Fix librt logic

meson.build

@@ -142,22 +142,26 @@ system_lib_names = {
 system_deps = [
   dependency('threads'),
   dependency('dl', required: false),
-  (host_os == 'linux') ? [dependency('rt', required: false)] : [],
 ]
 foreach name : system_lib_names.get(host_os, [])
   system_deps += cpp.find_library(name)
 endforeach
+if host_os == 'linux' and not cpp.has_function('clock_gettime')
+  system_deps += cpp.find_library('rt')
+endif
 zlib_dep = dependency('zlib')
 
 if not meson.can_run_host_binaries()
   system_native_deps = [
     dependency('threads', native: true),
     dependency('dl', native: true, required: false),
-    (build_os == 'linux') ? [dependency('rt', native: true, required: false)] : [],
   ]
   foreach name : system_lib_names.get(build_os, [])
     system_native_deps += cpp_native.find_library(name, native: true)
   endforeach
+  if build_os == 'linux' and not cpp_native.has_function('clock_gettime')
+    system_native_deps += cpp_native.find_library('rt')
+  endif
   zlib_native_dep = dependency('zlib', native: true)
 endif