[llvm-bugs] [Bug 39349] New: cannot execute scan-build-7 due to extra <U+200B>

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=39349

            Bug ID: 39349
           Summary: cannot execute scan-build-7 due to extra <U+200B>
           Product: Packaging
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: deb packages
          Assignee: unassignedbugs at nondot.org
          Reporter: hannes.franke at smartoptics.de
                CC: llvm-bugs at lists.llvm.org

The `scan-build` perl script installed into `/usr/bin/scan-build` contains an
extra unicode-char <U+200B> which trips up the perl interpreter.

To reproduce:
"deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-7 main" >
/etc/apt/sources.list.d/llvm-latest.list
apt-get update
apt-get install clang-tools-7
/usr/bin/scan-build-7

Output:

Unrecognized character \xE2; marked by <-- HERE after /]*$)/ or
<-- HERE near column 116 at /usr/bin/scan-build-7 line 1082.


Inspecting the file /usr/bin/scan-build-7 at line 1081-1083 (with e.g. vim or
less)

      $Cmd =~ /(.*\/?llvm-gcc[^\/]*$)/ or
<U+200B>      $Cmd =~ /(.*\/?clang[^\/]*$)/ or
      $Cmd =~ /(.*\/?ccc-analyzer[^\/]*$)/) {

shows the extra <U+200B> 'ZERO WIDTH SPACE' character.
If I remove this character everything works as expected.

It doesn't seem to exist inside the sources themselves, at least the ones
offered for download (https://releases.llvm.org/download.html#7.0.0), so I
guess it is a packaging-only problem.

The package downloaded is: (snips from apt-get install)
Get:1 http://apt.llvm.org/xenial llvm-toolchain-xenial-7/main amd64
clang-tools-7 amd64 1:7~svn342187-1~exp1~20180920124227.28
Setting up clang-tools-7 (1:7~svn342187-1~exp1~20180920124227.28)

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