diff --git a/lib/pkg-config.rb b/lib/pkg-config.rb
index 542d67c..149b1bd 100644
--- a/lib/pkg-config.rb
+++ b/lib/pkg-config.rb
@@ -620,7 +620,6 @@ def collect_libs
     flags = flags.reject do |flag|
       /\A-L\/usr\/lib(?:64|x32)?\z/ =~ flag
     end
-    flags = flags.uniq
     if @msvc_syntax
       flags = flags.collect do |flag|
         if flag.start_with?("-L")
@@ -638,22 +637,12 @@ def collect_libs
   def split_lib_flags(libs_command_line)
     all_flags = {}
     flags = []
-    in_option = false
     libs_command_line.gsub(/-([Ll]) /, "\\1").split.each do |arg|
-      if in_option
-        flags << arg
-        in_option = false
-      else
-        case arg
-        when /-[lL]/
-          next if all_flags.key?(arg)
-          all_flags[arg] = true
-          flags << arg
-          in_option = true
-        else
-          flags << arg
-        end
+      if /\A-[lL]/ =~ arg
+        next if all_flags.key?(arg)
+        all_flags[arg] = true
       end
+      flags << arg
     end
     flags
   end
diff --git a/test/test-pkg-config.rb b/test/test-pkg-config.rb
index 67893b3..d0711f5 100644
--- a/test/test-pkg-config.rb
+++ b/test/test-pkg-config.rb
@@ -46,6 +46,22 @@ def split_lib_flags(libs_command_line)
     @glib.__send__(:split_lib_flags, libs_command_line)
   end
 
+  def test_split_preserves_repeated_multiargument_options
+    assert_equal([
+                   "-framework", "Cocoa",
+                   "-framework", "Carbon",
+                   "-Xlinker", "--as-needed",
+                   "-Xlinker", "--no-as-needed",
+                   "-Wl,--start-group", "-lfoo", "-Wl,--end-group",
+                   "-Wl,--start-group", "-lbar", "-Wl,--end-group",
+                 ],
+                 split_lib_flags("-framework Cocoa -framework Carbon " +
+                                 "-Xlinker --as-needed " +
+                                 "-Xlinker --no-as-needed " +
+                                 "-Wl,--start-group -lfoo -Wl,--end-group " +
+                                 "-Wl,--start-group -lbar -Wl,--end-group"))
+  end
+
   def test_split_libs
     assert_equal([
                    "-L/usr/local/Cellar/gtk+3/3.24.10/lib",