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class Libpng < Formula
homepage "http://www.libpng.org/pub/png/libpng.html"
url "https://downloads.sf.net/project/libpng/libpng16/1.6.16/libpng-1.6.16.tar.xz"
sha1 "31855a8438ae795d249574b0da15b34eb0922e13"
bottle do
cellar :any
sha1 "f7b47fcf9d4111075745b04b6fbdb63062982bca" => :yosemite
sha1 "b67793bae0a5d109be5ad19d27bbeb4509f4ecee" => :mavericks
sha1 "a2fb283d2f96161ecee5d504adb92b26376b7d9e" => :mountain_lion
end
keg_only :provided_pre_mountain_lion
option :universal
def install
ENV.universal_binary if build.universal?
system "./configure", "--disable-dependency-tracking",
"--disable-silent-rules",
"--prefix=#{prefix}"
system "make"
system "make", "test"
system "make", "install"
end
test do
(testpath/"test.c").write <<-EOS.undent
#include <png.h>
int main()
{
png_structp png_ptr;
png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
png_destroy_write_struct(&png_ptr, (png_infopp)NULL);
return 0;
}
EOS
system ENV.cc, "test.c", "-I#{include}", "-L#{lib}", "-lpng", "-o", "test"
system "./test"
end
end
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