diff --git a/lib/mkmf.rb b/lib/mkmf.rb
index 04b5f26a5e..c9eae06b23 100644
--- a/lib/mkmf.rb
+++ b/lib/mkmf.rb
@@ -770,6 +770,10 @@ def try_constant(const, headers = nil, opt = "", &b)
   # [+headers+] a String or an Array of strings which contains names of header
   #             files.
   def try_func(func, libs, headers = nil, opt = "", &b)
+    _try_func(:try_link, func, libs, headers, opt, &b)
+  end
+
+  private def _try_func(try_method, func, libs, headers = nil, opt = "", &b)
     headers = cpp_include(headers)
     case func
     when /^&/
@@ -792,14 +796,14 @@ def try_func(func, libs, headers = nil, opt = "", &b)
     else
       opt = libs
     end
-    decltype && try_link(<<"SRC", opt, &b) or
+    decltype && send(try_method, <<"SRC", opt, &b) or
 #{headers}
 /*top*/
 extern int t(void);
 #{MAIN_DOES_NOTHING 't'}
 int t(void) { #{decltype["volatile p"]}; p = (#{decltype[]})#{func}; return !p; }
 SRC
-    call && try_link(<<"SRC", opt, &b)
+    try_method == :try_link && call && try_link(<<"SRC", opt, &b)
 #{headers}
 /*top*/
 extern int t(void);
@@ -1089,7 +1093,12 @@ def find_library(lib, func, *paths, &b)
   #
   def have_func(func, headers = nil, opt = "", &b)
     checking_for checking_message(func.funcall_style, headers, opt) do
-      if try_func(func, $libs, headers, opt, &b)
+      try_method = if RbConfig::CONFIG["LIBRUBYARG"].include?('-lruby')
+        :try_link
+      else
+        :try_compile
+      end
+      if _try_func(try_method, func, $libs, headers, opt, &b)
         $defs << "-DHAVE_#{func.sans_arguments.tr_cpp}"
         true
       else
diff --git a/tool/mkconfig.rb b/tool/mkconfig.rb
index 6db60724e9..297fd690fa 100755
--- a/tool/mkconfig.rb
+++ b/tool/mkconfig.rb
@@ -30,6 +30,7 @@
 install_name = nil
 so_name = nil
 platform = nil
+disable_install_static_library = nil
 File.foreach "config.status" do |line|
   next if /^#/ =~ line
   name = nil
@@ -110,6 +111,9 @@
     eq = win32 && vars[name] ? '<< "\n"' : '='
     vars[name] = val
     if name == "configure_args"
+      if val.include?('--disable-install-static-library')
+        disable_install_static_library = true
+      end
       val.gsub!(/--with-out-ext/, "--without-ext")
     end
     val = val.gsub(/\$(?:\$|\{?(\w+)\}?)/) {$1 ? "$(#{$1})" : $&}.dump
@@ -126,6 +130,10 @@
       end
     when /^includedir$/
       val = '"$(SDKROOT)"'+val if /darwin/ =~ arch
+    when /^LIBRUBYARG_STATIC$/
+      if disable_install_static_library
+        val.sub!('-l$(RUBY_SO_NAME)-static ', '')
+      end
     end
     v = "  CONFIG[\"#{name}\"] #{eq} #{val}\n"
     if fast[name]