diff --git a/CMakeLists.txt b/CMakeLists.txt
index 048dd44a..e3f9cb63 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,6 +22,7 @@ endif()
 
 if(ENABLE_LTO)
 	add_compile_options(-O3 -flto)
+	add_link_options(-flto)
 	set(CMAKE_AR "gcc-ar")
 	set(CMAKE_C_ARCHIVE_CREATE "<CMAKE_AR> qcs <TARGET> <LINK_FLAGS> <OBJECTS>")
 	set(CMAKE_C_ARCHIVE_FINISH   true)
diff --git a/src/libui_sdl/libui/unix/CMakeLists.txt b/src/libui_sdl/libui/unix/CMakeLists.txt
index c69081ee..39f6c0a0 100644
--- a/src/libui_sdl/libui/unix/CMakeLists.txt
+++ b/src/libui_sdl/libui/unix/CMakeLists.txt
@@ -65,7 +65,7 @@ macro(_handle_static)
 		OUTPUT ${_oname}
 		DEPENDS ${_LIBUINAME}
 		COMMAND
-			ld -r --whole-archive ${_aname} -o ${_oname}
+			${CMAKE_LINKER} -r --whole-archive ${_aname} -o ${_oname}
 		COMMAND
 			objcopy --localize-hidden ${_oname}
 		COMMENT "Removing hidden symbols")
diff --git a/src/libui_sdl/main.cpp b/src/libui_sdl/main.cpp
index 9dea9f17..80b86651 100644
--- a/src/libui_sdl/main.cpp
+++ b/src/libui_sdl/main.cpp
@@ -20,6 +20,7 @@
 #include <time.h>
 #include <stdio.h>
 #include <string.h>
+#include <string>
 
 #ifndef __WIN32__
 #include <glib.h>