#51801: qt5: support older versions of OS X via different versions of Qt 5 ------------------------------+------------------------ Reporter: davide.liessi@… | Owner: mcalhoun@… Type: enhancement | Status: new Priority: Normal | Milestone: Component: ports | Version: Resolution: | Keywords: Port: qt5 | ------------------------------+------------------------ Comment (by kenneth.f.cunningham@…): I took a stab at starting out. I have Snow leopard with 10.6.8 and the LibCxxOnOlderSystems libc++ upgrade installed. Clang-3.8 is installed and working, and code seems to compile well with it. To get started, I altered the qt5-1.0.tcl file (the qt5 portgroup) to change the min OS version to SL: {{{ set qt5_min_tested_version 10 }}} and then ran {{{ sudo port -v configure qt5 configure.compiler=macports-clang-3.8 }}} It got started, then stopped due to a deployment target error when somehow /Developer/usr/bin/clang++ was called in instead of the macports- clang-3.8 compiler. This errored out, no surprise. Somewhere qt5 (complicated as it is, to be sure) calls in it's own configuration for clang, and does not fully follow the macports set version. I think it might be in pkg-config (?) as I can't (so far) find it hard coded in to the copious and diffuse qt5 configuration and make files. Here's the last error I came to: {{{ This is the Qt Open Source Edition. You are licensed to use this software under the terms of the Lesser GNU General Public License (LGPL) versions 2.1. You are also licensed to use this software under the terms of the GNU Lesser General Public License (LGPL) versions 3. You have already accepted the terms of the Open Source license. Running configuration tests (phase 1)... /Developer/usr/bin/clang++ -c -fvisibility=hidden fvisibility.c clang: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated Symbol visibility control enabled. ld: unknown option: --enable-new-dtags clang: error: linker command failed with exit code 1 (use -v to see invocation) /Developer/usr/bin/clang++ -o libtest.so -shared -Wl,-Bsymbolic-functions -fPIC bsymbolic_functions.c clang: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated ld: unknown option: -Bsymbolic-functions clang: error: linker command failed with exit code 1 (use -v to see invocation) Symbolic function binding disabled. DEFAULT_INCDIRS="/usr/include /usr/local/include" DEFAULT_LIBDIRS="/lib /usr/lib" Done running configuration tests. Creating qmake... /Developer/usr/bin/clang++ -c -o project.o -pipe -stdlib=libc++ -isysroot /Developer/SDKs/MacOSX10.6.sdk -mmacosx-version-min=10.6 -ffunction- sections -O2 -fconstant-cfstrings -MMD -g -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt5/qt5-qtbase/work /qtbase-opensource-src-5.6.1/qmake -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt5/qt5-qtbase/work /qtbase-opensource-src-5.6.1/qmake/library -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt5/qt5-qtbase/work /qtbase-opensource-src-5.6.1/qmake/generators -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt5/qt5-qtbase/work /qtbase-opensource-src-5.6.1/qmake/generators/unix -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt5/qt5-qtbase/work /qtbase-opensource-src-5.6.1/qmake/generators/win32 -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt5/qt5-qtbase/work /qtbase-opensource-src-5.6.1/qmake/generators/mac -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt5/qt5-qtbase/work /qtbase-opensource-src-5.6.1/qmake/generators/integrity -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt5/qt5-qtbase/work /qtbase-opensource-src-5.6.1/include -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt5/qt5-qtbase/work /qtbase-opensource-src-5.6.1/include/QtCore -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt5/qt5-qtbase/work /qtbase-opensource-src-5.6.1/include/QtCore/5.6.1 -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt5/qt5-qtbase/work /qtbase-opensource-src-5.6.1/include/QtCore/5.6.1/QtCore -I../src/corelib/global -DHAVE_QCONFIG_CPP -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt5/qt5-qtbase/work /qtbase-opensource-src-5.6.1/mkspecs/macx-clang -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt5/qt5-qtbase/work /qtbase-opensource-src-5.6.1/tools/shared -DQT_VERSION_STR=\"5.6.1\" -DQT_VERSION_MAJOR=5 -DQT_VERSION_MINOR=6 -DQT_VERSION_PATCH=1 -DQT_BUILD_QMAKE -DQT_BOOTSTRAPPED -DPROEVALUATOR_FULL -DQT_NO_TEXTCODEC -DQT_NO_UNICODETABLES -DQT_NO_COMPONENT -DQT_NO_COMPRESS -DQT_NO_THREAD -DQT_NO_QOBJECT -DQT_NO_GEOM_VARIANT -DQT_NO_DATASTREAM -DQT_CRYPTOGRAPHICHASH_ONLY_SHA1 -DQT_JSON_READONLY -DQT_NO_STANDARDPATHS /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt5/qt5-qtbase/work /qtbase-opensource-src-5.6.1/qmake/project.cpp clang: error: invalid deployment target for -stdlib=libc++ (requires Mac OS X 10.7 or later) make: *** [project.o] Error 1 }}} in file mkspecs/macx-clang/qmake.conf the deployment target is set as it should be {{{ QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.6 }}} So I presume the deployment target of 10.7 is somewhere in the Apple default configs? Not sure of that. Next step would seem to be to find out how /Developer/usr/bin/clang++ is being called in, instead of macports- clang-3.8 ... -- Ticket URL: <https://trac.macports.org/ticket/51801#comment:2> MacPorts <https://www.macports.org/> Ports system for OS X