Fix build with newer Apple clang#13157
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Four issues from newer Apple clang (version 21): 1. TextView.h: -Wdeprecated-literal-operator flags the whitespace between `""` and the suffix identifier in user-defined literal operator declarations. Remove the space in `operator"" _tv` and `operator"" _sv`. 2. configure.ac: the version check added in PR apache#12834 only applied -Wno-cast-function-type-mismatch when Apple clang was exactly version 17, so the flag was silently skipped on 21+. Extend the check to match version >= 17. 3. CryptoHash.h: memset/memcpy on non-trivially-copyable union type trip -Wnontrivial-memcall. Cast `this` to `void *`. 4. HostStatus.cc: same issue with bzero on HostStatRec.
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Four issues from newer Apple clang (version 21):
TextView.h: -Wdeprecated-literal-operator flags the whitespace between
""and the suffix identifier in user-defined literal operator declarations. Remove the space inoperator"" _tvandoperator"" _sv.configure.ac: the version check added in PR Make 9.2.x buildable on macOS 26 #12834 only applied -Wno-cast-function-type-mismatch when Apple clang was exactly version 17, so the flag was silently skipped on 21+. Extend the check to match version >= 17.
CryptoHash.h: memset/memcpy on non-trivially-copyable union type trip -Wnontrivial-memcall. Cast
thistovoid *.HostStatus.cc: same issue with bzero on HostStatRec.