cmake : define WHISPER_BIG_ENDIAN for big-endian targets

Author: fitzsim

src/CMakeLists.txt

@@ -94,6 +94,10 @@ set_target_properties(whisper PROPERTIES
 target_include_directories(whisper PUBLIC . ../include)
 target_compile_features   (whisper PUBLIC cxx_std_11) # don't bump
 
+if (CMAKE_CXX_BYTE_ORDER STREQUAL "BIG_ENDIAN")
+    set(WHISPER_EXTRA_FLAGS ${WHISPER_EXTRA_FLAGS} -DWHISPER_BIG_ENDIAN)
+endif()
+
 if (WHISPER_EXTRA_FLAGS)
     target_compile_options(whisper PRIVATE ${WHISPER_EXTRA_FLAGS})
 endif()

src/whisper.cpp

@@ -39,7 +39,7 @@
 #pragma warning(disable: 4244 4267) // possible loss of data
 #endif
 
-#if defined(GGML_BIG_ENDIAN)
+#if defined(WHISPER_BIG_ENDIAN)
 template<typename T>
 static T byteswap(T value) {
     T value_swapped;