Add CP make variable

Originally committed as revision 22240 to svn://svn.ffmpeg.org/ffmpeg/trunk

Makefile

@@ -49,7 +49,7 @@ INSTALL_PROGS_TARGETS-$(CONFIG_SHARED) = install-libs
 all: $(FF_DEP_LIBS) $(PROGS) $(ALL_TARGETS-yes)
 
 $(PROGS): %$(EXESUF): %_g$(EXESUF)
-	cp -p $< $@
+	$(CP) $< $@
 	$(STRIP) $@
 
 SUBDIR_VARS := OBJS FFLIBS CLEANFILES DIRS TESTPROGS EXAMPLES SKIPHEADERS \

configure

@@ -2969,6 +2969,7 @@ YASM=$yasmexe
 YASMDEP=$yasmexe
 AR=$ar
 RANLIB=$ranlib
+CP=cp -p
 LN_S=$ln_s
 STRIP=$strip
 CPPFLAGS=$CPPFLAGS