[foreign] RFR 8210992: LibEnumsTest fails on Linux with "fatal error: 'limits.h' file not found"

[Sundararajan Athijegannathan]

Please review.

Bug: https://bugs.openjdk.java.net/browse/JDK-8210992
Webrev: http://cr.openjdk.java.net/~sundar/8210992/webrev.00/

Background:

http://mail.openjdk.java.net/pipermail/panama-dev/2018-September/002740.html

Thanks,
-Sundar