# Shared build options and warning policy for the plot project.
#
# Included by the top-level CMakeLists.txt; every subdirectory target is
# expected to run plot_apply_warnings(<target>) so the core stays warning-clean
# under -Wall -Wextra -Wpedantic -Wconversion -Wshadow.

if(CMAKE_VERSION VERSION_LESS 3.24)
  message(FATAL_ERROR "plot requires CMake 3.24 or newer (found ${CMAKE_VERSION})")
endif()

# Adapters and examples pull in third-party SDKs, so they default to OFF; the
# core library and its tests build on a bare toolchain.
option(PLOT_BUILD_TESTS "Build the plot test suite" ON)
option(PLOT_BUILD_EXAMPLES "Build the example programs" OFF)
option(PLOT_BUILD_GLFW "Build the GLFW adapter and demo" OFF)
option(PLOT_BUILD_IMGUI "Build the Dear ImGui adapter and demo" OFF)
option(PLOT_BUILD_QT6 "Build the Qt6 adapter and demo" OFF)
option(PLOT_BUILD_GTK4 "Build the GTK4 adapter and demo" OFF)

# Apply the project warning set to a first-party target. Warnings are never
# suppressed per file.
function(plot_apply_warnings target)
  if(MSVC)
    target_compile_options(${target} PRIVATE /W4 /permissive-)
  else()
    target_compile_options(${target} PRIVATE
      -Wall
      -Wextra
      -Wpedantic
      -Wconversion
      -Wshadow)
  endif()
endfunction()