--- mupdf-1.11-source/Makerules
+++ mupdf-1.11-source/Makerules
@@ -158,6 +158,8 @@
 SYS_JBIG2DEC_LIBS := -ljbig2dec
 SYS_LIBJPEG_LIBS := -ljpeg
 SYS_ZLIB_LIBS := -lz
+SYS_GLFW_CFLAGS = $(shell pkg-config --cflags glfw3 gl)
+SYS_GLFW_LIBS = $(shell pkg-config --libs glfw3 gl)
 
 endif