diff -u coreutils-8.31/Makefile.in.orig coreutils-8.31/Makefile.in
--- coreutils-8.31/Makefile.in.orig	2019-03-10 20:07:54.000000000 -0400
+++ coreutils-8.31/Makefile.in	2019-08-16 21:05:55.582400200 -0400
@@ -1850,7 +1850,7 @@
 am__EXEEXT_1 = src/arch$(EXEEXT) src/coreutils$(EXEEXT) \
 	src/hostname$(EXEEXT)
 am__EXEEXT_2 = src/chroot$(EXEEXT) src/df$(EXEEXT) src/hostid$(EXEEXT) \
-	src/libstdbuf.so$(EXEEXT) src/nice$(EXEEXT) src/pinky$(EXEEXT) \
+	src/libstdbuf.so src/nice$(EXEEXT) src/pinky$(EXEEXT) \
 	src/stdbuf$(EXEEXT) src/stty$(EXEEXT) src/timeout$(EXEEXT) \
 	src/uptime$(EXEEXT) src/users$(EXEEXT) src/who$(EXEEXT)
 am__EXEEXT_3 = src/[$(EXEEXT) src/b2sum$(EXEEXT) src/base64$(EXEEXT) \
@@ -8435,8 +8435,8 @@
 src/src_libstdbuf_so-libstdbuf.$(OBJEXT): src/$(am__dirstamp) \
 	src/$(DEPDIR)/$(am__dirstamp)
 
-src/libstdbuf.so$(EXEEXT): $(src_libstdbuf_so_OBJECTS) $(src_libstdbuf_so_DEPENDENCIES) $(EXTRA_src_libstdbuf_so_DEPENDENCIES) src/$(am__dirstamp)
-	@rm -f src/libstdbuf.so$(EXEEXT)
+src/libstdbuf.so: $(src_libstdbuf_so_OBJECTS) $(src_libstdbuf_so_DEPENDENCIES) $(EXTRA_src_libstdbuf_so_DEPENDENCIES) src/$(am__dirstamp)
+	@rm -f src/libstdbuf.so
 	$(AM_V_CCLD)$(src_libstdbuf_so_LINK) $(src_libstdbuf_so_OBJECTS) $(src_libstdbuf_so_LDADD) $(LIBS)
 src/link.$(OBJEXT): src/$(am__dirstamp) src/$(DEPDIR)/$(am__dirstamp)