can't make www/linux-f10-flashplugin10

[Jamie Griffin]

Hi, i'm trying to build the www/linux-f10-flashplugin port and i'm 
getting the following error on make:

"/usr/ports/Mk/bsd.linux-apps.mk", line 79: Malformed conditional 
($LINUX_DIST_SUFFIX}=="")
"/usr/ports/Mk/bsd.linux-apps.mk", line 145: Malformed conditional 
($LINUX_DIST_SUFFIX}=="-f10")
"/usr/ports/Mk/bsd.linux-apps.mk", line 171: Malformed conditional 
($LINUX_DIST_SUFFIX}=="")
"/usr/ports/Mk/bsd.linux-apps.mk", line 173: Malformed conditional 
($LINUX_DIST_SUFFIX}=="-f8")
"/usr/ports/Mk/bsd.linux-apps.mk", line 421: Malformed conditional 
($LINUX_DIST_SUFFIX}=="")
"/usr/ports/Mk/bsd.linux-apps.mk", line 459: Malformed conditional 
($LINUX_DIST_SUFFIX}=="-f8")
"/usr/ports/Mk/bsd.linux-apps.mk", line 461: if-less else
"/usr/ports/Mk/bsd.linux-apps.mk", line 463: if-less endif
"/usr/ports/Mk/bsd.linux-apps.mk", line 477: Malformed conditional 
($LINUX_DIST_SUFFIX}=="-f8")
"/usr/ports/Mk/bsd.linux-apps.mk", line 479: if-less else
"/usr/ports/Mk/bsd.linux-apps.mk", line 481: if-less endif
Error expanding embedded variable.

I don't know what this means and i'm not sure how to fix it. Can anyone 
help?

I'm using FreeBSD 7.2, my ports tree is up to date (did it earlier 
today). I did have flashplugin 9 installed with the linux-f4-core, but 
i've removed this, installed the f10-core and then started having 
problems with the flashplugin.

Thanks in advance for any advice/help.

Jamie