what do you mean by patch file? Do you mean a diff output of the old and new versions of all ruel files related to the package?

[prompt.at.MyBSP]$ diff rules/sqlite3.make rules.save/sqlite3.make
19,20c19,20
< SQLITE3_VERSION       := autoconf-3080002
< SQLITE3_MD5   := 6d6cc639a4da04fbbdda7b1a1a01b386
---
> SQLITE3_VERSION       := autoconf-3071700
> SQLITE3_MD5   := 18c285053e9562b848209cb0ee16d4ab
23c23
< SQLITE3_URL   := http://sqlite.org/2013/$(SQLITE3).$(SQLITE3_SUFFIX)
---
> SQLITE3_URL   := http://www.sqlite.org/2013/$(SQLITE3).$(SQLITE3_SUFFIX)

diff rules/sqlite3.in rules.save/sqlite3.in (no output because they don't differ)

Mit freundlichen Grüßen

Henrik Kraft
z.Zt. Heidolph Instruments GmbH & Co. KG
Walpersdorfer Str. 12
91126 Schwabach
09122 - 99 20 - 58