This is needed if building introspection because:
a) Meson's own setting of FILE_OFFSET_BITS (which it does by default) doesn't affect the introspection tooling;
b) glibc's headers seem to react poorly to just _TIME_BITS being set, even though in this cas, the failure was for a 64-bit ABI anyway.
This is effectively a noop given meson always sets -D_FILE_OFFSET_BITS=64, it just didn't get propagated to the right bit, and we didn't notice until the change in ce9732a87bc2a0ddca841b49b9b9e24351ea78c8.
This is needed if building introspection because: a) Meson's own setting of FILE_OFFSET_BITS (which it does by default) doesn't affect the introspection tooling;
b) glibc's headers seem to react poorly to just _TIME_BITS being set, even though in this cas, the failure was for a 64-bit ABI anyway.
This is effectively a noop given meson always sets -D_FILE_OFFSET_BITS=64, it just didn't get propagated to the right bit, and we didn't notice until the change in ce9732a87bc2a0ddca841b49b9b9e24351ea78c8.
Fixes: ce9732a87bc2a0ddca841b49b9b9e24351ea78c8