Gnome Upgrade to 2.16 breaks due to ports/103610: portupgrade to icu 3.6 linker error

[Stacey Roberts]

Hello,
     In attempting to upgrade Gnome on a machine to Gnome-2.16, running portupgrade -rf
pkg-config\* completes complaining of one failure in glib20, which I've tracked down to
the above PR104610.

When manually trying to portupgrade glib20 one actually gets to see where this fails - in
upgrading icu:

/custrtrn/
---[OK] ---/custrtrn/Test_UChar_UTF32_API
---[OK] ---/custrtrn/Test_UChar_UTF8_API
---[OK] ---/custrtrn/Test_FromUTF8Lenient
---[OK] ---/custrtrn/Test_UChar_WCHART_API
---[OK] ---/custrtrn/Test_widestrs
cintltst in free(): error: page is already free
Abort trap (core dumped)
*** Error code 134

Stop in /usr/ports/devel/icu.

As a result, you end up with glib20 failing, and other ports with associated dependencies
not building due to this upgrade failure pretty early in "portupgrade -rf
pkg-config\*".

I have not submitted a PR - as PR103610 is actually logged with a status flag of "Open"
at the moment, but wanted to see if there are any known work-a-rounds in place, or
procedures that I can try, please.

Regards,

Stacey