1 files changed, 6 insertions, 7 deletions
diff --git a/ext/dl/extconf.rb b/ext/dl/extconf.rb
index 8ba6c53d0d..c0b8ffd0a1 100644
--- a/ext/dl/extconf.rb
+++ b/ext/dl/extconf.rb
@@ -4,10 +4,14 @@ if( RbConfig::CONFIG['CC'] =~ /gcc/ )
   $CFLAGS << " -fno-defer-pop -fno-omit-frame-pointer"
 end
 
+CALLBACKS = (0..8).map{|i| "callback-#{i}"}
+CALLBACK_SRCS = CALLBACKS.map{|basename| "#{basename}.c"}
+CALLBACK_OBJS = CALLBACKS.map{|basename| "#{basename}.o"}
+
 $INSTALLFILES = [
   ["dl.h", "$(HDRDIR)"],
 ]
-$distcleanfiles << "callback.h"
+$distcleanfiles += [ "callback.h", *CALLBACK_SRCS ]
 
 
 check = true
@@ -25,12 +29,7 @@ else
   check = false
 end
 
-$objs = %w[
-  cfunc.o dl.o cptr.o handle.o
-  callback-0.o callback-1.o callback-2.o callback-3.o
-  callback-4.o callback-5.o callback-6.o callback-7.o
-  callback-8.o
-]
+$objs = %w[ cfunc.o dl.o cptr.o handle.o ] + CALLBACK_OBJS
 
 if check
   $defs << %[-DRUBY_VERSION=\\"#{RUBY_VERSION}\\"]