class Jasper < Formula
  desc "Library for manipulating JPEG-2000 images"
  homepage "https://www.ece.uvic.ca/~frodo/jasper/"
  url "http://download.osgeo.org/gdal/jasper-1.900.1.uuid.tar.gz"
  sha256 "0021684d909de1eb2f7f5a4d608af69000ce37773d51d1fb898e03b8d488087d"
  version "1.900.1"

  bottle do
    cellar :any
    revision 1
    sha256 "c70ac7c5c48f01d60d8ef07f8d951cc6ffc4da507bc2218950fed542a2fd5902" => :el_capitan
    sha256 "7a996d9e2a97fd46aceda93413c3e55a4e46be3afae16f4631743cb6ce2602d6" => :yosemite
    sha256 "f3deabb9253d2a32eeb5f4848613e7f18bd3af5e5e44b0c467059f5477b60e31" => :mavericks
    sha256 "b6c2560da91773d9b39a9b77064edeb0a19bf32ada3ae057b38c28025a900975" => :mountain_lion
  end

  option :universal

  depends_on "jpeg"

  fails_with :llvm do
    build 2326
    cause "Undefined symbols when linking"
  end

  # The following patch fixes a bug (still in upstream as of jasper 1.900.1)
  # where an assertion fails when Jasper is fed certain JPEG-2000 files with
  # an alpha channel. See:
  # http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=469786
  patch :DATA

  def install
    ENV.universal_binary if build.universal?
    system "./configure", "--disable-debug",
                          "--disable-dependency-tracking",
                          "--enable-shared",
                          "--prefix=#{prefix}",
                          "--mandir=#{man}"
    system "make", "install"
  end
end

__END__
diff --git a/src/libjasper/jpc/jpc_dec.c b/src/libjasper/jpc/jpc_dec.c
index fa72a0e..1f4845f 100644
--- a/src/libjasper/jpc/jpc_dec.c
+++ b/src/libjasper/jpc/jpc_dec.c
@@ -1069,12 +1069,18 @@ static int jpc_dec_tiledecode(jpc_dec_t *dec, jpc_dec_tile_t *tile)
	/* Apply an inverse intercomponent transform if necessary. */
	switch (tile->cp->mctid) {
	case JPC_MCT_RCT:
-		assert(dec->numcomps == 3);
+		if (dec->numcomps != 3 && dec->numcomps != 4) {
+			jas_eprintf("bad number of components (%d)\n", dec->numcomps);
+			return -1;
+		}
		jpc_irct(tile->tcomps[0].data, tile->tcomps[1].data,
		  tile->tcomps[2].data);
		break;
	case JPC_MCT_ICT:
-		assert(dec->numcomps == 3);
+		if (dec->numcomps != 3 && dec->numcomps != 4) {
+			jas_eprintf("bad number of components (%d)\n", dec->numcomps);
+			return -1;
+		}
		jpc_iict(tile->tcomps[0].data, tile->tcomps[1].data,
		  tile->tcomps[2].data);
		break;