Use "pwd -P" to get the current physical path.

It is a portable version of the realpath(1) utility that you can find on
Mac OS X and FreeBSD (see also The Open Group Base Specifications Issue
6, IEEE Std 1003.1).

Without the -P flag, pwd(1) might return different values when the
current path contains one or more symlinks, depending on how you got
into the current directory.

In simplenode.runner, this may cause PIPE_DIR to have different values
on each use, which will make it impossible to connect to the running
node unless you guess the correct path yourself.

priv/templates/simplenode.erl.script

@@ -20,7 +20,7 @@ unset POSIX_SHELL
 ## start_clean.boot file available in $ROOTDIR/release/VSN.
 
 # Determine the abspath of where this script is executing from.
-ERTS_BIN_DIR=$(cd ${0%/*} && pwd)
+ERTS_BIN_DIR=$(cd ${0%/*} && pwd -P)
 
 # Now determine the root directory -- this script runs from erts-VSN/bin,
 # so we simply need to strip off two dirs from the end of the ERTS_BIN_DIR

priv/templates/simplenode.runner

@@ -15,7 +15,7 @@ fi
 # clear it so if we invoke other scripts, they run as ksh
 unset POSIX_SHELL
 
-RUNNER_SCRIPT_DIR=$(cd ${0%/*} && pwd)
+RUNNER_SCRIPT_DIR=$(cd ${0%/*} && pwd -P)
 
 CALLER_DIR=$PWD
 

test/upgrade_project/rel/files/dummy

@@ -2,7 +2,7 @@
 # -*- tab-width:4;indent-tabs-mode:nil -*-
 # ex: ts=4 sw=4 et
 
-RUNNER_SCRIPT_DIR=$(cd ${0%/*} && pwd)
+RUNNER_SCRIPT_DIR=$(cd ${0%/*} && pwd -P)
 
 RUNNER_BASE_DIR=${RUNNER_SCRIPT_DIR%/*}
 RUNNER_ETC_DIR=$RUNNER_BASE_DIR/etc

test/upgrade_project/rel/files/erl

@@ -10,7 +10,7 @@
 ## file available in $ROOTDIR/release/VSN.
 
 # Determine the abspath of where this script is executing from.
-ERTS_BIN_DIR=$(cd ${0%/*} && pwd)
+ERTS_BIN_DIR=$(cd ${0%/*} && pwd -P)
 
 # Now determine the root directory -- this script runs from erts-VSN/bin,
 # so we simply need to strip off two dirs from the end of the ERTS_BIN_DIR