java/openjdk11 13.0-CURRENT build fails on configure

[Sérgio Siegrist]

...
checking for output-sync value... none
checking if find supports -delete... yes
checking what type of tar was found... bsd
checking that grep (/usr/bin/grep) -Fx handles empty lines in the 
pattern list correctly... configure: error: grep does not handle -Fx 
correctly.
configure exiting with result code 1
===>  Script "configure" failed unexpectedly.
...

Can it be fixed? Thanks