[cfe-dev] Build failure: <cstdarg> not found on buildbot

[Matthias Gehre via cfe-dev]

Hi,

seems that I caused a buildbot failure (sorry!) [1], because a clang-tidy
test includes <cstdarg>, which is not found on the buildbot.

The error is:
/var/lib/buildbot/slaves/hexagon-build-03/clang-hexagon-elf/llvm.obj/tools/clang/tools/extra/test/clang-tidy/Output/cppcoreguidelines-pro-type-vararg.cpp.tmp.cpp:39:10:
error: 'cstdarg' file not found [clang-diagnostic-error]
#include <cstdarg>

I have a hard time investigating, because it works on my machine.
Does anyone have an idea why is it not found on the buildbot? Do I need to
pass additional (include) flags inside the test?

Thanks, and sorry for the noise,

Matthias

[1] http://lab.llvm.org:8011/builders/clang-hexagon-elf/builds/32312
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