rapidjson: simplify install commands

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Tested-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/rapidjson/rapidjson.mk

@@ -12,18 +12,7 @@ RAPIDJSON_INSTALL_TARGET = NO
 RAPIDJSON_INSTALL_STAGING = YES
 
 define RAPIDJSON_INSTALL_STAGING_CMDS
-	$(INSTALL) -m 0755 -d $(STAGING_DIR)/usr/include/rapidjson
-	$(INSTALL) -m 0755 -d $(STAGING_DIR)/usr/include/rapidjson/internal
-	$(INSTALL) -m 0755 -d $(STAGING_DIR)/usr/include/rapidjson/error
-	$(INSTALL) -m 0755 -d $(STAGING_DIR)/usr/include/rapidjson/msinttypes
-	$(INSTALL) -m 0644 $(@D)/include/rapidjson/*.h \
-		$(STAGING_DIR)/usr/include/rapidjson
-	$(INSTALL) -m 0644 $(@D)/include/rapidjson/internal/*.h \
-		$(STAGING_DIR)/usr/include/rapidjson/internal
-	$(INSTALL) -m 0644 $(@D)/include/rapidjson/error/*.h \
-		$(STAGING_DIR)/usr/include/rapidjson/error
-	$(INSTALL) -m 0644 $(@D)/include/rapidjson/msinttypes/*.h \
-		$(STAGING_DIR)/usr/include/rapidjson/msinttypes
+	cp -dpfr $(@D)/include/* $(STAGING_DIR)/usr/include
 endef
 
 $(eval $(generic-package))