check for std::optional as macos can be broke af sometimes

CMakeLists.txt

@@ -52,10 +52,15 @@ if(WITH_HIVE)
   set(WITH_SHARED ON)
 endif()
 
+include(CheckCXXSourceCompiles)
+include(CheckLibraryExists)
+
 include(cmake/target_link_libraries_system.cmake)
 include(cmake/add_import_library.cmake)
 include(cmake/add_log_tag.cmake)
 include(cmake/libatomic.cmake)
+include(cmake/check_for_std_optional.cmake)
+include(cmake/check_for_std_filesystem.cmake)
 
 if (STATIC_LINK AND STATIC_LINK_RUNTIME)
   message(FATAL "Cannot set both STATIC_LINK and STATIC_LINK_RUNTIME")

cmake/check_for_std_optional.cmake

@@ -0,0 +1,18 @@
+# check for std::optional because macos is broke af sometimes
+
+set(std_optional_code [[
+#include <optional>
+
+int main() {
+   std::optional<int> maybe;
+   maybe = 1;
+   return maybe.value() == 1;
+}
+]])
+
+check_cxx_source_compiles("${std_optional_code}" was_compiled)
+if(was_compiled)
+  message(STATUS "we have std::optional")
+else()
+  message(FATAL_ERROR "we dont have std::optional your compiler is broke af")
+endif()

cmake/unix.cmake

@@ -2,9 +2,6 @@ if(NOT UNIX)
   return()
 endif()
 
-include(CheckCXXSourceCompiles)
-include(CheckLibraryExists)
-
 # can't have UNIX defined
 # can't have the include paths for libuv either?
 if(NOT IOS AND NOT ANDROID AND NOT WIN32)
@@ -76,8 +73,6 @@ endif()
 
 set(EXE_LIBS ${STATIC_LIB})
 
-include(check_for_std_filesystem)
-
 if(RELEASE_MOTTO)
   add_definitions(-DLLARP_RELEASE_MOTTO="${RELEASE_MOTTO}")
 endif()