diff -Nur dtkgui-5.4.13/src/src.pro dtkgui-5.4.13-new/src/src.pro
--- dtkgui-5.4.13/src/src.pro	2021-03-24 14:29:42.000000000 +0800
+++ dtkgui-5.4.13-new/src/src.pro	2021-05-05 17:31:38.943722934 +0800
@@ -9,6 +9,8 @@
 # don't link library
 QMAKE_CXXFLAGS += $$system(pkg-config --cflags-only-I librsvg-2.0)
 
+LIBS += -lglib-2.0
+
 INCLUDEPATH += \
     $$PWD/filedrag \
     $$PWD/kernel \