Move preinst_bsdflags and postinst_bsdflags from shell to Python.

pym/_emerge/EbuildPhase.py

Index: pym/_emerge/EbuildPhase.py
diff --git a/pym/_emerge/EbuildPhase.py b/pym/_emerge/EbuildPhase.py
index c9d17474e0ecd5e1c1108ee2e07c38d01e7cb41a..07fb69ca7e03370a9ea5a1bc70e951f17c4d0c4a 100644
--- a/pym/_emerge/EbuildPhase.py
+++ b/pym/_emerge/EbuildPhase.py
@@ -17,7 +17,8 @@ portage.proxy.lazyimport.lazyimport(globals(),
 	'portage.package.ebuild.doebuild:_check_build_log,' + \
 		'_post_phase_cmds,_post_phase_userpriv_perms,' + \
 		'_post_src_install_chost_fix,' + \
-		'_post_src_install_uid_fix'
+		'_post_src_install_uid_fix,_postinst_bsdflags,' + \
+		'_preinst_bsdflags'
 )
 from portage import os
 from portage import StringIO
@@ -178,6 +179,10 @@ class EbuildPhase(CompositeTask):
 				encoding=_encodings['content'], errors='replace')
 			if msg:
 				self.scheduler.output(msg, log_path=logfile)
+		elif self.phase == "preinst":
+			_preinst_bsdflags(settings)
+		elif self.phase == "postinst":
+			_postinst_bsdflags(settings)
 
 		post_phase_cmds = _post_phase_cmds.get(self.phase)
 		if post_phase_cmds is not None: