libffi: 3.4.2 -> 3.4.3

Mostly bug fixes and new architectures support.

While at it dropped upstream libffi-powerpc64.patch.

Changes: https://github.com/libffi/libffi/releases/tag/v3.4.3

pkgs/development/libraries/libffi/default.nix

@@ -9,11 +9,11 @@
 
 stdenv.mkDerivation rec {
   pname = "libffi";
-  version = "3.4.2";
+  version = "3.4.3";
 
   src = fetchurl {
     url = "https://github.com/libffi/libffi/releases/download/v${version}/${pname}-${version}.tar.gz";
-    sha256 = "081nx7wpzds168jbr59m34n6s3lyiq6r8zggvqxvlslsc4hvf3sl";
+    sha256 = "sha256-RBbdkrauj8tbEEIecRxNPLMSA9d1Iad9hdAQIxHmw7g=";
   };
 
   # Note: this package is used for bootstrapping fetchurl, and thus
@@ -21,7 +21,6 @@ stdenv.mkDerivation rec {
   # cgit) that are needed here should be included directly in Nixpkgs as
   # files.
   patches = [
-    ./libffi-powerpc64.patch
   ];
 
   strictDeps = true;

pkgs/development/libraries/libffi/libffi-powerpc64.patch

@@ -1,23 +0,0 @@
-https://github.com/libffi/libffi/issues/668
---- a/src/powerpc/linux64.S
-+++ b/src/powerpc/linux64.S
-@@ -29,6 +29,8 @@
- #include <fficonfig.h>
- #include <ffi.h>
- 
-+	.machine altivec
-+
- #ifdef POWERPC64
- 	.hidden	ffi_call_LINUX64
- 	.globl	ffi_call_LINUX64
---- a/src/powerpc/linux64_closure.S
-+++ b/src/powerpc/linux64_closure.S
-@@ -30,6 +30,8 @@
- 
- 	.file	"linux64_closure.S"
- 
-+	.machine altivec
-+
- #ifdef POWERPC64
- 	FFI_HIDDEN (ffi_closure_LINUX64)
- 	.globl  ffi_closure_LINUX64