[master] af36bc5 make the copyright section optional again

[Nils Goroll]

commit af36bc5d9694a410342f9fd8ca3424fdd9a7bd69
Author: Nils Goroll <nils.goroll at uplex.de>
Date:   Sun Jun 12 21:10:38 2016 +0200

    make the copyright section optional again
    
    VDD discussion result:
    - we want to make vcc files rst so that they can be read by rst
      parsers (github) right from the repo
    - vcc prototypes should be integrated into the rst
    - scn wants to look after this
    - we should make the copyright mandatory
    - for the time being, we tolerate a missing copyright to make
      existing vmod builds work again, the move to rst will change
      the interface anyway
    
    Closes #1978

diff --git a/lib/libvcc/vmodtool.py b/lib/libvcc/vmodtool.py
index 176f618..6275e13 100755
--- a/lib/libvcc/vmodtool.py
+++ b/lib/libvcc/vmodtool.py
@@ -648,6 +648,7 @@ class vcc(object):
 		self.pfx = outputprefix
 		self.contents = []
 		self.commit_files = []
+		self.copyright = None
 
 	def commit(self):
 		for i in self.commit_files:
@@ -658,11 +659,15 @@ class vcc(object):
 		a = a.split("\n$")
 		for i in range(len(a)):
 			b = a[i].split("\n", 1)
+			c = b[0].split(None, 1)
+
 			if i == 0:
-				self.copyright = a[0]
+				if c[0] == "$Module":
+					s_module(c, b[1:], self)
+				else:
+					self.copyright = a[0]
 				continue
-			c = b[0].split(None, 1)
-			if i == 1:
+			if i == 1 and self.copyright != None:
 				if c[0] != "Module":
 					err("$Module must be first stanze")
 			if c[0] == "Module":
@@ -702,7 +707,8 @@ class vcc(object):
 		for i in self.contents:
 			i.rstfile(fo, man)
 
-		self.rst_copyright(fo)
+		if self.copyright != None:
+			self.rst_copyright(fo)
 
 		fo.close()