cmake KJ_HAS_ZLIB examples

cmake KJ_HAS_ZLIB examples

verilog-to-routing/vtr-verilog-to-routing libs/EXTERNAL/capnproto/c++/src/kj/CMakeLists.txt :179

target_compile_definitions(kj-http PRIVATE KJ_HAS_ZLIB)

verilog-to-routing/vtr-verilog-to-routing libs/EXTERNAL/capnproto/c++/src/kj/CMakeLists.txt :228

target_compile_definitions(kj-gzip PRIVATE KJ_HAS_ZLIB)

verilog-to-routing/vtr-verilog-to-routing libs/EXTERNAL/capnproto/c++/src/kj/CMakeLists.txt :306

set_property(
        SOURCE compat/gzip-test.c++
        APPEND PROPERTY COMPILE_DEFINITIONS KJ_HAS_ZLIB
      )