initial CMake and DESIGN

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.20)
+project(new-radar LANGUAGES C CXX)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+# Output binaries to build/bin
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+
+# ── Find system packages ──────────────────────────────────────────────────────
+find_package(OpenGL REQUIRED)
+find_package(glfw3  REQUIRED)
+find_package(Freetype REQUIRED)
+find_package(GDAL   REQUIRED)
+
+# PostgreSQL (libpq)
+find_package(PostgreSQL REQUIRED)
+
+# ── GLAD (bundled) ────────────────────────────────────────────────────────────
+add_library(glad STATIC glad/src/glad.c)
+target_include_directories(glad PUBLIC ${CMAKE_SOURCE_DIR}/include)
+
+# ── Collect sources ───────────────────────────────────────────────────────────
+file(GLOB_RECURSE SOURCES CONFIGURE_DEPENDS src/*.cpp)
+
+# ── Main executable ───────────────────────────────────────────────────────────
+add_executable(radar ${SOURCES})
+
+target_include_directories(radar PRIVATE
+    ${CMAKE_SOURCE_DIR}/include
+    ${FREETYPE_INCLUDE_DIRS}
+    ${GDAL_INCLUDE_DIRS}
+    ${PostgreSQL_INCLUDE_DIRS}
+)
+
+target_link_libraries(radar PRIVATE
+    glad
+    OpenGL::GL
+    glfw
+    Freetype::Freetype
+    ${GDAL_LIBRARIES}
+    ${PostgreSQL_LIBRARIES}
+    pthread
+)
+
+# ── Compiler flags ────────────────────────────────────────────────────────────
+target_compile_options(radar PRIVATE
+    -Wall
+    -Wextra
+    -Wpedantic
+    $<$<CONFIG:Debug>:-g -O0>
+    $<$<CONFIG:Release>:-O2>
+)
+
+# AMD Radeon 780M uses Mesa; no vendor-specific extensions
+target_compile_definitions(radar PRIVATE
+    GL_GLEXT_PROTOTYPES
+)