[LLVMbugs] [Bug 19154] New: When configparser-3.2.0 is installed, LLVM-3.4 won't compile

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=19154

            Bug ID: 19154
           Summary: When configparser-3.2.0 is installed, LLVM-3.4 won't
                    compile
           Product: new-bugs
           Version: 3.4
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: keeperofdakeys at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 12235
  --> http://llvm.org/bugs/attachment.cgi?id=12235&action=edit
A build-log, showing the build failure.

The package configparser is a backport of python3's ConfigParser to python2.
When version 3.2.0 is installed, LLVM-3.4 fails to build, because the parsing
of LLVMBuild.txt files fails. The user visible error is LLVM not being able to
find a target to build (can be seen in attached log).

When version 3.3 of configparser is installed, or configparser is not installed
at all, LLVM-3.4 compiles without error. Either the build system should ensure
version 3.2 is not installed, or whatever issue is causing this should be
fixed. I'm unsure of how, or why configparser-3.2 causes the parsing issue.
This was not an issue in llvm-3.3, because ConfigParser (built-in to python)
was always used.

Some more details are provided at a gentoo bug report,
https://bugs.gentoo.org/show_bug.cgi?id=500856

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