remove old gcc ABI (libstc++) test tool

tools/g++5ABIcheck/Makefile

@@ -1,6 +0,0 @@
-all:
-	g++ -o gcc5stc++test.`gcc -print-multiarch` test.cc -Wall -std=c++11 -O0
-	nm gcc5stc++test.`gcc -print-multiarch` | c++filt | grep -q __cxx11
-	strip gcc5stc++test.`gcc -print-multiarch`
-
-.PHONY: all

tools/g++5ABIcheck/README

@@ -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

tools/g++5ABIcheck/test.cc

@@ -1,13 +0,0 @@
-#include <cstdio>
-#include <string>
-
-void check (std::string const& str) {
-	std::printf ("%s\n",	str.c_str());
-}
-
-int main (int argc, char **argv) {
-	std::printf ("gcc %s\n", __VERSION__);
-	std::string test("gcc5/libstc++11");
-	check (test);
-	return 0;
-}