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Diffstat (limited to 'tools/g++5ABIcheck/README')
-rw-r--r-- | tools/g++5ABIcheck/README | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/tools/g++5ABIcheck/README b/tools/g++5ABIcheck/README deleted file mode 100644 index 0017bf8942..0000000000 --- a/tools/g++5ABIcheck/README +++ /dev/null @@ -1,57 +0,0 @@ -g++5 ABI test tool -================== - -This is a simple tool to test a system for g++5's libstdc++ at runtime. - -GCC5.1 introduced a new library ABI for the C++ standard library. -The old 3.4 .. 5.0 ABI is not compatible. - -Some GNU/Linux distributions systems switched to the new ABI already -and compile plugins with the new gcc. - -If a plugin uses a c++ library that is also shipped with ardour-bundles, -the ABI of that library must match. Currently known cases: gtkmm, glibmm. - -e.g. Ingen or eq10q provided by a distro compiled with gcc5 will not -load in Ardour as provided by ardour.org compiled with gcc4 because ardour -ships an incompatible gtkmm, glibmm, cairomm, ... - -The plugin will fail to load. For example: - -``` -suil error: Unable to open UI library /usr/lib/lv2/sapistaEQv2.lv2/gui/eq10qs_gui.so (/usr/lib/lv2/sapistaEQv2.lv2/gui/eq10qs_gui.so: undefined symbol: _ZN4Glib7ustringC1ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE) -suil error: Unable to open UI library /usr/lib/lv2/vocproc.lv2/vocproc_gui.so (/usr/lib/lv2/vocproc.lv2/vocproc_gui.so: undefined symbol: _ZN3Gtk7Builder13add_from_fileERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE) -lilv_lib_open(): error: Failed to open library /usr/lib/lv2/ingen.lv2/libingen_lv2.so (/usr/lib/libingen.so.0: undefined symbol: _ZN4Glib6ModuleC1ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEENS_11ModuleFlagsEEE) -``` - -ie `Glib::ustring::ustring(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)` - - -Compilation ------------ - -This tool must be compiled on a system with gcc5.1 or later. - - make - -will fail the resulting binary does not use the new __cxx11 ABI. -The resulting binary will *not* run on systems with only the old ABI. - -For convenience (packaging gcc4 builds), pre-compiled binaries are included. - - -Check ------ - -The idea is to include the precompiled binaries in the installer - - - Ardour/gcc-4 installer must fail if the binary runs - - Ardour/gcc-5 installer must fail if the binary does not run - - -References ----------- - -https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dual_abi.html -https://wiki.debian.org/GCC5 -https://mail.gnome.org/archives/gtkmm-list/2015-June/thread.html |