Moved dll-specific make rules to a separate Makedll.rules file.

configure

diff --git a/configure b/configure
index f93bf2d..ab5252c 100755
--- a/configure
+++ b/configure
@@ -6067,6 +6067,9 @@
 MAKE_RULES=Make.rules
 
 
+MAKE_DLL_RULES=dlls/Makedll.rules
+
+
 trap '' 1 2 15
 cat > confcache <<\EOF
 # This file is a shell script that caches the results of configure
@@ -6174,6 +6177,7 @@
 console/Makefile
 controls/Makefile
 debugger/Makefile
+dlls/Makedll.rules
 dlls/Makefile
 dlls/advapi32/Makefile
 dlls/avifil32/Makefile
@@ -6341,6 +6345,8 @@
 s%@GCC_NO_BUILTIN@%$GCC_NO_BUILTIN%g
 /@MAKE_RULES@/r $MAKE_RULES
 s%@MAKE_RULES@%%g
+/@MAKE_DLL_RULES@/r $MAKE_DLL_RULES
+s%@MAKE_DLL_RULES@%%g
 
 CEOF
 EOF
@@ -6387,6 +6393,7 @@
 console/Makefile
 controls/Makefile
 debugger/Makefile
+dlls/Makedll.rules
 dlls/Makefile
 dlls/advapi32/Makefile
 dlls/avifil32/Makefile