--- libs/captainslog/CMakeLists.txt.orig	2020-02-14 15:15:30 UTC
+++ libs/captainslog/CMakeLists.txt
@@ -31,13 +31,6 @@ elseif("${CMAKE_SYSTEM}" MATCHES "Darwin")
     list(APPEND CAPTN_SRC src/captnmessage_win32.c)
 elseif("${CMAKE_SYSTEM}" MATCHES "Darwin")
     list(APPEND CAPTN_SRC src/captnmessage_macos.m)
-else()
-    # TODO make a null version so builds can be done without any dependencies.
-    find_package(GTK3 REQUIRED gtk)
-    if(GTK3_FOUND)
-        message("Building GTK3 version.")
-        list(APPEND CAPTN_SRC src/captnmessage_gtk.c)
-    endif()
 endif()
 
 add_library(captnlog STATIC ${CAPTN_SRC} src/captainslog.h)