strlib.c:176:2: error: array type 'va_list' (aka '__builtin_va_list') is not assignable
176 | G_VA_COPY(ap2,ap1);
| ^~~~~~~~~~~~~~~~~~
strlib.c:48:42: note: expanded from macro 'G_VA_COPY'
48 | # define G_VA_COPY(ap1, ap2) ((ap1) = (ap2))
| ~~~~~ ^
1 error generated.