Change to add `-j` flag at only compile-time

crew

@@ -218,7 +218,9 @@ end
 def build_and_preconfigure (target_dir)
   Dir.chdir target_dir do
     puts "Building from source, this may take a while..."
+    @pkg.in_build = true
     @pkg.build
+    @pkg.in_build = false
     system "rm -rf", CREW_DEST_DIR + "/*" #wipe crew destdir
     puts "Preconfiguring package..."
     @pkg.install

lib/package.rb

@@ -5,7 +5,7 @@ class Package
   
   class << self
     attr_reader :dependencies, :is_fake
-    attr_accessor :name
+    attr_accessor :name, :in_build
   end
   def self.depends_on (dependency = nil)
     @dependencies = [] unless @dependencies
@@ -28,13 +28,15 @@ class Package
   end
 
   def self.system(*args)
-    # add "-j#{CREW_NPROC}" argument to "make"
-    if args[0] == "make"
-      # modify ["make", "args", ...] into ["make", "-j#{CREW_NPROC}", "args", ...]
-      args.insert(1, "-j#{CREW_NPROC}")
-    elsif args.length == 1
-      # modify ["make args..."] into ["make -j#{CREW_NPROC} args..."]
-      args[0].gsub!(/^make /, "make -j#{CREW_NPROC} ")
+    # add "-j#{CREW_NPROC}" argument to "make" at only compile-time
+    if @in_build == true
+      if args[0] == "make"
+        # modify ["make", "args", ...] into ["make", "-j#{CREW_NPROC}", "args", ...]
+        args.insert(1, "-j#{CREW_NPROC}")
+      elsif args.length == 1
+        # modify ["make args..."] into ["make -j#{CREW_NPROC} args..."]
+        args[0].gsub!(/^make /, "make -j#{CREW_NPROC} ")
+      end
     end
     Kernel.system(*args)
     exitstatus = $?.exitstatus