libbpg 0.9 (new formula)

Closes Homebrew/homebrew#34722.

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

Formula/libbpg.rb

@@ -0,0 +1,30 @@
+require "formula"
+
+class Libbpg < Formula
+  homepage "http://bellard.org/bpg/"
+  url "http://bellard.org/bpg/libbpg-0.9.tar.gz"
+  sha1 "d40209384adf517c773a7a28cec0d4759051bf2c"
+
+  depends_on "libpng"
+  depends_on "jpeg"
+
+  def install
+    # Following changes are necessary for compilation on OS X. These have been
+    # reported to the author and can be removed once incorporated upstream.
+    inreplace "libavutil/mem.c" do |s|
+      s.gsub! "#include <malloc.h>", "#include <malloc/malloc.h>"
+    end
+
+    inreplace "Makefile" do |s|
+      s.gsub! "--gc-sections", "-dead_strip"
+      s.gsub! "LIBS:=-lrt -lm -lpthread", "LIBS:=-lm -lpthread"
+    end
+
+    bin.mkpath
+    system "make", "install", "prefix=#{prefix}"
+  end
+
+  test do
+    system "#{bin}/bpgenc", "#{HOMEBREW_PREFIX}/Library/Homebrew/test/fixtures/test.png"
+  end
+end