libbpg 0.9.6

Closes Homebrew/homebrew#46383.
Closes Homebrew/homebrew#46464.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Formula/libbpg.rb

@@ -1,8 +1,8 @@
 class Libbpg < Formula
   desc "Image format meant to improve on JPEG quality and file size"
   homepage "http://bellard.org/bpg/"
-  url "http://bellard.org/bpg/libbpg-0.9.5.tar.gz"
-  sha256 "30de1d0099920e24b7c9aae4d4e6b62f446823f0a1d52eb195dfc25c662ee203"
+  url "http://bellard.org/bpg/libbpg-0.9.6.tar.gz"
+  sha256 "2800777d88a77fd64a4a9036b131f021a5bda8304e1dbe7996dd466567fb484e"
 
   bottle do
     cellar :any
@@ -15,6 +15,8 @@ class Libbpg < Formula
   option "with-x265", "Enable x265 encoder"
   option "without-jctvc", "Disable built-in JCTVC encoder"
 
+  depends_on "cmake" => :build
+  depends_on "yasm" => :build
   depends_on "libpng"
   depends_on "jpeg"
   depends_on "x265" => :optional