port problems after update to DragonFly_Stable

[Marco Righele <marco_righele@xxxxxxxx>]

Greetings,

I installed DFBSD to a new box, using a "stable" iso (sept.13 more or less).
Then I updated kernel and world to the DragonFly_Stable tag.
After that I started having a lot of troubles installing port.
For example, I can't compile any perl related
port (or the perl port itself).
Trying to compile lang/perl5 gives me the following output:

"/usr/ports/Mk/bsd.port.mk", line 1109: warning: String comparison operator should be either == or !=
"/usr/ports/Mk/bsd.port.mk", line 1109: Malformed conditional (${PERL_LEVEL} >= 500600)
"/usr/ports/Mk/bsd.port.mk", line 1109: Need an operator
"/usr/ports/Mk/bsd.port.mk", line 1115: warning: String comparison operator should be either == or !=
"/usr/ports/Mk/bsd.port.mk", line 1115: Malformed conditional (${PERL_LEVEL} >= 500800)
"/usr/ports/Mk/bsd.port.mk", line 1115: Need an operator
"/usr/ports/Mk/bsd.port.mk", line 1124: warning: String comparison operator should be either == or !=
"/usr/ports/Mk/bsd.port.mk", line 1124: Malformed conditional (${PERL_LEVEL} < 500600)
"/usr/ports/Mk/bsd.port.mk", line 1124: Need an operator
"/usr/ports/Mk/bsd.port.mk", line 1127: if-less else
"/usr/ports/Mk/bsd.port.mk", line 1127: Need an operator
"/usr/ports/Mk/bsd.port.mk", line 1130: if-less endif
"/usr/ports/Mk/bsd.port.mk", line 1130: Need an operator
"/usr/ports/Mk/bsd.port.mk", line 1194: if-less endif
"/usr/ports/Mk/bsd.port.mk", line 1194: Need an operator
"/usr/share/mk/bsd.port.mk", line 38: if-less else
"/usr/share/mk/bsd.port.mk", line 38: Need an operator
"/usr/share/mk/bsd.port.mk", line 100: if-less endif
"/usr/share/mk/bsd.port.mk", line 100: Need an operator
"/usr/ports/Mk/bsd.port.mk", line 1531: warning: String comparison operator should be either == or !=
"/usr/ports/Mk/bsd.port.mk", line 1531: Malformed conditional (${PERL_LEVEL} >= 500600)
"/usr/ports/Mk/bsd.port.mk", line 1531: Need an operator
"/usr/share/mk/bsd.port.mk", line 38: if-less else
"/usr/share/mk/bsd.port.mk", line 38: Need an operator
"/usr/share/mk/bsd.port.mk", line 100: if-less endif
"/usr/share/mk/bsd.port.mk", line 100: Need an operator
make: fatal errors encountered -- cannot continue

Any idea of what I could do to fix it ?
Thanks in advance