error building print/sile

[Mandacarú Cascavel <mancasc%yahoo.com.br@localhost>]

Hi, Friends.

Thank you for readily updating pkgsrc/print/sile to the new version 
0.12.2. Unhappily I am getting an error when building the package:


checking for required Lua library linenoise... found
checking for required Lua library lpeg... found
checking for required Lua library zlib... found
checking for required Lua library cliargs... found
checking for required Lua library epnf... found
checking for required Lua library lxp... found
checking for required Lua library lfs... found
checking for required Lua library repl... found
checking for required Lua library ssl... found
checking for required Lua library socket... found
checking for required Lua library lua-utf8... found
checking for required Lua library pl... found
checking for required Lua library std... found
checking for required Lua library vstruct... found
./configure: 16205: Syntax error: Bad substitution
*** Error code 2

Stop.
make[1]: stopped in /usr/pkgsrc/print/sile
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/print/sile

Thanks in advance.

Cascavel