[LLVMdev] rpaths in llvm binaries

[Larson, Timothy E.]

Hello LLVM devs,

I am trying to package llvm for NetBSD.  The package checker scripts are complaining about bad rpaths in the binaries.  I see that they are relative to the build directory.  I have no idea why that would be.  Can you explain?

If I build as myself, for testing (e.g.):

$ readelf -d ~/downloads/llvm-2.6/Release/bin/llvm-ar

Dynamic section at offset 0x15af28 contains 25 entries:
  Tag        Type                         Name/Value
 0x00000001 (NEEDED)                     Shared library: [libpthread.so.0]
 0x00000001 (NEEDED)                     Shared library: [libstdc++.so.6]
 0x00000001 (NEEDED)                     Shared library: [libm.so.0]
 0x00000001 (NEEDED)                     Shared library: [libgcc_s.so.1]
 0x00000001 (NEEDED)                     Shared library: [libc.so.12]
 0x0000000f (RPATH)                      Library rpath: [/home/tim/downloads/llvm-2.6/Release/bin]
 0x0000000c (INIT)                       0x804dfe0
.............

As root, for packaging:

# readelf -d /usr/pkg/bin/llvm-ar

Dynamic section at offset 0x152028 contains 25 entries:
  Tag        Type                         Name/Value
 0x00000001 (NEEDED)                     Shared library: [libpthread.so.0]
 0x00000001 (NEEDED)                     Shared library: [libstdc++.so.6]
 0x00000001 (NEEDED)                     Shared library: [libm.so.0]
 0x00000001 (NEEDED)                     Shared library: [libgcc_s.so.1]
 0x00000001 (NEEDED)                     Shared library: [libc.so.12]
 0x0000000f (RPATH)                      Library rpath: [/usr/pkg/lib:/usr/pkgsrc/wip/llvm/work.i386/llvm-2.6/Release/bin]
 0x0000000c (INIT)                       0x804e1c0
.......

In the latter case, it ought to find the binaries in /usr/pkg/lib and never need to worry about the second path, but that second (in the former case, only) path ought not be there anyway.  Should it?  Why would you include an rpath from the build directory?

Thanks,
Tim

PS  Please cc me on replies.