[libpng16] $(CP) is now used alongside $(RM_F). Also, use 'copy' instead
of 'cp' where applicable, and applied other minor makefile changes.
diff --git a/scripts/makefile.ne12bsd b/scripts/makefile.ne12bsd
index 1907735..85ae6e8 100644
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -39,7 +39,7 @@
# see scripts/pnglibconf.mak for more options
pnglibconf.h: scripts/pnglibconf.h.prebuilt
- cp scripts/pnglibconf.h.prebuilt $@
+ cp $< $@
pngtest.o: pngtest.c
${CC} -c ${CPPFLAGS} ${CFLAGS} ${.ALLSRC} -o ${.TARGET}