First commit, testing build system; just build hello world console app

.gitignore

@@ -1,3 +1,5 @@
+build/
+
 # ---> C
 # Prerequisites
 *.d

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.24)
+project(hello3d LANGUAGES C)
+
+set(CMAKE_C_STANDARD 17)
+set(CMAKE_C_STANDARD_REQUIRED ON)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+include(FetchContent)
+
+# --- SDL3 ---------------------------------------------------------------
+# Force static build (no shared .so/.dll), matching our earlier decision.
+set(SDL_STATIC ON CACHE BOOL "" FORCE)
+set(SDL_SHARED OFF CACHE BOOL "" FORCE)
+
+FetchContent_Declare(
+    SDL3
+    GIT_REPOSITORY https://github.com/libsdl-org/SDL.git
+    GIT_TAG release-3.4.12   # pin to a known release tag; check GitHub for the current latest
+    GIT_SHALLOW TRUE
+)
+FetchContent_MakeAvailable(SDL3)
+
+# --- cglm -----------------------------------------------------------------
+set(CGLM_STATIC ON CACHE BOOL "" FORCE)
+set(CGLM_SHARED OFF CACHE BOOL "" FORCE)
+
+FetchContent_Declare(
+    cglm
+    GIT_REPOSITORY https://github.com/recp/cglm.git
+    GIT_TAG v0.9.6          # pin to a known release tag; check GitHub for the current latest
+    GIT_SHALLOW TRUE
+)
+FetchContent_MakeAvailable(cglm)
+
+# --- Our executable ---------------------------------------------------------
+add_executable(hello3d
+    src/main.c
+)
+
+target_link_libraries(hello3d PRIVATE
+    SDL3::SDL3
+    cglm
+)
+
+target_compile_options(hello3d PRIVATE
+    $<$<C_COMPILER_ID:GNU,Clang>:-Wall -Wextra>
+)

src/main.c

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+#include <stdio.h>
+
+int main() {
+  printf("Hello world!\n");
+}