Squashed 'libbitcoinkernel-sys/bitcoin/' changes from 44bff1d88d44..c9e174da30e1

c9e174da30e1 kernel: Support building with reduced exports
REVERT: 44bff1d88d44 kernel: Support building with reduced exports

git-subtree-dir: libbitcoinkernel-sys/bitcoin
git-subtree-split: c9e174da30e1ea09ddcdd2afa6b34c71484d1df7

Author: TheCharlatan

src/kernel/CMakeLists.txt

@@ -97,6 +97,11 @@ target_link_libraries(bitcoinkernel
 add_custom_target(libbitcoinkernel)
 add_dependencies(libbitcoinkernel bitcoinkernel)
 
+get_target_property(bitcoinkernel_type bitcoinkernel TYPE)
+if(bitcoinkernel_type STREQUAL "STATIC_LIBRARY")
+  target_compile_definitions(bitcoinkernel PUBLIC BITCOINKERNEL_STATIC)
+endif()
+
 # When building the static library, install all static libraries the
 # bitcoinkernel depends on.
 if(NOT BUILD_SHARED_LIBS)