test_gnunet_gns: Fix test

diff --git a/src/gns/test_gnunet_gns.sh b/src/gns/test_gnunet_gns.sh
index 7e0b4b5c5663b99f14490c1c06168ddc70c1eaec..74c49c5370e33be779e0e8a663cd2af12930064f 100755 (executable)
--- a/src/gns/test_gnunet_gns.sh
+++ b/src/gns/test_gnunet_gns.sh
@@ -1,15 +1,25 @@
 #!/bin/sh
 # This file is in the public domain.
-LOCATION=$(which gnunet-config)
-if [ -z $LOCATION ]
-then
-  LOCATION="gnunet-config"
+# test -z being correct was a false assumption here.
+# I have no executable 'fooble', but this will
+# return 1:
+# if test -z "`which fooble`"; then echo 1; fi
+# The command builtin might not work with busybox's ash
+# but this works for now.
+existence()
+{
+    command -v "$1" >/dev/null 2>&1
+}
+
+LOCATION=`existence gnunet-config`
+if test -z $LOCATION; then
+    LOCATION="gnunet-config"
 fi
 $LOCATION --version
 if test $? != 0
 then
-       echo "GNUnet command line tools cannot be found, check environmental variables PATH and GNUNET_PREFIX" 
-       exit 77
+    echo "GNUnet command line tools cannot be found, check environmental variables PATH and GNUNET_PREFIX" 
+    exit 77
 fi
 
 trap "gnunet-arm -e -c test_gns_lookup.conf" SIGINT