diff --git a/.clang-uml b/.clang-uml
index 225d0717..12e5bba2 100644
--- a/.clang-uml
+++ b/.clang-uml
@@ -1,6 +1,8 @@
 compilation_database_dir: debug
 output_directory: docs/diagrams
 comment_parser: clang
+remove_compile_flags:
+  - -Wno-class-memaccess
 generate_links:
   link: "{% if existsIn(element, \"doxygen_link\") %}{{ element.doxygen_link }}{% endif %}"
   tooltip: "{% if existsIn(element, \"comment\") and existsIn(element.comment, \"brief\") %}{{ abbrv(trim(replace(element.comment.brief.0, \"\\n+\", \" \")), 256) }}{% else %}{{ element.name }}{% endif %}"
@@ -72,4 +74,4 @@ diagrams:
     include!: uml/package/architecture_package.yml
   # Include diagrams
   include_graph:
-    include!: uml/include/include.yml
\ No newline at end of file
+    include!: uml/include/include.yml
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 53779193..27bd54ad 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -132,6 +132,20 @@ if(APPLE OR (LLVM_VERSION_MAJOR GREATER_EQUAL 16))
             ${CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES})
 endif()
 
+#
+# Setup custom compile options depending on various compiler
+# and environment quirks
+#
+if(LLVM_VERSION_MAJOR GREATER_EQUAL 17)
+    if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+        set(CUSTOM_COMPILE_OPTIONS "-Wno-class-memaccess")
+    endif()
+endif()
+if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
+    set(CUSTOM_COMPILE_OPTIONS
+            "${CUSTOM_COMPILE_OPTIONS} -Wno-unused-private-field")
+endif()
+
 #
 # Setup threads library
 #
diff --git a/README.md b/README.md
index 4d408897..27a7dab9 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 [![Build status](https://github.com/bkryza/clang-uml/actions/workflows/build.yml/badge.svg)](https://github.com/bkryza/clang-uml/actions)
 [![Coverage](https://codecov.io/gh/bkryza/clang-uml/branch/master/graph/badge.svg)](https://codecov.io/gh/bkryza/clang-uml)
 [![Version](https://img.shields.io/badge/version-0.4.0-blue)](https://github.com/bkryza/clang-uml/releases)
-[![Version](https://img.shields.io/badge/LLVM-12,13,14,15,16-orange)](https://github.com/bkryza/clang-uml/releases)
+[![Version](https://img.shields.io/badge/LLVM-12,13,14,15,16,17-orange)](https://github.com/bkryza/clang-uml/releases)
 [![Doxygen](https://img.shields.io/badge/Docs-Doxygen-gainsboro)](https://clang-uml.github.io)
 
 `clang-uml` is an automatic C++ to UML class, sequence, package and include diagram generator, driven by
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 9e285315..f36f662d 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -25,8 +25,8 @@ endif(MSVC)
 target_compile_features(clang-umllib INTERFACE cxx_std_17)
 target_compile_options(clang-umllib PRIVATE
         $<$<OR:$<CXX_COMPILER_ID:Clang>,$<CXX_COMPILER_ID:GNU>>:
-        -Werror -Wall -Wextra -Wno-unused-parameter -Wno-unused-private-field
-        -Wno-deprecated-declarations>
+        -Werror -Wall -Wextra -Wno-unused-parameter
+        -Wno-deprecated-declarations ${CUSTOM_COMPILE_OPTIONS}>
         $<$<CXX_COMPILER_ID:MSVC>:/MP /W1 /bigobj /wd4291 /wd4624 /wd4244>)
 target_compile_definitions(clang-umllib PRIVATE
         $<$<CXX_COMPILER_ID:MSVC>:
@@ -40,8 +40,8 @@ add_executable(clang-uml ${MAIN_SOURCE_FILE})
 target_compile_features(clang-uml PUBLIC cxx_std_17)
 target_compile_options(clang-uml PRIVATE
         $<$<OR:$<CXX_COMPILER_ID:Clang>,$<CXX_COMPILER_ID:GNU>>:
-        -Werror -Wall -Wextra -Wno-unused-parameter -Wno-unused-private-field
-        -Wno-deprecated-declarations>
+        -Werror -Wall -Wextra -Wno-unused-parameter
+        -Wno-deprecated-declarations ${CUSTOM_COMPILE_OPTIONS}>
         $<$<CXX_COMPILER_ID:MSVC>:/MP /W1 /bigobj /wd4291 /wd4624 /wd4244>)
 target_compile_definitions(clang-uml PRIVATE
         ${ENABLE_BACKWARD_CPP})
diff --git a/src/common/model/template_parameter.h b/src/common/model/template_parameter.h
index 4c12d1a5..6334188a 100644
--- a/src/common/model/template_parameter.h
+++ b/src/common/model/template_parameter.h
@@ -504,8 +504,6 @@ private:
     /*! Whether template argument is ellipsis (...) */
     bool is_ellipsis_{false};
 
-    bool is_noexcept_{false};
-
     /*! Whether the template parameter is variadic */
     bool is_variadic_{false};
 
diff --git a/src/sequence_diagram/model/diagram.h b/src/sequence_diagram/model/diagram.h
index 6e50f840..4c58e5e1 100644
--- a/src/sequence_diagram/model/diagram.h
+++ b/src/sequence_diagram/model/diagram.h
@@ -328,8 +328,6 @@ private:
         return block_end_types.count(mt) > 0;
     };
 
-    bool started_{false};
-
     std::map<common::model::diagram_element::id_t, activity> sequences_;
 
     std::map<common::model::diagram_element::id_t, std::unique_ptr<participant>>
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index df5607c6..969967b0 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -58,8 +58,9 @@ foreach(TEST_NAME ${TEST_CASES})
     target_compile_options(${TEST_NAME} PRIVATE
             $<$<COMPILE_LANGUAGE:CXX>:
             $<$<OR:$<CXX_COMPILER_ID:Clang>,$<CXX_COMPILER_ID:GNU>>:
-            -Wno-unused-parameter -Wno-unused-private-field -Wno-unused-variable
-            -Wno-attributes -Wno-nonnull -Wno-deprecated-enum-enum-conversion>
+            -Wno-unused-parameter -Wno-unused-variable
+            -Wno-attributes -Wno-nonnull -Wno-deprecated-enum-enum-conversion
+            ${CUSTOM_COMPILE_OPTIONS}>
             $<$<CXX_COMPILER_ID:MSVC>:/W1 /bigobj /wd4624>>)
     target_link_libraries(${TEST_NAME} PRIVATE ${CLANG_UML_TEST_LIBRARIES})
 endforeach()
diff --git a/tests/catch.h b/tests/catch.h
index 27888c9d..9cb6f4fe 100644
--- a/tests/catch.h
+++ b/tests/catch.h
@@ -13301,9 +13301,6 @@ bool RegexMatcher::match(std::string const &matchee) const
 {
     auto flags = std::regex::ECMAScript; // ECMAScript is the default syntax
                                          // option anyway
-#if !defined(_WIN32)
-    flags |= std::regex::multiline;
-#endif
 
     if (m_caseSensitivity == CaseSensitive::Choice::No) {
         flags |= std::regex::icase;