Initial commit

CMakeLists.txt

@@ -0,0 +1,52 @@
+cmake_minimum_required(VERSION 3.30)
+
+# Opt into experimental C++ modules dyndep + `import std;` support.
+# Required until CMake declares these stable; see CMake docs for the current UUID.
+set(CMAKE_EXPERIMENTAL_CXX_MODULE_DYNDEP 1)
+set(CMAKE_EXPERIMENTAL_CXX_IMPORT_STD "d0edc3af-4c50-42ea-a356-e2862fe7a444")
+set(CMAKE_CXX_MODULE_STD ON)
+
+project(cargoxx LANGUAGES CXX VERSION 0.1.0)
+
+# Phase 0: hand-written CMakeLists.txt. Replaced by generated build/CMakeLists.txt
+# at milestone M3 once cargoxx can build itself. See TECH_SPEC.md §15.
+
+set(CMAKE_CXX_STANDARD 23)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+set(CMAKE_CXX_SCAN_FOR_MODULES ON)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+if(NOT CMAKE_BUILD_TYPE)
+    set(CMAKE_BUILD_TYPE Debug CACHE STRING "Build type" FORCE)
+endif()
+
+# TECH_SPEC.md §17: -Wall -Wextra -Wpedantic -Wconversion, -Werror in CI.
+add_compile_options(-Wall -Wextra -Wpedantic -Wconversion)
+
+option(CARGOXX_WERROR "Treat warnings as errors" OFF)
+if(CARGOXX_WERROR)
+    add_compile_options(-Werror)
+endif()
+
+# ----- cargoxx library: all module units -----
+add_library(cargoxx STATIC)
+target_sources(cargoxx
+    PUBLIC
+        FILE_SET CXX_MODULES FILES
+            src/lib.cppm
+            src/util/util.cppm
+            src/exec/exec.cppm
+            src/manifest/manifest.cppm
+            src/lockfile/lockfile.cppm
+            src/layout/layout.cppm
+            src/linkdb/linkdb.cppm
+            src/resolver/resolver.cppm
+            src/codegen/codegen.cppm
+            src/cli/cli.cppm
+)
+
+# ----- cargoxx binary -----
+add_executable(cargoxx_bin src/main.cpp)
+set_target_properties(cargoxx_bin PROPERTIES OUTPUT_NAME cargoxx)
+target_link_libraries(cargoxx_bin PRIVATE cargoxx)