Remove -fno-strict-aliasing

We don't do fishy things like type punning so it really isn't
necessary, and supplying it prevents certain optimizations.

c_src/decoder.c

@@ -718,15 +718,19 @@ decode_iter(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
     ERL_NIF_TERM ret;
     ERL_NIF_TERM tmp_argv[5];
 
+    void* res;
+
     size_t start;
     size_t bytes_processed = 0;
 
     if(!enif_inspect_binary(env, argv[0], &bin)) {
         return enif_make_badarg(env);
-    } else if(!enif_get_resource(env, argv[1], st->res_dec, (void**) &d)) {
+    } else if(!enif_get_resource(env, argv[1], st->res_dec, &res)) {
         return enif_make_badarg(env);
     }
 
+    d = (Decoder*) res;
+
     dec_init(d, env, argv[0], &bin);
     objs = argv[3];
     curr = argv[4];

c_src/encoder.c

@@ -706,13 +706,17 @@ encode_iter(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
     ErlNifSInt64 lval;
     double dval;
 
+    void* res;
+
     size_t start;
     size_t bytes_processed = 0;
 
-    if(!enif_get_resource(env, argv[0], st->res_enc, (void**) &e)) {
+    if(!enif_get_resource(env, argv[0], st->res_enc, &res)) {
         return enif_make_badarg(env);
     }
 
+    e = (Encoder*) res;
+
     if(!enc_init(e, env)) {
         return enif_make_badarg(env);
     }

rebar.config

@@ -8,7 +8,7 @@
 
 {port_env, [
     {"(linux|solaris|freebsd|netbsd|openbsd|dragonfly|darwin|gnu)",
-        "CFLAGS", "$CFLAGS -Ic_src/ -g -Wall -flto -Werror -O3 -fno-strict-aliasing"},
+        "CFLAGS", "$CFLAGS -Ic_src/ -g -Wall -flto -Werror -O3"},
     {"(linux|solaris|freebsd|netbsd|openbsd|dragonfly|darwin|gnu)",
         "CXXFLAGS", "$CXXFLAGS -Ic_src/ -g -Wall -flto -Werror -O3"},