[SR-834] Very unhelpful error message when clang++ cannot be invoked
#5392
Comments
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I don't understand the bug specifically, we don't hide any errors deliberately. Sounds like something higher in the toolchain is not correctly erroring out. |
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This doesn't sound like an error that came from the tool that was invoked, but rather an error emitted by SwiftPM itself. |
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This is related to SR-2271 |
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It's possible that they are in fact the same issue, but there might be a difference between the "no toolchain" case and the "clang failed to be invoked" error |
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After a bunch of testing of what happens when `clang\\` isn't available, I do think that this is the same issue as https://bugs.swift.org/browse/SR-2271. When `clang\\` is available but fails, I get proper error output, so that case seems to have been fixed. I have tried Ubuntu 14.04 and 15.10. |
Additional Detail from JIRA
md5: 711f49fece37277d9827e4e8154a0f1e
duplicates:
clangis installedrelates to:
Issue Description:
On linux, with version Swift-Ubuntu-14.04-Snapshot-2016-02-25.
I tried to build a small hello world program with a library linked to it and lost a lot of time because the swift build command is pretty silent.
It tells you to use -v to output more but it just shows you what it is doing.
In the end I had to copy all the failing children commands with -v until seeing the real error when clang finally appeared.
And what an error : clang++: command not found.
This is a pretty dumb error but some more complicated errors might give a hard time to the user trying to debug.
It would be great to bring the errors all the way up with or without -v.
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