ptlib: use fetchpatch

pkgs/development/libraries/ptlib/default.nix

@@ -17,8 +17,12 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   patches = [
-    ./bison.patch
+    (fetchpatch { url = http://sources.debian.net/data/main/p/ptlib/2.10.11~dfsg-2.1/debian/patches/bison-fix;
-    ./sslv3.patch
+      sha256 = "0vzv9kyn9s628z8wy2gva380gi1rmhxilwlg5pikl5a0wn8p46nw";
+    })
+    (fetchpatch { url = http://sources.debian.net/data/main/p/ptlib/2.10.11~dfsg-2.1/debian/patches/no-sslv3;
+      sha256 = "172s1dnnrl54p9sf1nl7s475sm78rpw3p8jxi0pdx6izzl8hcdr0";
+    })
     (fetchpatch { url = http://sources.debian.net/data/main/p/ptlib/2.10.11~dfsg-2.1/debian/patches/gcc-5_support;
       sha256 = "0pf2yj0150r4cnc6nv65mclrm3dillqh1xjk7m6gsjnk9b96i5d4";
     })

pkgs/development/libraries/ptlib/sslv3.patch

@@ -1,16 +0,0 @@
---- ptlib-2.10.11/src/ptclib/pssl.cxx	2016-02-07 09:54:36.326325637 +0000
-+++ ptlib-2.10.11/src/ptclib/pssl.cxx	2016-02-07 09:55:55.677870908 +0000
-@@ -805,11 +805,13 @@
-   SSL_METHOD * meth;
- 
-   switch (method) {
-+#if !defined(OPENSSL_NO_SSL3)
-     case SSLv3:
-       meth = SSLv3_method();
-       break;
-+#endif
-     case TLSv1:
-       meth = TLSv1_method(); 
-       break;
-     case SSLv23:
-     default: