ext/libgecode3/extconf.rb in dep-selector-libgecode-1.0.0.alpha.1 vs ext/libgecode3/extconf.rb in dep-selector-libgecode-1.0.0.alpha.2

@@ -1,57 +1,74 @@
+exit(0) if ENV["USE_SYSTEM_GECODE"]
+
 require 'pp'
 
 module GecodeBuild
   class BuildError < StandardError; end
 
   GECODE_VENDOR_DIR = File.expand_path("../vendor/gecode-3.7.3", __FILE__).freeze
 
   PREFIX = File.expand_path("../../../lib/dep-selector-libgecode/vendored-gecode", __FILE__).freeze
 
-  LOG_FILE_PATH = File.expand_path("../gecode_build.log", __FILE__)
+  def self.windows?
+   !!(RUBY_PLATFORM =~ /mswin|mingw|windows/)
+  end
 
   def self.gecode_vendor_dir
     GECODE_VENDOR_DIR
   end
 
+  def self.configure
+    File.join(GECODE_VENDOR_DIR, "configure")
+  end
+
   def self.prefix
     PREFIX
   end
 
-  # TODO: this needs to detect windows and add `--with-host-os=windows`
   def self.configure_cmd
-    %W[
-      ./configure
+    args = %W[
+      sh
+      #{configure}
       --prefix=#{prefix}
       --disable-doc-dot
       --disable-doc-search
       --disable-doc-tagfile
       --disable-doc-chm
       --disable-doc-docset
       --disable-qt
       --disable-examples
       --disable-flatzinc
     ]
+    args << "--with-host-os=windows" if windows?
+    args
   end
 
+  def self.setup_env
+    if windows?
+      ENV['CC'] = 'gcc'
+      ENV['CXX'] = 'g++'
+    end
+  end
+
   def self.system(*args)
     print("-> #{args.join(' ')}\n")
-    super(*args, [:out, :err] => [LOG_FILE_PATH, "w"])
+    super(*args)
   end
 
   def self.run_build_commands
+    setup_env
     system(*configure_cmd) &&
       system("make", "clean") &&
       system("make", "-j", "5") &&
       system("make", "install")
   end
 
   def self.run
     Dir.chdir(gecode_vendor_dir) do
-      run_build_commands or raise BuildError, "Failed to build gecode library. See log for details: #{LOG_FILE_PATH}"
+      run_build_commands or raise BuildError, "Failed to build gecode library."
     end
   end
 
 end
 
 GecodeBuild.run
-