Remove bash-ism from emsdk_env.sh (#552)
This is a because its not possible to determine the location
of as script that is currently being sources under a POSIX shell
such as dash (the default ubuntu shell). Only bash has this
special BASH_SCRIPT variable.
diff --git a/emsdk_env.sh b/emsdk_env.sh
index d78dfff..2b57fda 100644
--- a/emsdk_env.sh
+++ b/emsdk_env.sh
@@ -1,4 +1,3 @@
-#!/bin/sh
# This script is sourced by the user and uses
# their shell. Try not to use bashisms.
@@ -15,11 +14,14 @@
# ./emsdk_env.sh
#
# which won't have any effect.
-DIR="$BASH_SOURCE"
-if [ "$DIR" = "" ]; then
- DIR="$0"
+if [ -z "$BASH_SOURCE" ]; then
+ if [ ! -f "./emsdk.py" ]; then
+ echo "error: You must be in the same directory as emsdk_env.sh when sourcing it (or switch to the bash shell)" 1>&2
+ fi
+ DIR="."
+else
+ DIR="$(dirname "$BASH_SOURCE")"
fi
-DIR="$(dirname "$DIR")"
# Force emsdk to use bash syntax so that this works in windows + bash too
eval `EMSDK_BASH=1 $DIR/emsdk construct_env`
