diff options
| -rw-r--r-- | Utilities/cmlibarchive/libarchive/archive_read_support_format_lha.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Utilities/cmlibarchive/libarchive/archive_read_support_format_lha.c b/Utilities/cmlibarchive/libarchive/archive_read_support_format_lha.c index c359d83..eff02d8 100644 --- a/Utilities/cmlibarchive/libarchive/archive_read_support_format_lha.c +++ b/Utilities/cmlibarchive/libarchive/archive_read_support_format_lha.c @@ -1712,10 +1712,13 @@ lha_crc16(uint16_t crc, const void *pp, size_t len) for (;len >= 8; len -= 8) { /* This if statement expects compiler optimization will * remove the stament which will not be executed. */ +#ifndef __has_builtin +# define __has_builtin(x) 0 +#endif #if defined(_MSC_VER) && _MSC_VER >= 1400 /* Visual Studio */ # define bswap16(x) _byteswap_ushort(x) #elif (defined(__GNUC__) && __GNUC__ >= 4 && __GNUC_MINOR__ >= 8) \ - || defined(__clang__) + || (defined(__clang__) && __has_builtin(__builtin_bswap16)) # define bswap16(x) __builtin_bswap16(x) #else # define bswap16(x) ((((x) >> 8) & 0xff) | ((x) << 8)) |