CMakeLists.txt: rename option to match README.adoc

CMakeLists.txt

@@ -9,7 +9,7 @@ project (xK VERSION "${project_version}"
 	DESCRIPTION "IRC daemon, bot, TUI client and its web frontend" LANGUAGES C)
 
 # Options
-option (WANT_XF "Build the xF frontend" OFF)
+option (WITH_XF "Build the xF frontend" OFF)
 
 # Moar warnings
 set (CMAKE_C_STANDARD 99)
@@ -183,7 +183,7 @@ add_dependencies (xC replies xC-proto)
 target_link_libraries (xC PRIVATE ${xC_libraries})
 target_include_directories (xC PRIVATE ${Termo_INCLUDE_DIRS})
 
-if (WANT_XF)
+if (WITH_XF)
 	list (APPEND project_binaries xF)
 
 	find_package (Unistring REQUIRED)
@@ -255,7 +255,7 @@ install (DIRECTORY plugins/xC/
 	DESTINATION ${CMAKE_INSTALL_DATADIR}/xC/plugins)
 
 # Rasterize and install SVG icons
-if (WANT_XF AND WITH_X11)
+if (WITH_XF AND WITH_X11)
 	include (IconUtils)
 
 	set (icon_base ${PROJECT_BINARY_DIR}/icons)