Rakefile in ruby-vpi-8.2.0 vs Rakefile in ruby-vpi-9.0.0

@@ -1,5 +1,8 @@
+# = Environment variables
+# CFLAGS:: Arguments to the compiler.
+# LDFLAGS:: Arguments to the linker.
 =begin
   Copyright 2006 Suraj N. Kurapati
 
   This file is part of Ruby-VPI.
 
@@ -16,26 +19,27 @@
   You should have received a copy of the GNU General Public License
   along with Ruby-VPI; if not, write to the Free Software Foundation,
   Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 =end
 
+CFLAGS, LDFLAGS = ENV['CFLAGS'], ENV['LDFLAGS']
+
 require 'rake/clean'
 require 'rake/rdoctask'
 require 'rake/gempackagetask'
 
 require 'tempfile'
 require 'rbconfig'
 
-$:.unshift File.join(File.dirname(__FILE__), 'lib')
+PROJECT_LIBS = File.join(File.dirname(__FILE__), 'lib')
+
+$:.unshift PROJECT_LIBS
+require 'ruby-vpi'
 require 'ruby-vpi/rake'
 
 
-PROJECT_ID = 'ruby-vpi'
-PROJECT_NAME = 'Ruby-VPI'
-PROJECT_URL = "http://#{PROJECT_ID}.rubyforge.org"
-PROJECT_SUMMARY = "Ruby interface to Verilog VPI."
-PROJECT_DETAIL = "#{PROJECT_NAME} is a #{PROJECT_SUMMARY}. It lets you create complex Verilog test benches easily and wholly in Ruby."
+include RubyVpi::Config
 PROJECT_SSH_URL = "[e-mail]:/var/www/gforge-projects/#{PROJECT_ID}"
 
 File.read('HISTORY') =~ /Version\s+([\d\.]+)\s*\((.*?)\)/
 PROJECT_VERSION = $1
 PROJECT_BIRTHDAY = $2
@@ -54,17 +58,22 @@
 
 
 
 task :default => :build
 
-task :clobber do |t|
-  files = FileList['**/Rakefile'].exclude('_darcs')
-  files.shift # avoid infinite loop on _this_ file
+[:clean, :clobber].each do |t|
+  task t do
+    files = FileList['**/Rakefile'].exclude('_darcs')
+    files.shift # avoid infinite loop on _this_ file
 
-  files.each do |f|
-    cd File.dirname(f) do
-      sh 'rake', t.name
+    # allows propogation to lower levels when gem not installed
+    ENV['RUBYLIB'] = PROJECT_LIBS
+
+    files.each do |f|
+      cd File.dirname(f) do
+        sh 'rake', t.to_s
+      end
     end
   end
 end
 
 
@@ -72,50 +81,37 @@
 ## extension
 
 desc "Builds object files for all simulators."
 task :build
 
-DEFAULT_SHARED_OBJ = "#{PROJECT_ID}.so"
-DEFAULT_NORMAL_OBJ = "#{PROJECT_ID}.o"
-
 directory 'obj'
 CLOBBER.include 'obj'
 
-{
-  :cver => ['-DPRAGMATIC_CVER', '-export-dynamic'],
-  :ivl => ['-DICARUS_VERILOG'],
-  :vcs => ['-DSYNOPSYS_VCS'],
-  :vsim => ['-DMENTOR_MODELSIM'],
-}.each_pair do |target, (cflags, ldflags)|
 
-  # object files that are needed to be built
-  objFiles = [DEFAULT_NORMAL_OBJ, DEFAULT_SHARED_OBJ].inject({}) do |memo, src|
-    dstName = src.sub(/#{File.extname src}$/, ".#{target}\\&")
-    dst = File.expand_path(File.join('obj', dstName))
+SIMULATORS.each do |sim|
+  taskName = "build_#{sim.id}"
 
-    memo[src] = dst
-    memo
-  end
+  desc "Builds object files for #{sim.name} simulator."
+  task taskName => ['obj', 'ext'] do
+    src = "#{PROJECT_ID}.so"
+    dst = "#{PROJECT_ID}.#{sim.id}.so"
 
-  # task to build the object files
-  targetTask = "build_#{target}"
+    dst = File.expand_path(File.join('obj', dst))
 
-  desc "Builds object files for #{target} simulator."
-  task targetTask => ['obj', 'ext'] do |t|
-    unless objFiles.values.reject {|f| File.exist? f}.empty?
-      cd t.prerequisites[1] do
-        ENV['CFLAGS'], ENV['LDFLAGS'] = cflags, ldflags
-        sh %w(rake clean default)
+    unless File.exist? dst
+      cd 'ext' do
+        ENV['CFLAGS'] = "#{CFLAGS} #{sim.compiler_args}"
+        ENV['LDFLAGS'] = "#{LDFLAGS} #{sim.linker_args}"
 
-        objFiles.each_pair do |src, dst|
-          mv src, dst
-        end
+        sh 'rake'
+        mv src, dst
+        sh 'rake clean'
       end
     end
   end
 
-  task :build => targetTask
+  task :build => taskName
 end
 
 
 
 ## documentation
@@ -190,11 +186,11 @@
 task :dist_info => distDocs
 
 
 desc "Prepare for distribution."
 task :dist => ['ext', :doc, :dist_info] do |t|
-  cd t.prerequisites[0] do
+  cd 'ext' do
     sh 'rake swig'
   end
 end
 
 
@@ -272,10 +268,10 @@
 ## testing
 
 desc "Ensure that examples work with $SIMULATOR"
 task :test => :build do
   # ensures that current sources are tested instead of the installed gem
-  ENV['RUBYLIB'] = File.join(File.dirname(__FILE__), 'lib')
+  ENV['RUBYLIB'] = PROJECT_LIBS
 
   FileList['samp/*/'].each do |s|
     cd s do
       sh 'rake', ENV['SIMULATOR'] || 'cver'
     end