Prefixed new #defines to prevent collisions.
Other libraries might have their own USE_WIN32_*FILES.
diff --git a/include/libssh2.h b/include/libssh2.h
index 6d59937..8b4695a 100644
--- a/include/libssh2.h
+++ b/include/libssh2.h
@@ -151,33 +151,33 @@
#if defined(_MSC_VER) && !defined(_WIN32_WCE)
# if (_MSC_VER >= 900) && (_INTEGRAL_MAX_BITS >= 64)
-# define USE_WIN32_LARGE_FILES
+# define LIBSSH2_USE_WIN32_LARGE_FILES
# else
-# define USE_WIN32_SMALL_FILES
+# define LIBSSH2_USE_WIN32_SMALL_FILES
# endif
#endif
-#if defined(__MINGW32__) && !defined(USE_WIN32_LARGE_FILES)
-# define USE_WIN32_LARGE_FILES
+#if defined(__MINGW32__) && !defined(LIBSSH2_USE_WIN32_LARGE_FILES)
+# define LIBSSH2_USE_WIN32_LARGE_FILES
#endif
-#if defined(__WATCOMC__) && !defined(USE_WIN32_LARGE_FILES)
-# define USE_WIN32_LARGE_FILES
+#if defined(__WATCOMC__) && !defined(LIBSSH2_USE_WIN32_LARGE_FILES)
+# define LIBSSH2_USE_WIN32_LARGE_FILES
#endif
#if defined(__POCC__)
-# undef USE_WIN32_LARGE_FILES
+# undef LIBSSH2_USE_WIN32_LARGE_FILES
#endif
-#if defined(_WIN32) && !defined(USE_WIN32_LARGE_FILES) && !defined(USE_WIN32_SMALL_FILES)
-# define USE_WIN32_SMALL_FILES
+#if defined(_WIN32) && !defined(LIBSSH2_USE_WIN32_LARGE_FILES) && !defined(LIBSSH2_USE_WIN32_SMALL_FILES)
+# define LIBSSH2_USE_WIN32_SMALL_FILES
#endif
/*
* Large file (>2Gb) support using WIN32 functions.
*/
-#ifdef USE_WIN32_LARGE_FILES
+#ifdef LIBSSH2_USE_WIN32_LARGE_FILES
# include <io.h>
# include <sys/types.h>
# include <sys/stat.h>
@@ -190,7 +190,7 @@
* Small file (<2Gb) support using WIN32 functions.
*/
-#ifdef USE_WIN32_SMALL_FILES
+#ifdef LIBSSH2_USE_WIN32_SMALL_FILES
# include <sys/types.h>
# include <sys/stat.h>
# ifndef _WIN32_WCE
