#51844: qt4-mac link error lc++ not found ------------------------------------+-------------------------------- Reporter: kenneth.f.cunningham@… | Owner: macports-tickets@… Type: defect | Status: new Priority: Normal | Milestone: Component: ports | Version: 2.3.4 Keywords: | Port: qt4-mac ------------------------------------+-------------------------------- MacOSX 10.6.8, is setup using <https://trac.macports.org/wiki/LibcxxOnOlderSystems>. Installing qt4-mac fails with error -lc++ not found. Log attached. Trying link manually, with verbose setting: {{{ $ pwd /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt4-mac/qt4-mac/work /qt-everywhere-opensource-src-4.8.7/src/tools/moc $ /opt/local/bin/clang++-mp-3.7 -v -L/opt/local/lib -Wl,-headerpad_max_install_names -stdlib=libc++ -arch x86_64 -Wl,-syslibroot,/Xcode3/SDKs/MacOSX10.6.sdk -Xarch_x86_64 -mmacosx- version-min=10.6 -Xarch_x86_64 -mmacosx-version-min=10.6 -o ../../../bin/moc release-shared/moc.o release-shared/preprocessor.o release-shared/generator.o release-shared/parser.o release-shared/token.o release-shared/main.o -L/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt4-mac/qt4-mac/work /qt-everywhere-opensource-src-4.8.7/src/tools/bootstrap -lbootstrap -framework CoreServices -framework ApplicationServices -lz -lz clang version 3.7.1 (tags/RELEASE_371/final) Target: x86_64-apple-darwin10.8.0 Thread model: posix "/opt/local/libexec/llvm-3.7/bin/ld" -demangle -dynamic -arch x86_64 -macosx_version_min 10.6.0 -o ../../../bin/moc -lcrt1.10.6.o -L/opt/local/lib -L/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt4-mac/qt4-mac/work /qt-everywhere-opensource-src-4.8.7/src/tools/bootstrap -headerpad_max_install_names -syslibroot /Xcode3/SDKs/MacOSX10.6.sdk release-shared/moc.o release-shared/preprocessor.o release- shared/generator.o release-shared/parser.o release-shared/token.o release- shared/main.o -lbootstrap -framework CoreServices -framework ApplicationServices -lz -lz -lc++ -lSystem /opt/local/libexec/llvm-3.7/bin/../lib/clang/3.7.1/lib/darwin/libclang_rt.osx.a ld: library not found for -lc++ clang: error: linker command failed with exit code 1 (use -v to see invocation) }}} libc++ is present in /usr/local, and other ports seem to install OK. {{{ $ pwd /usr/lib $ ls -la libc* -rwxr-xr-x 1 root admin 1186580 12 Jan 2016 libc++.1.dylib lrwxr-xr-x 1 root admin 14 12 Jan 2016 libc++.dylib -> libc++.1.dylib -rwxr-xr-x 1 root admin 431040 24 Nov 2015 libc++abi.dylib lrwxr-xr-x 1 root wheel 15 25 Feb 2015 libc.dylib -> libSystem.dylib }}} might be related to this ticket <https://trac.macports.org/ticket/50481> but seems different, as "-stdlib=libc++" seems to be present in the command line above. My macports.conf relevant part: {{{ # $Id: macports.conf.in 117120 2014-02-17 00:55:33Z jmr@macports.org $ cxx_stdlib libc++ buildfromsource always delete_la_files yes default_compilers macports-clang-3.7 macports-clang-3.4 macports- clang-3.3 gcc-4.2 apple-gcc-4.2 gcc-4.0 build_arch x86_64 }}} Thanks. -- Ticket URL: <https://trac.macports.org/ticket/51844> MacPorts <https://www.macports.org/> Ports system for OS X