[MacPorts] #51542: clang-3.8 and clang-3.9 fail to function due to rpath

[MacPorts]

#51542: clang-3.8 and clang-3.9 fail to function due to rpath
-------------------------------------+------------------------
  Reporter:  kenneth.f.cunningham@…  |      Owner:  jeremyhu@…
      Type:  defect                  |     Status:  new
  Priority:  Normal                  |  Milestone:
 Component:  ports                   |    Version:  2.3.4
Resolution:                          |   Keywords:
      Port:  clang-3.8               |
-------------------------------------+------------------------

Comment (by kenneth.f.cunningham@…):

 Jeremy -- adding @loader_path/  to the rpaths seems to fix the issue with
 snowleopard.

 {{{
 sudo install_name_tool -add_rpath @loader_path/
 /opt/local/libexec/llvm-3.8/bin/../lib/libLTO.dylib

 $ otool -l /opt/local/libexec/llvm-3.8/bin/../lib/libLTO.dylib | grep -A2
 LC_RPATH
           cmd LC_RPATH
       cmdsize 32
          path @loader_path (offset 12)
 --
           cmd LC_RPATH
       cmdsize 40
          path @executable_path/../lib (offset 12)
 --
           cmd LC_RPATH
       cmdsize 32
          path @loader_path/ (offset 12)


 }}}

 {{{
 $ clang -v hello.c -o hello
 clang version 3.8.0 (branches/release_38 262722)
 Target: x86_64-apple-darwin10.8.0
 Thread model: posix
 InstalledDir: /opt/local/libexec/llvm-3.8/bin
  "/opt/local/libexec/llvm-3.8/bin/clang" -cc1 -triple x86_64-apple-
 macosx10.6.0 -Wdeprecated-objc-isa-usage -Werror=deprecated-objc-isa-usage
 -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name
 hello.c -mrelocation-model pic -pic-level 2 -mthread-model posix
 -mdisable-fp-elim -masm-verbose -munwind-tables -target-cpu core2 -target-
 linker-version 136 -v -dwarf-column-info -debugger-tuning=lldb -resource-
 dir /opt/local/libexec/llvm-3.8/bin/../lib/clang/3.8.0 -fdebug-
 compilation-dir /Users/Shared/test_llvm -ferror-limit 19 -fmessage-length
 80 -stack-protector 1 -fblocks -fobjc-runtime=macosx-10.6.0 -fencode-
 extended-block-signature -fmax-type-align=16 -fdiagnostics-show-option
 -fcolor-diagnostics -o /var/folders/I0/I0fOotq3ErGZHYxrmmWiqU+++TI/-Tmp
 -/hello-d43f94.o -x c hello.c
 clang -cc1 version 3.8.0 based upon LLVM 3.8.0 default target x86_64
 -apple-darwin10.8.0
 #include "..." search starts here:
 #include <...> search starts here:
  /usr/local/include
  /opt/local/libexec/llvm-3.8/bin/../lib/clang/3.8.0/include
  /usr/include
  /System/Library/Frameworks (framework directory)
  /Library/Frameworks (framework directory)
 End of search list.
  "/opt/local/libexec/llvm-3.8/bin/ld" -demangle -dynamic -arch x86_64
 -macosx_version_min 10.6.0 -o hello -lcrt1.10.6.o
 /var/folders/I0/I0fOotq3ErGZHYxrmmWiqU+++TI/-Tmp-/hello-d43f94.o -lSystem

 $ ./hello
 hello world
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/51542#comment:15>
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