Copy paste cmake code until it seems like it maybe downloads TOML11

cmake/FDBComponents.cmake

@@ -113,6 +113,17 @@ else()
   set(WITH_ROCKSDB_EXPERIMENTAL OFF)
 endif()
 
+################################################################################
+# TOML11
+################################################################################
+
+find_package(TOML11)
+if (TOML11_FOUND)
+  set(WITH_TOML ON)
+else()
+  set(WITH_TOML OFF)
+endif()
+
 ################################################################################
 
 file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/packages)
@@ -131,6 +142,7 @@ function(print_components)
   message(STATUS "Build Bindings (depends on Python):   ${WITH_PYTHON}")
   message(STATUS "Configure CTest (depends on Python):  ${WITH_PYTHON}")
   message(STATUS "Build with RocksDB:                   ${WITH_ROCKSDB_EXPERIMENTAL}")
+  message(STATUS "Build with TOML testspecs:            ${WITH_TOML}")
   message(STATUS "=========================================")
 endfunction()
 

cmake/FindTOML11.cmake

@@ -0,0 +1,26 @@
+find_path(TOML11_INCLUDE_DIR
+  NAMES
+    toml.hpp
+  PATH_SUFFIXES
+    toml11
+   HINTS
+    "${_TOML11_HINTS}"
+)
+
+if (NOT TOML11_INCLUDE_DIR)
+  include(ExternalProject)
+
+  ExternalProject_add(toml11
+    URL "https://github.com/ToruNiina/toml11/archive/v3.4.0.tar.gz"
+    URL_HASH SHA256=bc6d733efd9216af8c119d8ac64a805578c79cc82b813e4d1d880ca128bd154d
+    CMAKE_CACHE_ARGS
+      -DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_CURRENT_BINARY_DIR}/toml11
+      -Dtoml11_BUILD_TEST:BOOL=OFF)
+
+  set(TOML11_INCLUDE_DIR ${CMAKE_CURRENT_BINARY_DIR}/toml11)
+endif()
+
+find_package_handle_standard_args(TOML11
+  REQUIRED_VARS
+    TOML11_INCLUDE_DIR
+)

fdbserver/CMakeLists.txt

@@ -253,6 +253,10 @@ else()
   target_link_libraries(fdbserver PRIVATE fdbclient fdb_sqlite)
 endif()
 
+if (WITH_TOML11)
+  add_dependencies(fdbserver toml11)
+endif()
+
 if (GPERFTOOLS_FOUND)
   add_compile_definitions(USE_GPERFTOOLS)
   target_link_libraries(fdbserver PRIVATE gperftools)