Support build & install via CMake

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.2.0 FATAL_ERROR)
+
+project(Wander VERSION 3.0.0 LANGUAGES C)
+
+find_program(NROFF nroff
+	DOC "Path to nroff for building documentation")
+if(NOT NROFF)
+	message(WARNING "Could not find nroff; documentation will not be built")
+endif(NOT NROFF)
+
+set(WANDER_SOURCES
+	wand1.c
+	wand2.c
+	wanddef.h
+	wandglb.c
+	wandsys.c)
+set(WANDER_A3
+	a3.misc
+	a3.wrld)
+set(WANDER_CASTLE
+	castle.misc
+	castle.wrld)
+set(WANDER_LIBRARY
+	library.misc
+	library.wrld)
+set(WANDER_TUT
+	tut.misc
+	tut.wrld)
+set(WANDER_DOCS
+	READ_ME
+	READ_ME_TOO
+	README.md
+	WanderExportReadMe.txt)
+
+add_executable(wander ${WANDER_SOURCES})
+
+if(NROFF)
+	# There was a Makefile rule for WanderExportReadMe.txt, but all it
+	# did was copy & paste a dependency that doesn't exist. Go figure.
+	add_custom_command(OUTPUT Wander.txt
+		COMMAND ${NROFF} ${Wander_SOURCE_DIR}/wander.nr > ${Wander_BINARY_DIR}/Wander.txt
+		MAIN_DEPENDENCY wander.nr
+		DEPENDS mac
+		WORKING_DIRECTORY ${Wander_SOURCE_DIR})
+	add_custom_command(OUTPUT WanderMisc.txt
+		COMMAND ${NROFF} ${Wander_SOURCE_DIR}/misc.nr > ${Wander_BINARY_DIR}/WanderMisc.txt
+		MAIN_DEPENDENCY misc.nr
+		DEPENDS mac
+		WORKING_DIRECTORY ${Wander_SOURCE_DIR})
+	add_custom_command(OUTPUT WanderWrld.txt
+		COMMAND ${NROFF} ${Wander_SOURCE_DIR}/wrld.nr > ${Wander_BINARY_DIR}/WanderWrld.txt
+		MAIN_DEPENDENCY wrld.nr
+		DEPENDS mac
+		WORKING_DIRECTORY ${Wander_SOURCE_DIR})
+	add_custom_target(doc ALL
+		DEPENDS Wander.txt WanderMisc.txt WanderWrld.txt)
+	set(WANDER_DOCS
+		${WANDER_DOCS}
+		${Wander_BINARY_DIR}/Wander.txt
+		${Wander_BINARY_DIR}/WanderMisc.txt
+		${Wander_BINARY_DIR}/WanderWrld.txt)
+else(NROFF)
+	set(WANDER_DOCS
+		${WANDER_DOCS}
+		Wander.txt
+		WanderMisc.txt
+		WanderWrld.txt)
+endif(NROFF)
+
+install(TARGETS wander RUNTIME DESTINATION bin)
+install(FILES ${WANDER_A3} DESTINATION share/wander/a3)
+install(FILES ${WANDER_CASTLE} DESTINATION share/wander/castle)
+install(FILES ${WANDER_LIBRARY} DESTINATION share/wander/library)
+install(FILES ${WANDER_TUT} DESTINATION share/wander/tut)
+install(FILES ${WANDER_DOCS} DESTINATION share/doc/wander)
+
+set(CPACK_PACKAGE_VENDOR "Jared Miller")
+set(CPACK_PACKAGE_VERSION_MAJOR ${Wander_VERSION_MAJOR})
+set(CPACK_PACKAGE_VERSION_MINOR ${Wander_VERSION_MINOR})
+set(CPACK_PACKAGE_VERSION_PATCH ${Wander_VERSION_PATCH})
+#set(CPACK_PACKAGE_DESCRIPTION_FILE )
+set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Fantasy story tool")
+#set(CPACK_PACKAGE_ICON )
+#set(CPACK_RESOURCE_FILE_LICENSE )
+#set(CPACK_RESOURCE_FILE_README )
+#set(CPACK_RESOURCE_FILE_WELCOME )
+include(CPack)