Build broken with some awk version after JDK-8244248

JDK-8244248 breaks build with old awk version (on AIX):
configure: Found potential Boot JDK using configure arguments
awk: 0602-521 There is a regular expression error.
invalid range expression
 The source line number is 1.
 The error context is
/version >>> \"[0-9\._\-a-zA-Z]+\"/ <<< {print $ 0; exit;}