fix cmake

.clang-format

@@ -0,0 +1,9 @@
+BasedOnStyle: LLVM
+UseTab: Always
+TabWidth: 4
+IndentWidth: 4
+AccessModifierOffset: -4
+IndentCaseLabels: false
+ColumnLimit: 0
+PointerAlignment: Left
+PackConstructorInitializers: Never

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.18)
+cmake_minimum_required(VERSION 3.18...4.2)
 
 project(PROJECT-NAME VERSION 1.0.0 LANGUAGES CXX)
 

format.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+find src/ ui/ \
+	\( \
+		-name '*.cxx' -o \
+		-name '*.hxx' -o \
+		-name '*.c' -o \
+		-name '*.h' \
+	\) \
+	-print \
+	-exec 'clang-format' '-i' '{}' \;

ui/impl.cmake

@@ -1,13 +1,24 @@
+# build the Rust side as a static library
 set(impl_basename "${CARGO_TARGET_DIR}/release/libPROJECT_NAME_impl")
 
+set(cargo_cmake_args)
+
+if("${CMAKE_VERSION}" VERSION_GREATER_EQUAL "3.27")
+	list(APPEND cargo_cmake_args DEPENDS_EXPLICIT_ONLY)
+endif()
+
+if("${CMAKE_VERSION}" VERSION_GREATER_EQUAL "3.28")
+	list(APPEND cargo_cmake_args JOB_SERVER_AWARE TRUE)
+endif()
+
 add_custom_command(
 	OUTPUT ${impl_basename}.a
 	COMMAND env CARGO_TARGET_DIR=${CARGO_TARGET_DIR} ${CARGO} build --release --package PROJECT-NAME-impl
 	WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
 	DEPFILE ${impl_basename}.d
 	USES_TERMINAL
-	JOB_SERVER_AWARE
-	DEPENDS_EXPLICIT_ONLY
+	VERBATIM
+	${cargo_cmake_args}
 )
 
 # HACK ensure CMake *actually adds* the command above