capnpCMakeLists.patch

--- capnproto-c++-0.10.4/CMakeLists.txt	2023-04-13 16:14:33
+++ capnproto-c++-0.10.4.patch/CMakeLists.txt	2023-04-19 08:59:44
@@ -46,6 +46,10 @@
 # define list of values GUI will offer for the variable
 set_property(CACHE WITH_OPENSSL PROPERTY STRINGS AUTO ON OFF)
 
+set(WITH_ZLIB "AUTO" CACHE STRING
+  "Whether or not to build libkj-gzip by linking against zlib")
+set_property(CACHE WITH_ZLIB PROPERTY STRINGS AUTO ON OFF)
+
 # shadow cache variable original value with ON/OFF,
 # so from now on OpenSSL-specific code just has to check:
 #     if (WITH_OPENSSL)
@@ -62,6 +66,24 @@
   endif()
 elseif (WITH_OPENSSL)
   find_package(OpenSSL REQUIRED COMPONENTS Crypto SSL)
+endif()
+
+# shadow cache variable original value with ON/OFF,
+# so from now on ZLIB-specific code just has to check:
+#     if (WITH_ZLIB)
+#         ...
+#     endif()
+if(CAPNP_LITE)
+  set(WITH_ZLIB OFF)
+elseif (WITH_ZLIB STREQUAL "AUTO")
+  find_package(ZLIB)
+  if(ZLIB_FOUND)
+    set(WITH_ZLIB ON)
+  else()
+    set(WITH_ZLIB OFF)
+  endif()
+elseif (WITH_ZLIB)
+  find_package(ZLIB REQUIRED)
 endif()
 
 set(WITH_FIBERS "AUTO" CACHE STRING