#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@…): OK - here's a few more clues. clang-3.4, which works out of the box, has this otool output: {{{ $ otool -l /opt/local/libexec/llvm-3.4/bin/../lib/libLTO.dylib | grep -A2 LC_RPATH cmd LC_RPATH cmdsize 40 path @executable_path/../lib (offset 12) }}} clang-3.7, which also works out of the box, has this otool output: {{{ $ otool -l /opt/local/libexec/llvm-3.7/bin/../lib/libLTO.dylib | grep -A2 LC_RPATH cmd LC_RPATH cmdsize 40 path @executable_path/../lib (offset 12) }}} clang-3.8, which did not work without modification, has this (the last entry I added with the install_name_tool: {{{ KensMacBookPro:test_llvm cunningh$ 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 48 path /opt/local/libexec/llvm-3.8/lib (offset 12) }}} and clang-3.9, which also did not work without modification, has this: {{{ $ otool -l /opt/local/libexec/llvm-3.9/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 48 path /opt/local/libexec/llvm-3.9/lib (offset 12) }}} so - strangely - the two older clang versions, with no @loader_path set, work. The newer two, with the @loader_path, do not (unless I hard code it in). I've been reading this article over <https://wincent.com/wiki/@executable_path,_@load_path_and_@rpath> and I don't see the reason this is happening, but perhaps you do. -- Ticket URL: <https://trac.macports.org/ticket/51542#comment:10> MacPorts <https://www.macports.org/> Ports system for OS X