warning: 'be16toh' macro redefined ... ld: error: undefined symbol: letoh16

[yurivict]

/disk-samsung/freebsd-ports/finance/libbtc/work/libbtc-0793399/include/btc/portable_endian.h:52:9: warning: 'be16toh' macro redefined [-Wmacro-redefined]
#define be16toh(x) betoh16(x)
        ^
/usr/include/sys/endian.h:77:9: note: previous definition is here
#define be16toh(x)      bswap16((x))
        ^
In file included from /disk-samsung/freebsd-ports/finance/libbtc/work/libbtc-0793399/test/net_tests.c:6:
In file included from /disk-samsung/freebsd-ports/finance/libbtc/work/libbtc-0793399/include/btc/serialize.h:34:
/disk-samsung/freebsd-ports/finance/libbtc/work/libbtc-0793399/include/btc/portable_endian.h:53:9: warning: 'le16toh' macro redefined [-Wmacro-redefined]
#define le16toh(x) letoh16(x)
        ^
/usr/include/sys/endian.h:80:9: note: previous definition is here
#define le16toh(x)      ((uint16_t)(x))
        ^
In file included from /disk-samsung/freebsd-ports/finance/libbtc/work/libbtc-0793399/test/net_tests.c:6:
In file included from /disk-samsung/freebsd-ports/finance/libbtc/work/libbtc-0793399/include/btc/serialize.h:34:
/disk-samsung/freebsd-ports/finance/libbtc/work/libbtc-0793399/include/btc/portable_endian.h:55:9: warning: 'be32toh' macro redefined [-Wmacro-redefined]
#define be32toh(x) betoh32(x)
        ^
/usr/include/sys/endian.h:78:9: note: previous definition is here
#define be32toh(x)      bswap32((x))
        ^
In file included from /disk-samsung/freebsd-ports/finance/libbtc/work/libbtc-0793399/test/net_tests.c:6:
In file included from /disk-samsung/freebsd-ports/finance/libbtc/work/libbtc-0793399/include/btc/serialize.h:34:
/disk-samsung/freebsd-ports/finance/libbtc/work/libbtc-0793399/include/btc/portable_endian.h:56:9: warning: 'le32toh' macro redefined [-Wmacro-redefined]
#define le32toh(x) letoh32(x)
        ^
/usr/include/sys/endian.h:81:9: note: previous definition is here
#define le32toh(x)      ((uint32_t)(x))
        ^
In file included from /disk-samsung/freebsd-ports/finance/libbtc/work/libbtc-0793399/test/net_tests.c:6:
In file included from /disk-samsung/freebsd-ports/finance/libbtc/work/libbtc-0793399/include/btc/serialize.h:34:
/disk-samsung/freebsd-ports/finance/libbtc/work/libbtc-0793399/include/btc/portable_endian.h:58:9: warning: 'be64toh' macro redefined [-Wmacro-redefined]
#define be64toh(x) betoh64(x)
        ^
...
...
ld: error: undefined symbol: letoh16
>>> referenced by serialize.c
>>>               serialize.c.o:(deser_u16) in archive libbtc.a
>>> referenced by serialize.c
>>>               serialize.c.o:(deser_varlen) in archive libbtc.a
>>> referenced by serialize.c
>>>               serialize.c.o:(deser_varlen_from_file) in archive libbtc.a
>>> referenced 3 more times

ld: error: undefined symbol: letoh32
>>> referenced by serialize.c
>>>               serialize.c.o:(deser_s32) in archive libbtc.a
>>> referenced by serialize.c
>>>               serialize.c.o:(deser_u32) in archive libbtc.a
>>> referenced by serialize.c
>>>               serialize.c.o:(deser_varlen) in archive libbtc.a
>>> referenced 8 more times

ld: error: undefined symbol: letoh64
>>> referenced by serialize.c
>>>               serialize.c.o:(deser_u64) in archive libbtc.a
>>> referenced by serialize.c
>>>               serialize.c.o:(deser_varlen) in archive libbtc.a
>>> referenced by serialize.c
>>>               serialize.c.o:(deser_varlen_from_file) in archive libbtc.a
>>> referenced 4 more times

OS: FreeBSD 13