add Rscons::BuildTarget

Return a BuildTarget object from Environment#method_missing when a build target is registered.

spec/build_tests_spec.rb

@@ -432,21 +432,20 @@ EOF
   it 'rebuilds when user-specified dependencies change' do
     test_dir('simple')
     env = Rscons::Environment.new do |env|
-      env.Program('simple.exe', Dir['*.c'])
+      env.Program('simple.exe', Dir['*.c']).depends("file.ld")
       File.open("file.ld", "w") do |fh|
         fh.puts("foo")
       end
-      env.depends('simple.exe', 'file.ld')
     end
     lines.should == ["CC simple.o", "LD simple.exe"]
     File.exists?('simple.o').should be_true
     `./simple.exe`.should == "This is a simple C program\n"
     e2 = Rscons::Environment.new do |env|
-      env.Program('simple.exe', Dir['*.c'])
+      program = env.Program('simple.exe', Dir['*.c'])
+      env.depends(program, "file.ld")
       File.open("file.ld", "w") do |fh|
         fh.puts("bar")
       end
-      env.depends('simple.exe', 'file.ld')
     end
     lines.should == ["LD simple.exe"]
     e3 = Rscons::Environment.new do |env|

spec/rscons/builders/program_spec.rb

@@ -5,13 +5,13 @@ module Rscons
       subject {Program.new}
 
       it "supports overriding CC construction variable" do
-        subject.should_receive(:standard_build).with("LD prog#{env["PROGSUFFIX"]}", "prog#{env["PROGSUFFIX"]}", ["sp-c++", "-o", "prog#{env["PROGSUFFIX"]}", "prog.o"], ["prog.o"], env, :cache)
+        subject.should_receive(:standard_build).with("LD prog", "prog", ["sp-c++", "-o", "prog", "prog.o"], ["prog.o"], env, :cache)
         subject.run("prog", ["prog.o"], :cache, env, "CC" => "sp-c++")
       end
 
       it "supports overriding LDCMD construction variable" do
         subject.should_receive(:standard_build).with("LD prog.exe", "prog.exe", ["special", "LD!", "prog.o"], ["prog.o"], env, :cache)
-        subject.run("prog", ["prog.o"], :cache, env, "LDCMD" => ["special", "LD!", "${_SOURCES}"])
+        subject.run("prog.exe", ["prog.o"], :cache, env, "LDCMD" => ["special", "LD!", "${_SOURCES}"])
       end
     end
   end

spec/rscons/environment_spec.rb

@@ -295,11 +295,11 @@ module Rscons
       it "records the target when the target method is a known builder" do
         env = Environment.new
         env.instance_variable_get(:@targets).should == {}
-        env.Program("target", ["src1", "src2"], var: "val")
-        target = env.instance_variable_get(:@targets)["target"]
+        env.Object("target.o", ["src1.c", "src2.c"], var: "val")
+        target = env.instance_variable_get(:@targets)["target.o"]
         target.should_not be_nil
         target[:builder].is_a?(Builder).should be_true
-        target[:sources].should == ["src1", "src2"]
+        target[:sources].should == ["src1.c", "src2.c"]
         target[:vars].should == {var: "val"}
         target[:args].should == []
       end