Skip symlink tests on Windows.

test cases/common/268 install functions and follow symlinks/meson.build

diff --git a/test cases/common/268 install functions and follow symlinks/meson.build b/test cases/common/268 install functions and follow symlinks/meson.build
index 327c021..9158ea8 100644
--- a/test cases/common/268 install functions and follow symlinks/meson.build
+++ b/test cases/common/268 install functions and follow symlinks/meson.build
@@ -1,5 +1,9 @@
 project('install_data following symlinks')
 
+if build_machine.system() == 'windows'
+    error('MESON_SKIP_TEST symlinks (typically) do not work on Windows.')
+endif
+
 install_data(
   'foo/link1',
   install_dir: get_option('datadir') / 'followed',