Allow to override configure command.

slapos/recipe/build.py

@@ -362,8 +362,9 @@ class Cmmi(Script):
 url = self.download(self.options['url'], self.options.get('md5sum'))
 extract_dir = self.extract(url)
 workdir = guessworkdir(extract_dir)
-configure_command = ["./configure", "--prefix=%(location)s"]
-configure_command.extend(%(configure-options)r.split())
+configure_command = self.options.get('configure-command')
+if configure_command is None:
+  configure_command = ["./configure", "--prefix=%(location)s"] + [%(configure-options)r.split()]
 self.logger.info('Configuring with: %%s' %% configure_command)
 self.applyPatchList(self.options.get('patches'), self.options.get('patch-options'), self.options.get('patch-binary'), workdir)
 call(configure_command, cwd=workdir, env=env)