--- Makefile.in	2023-07-15 23:41:56.000000000 +0800
+++ Makefile.in	2023-07-25 13:31:15.000000000 +0800
@@ -28,7 +28,7 @@
 LDFLAGS=@LDFLAGS@
 LDLIBS=@epoxy_LIBS@ @FFTW3_LIBS@ -lpthread
 TEST_LDLIBS=@epoxy_LIBS@ @SDL2_LIBS@ @benchmark_LIBS@ -lpthread
-DEMO_LDLIBS=@SDL2_image_LIBS@ -lrt -lpthread @libpng_LIBS@ @FFTW3_LIBS@
+DEMO_LDLIBS=@SDL2_image_LIBS@ -lpthread @libpng_LIBS@ @FFTW3_LIBS@
 SHELL=@SHELL@
 LIBTOOL=@LIBTOOL@ --tag=CXX
 RANLIB=ranlib