build - Do not use cp -a

* The -a option to cp was added in November, unbreak installworld for those
  running a world built prior to November 2012.

diff --git a/Makefile.inc1 b/Makefile.inc1
index 07d1f57..d282ad4 100644 (file)
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -1058,12 +1058,12 @@ backupworld:
        @rm -rf ${WORLD_BACKUP}/sbin ${WORLD_BACKUP}/bin \
                ${WORLD_BACKUP}/usr.sbin ${WORLD_BACKUP}/usr.bin \
                ${WORLD_BACKUP}/usr.libexec
-       cp -a /bin ${WORLD_BACKUP}/bin
-       cp -a /sbin ${WORLD_BACKUP}/sbin
-       cp -a /usr/bin ${WORLD_BACKUP}/usr.bin
-       cp -a /usr/lib ${WORLD_BACKUP}/usr.lib
-       cp -a /usr/sbin ${WORLD_BACKUP}/usr.sbin
-       cp -a /usr/libexec ${WORLD_BACKUP}/usr.libexec
+       cp -RpP /bin ${WORLD_BACKUP}/bin
+       cp -RpP /sbin ${WORLD_BACKUP}/sbin
+       cp -RpP /usr/bin ${WORLD_BACKUP}/usr.bin
+       cp -RpP /usr/lib ${WORLD_BACKUP}/usr.lib
+       cp -RpP /usr/sbin ${WORLD_BACKUP}/usr.sbin
+       cp -RpP /usr/libexec ${WORLD_BACKUP}/usr.libexec
 
 backupworld-auto:
        @mkdir -p ${AUTO_BACKUP}
@@ -1071,12 +1071,12 @@ backupworld-auto:
        @rm -rf ${AUTO_BACKUP}/sbin ${AUTO_BACKUP}/bin \
                ${AUTO_BACKUP}/usr.sbin ${AUTO_BACKUP}/usr.bin \
                ${AUTO_BACKUP}/usr.libexec
-       cp -a /bin ${AUTO_BACKUP}/bin
-       cp -a /sbin ${AUTO_BACKUP}/sbin
-       cp -a /usr/bin ${AUTO_BACKUP}/usr.bin
-       cp -a /usr/lib ${AUTO_BACKUP}/usr.lib
-       cp -a /usr/sbin ${AUTO_BACKUP}/usr.sbin
-       cp -a /usr/libexec ${AUTO_BACKUP}/usr.libexec
+       cp -RpP /bin ${AUTO_BACKUP}/bin
+       cp -RpP /sbin ${AUTO_BACKUP}/sbin
+       cp -RpP /usr/bin ${AUTO_BACKUP}/usr.bin
+       cp -RpP /usr/lib ${AUTO_BACKUP}/usr.lib
+       cp -RpP /usr/sbin ${AUTO_BACKUP}/usr.sbin
+       cp -RpP /usr/libexec ${AUTO_BACKUP}/usr.libexec
 
 restoreworld:
 .if !(exists(${WORLD_BACKUP}/sbin) && exists(${WORLD_BACKUP}/bin) && \