In order to build deterministic binaries, we need to sort the wildcard expansion
so the libraries are linked in the same order each time. This fixes reproducibility
issues within syslinux builds.

Upstream-Status: Pending
RP 2021/3/1

Index: syslinux-6.04-pre2/mk/lib.mk
===================================================================
--- syslinux-6.04-pre2.orig/mk/lib.mk
+++ syslinux-6.04-pre2/mk/lib.mk
@@ -130,8 +130,8 @@ LIBENTRY_OBJS = \
 	exit.o
 
 LIBGCC_OBJS = \
-	  $(patsubst $(com32)/lib/%.c,%.o,$(wildcard $(com32)/lib/$(ARCH)/libgcc/*.c)) \
-	  $(patsubst $(com32)/lib/%.S,%.o,$(wildcard $(com32)/lib/$(ARCH)/libgcc/*.S))
+	  $(sort $(patsubst $(com32)/lib/%.c,%.o,$(wildcard $(com32)/lib/$(ARCH)/libgcc/*.c))) \
+	  $(sort $(patsubst $(com32)/lib/%.S,%.o,$(wildcard $(com32)/lib/$(ARCH)/libgcc/*.S)))
 
 LIBCONSOLE_OBJS = \
 	\
