diff --git a/Source/Platform.h b/Source/Platform.h
index 2124094b..49853f31 100644
--- a/Source/Platform.h
+++ b/Source/Platform.h
@@ -135,7 +135,9 @@ typedef WORD LANGID;
 #    define MAKEINTRESOURCE(i) (LPSTR)((DWORD)((WORD)(i)))
 #  endif
 #  ifndef IMAGE_FIRST_SECTION
-#    define IMAGE_FIRST_SECTION(h) ((PIMAGE_SECTION_HEADER) ((DWORD)h+FIELD_OFFSET(IMAGE_NT_HEADERS,OptionalHeader)+((PIMAGE_NT_HEADERS)(h))->FileHeader.SizeOfOptionalHeader))
+#    define IMAGE_FIRST_SECTION(h) ( PIMAGE_SECTION_HEADER( (DWORD) h + \
+                                     FIELD_OFFSET(IMAGE_NT_HEADERS, OptionalHeader) + \
+                                     FIX_ENDIAN_INT16(PIMAGE_NT_HEADERS(h)->FileHeader.SizeOfOptionalHeader) ) )
 #  endif
 #  ifndef RGB
 #    define RGB(r,g,b) ((DWORD)(((BYTE)(r)|((WORD)(g)<<8))|(((DWORD)(BYTE)(b))<<16)))
@@ -613,8 +615,13 @@ typedef WORD LANGID;
 
 #ifndef _WIN32
 #  define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16
+#  ifndef __BIG_ENDIAN__
 #    define IMAGE_DOS_SIGNATURE 0x5A4D
 #    define IMAGE_NT_SIGNATURE 0x00004550
+#  else
+#    define IMAGE_DOS_SIGNATURE 0x4D5A
+#    define IMAGE_NT_SIGNATURE 0x50450000
+#  endif
 #  define IMAGE_FILE_DLL 8192
 #  define IMAGE_DIRECTORY_ENTRY_EXPORT 0
 #  define IMAGE_SIZEOF_SHORT_NAME 8