diff --git a/alpine.changes b/alpine.changes
index c1015be..4801c2d 100644
--- a/alpine.changes
+++ b/alpine.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sun Jun  7 10:48:05 UTC 2020 - Jan Engelhardt <jengelh@inai.de>
+
+- Add extern.diff.
+- Mark license texts as %license.
+
 -------------------------------------------------------------------
 Thu May  7 20:32:03 UTC 2020 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/alpine.spec b/alpine.spec
index 15c76c4..456e067 100644
--- a/alpine.spec
+++ b/alpine.spec
@@ -41,6 +41,7 @@ Patch10:        pico-fix-spurious-undef-warnings.diff
 Patch20:        pine-expression-warnings.diff
 Patch60:        signal-and-panic-improvements.diff
 Patch61:        return-values.diff
+Patch62:        extern.diff
 #
 # Eduardo Chappa's patches.
 # http://patches.freeiz.com/alpine/
@@ -144,6 +145,7 @@ fi
 %patch20 -p1
 %patch60 -p1
 %patch61 -p1
+%patch62 -p1
 %endif # End of "if !{build_vanilla}"
 
 %build
@@ -274,7 +276,8 @@ fi
 %doc %{_mandir}/man1/alpine.*
 %doc %{_mandir}/man1/rpdump.*
 %doc %{_mandir}/man1/rpload.*
-%doc README NOTICE LICENSE
+%doc README
+%license LICENSE NOTICE
 %doc doc/mailcap.unx doc/mime.types doc/tech-notes/tech-notes.txt doc/tech-notes/*.html
 %{_bindir}/*pine
 %{_bindir}/alpinef
diff --git a/extern.diff b/extern.diff
new file mode 100644
index 0000000..dbfb7a6
--- /dev/null
+++ b/extern.diff
@@ -0,0 +1,22 @@
+From: Jan Engelhardt <jengelh@inai.de>
+Date: 2020-06-07 12:47:25.957623338 +0200
+
+Can't define a symbol twice. (smime.c being the other place.)
+
+---
+ pith/smkeys.c |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+Index: alpine-2.22/pith/smkeys.c
+===================================================================
+--- alpine-2.22.orig/pith/smkeys.c
++++ alpine-2.22/pith/smkeys.c
+@@ -50,7 +50,7 @@ static int       mem_add_extra_cacerts(c
+ int		 compare_certs_by_name(const void *data1, const void *data2);
+ int		 password_policy_check(char *);
+ 
+-int  (*pith_smime_enter_password)(char *, char *, size_t);
++extern int (*pith_smime_enter_password)(char *, char *, size_t);
+ 
+ /* test if password passes a predetermined policy.
+  * return value: 0 - does not pass; 1 - it passes