illumos ld doesn't support --version-script.

--- libwnck-43.2/libwnck/meson.build.orig
+++ libwnck-43.2/libwnck/meson.build
@@ -107,7 +107,6 @@
 
 mapfile = MODULE_NAME + '.map'
 libwnck_ldflags = [
-  '-Wl,--version-script,@0@/@1@'.format(meson.current_source_dir(), mapfile),
 ]
 
 if get_option('deprecation_flags')