diff --git a/lib/libsys/Makefile.sys b/lib/libsys/Makefile.sys
--- a/lib/libsys/Makefile.sys
+++ b/lib/libsys/Makefile.sys
@@ -27,30 +27,36 @@
 .include "${LIBSYS_SRCTOP}/x86/Makefile.sys"
 .endif
 
-SRCS+= clock_gettime.c gettimeofday.c __vdso_gettimeofday.c
-
-# Sources common to both syscall interfaces:
-SRCS+=	\
+SRCS+= \
+	POSIX2x_Fork.c \
 	__error.c \
 	__getosreldate.c \
+	__vdso_gettimeofday.c \
+	brk.c \
+	clock_gettime.c \
+	closefrom.c \
+	compat-stub.c \
+	creat.c \
+	getdents.c \
 	getpagesize.c \
 	getpagesizes.c \
-	interposing_table.c
-
-SRCS+= getdents.c lstat.c mknod.c stat.c
-
-SRCS+=	creat.c
-SRCS+=	lockf.c wait.c wait3.c waitpid.c waitid.c
-SRCS+=	recv.c recvmmsg.c send.c sendmmsg.c
-
-SRCS+= brk.c
-SRCS+= closefrom.c
-SRCS+= pipe.c
-SRCS+= shm_open.c
-SRCS+= vadvise.c
-SRCS+= POSIX2x_Fork.c
-
-SRCS+=	compat-stub.c
+	gettimeofday.c \
+	interposing_table.c \
+	lockf.c \
+	lstat.c \
+	mknod.c \
+	pipe.c \
+	recv.c \
+	recvmmsg.c \
+	send.c \
+	sendmmsg.c \
+	shm_open.c \
+	stat.c \
+	vadvise.c \
+	wait.c \
+	wait3.c \
+	waitid.c \
+	waitpid.c
 
 .if ${LIB} == "c"
 # Trapping stubs in dynamic libc to be filtered by libsys.