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better error message for broken build tools #663

bos opened this Issue · 1 comment

3 participants


(Imported from Trac #671, reported by @dcoutts on 2010-04-30)


Configuring haskell-src-exts-1.9.0...
setup: happy version >=1.17 is required but the version of
/usr/local/bin/happy could not be determined.
The actual problem is:

/usr/local/bin/happy: error while loading shared libraries: cannot open shared object file: No such file or directory
We could produce a better error message in this situation. If we get a non-0 exit code when we check the --version then we can probably safely report that the program is probably broken. Of course if we get some result text back and we cannot extract and parse the version number then that's different.


Given that there is no activity on this issue since 2010, I propose closing. Please re-open or create a new issue if this problem still exists.

/cc @tibbe

@tibbe tibbe closed this
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