Fix packaging.

Submitted by:	Yuri Ryazantsev <yuri@unix.ru> (slightly modified)

devel/mercurial/Makefile

@@ -16,7 +16,9 @@ COMMENT=	A fast, lightweight source control management system
 USE_GETTEXT=	yes
 USE_PYTHON=	2.3+
 USE_PYDISTUTILS=yes
-PYDISTUTILS_NOEGGINFO=  yes
+PYDISTUTILS_PKGNAME=    ${PORTNAME}
+PYDISTUTILS_PKGVERSION= ${PORTVERSION}
+PYDISTUTILS_EGGINFO=    ${PORTNAME}-${PORTVERSION}-${PYTHON_VERSION:S/thon//}.egg-info
 
 CONTRIB_FILES=	bash_completion \
 		convert-repo \

devel/mercurial/files/patch-unknown-egg

@@ -0,0 +1,51 @@
+diff -r 4d79ed5b9ecd mercurial-1.2.1/setup.py
+--- setup.py	Fri May 15 13:58:32 2009 +0400
++++ setup.py	Fri May 15 14:02:00 2009 +0400
+@@ -97,10 +97,7 @@
+ except ImportError:
+     pass
+ 
+-def getversion():
+-    if not os.path.exists('.hg'):
+-        return None # not in a repository
+-
++if os.path.exists('.hg'):
+     # execute hg out of this directory with a custom environment which
+     # includes the pure Python modules in mercurial/pure
+     pypath = os.environ.get('PYTHONPATH', '')
+@@ -108,6 +105,7 @@
+     os.environ['PYTHONPATH'] = os.pathsep.join(['mercurial', purepath, pypath])
+     os.environ['HGRCPATH'] = '' # do not read any config file
+     cmd = '%s hg id -it' % sys.executable
++    version = None
+ 
+     try:
+         l = os.popen(cmd).read().split()
+@@ -122,16 +120,18 @@
+         version = l[-1] # latest tag or revision number
+         if version.endswith('+'):
+             version += time.strftime('%Y%m%d')
+-        return version
+ 
+-version = getversion()
+-if version:
+-    f = file("mercurial/__version__.py", "w")
+-    f.write('# this file is autogenerated by setup.py\n')
+-    f.write('version = "%s"\n' % version)
+-    f.close()
+-else:
+-    version = "unknown"
++    if version:
++        f = file("mercurial/__version__.py", "w")
++        f.write('# this file is autogenerated by setup.py\n')
++        f.write('version = "%s"\n' % version)
++        f.close()
++
++try:
++    from mercurial import __version__
++    version = __version__.version
++except ImportError:
++    version = 'unknown'
+ 
+ class install_package_data(install_data):
+     def finalize_options(self):