Set up the build system for the demo app.

demo/CMakeLists.txt

@@ -6,4 +6,32 @@
 
 cmake_minimum_required(VERSION 3.20)
 
-# TODO clang tidy etc
+project(udpard_demo C)
+
+# Set up static analysis.
+set(NO_STATIC_ANALYSIS OFF CACHE BOOL "disable udpard static analysis")
+if (NOT NO_STATIC_ANALYSIS)
+    # clang-tidy (separate config files per directory)
+    find_program(clang_tidy NAMES clang-tidy)
+    if (NOT clang_tidy)
+        message(FATAL_ERROR "Could not locate clang-tidy")
+    endif ()
+    message(STATUS "Using clang-tidy: ${clang_tidy}")
+endif ()
+
+# Define the LibUDPard static library build target. No special options are needed to use the library, it's very simple.
+add_library(udpard_demo STATIC ${CMAKE_CURRENT_SOURCE_DIR}/../libudpard/udpard.c)
+target_include_directories(udpard_demo INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/../libudpard)
+
+# Define the demo application build target and link it with the library.
+add_executable(demo main.c)
+target_link_libraries(demo PRIVATE udpard_demo)
+set_target_properties(
+        demo
+        PROPERTIES
+        COMPILE_FLAGS "-Wall -Wextra -Werror -pedantic -Wdouble-promotion -Wswitch-enum -Wfloat-equal \
+            -Wundef -Wconversion -Wtype-limits -Wsign-conversion -Wcast-align -Wmissing-declarations"
+        C_STANDARD 11
+        C_EXTENSIONS OFF
+        C_CLANG_TIDY "${clang_tidy}"
+)

demo/README.md

@@ -0,0 +1,3 @@
+# LibUDPard demo application
+
+here be 🐉