cmake fix

Author: MungoG

.gitignore

@@ -1,8 +1,11 @@
 /.vscode/
+/.cache/
+/.clangd
 /build/*
 !/build/Jamfile
 /out/
-CMakeUserPresets.json
+/CMakeUserPresets.json
+/tmpclaude-*-cwd
 
 # CMake artifacts (if accidentally run from source dir)
 #CMakeCache.txt

CMakeLists.txt

@@ -75,7 +75,7 @@ endforeach ()
 # Conditional dependencies
 if (NOT BOOST_URL_MRDOCS_BUILD)
     if (BOOST_HTTP_BUILD_TESTS)
-        set(BOOST_HTTP_UNIT_TEST_LIBRARIES filesystem)
+        set(BOOST_HTTP_UNIT_TEST_LIBRARIES asio filesystem)
     endif ()
     if (BOOST_HTTP_BUILD_EXAMPLES)
         # set(BOOST_HTTP_EXAMPLE_LIBRARIES json)