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When using MSVCs
cl.exe
an accompanying script sets the right environment variables, such asINCLUDE
.In visual studio this is
vcvarsall.bat
,vcvars64.bat
or a similar script, which can be discovered in a relative path fromcl.exe
.However, on the Dart CI bots, we use a custom script which serves the same purpose.
See https://chromium.googlesource.com/chromium/tools/depot_tools/+/master/win_toolchain/.
We might as well make the script configurable in general, as maybe more compilers require setting the right environment variables. (Side note: on the Dart CI we also use a
clang.exe
with this same environment variables script so that theclang.exe
can also find the Windows implementations forprintf
etc.)Dart CL: https://dart-review.googlesource.com/c/sdk/+/298580