gunits @2.22_0: currency.units: No such file or directory

[saj (Saj Goonatilleke)]

Regression. Currency unit conversions are broken. Other unit conversions should still work.

On gunits@2.22_0:

% gunits
gunits: Unable to read units file '/opt/local/share/units/currency.units': No such file or directory
gunits:   file was included at line 5626 of file '/opt/local/share/units/definitions.units'
3399 units, 113 prefixes, 120 nonlinear units

% readlink /opt/local/share/units/currency.units
/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_math_gunits/gunits/work/destroot/opt/local/var/lib/units/currency.units

On gunits@2.21_0:

% gunits
Currency exchange rates from FloatRates (USD base) on 2023-08-31 
3673 units, 109 prefixes, 114 nonlinear units

You have: 1 USD
You want: AUD
	* 1.5462832
	/ 0.64671206

% readlink /opt/local/share/units/currency.units
/opt/local/var/lib/units/currency.units

From upstream:

GNU units NEWS - User visible changes.
Copyright (C) 1996, 1997, 1999-2007, 2010-2020, 2022
Free Software Foundation, Inc.

Version 2.22 - 4 September 2022 (bug fix release)
[...] 
* Do not update currency.units at build

[ryandesign (Ryan Carsten Schmidt)]

In 2f84a15367392b183f5521136c3024d5dbce1761/macports-ports (master):

gunits: Fix symlink to currency.units

Closes: #68099

[ryandesign (Ryan Carsten Schmidt)]

And I sent the fix to the developer by email.