(urgent) RFR: JDK-8200409: jdk11 nightly solaris sparc build failure

[Erik Joelsson]

The removal of mapfiles didn't completely work out. On Solaris we now 
get the following build error:

"/localhome/erik/jdk/open/src/java.base/solaris/native/libjsig/jsig.c", 
line 181: error: redeclaration must have the same or more restrictive 
linker scoping: signal
"/localhome/erik/jdk/open/src/java.base/solaris/native/libjsig/jsig.c", 
line 186: error: redeclaration must have the same or more restrictive 
linker scoping: sigset
"/localhome/erik/jdk/open/src/java.base/solaris/native/libjsig/jsig.c", 
line 203: error: redeclaration must have the same or more restrictive 
linker scoping: sigaction
cc: acomp failed for 
/localhome/erik/jdk/open/src/java.base/solaris/native/libjsig/jsig.c

As a quick fix I have reverted the mapfile removal for libjsig on 
Solaris. With the following changes the build works again. Hopefully 
Magnus will be able to figure out the proper fix next week (after the 
Swedish Easter holidays).

Webrev: http://cr.openjdk.java.net/~erikj/8200409/webrev.01/index.html

Bug: https://bugs.openjdk.java.net/browse/JDK-8200409

Please note that I'm on vacation today and will soon get in a car for a 
long drive. I urge someone else to pick this up and push it as soon as 
it is reviewed (or find a better solution) so that a promoted build can 
be produced this week.

/Erik