mkdir -p /usr/obj/usr/src/tmp/usr/share/snmp/defs
mkdir -p /usr/obj/usr/src/tmp/usr/share/snmp/mibs
mtree -deU -f /usr/src/etc/mtree/BSD.include.dist  -p /usr/obj/usr/src/tmp/usr/include >/dev/null
ln -sf /usr/src/sys /usr/obj/usr/src/tmp

--------------------------------------------------------------
>>> stage 1.1: legacy release compatibility shims
--------------------------------------------------------------
cd /usr/src; MAKEOBJDIRPREFIX=/usr/obj/usr/src/tmp  INSTALL="sh /usr/src/tools/install.sh"  PATH=/usr/obj/usr/src/tmp/legacy/usr/sbin:/usr/obj/usr/src/tmp/legacy/usr/bin:/usr/obj/usr/src/tmp/legacy/usr/games:/sbin:/bin:/usr/sbin:/usr/bin  WORLDTMP=/usr/obj/usr/src/tmp  MAKEFLAGS="-m /usr/src/tools/build/mk  -m /usr/src/share/mk" /usr/obj/usr/src/make.i386/make -f Makefile.inc1  DESTDIR=  BOOTSTRAPPING=501000  -DNO_HTML -DNO_INFO -DNO_LINT -DNO_MAN -DNO_NLS -DNO_PIC  -DNO_PROFILE -DNO_SHARED -DNO_CPU_CFLAGS -DNO_WARNS legacy
ERROR: Source upgrades from versions prior to 5.3 not supported.
*** Error code 1

Stop in /usr/src.
*** Error code 1

Stop in /usr/src.
*** Error code 1

Stop in /usr/src.
ERROR: Missing kernel configuration file(s) (PREMIERESSAI).
*** Error code 1

Stop in /usr/src.
*** Error code 1

Stop in /usr/src.
ERROR: Required proxy user is missing, see /usr/src/UPDATING.
*** Error code 1

Stop in /usr/src.
*** Error code 1

Stop in /usr/src.

*** The directory specified for the temporary root environment,
    /var/tmp/temproot, exists.  This can be a security risk if untrusted
    users have access to the system.

  Use 'd' to delete the old /var/tmp/temproot and continue
  Use 't' to select a new temporary root directory
  Use 'e' to exit mergemaster

  Default is to use /var/tmp/temproot as is

How should I deal with this? [Use the existing /var/tmp/temproot]
   *** Leaving /var/tmp/temproot intact

*** Creating the temporary root environment in /var/tmp/temproot
 *** /var/tmp/temproot ready for use
 *** Creating and populating directory structure in /var/tmp/temproot

"/usr/src/etc/Makefile", line 77: Could not find bsd.endian.mk
"/usr/src/etc/Makefile", line 78: Malformed conditional (${TARGET_ENDIANNESS} == "1234")
"/usr/src/etc/Makefile", line 78: Need an operator
"/usr/src/etc/Makefile", line 81: if-less elif
"/usr/src/etc/Makefile", line 81: Need an operator
"/usr/src/etc/Makefile", line 84: if-less else
"/usr/src/etc/Makefile", line 84: Need an operator
"/usr/src/etc/Makefile", line 87: if-less endif
"/usr/src/etc/Makefile", line 87: Need an operator
make: fatal errors encountered -- cannot continue

  *** FATAL ERROR: Cannot 'cd' to /usr/src/etc and install files to
      the temproot environment

#