Merge topic 'reduce-try_compile'

9f392389 libarchive: Map fixed-size integer types from KWIML as typedefs
d20bf471 liblzma: Map fixed-size integer types from KWIML as typedefs
92c4316d KWSys: Hard-code try_compile results on Windows
2bc89f1a cmSystemTools: Hard-code try_compile results for Windows
d350d466 libarchive: Hard-code try_compile results for bundled dependencies
bf60ac24 Source: Assume elf.h does not exist on Windows
f408cc2c expat: Remove unused try_compile checks
6c4f3dcd Utilities: Update hard-coded try_compile results for third-party libraries

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !4848