-# serial 2
+# serial 3
# Define some macros required for proper operation of code in lib/*.c
# on MSDOS/Windows systems.
AH_VERBATIM(ISSLASH,
[#if FILESYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR
-# define ISSLASH(C) ((C) == '/' || (C) == '\\\\')
+# define ISSLASH(C) ((C) == '/' || (C) == '\\')
#else
# define ISSLASH(C) ((C) == '/')
#endif])