meson: propagate optimization flag for linking on Emscripten

Signed-off-by: Kohei Tokunaga <[email protected]>

Author: ktock

meson.build

@@ -399,6 +399,9 @@ elif host_os == 'emscripten'
     qemu_common_flags += ['-DWASM64_MEMORY64=' + memory64]
     qemu_ldflags += ['-sMEMORY64=' + memory64, '-DWASM64_MEMORY64=' + memory64]
   endif
+  if get_option('optimization') != 'plain'
+    emulator_link_args += ['-O' + get_option('optimization')]
+  endif
 endif
 
 # Choose instruction set (currently x86-only)