File lilypond-missing-lgc.patch of Package lilypond

Index: b/lily/GNUmakefile
===================================================================
--- a/lily/GNUmakefile	2022-11-27 14:28:56.000000000 +0200
+++ b/lily/GNUmakefile	2022-12-04 15:24:29.435257154 +0200
@@ -14,7 +14,7 @@ SUBDIRS = include
 include $(depth)/make/lilypond.make
 
 FLOWER_LIB = $(depth)/flower/$(outdir)/library.a
-LDLIBS = $(FLOWER_LIB) $(CONFIG_LIBS)
+LDLIBS = $(FLOWER_LIB) $(CONFIG_LIBS) -lgc -lpthread -ldl
 
 EXECUTABLE = $(outdir)/$(NAME)$(program_suffix)