Hello Please review this added sanity check for the Solaris assembler (as).
'as' is not installed by default on Solaris, and it would be better to fail fast if missing.
Bug report: https://bugs.openjdk.java.net/browse/JDK-8081676 Webrev: http://cr.openjdk.java.net/~tbell/8081676/Note: This is a change to toolchain.m4. I did not include the generated-configure.sh files in the webrev, but I will regenerate and push them as well.
Thank you in advance- Tim
