task/lib.rake in rucy-0.1.0 vs task/lib.rake in rucy-0.1.1

@@ -1,21 +1,28 @@
 # -*- mode: ruby; coding: utf-8 -*-
 
 
+require 'rake/loaders/makefile'
+
+
 namespace :lib do
 
   name    = NAME
   outname = "lib#{name}.a"
   out     = File.join LIBDIR, outname
 
   erbs    = convertions glob("**/*.erb"), {".erb" => ""}
   headers = glob("include/**/*.h") | erbs.values.grep(/\.h$/)
   srcs    = glob("src/**/*.cpp")   | erbs.values.grep(/\.cpp$/)
 
-  objs = convertions srcs, {".cpp" => ".o"}
-  tmps = objs.values | erbs.values
+  depend = 'depend.mf'
+  objs   = convertions srcs, {".cpp" => ".o"}
+  tmps   = (objs.values | erbs.values) + [depend]
 
+  cflags  = CFLAGS.dup
+  cflags << INCDIRS.map{|s| " -I#{s}"}.join
+
   task :build => out
 
   task :compile => objs.values
 
   task :erb => erbs.values
@@ -26,14 +33,22 @@
 
   file out => objs.values do
     sh %( #{AR} #{ARFLAGS} #{out} #{objs.values.join " "} )
   end
 
-  objs.each do |(src, obj)|
-    incdirs = INCDIRS.map{|s| " -I#{s}"}.join
+  file depend => 'lib:erb' do
+    sh %( #{CC} -M #{cflags} #{srcs.join ' '} > #{depend} )
+    input = open(depend) {|f| f.read}
+    open(depend, 'w') do |output|
+      output << input.gsub(/\w+\.o/, SRCDIR + '/\0')
+    end
+  end
 
-    file obj => [src] + erbs.values do
-      sh %( #{CC} -c #{CFLAGS} #{incdirs} -o #{obj} #{src} )
+  import depend if File.exist? depend
+
+  objs.each do |(src, obj)|
+    file obj => [depend, src] + erbs.values do
+      sh %( #{CC} -c #{cflags} -o #{obj} #{src} )
     end
   end
 
   erbs.each do |(erb, out)|
     file out => [erb] + RBS do