--- CMakeLists.txt.orig	2019-09-09 22:54:52.000000000 -0700
+++ CMakeLists.txt	2019-09-09 22:55:04.000000000 -0700
@@ -27,7 +27,7 @@
 find_package(Threads REQUIRED)
 find_package(PkgConfig REQUIRED)
 find_package(OpenGL REQUIRED)
-find_package(Boost COMPONENTS system filesystem signals REQUIRED)
+find_package(Boost COMPONENTS system filesystem REQUIRED)
 
 pkg_search_module(SDL2 REQUIRED sdl2)
 pkg_search_module(SDL2IMAGE REQUIRED SDL2_image>=2.0.0)