Files
ConformalLabpp/code/CMakeLists.txt
Tarik Moussa cd7b7a8fd8 cmake: add WITH_CGAL / WITH_VIEWER modes, remove unused Boost
Restructures the CMake build into three clearly separated modes:

  (default)        tests only – Eigen + GTest, no heavy deps
  -DWITH_VIEWER=ON builds viewer lib (libigl / GLFW / GLAD)
  -DWITH_CGAL=ON   builds conformallab_core CLI app;
                   implies WITH_VIEWER automatically

Changes:
- code/CMakeLists.txt: viewer and core targets are now guarded by
  option() flags; GTest / tests target is always built
- code/deps/Cmakelists.txt: CGAL, libigl, glfw, glad are only
  extracted when the corresponding mode is enabled; Eigen always
- Remove Boost (211 MB tarball, 0 usages in the codebase – CGAL 6.x
  does not require Boost for Simple_cartesian / Surface_mesh / basic IO)
- Remove code/src/main.cpp (dead file, not referenced in CMake)

All 16 C++ tests pass in tests-only mode (verified locally).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-09 21:42:43 +02:00

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CMake
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cmake_minimum_required(VERSION 3.20)
set(PROJECT_NAME "conformallab_core")
project(${PROJECT_NAME} LANGUAGES C CXX)
message(STATUS "Configuring ${PROJECT_NAME}...")
# ── Build modes ────────────────────────────────────────────────────────────────
#
# Default (CI / tests-only): only Eigen + GTest are required.
#
# -DWITH_CGAL=ON builds the conformallab_core CLI app (needs CGAL).
# Automatically enables WITH_VIEWER because the app uses
# the viewer library for mesh visualisation.
#
# -DWITH_VIEWER=ON builds the viewer library standalone (libigl/GLFW/GLAD).
#
# ──────────────────────────────────────────────────────────────────────────────
option(WITH_CGAL "Build conformallab_core app (requires CGAL + Viewer)" OFF)
option(WITH_VIEWER "Build viewer library (libigl / GLFW / GLAD)" OFF)
# The CLI app always needs the viewer; enable it implicitly.
if(WITH_CGAL AND NOT WITH_VIEWER)
message(STATUS "WITH_CGAL implies WITH_VIEWER enabling automatically.")
set(WITH_VIEWER ON CACHE BOOL "" FORCE)
endif()
# ── Standard settings ──────────────────────────────────────────────────────────
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Build type" FORCE)
endif()
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang|GNU")
add_compile_options(-Wall -Wextra -Wpedantic)
# AddressSanitizer only in Debug (gtest_discover_tests runs the binary at
# configure time and hangs with ASan enabled).
if(CMAKE_BUILD_TYPE STREQUAL "Debug" AND NOT BUILD_TESTING)
add_compile_options(-fsanitize=address -fno-omit-frame-pointer)
add_link_options(-fsanitize=address)
endif()
endif()
# ── GTest (always tests are always built) ────────────────────────────────────
include(FetchContent)
include(CTest)
enable_testing()
FetchContent_Declare(
googletest
GIT_REPOSITORY https://github.com/google/googletest.git
GIT_TAG v1.14.0
)
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
set(INSTALL_GTEST OFF CACHE BOOL "" FORCE)
set(BUILD_GMOCK OFF CACHE BOOL "" FORCE)
FetchContent_MakeAvailable(googletest)
# ── External deps (lazy tarball extraction) ────────────────────────────────────
add_subdirectory(deps)
# ── Viewer library (optional) ──────────────────────────────────────────────────
if(WITH_VIEWER)
add_subdirectory(deps/glfw-3.4)
add_library(glad STATIC
${CMAKE_CURRENT_SOURCE_DIR}/deps/libigl-glad/src/glad.c)
target_include_directories(glad PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/deps/libigl-glad/include)
add_library(viewer STATIC src/viewer/simple_viewer.cpp)
target_include_directories(viewer PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/deps/libigl-2.6.0/include
${CMAKE_CURRENT_SOURCE_DIR}/include
${CMAKE_CURRENT_SOURCE_DIR}/deps/libigl-glad/include
${CMAKE_CURRENT_SOURCE_DIR}/deps/eigen-3.4.0/)
target_link_libraries(viewer PUBLIC glad glfw)
endif()
# ── Core CLI app (optional, requires CGAL + Viewer) ───────────────────────────
if(WITH_CGAL)
add_executable(${PROJECT_NAME} src/apps/v0/conformallab_cli.cpp)
target_include_directories(${PROJECT_NAME} SYSTEM PRIVATE
${CMAKE_CURRENT_SOURCE_DIR}/deps/single_includes
${CMAKE_CURRENT_SOURCE_DIR}/deps/eigen-3.4.0/
${CMAKE_CURRENT_SOURCE_DIR}/deps/CGAL-6.1.1/include
${CMAKE_CURRENT_SOURCE_DIR}/deps/libigl-2.6.0/include)
target_include_directories(${PROJECT_NAME} PRIVATE
${CMAKE_CURRENT_SOURCE_DIR}/include)
target_compile_definitions(${PROJECT_NAME} PRIVATE
CGAL_DISABLE_GMP CGAL_DISABLE_MPFR)
target_link_libraries(${PROJECT_NAME} PRIVATE viewer)
set_target_properties(${PROJECT_NAME} PROPERTIES
RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/bin)
endif()
# ── Tests (always) ────────────────────────────────────────────────────────────
add_subdirectory(tests)