fix bugs on building extensions

ext/decoders/crunch/main.cpp

@@ -147,7 +147,7 @@ void Init_crunch()
     VALUE mMikunyan = rb_define_module("Mikunyan");
     VALUE mDecodeHelper = rb_define_module_under(mMikunyan, "DecodeHelper");
     VALUE cCrunchStream = rb_define_class_under(mDecodeHelper, "CrunchStream", rb_cObject);
-    rb_attr(cCrunchStream, rb_intern("data"), TRUE, FALSE, TRUE);
+    rb_attr(cCrunchStream, rb_intern("data"), 1, 0, 1);
 
     const char* stFileInfoStr[] = {"struct_size", "actual_data_size", "header_size", "total_palette_size", "tables_size", "levels", "level_compressed_size", "color_endpoint_palette_entries", "color_selector_palette_entries", "alpha_endpoint_palette_entries", "alpha_selector_palette_entries"};
     stFileInfo = create_rb_struct(sizeof(stFileInfoStr) / sizeof(char*), stFileInfoStr);

ext/decoders/native/common.h

@@ -7,11 +7,30 @@
 #elif !defined BYTE_ORDER
 #include <endian.h>
 #endif
-#ifndef LITTLE_ENDIAN
-#define LITTLE_ENDIAN __LITTLE_ENDIAN
+
+#ifndef BYTE_ORDER
+#if defined(__BYTE_ORDER__)
+#define BYTE_ORDER __BYTE_ORDER__
+#elif defined(__BYTE_ORDER)
+#define BYTE_ORDER __BYTE_ORDER
+#else
+#error "Neither BYTE_ORDER nor __BYTE_ORDER__ is defined."
 #endif
-#ifndef BIG_ENDIAN
+#endif
+
+#ifndef LITTLE_ENDIAN
+#if defined(__LITTLE_ENDIAN)
+#define LITTLE_ENDIAN __LITTLE_ENDIAN
 #define BIG_ENDIAN __BIG_ENDIAN
+#elif defined(__LITTLE_ENDIAN__)
+#define LITTLE_ENDIAN __LITTLE_ENDIAN__
+#define BIG_ENDIAN __BIG_ENDIAN__
+#elif defined(__ORDER_LITTLE_ENDIAN__)
+#define LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__
+#define BIG_ENDIAN __ORDER_BIG_ENDIAN__
+#else
+#error "Neither LITTLE_ENDIAN, __LITTLE_ENDIAN, nor __ORDER_LITTLE_ENDIAN__ is defined."
+#endif
 #endif
 
 #if BYTE_ORDER == LITTLE_ENDIAN

ext/decoders/native/extconf.rb

@@ -1,7 +1,7 @@
 require 'mkmf'
 
 append_cppflags('-std=c11')
-append_cppflags('-O3')
+append_cppflags('-O2')
 append_cppflags('-Wall')
 append_cppflags('-Wextra')
 append_cppflags('-Wvla')