libserdes 5.3.1 (new formula)

Add formula for libserdes, an Avro serialization/deserialization for
C/C++ with support for the Confluent Schema Registry.

Formula/libserdes.rb

@@ -0,0 +1,39 @@
+class Libserdes < Formula
+  desc "Avro serialization/deserialization library for C/C++"
+  homepage "https://github.com/confluentinc/libserdes"
+  url "http://packages.confluent.io/deb/5.3/pool/main/c/confluent-libserdes/confluent-libserdes_5.3.1.orig.tar.gz"
+  sha256 "06bcb4066f6f13d2f4ece7987188c1feb9510c36bb5828e3283c267267c3d470"
+
+  depends_on "avro-c"
+  depends_on "jansson"
+  uses_from_macos "curl"
+
+  def install
+    system "./configure", "--prefix=#{prefix}"
+    system "make"
+    system "make", "install"
+  end
+
+  test do
+    (testpath/"test.c").write <<~EOS
+      #include <err.h>
+      #include <stddef.h>
+      #include <sys/types.h>
+      #include <libserdes/serdes.h>
+
+      int main()
+      {
+        char errstr[512];
+        serdes_conf_t *sconf = serdes_conf_new(NULL, 0, NULL);
+        serdes_t *serdes = serdes_new(sconf, errstr, sizeof(errstr));
+        if (serdes == NULL) {
+          errx(1, "constructing serdes: %s", errstr);
+        }
+        serdes_destroy(serdes);
+        return 0;
+      }
+    EOS
+    system ENV.cc, "test.c", "-L#{lib}", "-lserdes", "-o", "test"
+    system "./test"
+  end
+end