tests: Disable Boost extralib test on macOS

Since upgrading Boost to version 1.73, this test segfaults on macOS
when dynamically linked. Disable it to keep the rest of the CI
reliable.

Mitigates: mesonbuild#7535
Signed-off-by: Simon McVittie <smcv@debian.org>

test cases/frameworks/1 boost/meson.build

@@ -54,7 +54,11 @@ python3module = shared_library('python3_module', ['python_module.cpp'], dependen
 test('Boost linktest', linkexe)
 test('Boost UTF test', unitexe)
 test('Boost nomod', nomodexe)
-test('Boost extralib test', extralibexe)
+if host_machine.system() != 'darwin' or s
+  # Segfaults on macOS with dynamic linking since Boost 1.73
+  # https://github.com/mesonbuild/meson/issues/7535
+  test('Boost extralib test', extralibexe)
+endif
 
 # explicitly use the correct python interpreter so that we don't have to provide two different python scripts that have different shebang lines
 python2interpreter = find_program(python2.path(), required: false, disabler: true)