，这就是路径

Answer 1

在 MACOSX 上：

它有效：

python /path-to/opencv-src/platforms/js/build_js.py /path-to/build_js --emscripten_dir=/path-to/emsdk/upstream/emscripten

注意：

重要提示：--emscripten_dir=/path-to/emsdk/upstream/emscripten
build_js：创建一个空文件夹

谢谢大家。

Answer 2

问题是我的愚蠢假设。写作：

python ./platforms/js/build_js.py build_js --emscripten_dir=~/emsdk/

命令错误，正确的命令是：

python ./platforms/js/build_js.py build_js --emscripten_dir=/home/username/emsdk/emscripten/1.38.30/

Answer 3

对我来说，这可行： python ./platforms/js/build_js.py build_js --emscripten_dir = / home /用户名/ emsdk / upstream / emscripten

构建OpenCV.js失败。 CMake找不到已安装的编译器？

3 个答案: