Both the const and pure attributes disallow modifying input arguments
but sd_id128_in_setv() clearly modifies its ap input argument by iterating
over it with va_arg() so drop the _sd_const_ attribute from
sd_id128_in_setv().
(cherry picked from commit
675fa49f69943b0f009c973ed3d1e90afc1d88b1)
#define SD_ID128_NULL ((const sd_id128_t) { .qwords = { 0, 0 }})
#define SD_ID128_ALLF ((const sd_id128_t) { .qwords = { UINT64_C(0xFFFFFFFFFFFFFFFF), UINT64_C(0xFFFFFFFFFFFFFFFF) }})
-_sd_const_ static __inline__ int sd_id128_in_setv(sd_id128_t a, va_list ap) {
+static __inline__ int sd_id128_in_setv(sd_id128_t a, va_list ap) {
for (;;) {
sd_id128_t b = va_arg(ap, sd_id128_t);