add CMake build support

CMakeLists.txt

@@ -0,0 +1,77 @@
+cmake_minimum_required(VERSION 3.20)
+
+project(
+  davegnukem
+  LANGUAGES CXX
+  VERSION 1.0.3)
+
+set(CMAKE_CXX_STANDARD 14)
+
+include(GNUInstallDirs)
+include(FetchContent)
+
+# default to same version for data repo
+set(DATA_TAG
+    ${PROJECT_VERSION}
+    CACHE STRING "default")
+
+FetchContent_Declare(
+  data
+  GIT_REPOSITORY https://github.com/davidjoffe/gnukem_data
+  GIT_TAG ${DATA_TAG})
+
+# default to same version for datasrc repo
+set(DATASRC_TAG
+    ${PROJECT_VERSION}
+    CACHE STRING "default")
+
+FetchContent_Declare(
+  datasrc
+  GIT_REPOSITORY https://github.com/davidjoffe/gnukem_datasrc
+  GIT_TAG ${DATASRC_TAG})
+
+FetchContent_MakeAvailable(data datasrc)
+
+add_subdirectory(src)
+
+install(FILES debian/appstream/com.djoffe.davegnukem.metainfo.xml
+        DESTINATION ${CMAKE_INSTALL_DATADIR}/metainfo)
+install(FILES debian/desktop/davegnukem.desktop
+        DESTINATION ${CMAKE_INSTALL_DATADIR}/applications)
+install(DIRECTORY debian/icons DESTINATION ${CMAKE_INSTALL_DATADIR})
+install(FILES HISTORY.txt README.md DESTINATION ${CMAKE_INSTALL_DOCDIR})
+
+install(DIRECTORY locale DESTINATION ${CMAKE_INSTALL_DATADIR}/${PROJECT_NAME})
+
+install(
+  DIRECTORY ${data_SOURCE_DIR}/
+  DESTINATION ${CMAKE_INSTALL_DATADIR}/${PROJECT_NAME}
+  PATTERN .git EXCLUDE
+  PATTERN .gitignore EXCLUDE
+  PATTERN README.md EXCLUDE PERMISSIONS OWNER_WRITE OWNER_READ GROUP_READ
+                                        WORLD_READ)
+install(FILES ${data_SOURCE_DIR}/README.md
+        DESTINATION ${CMAKE_INSTALL_DOCDIR}-data)
+
+install(
+  DIRECTORY ${datasrc_SOURCE_DIR}/
+  DESTINATION ${CMAKE_INSTALL_DATADIR}/${PROJECT_NAME}
+  PATTERN .git EXCLUDE
+  PATTERN .gitignore EXCLUDE
+  PATTERN README.md EXCLUDE
+  PATTERN "*.psd" EXCLUDE)
+install(FILES ${datasrc_SOURCE_DIR}/README.md
+        DESTINATION ${CMAKE_INSTALL_DOCDIR}-datasrc)
+
+file(READ debian/davegnukem.6 TEXT)
+string(REPLACE "VERSION" "${PROJECT_VERSION}" TEXT "${TEXT}")
+file(
+  GENERATE
+  OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/davegnukem.6
+  CONTENT "${TEXT}")
+set_property(
+  DIRECTORY
+  APPEND
+  PROPERTY CMAKE_CONFIGURE_DEPENDS main.cpp)
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/davegnukem.6
+        DESTINATION ${CMAKE_INSTALL_MANDIR}/man6)

src/CMakeLists.txt

@@ -0,0 +1,24 @@
+file(GLOB_RECURSE HEADERS "*.h")
+file(GLOB SOURCES "*.cpp")
+file(GLOB SOURCES_LOC "localization/*.cpp")
+file(GLOB SOURCES_SDL "sdl/*.cpp")
+
+if(WIN32)
+  file(GLOB SOURCES_WIN "win32/*.cpp")
+  list(APPEND SOURCES ${SOURCES_WIN})
+endif()
+
+find_package(SDL2 REQUIRED)
+find_package(SDL2_ttf REQUIRED)
+find_package(SDL2_image REQUIRED)
+find_package(SDL2_mixer REQUIRED)
+
+add_executable(${PROJECT_NAME} WIN32 MACOSX_BUNDLE
+               ${HEADERS} ${SOURCES} ${SOURCES_LOC} ${SOURCES_SDL})
+target_compile_definitions(
+  ${PROJECT_NAME}
+  PRIVATE DATA_DIR="${CMAKE_INSTALL_FULL_DATADIR}/${PROJECT_NAME}")
+target_link_libraries(
+  ${PROJECT_NAME} PRIVATE SDL2::SDL2 SDL2_ttf::SDL2_ttf SDL2_image::SDL2_image
+                          SDL2_mixer::SDL2_mixer)
+install(TARGETS ${PROJECT_NAME})