问题
I'm trying to build libwebp.dll for webp, using these instructions (I downloaded this source code)
However, I'm getting the error:
Makefile.vc(18) : fatal error U1050: Unable to auto-detect toolchain architecture! If cl.exe is in your PATH rerun nmake with ARCH=. Stop.`
on command nmake /f Makefile.vc CFG=release-dynamic RTLIBCFG=dynamic OBJDIR=output in the Developer Command Prompt for Visual Studio 2017 (Community Edition).
I don't see file cl.exe anywhere in C:\Program Files (x86)\Microsoft Visual Studio 14.0
How can I fix this?
回答1:
Turns out I had to install Visual C++. See this post: Visual studio doesn't have cl.exe
After that I could use this command and it works:
nmake /f Makefile.vc CFG=release-dynamic RTLIBCFG=dynamic OBJDIR=output ARCH=x64
来源：https://stackoverflow.com/questions/50050311/makefile-vc18-fatal-error-u1050-unable-to-auto-detect-toolchain-architectur