*** ./builds/unix/configure.ORIG	Thu Jun 21 10:55:32 2018
--- ./builds/unix/configure	Thu Jun 21 10:55:59 2018
***************
*** 13416,13422 ****
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fvisibility=hidden compiler flag" >&5
  $as_echo_n "checking for -fvisibility=hidden compiler flag... " >&6; }
  orig_CFLAGS="${CFLAGS}"
! CFLAGS="${CFLAGS} -fvisibility=hidden"
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
  /* end confdefs.h.  */
  
--- 13416,13422 ----
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fvisibility=hidden compiler flag" >&5
  $as_echo_n "checking for -fvisibility=hidden compiler flag... " >&6; }
  orig_CFLAGS="${CFLAGS}"
! CFLAGS="${CFLAGS}"
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
  /* end confdefs.h.  */
  
There are no differences between the files.