Bug#759538: libclang1-3.4: multiple versions of libclang causing codelite to segfault

[James Cowgill]

Package: libclang1-3.4
Version: 1:3.4.2-8
Severity: important
Control: affects -1 codelite-plugins

Hi,

The clang co-installable update is causing crashes is codelite when multiple
versions of libclang1 are installed.

Normally codelite (with codelite-plugins) will load libclang.so.1 and
liblldb.so.1 from LLVM 3.4 and everything works:
 codelite
   libclang.so.1 (symlink to libclang-3.4.so.1)
     libLLVM-3.4.so.1
   LLDBDebugger.so
     liblldb.so.1
       (libLLVM-3.4.so.1 already loaded)

But if you install libclang1-3.6 at the same time, codelite will load that
library because libclang1.so.1 now points to it:
 codelite
   libclang.so.1 (symlink to libclang-3.6.so.1)
     libLLVM-3.6.so.1
   LLDBDebugger.so
     liblldb.so.1
       libLLVM-3.4.so.1 (symbol collision)

Then codelite segfaults in the constructors for libLLVM-3.4 due to (I assume) a
symbol collision with libLLVM-3.6.so.1

As a temporary workaround, I can add a Breaks: libclang1-3.5, libclang1-3.6 to
codelite but that doesn't seem very clean. In my opinion, allowing
co-installation of libraries whose sonames are the same is a recipe for
disaster.

Thanks,
James

-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
mipsel

Kernel: Linux 3.14-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages libclang1-3.4 depends on:
ii  libc6              2.19-10
ii  libffi6            3.1-2
ii  libgcc-4.9-dev     4.9.1-9
ii  libgcc1            1:4.9.1-9
ii  libllvm3.4         1:3.4.2-8
ii  libobjc-4.9-dev    4.9.1-9
ii  libstdc++-4.9-dev  4.9.1-9
ii  libstdc++6         4.9.1-9
ii  libtinfo5          5.9+20140712-2
ii  multiarch-support  2.19-10

libclang1-3.4 recommends no packages.

libclang1-3.4 suggests no packages.

-- no debconf information