hg: jdk/sandbox: Fixing PIC-flag issues, and all remaining differences on linux_x64.

[magnus.ihse.bursie at oracle.com]

Changeset: 97b2b2de66f2
Author:    ihse
Date:      2018-02-20 12:05 +0100
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/97b2b2de66f2

Fixing PIC-flag issues, and all remaining differences on linux_x64.

! make/autoconf/flags-cflags.m4
! make/autoconf/flags-ldflags.m4
! make/autoconf/flags.m4
! make/autoconf/libraries.m4