Ondřej Surý authored Jun 03, 2019 and Michał Kępień committed Jun 03, 2019

While Solaris does not support the nonstandard hto[bl]e{16,32,64}() and
[bl]e{16,32,64}toh() conversion functions, it does have some
byte-swapping macros available in <sys/byteorder.h>.  Ensure these
macros are used in the fallback definitions of the aforementioned
nonstandard functions.