Removed GNUism in makefile

The --preserve=timestamps is a gnu cp extension, and thus not
available on all our platforms. Replaced by equivalent tar hack.
Signed-off-by: Fridrich Štrba <fridrich.strba@bluewin.ch>
(cherry picked from commit a22d8e9fbecfe6f2febdf4f85892f00e48ad0b79)
Signed-off-by: Andras Timar <timar74@gmail.com>
Signed-off-by: Bjoern Michaelsen <bjoern.michaelsen@gmail.com>

nlpsolver/makefile.mk

@@ -46,7 +46,7 @@ PATCH_FILES=nlpsolver-0.9.patch
 
 ANT_FLAGS+=-Dplatforms.JDK_1.5.home=$(JAVA_HOME) -Doffice.program.dir=$(SOLARBINDIR)
 
-CONFIGURE_ACTION=cp -rv --preserve=timestamps ../../../../locale src/
+CONFIGURE_ACTION=(cd ../../../../locale && $(GNUTAR) -cf - .) | (cd src/ && $(GNUTAR) xf -)
 
 .IF "$(JAVACISGCJ)"=="yes"
 JAVA_HOME=