diff --git a/crew b/crew
index 304e809b7..e40b28515 100755
--- a/crew
+++ b/crew
@@ -370,6 +370,8 @@ 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.preinstall
+    @pkg.patch
     @pkg.build
     @pkg.in_build = false
     system "rm -rf #{CREW_DEST_DIR}/*" #wipe crew destdir
diff --git a/lib/package.rb b/lib/package.rb
index b43e33c08..62ec71163 100644
--- a/lib/package.rb
+++ b/lib/package.rb
@@ -69,6 +69,16 @@ class Package
     @is_fake
   end
 
+  # Function to perform pre-install operations prior to build from source.
+  def self.preinstall
+
+  end
+
+  # Function to perform patch operations prior to build from source.
+  def self.patch
+
+  end
+
   # Function to perform build from source.
   def self.build