如何在Windows上构建Ammo.js？

Question

我目前正试图按照自述文件中的说明在Windows上构建Ammo.js。我有过

• 路径中的emcc
• 通过Visual安装cmake (C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe)
• 通过巧克力安装MinGW

显然，由于我在Windows上，cmake无法解析到CMakeLists.txt中的可执行文件的任何路径

set(EMSCRIPTEN_ROOT $ENV{EMSDK}/upstream/emscripten CACHE STRING "Emscripten path")

因此，我不得不用我的二进制文件的全部路径来替换它们：

set(EMSCRIPTEN_ROOT "C:/Program Files/emsdk/upstream/emscripten" CACHE STRING "Emscripten path")
set(CMAKE_TOOLCHAIN_FILE "C:/Program Files/emsdk/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake")
set(WEBIDL_BINDER_SCRIPT "C:/Program Files/emsdk/upstream/emscripten/tools/webidl_binder.py")

现在，如果我运行cmake -B builds，那么cmake似乎没有错误地运行，但是它输出了以下文件：

​

​

cmake -B builds 
-- Building for: Visual Studio 16 2019
-- Found Python3: C:/Python39/python.exe (found version "3.9.1") found components: 
 Interpreter CMake Deprecation Warning at bullet/CMakeLists.txt:1 (cmake_minimum_required): 
 Compatibility with CMake < 2.8.12 will be removed from a future version of CMake.
 Update the VERSION argument <min> value or use a ...<max> suffix to tell CMake that the project does not need compatibility with older versions. 
 
 OPENGL FOUND
 
 nul 
 
 -- WARNING: you are using the obsolete 'GLU' package, please use 'OpenGL' instead 
 -- Could NOT find OpenGL (missing: OPENGL_opengl_LIBRARY OPENGL_glx_LIBRARY OPENGL_INCLUDE_DIR) 
 -- Configuring done 
 -- Generating done
 -- Build files have been written to: G:/dev/projects/ammo.js/builds 

没有ammo.js，没有ammo.wasm.js，也没有ammo.wasm

当我尝试使用'MinGW Makefiles'标志进行编译时，它会出错：

cmake -B builds -G 'MinGW Makefiles'
-- Found Python3: C:/Python39/python.exe (found version "3.9.1") found components: Interpreter 
CMake Error: CMake was unable to find a build program corresponding to "MinGW Makefiles".  CMAKE_MAKE_PROGRAM is not set.  You probably need to select a different build tool.
CMake Error: CMake was unable to find a build program corresponding to "MinGW Makefiles".  CMAKE_MAKE_PROGRAM is not set.  You probably need to select a different build tool.
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
-- Configuring incomplete, errors occurred!

我不能使用预构建文件作为对new Ammo.btBoxShape(new Ammo.btVector3())的调用抛出Uncaught (in promise) RuntimeError: memory access out of bounds，据我理解，在编译期间我需要分配一个更大的堆。

那么，如何在Windows上构建Ammo.js呢？

Answer 1

这里有两个独立的问题

1. 从巧克力中安装的MinGw不包括mingw32-make.exe。我卸载了它，得到了MinGW-安装程序，并按照下面的回答：CMake错误: CMake无法找到与"MinGW Makefiles“相对应的构建程序
2. 我必须在第一个命令之后实际运行cmake --build builds，这是我在文档中忽略的。