diff --git a/src/gpg-error-config-test.sh b/src/gpg-error-config-test.sh
index 7ed70df..0501c8d 100755
--- a/src/gpg-error-config-test.sh
+++ b/src/gpg-error-config-test.sh
@@ -1,86 +1,86 @@
 #!/bin/sh
 
 PKG_CONFIG_PATH="."
 
 export PKG_CONFIG_PATH
 
 if [ "$1" = --old-new ]; then
     PKG_CONFIG_CMD=./gpg-error-config-old
 else
     PKG_CONFIG_CMD="pkg-config gpg-error"
     if ! $PKG_CONFIG_CMD --exists >/dev/null; then
 	exit 77			# Skip tests
     fi
 fi
 
 test_failed=""
 
 failure () {
     (
 	echo "Test result: $*"
 	echo "====================: $PKG_CONFIG_CMD"
 	echo "$OUTPUT_OLD"
 	echo "====================: gpg-error-config-new"
 	echo "$OUTPUT_NEW"
 	echo "===================="
     ) >> gpg-error-config-test.log
     test_failed=yes
 }
 
 rm -f gpg-error-config-test.log
 
 OUTPUT_OLD=$(echo $($PKG_CONFIG_CMD --libs))
 OUTPUT_NEW=$(./gpg-error-config-new --libs)
 [ "$OUTPUT_OLD" = "$OUTPUT_NEW" ] || failure --libs
 
 OUTPUT_OLD=$(echo $($PKG_CONFIG_CMD --cflags))
 OUTPUT_NEW=$(./gpg-error-config-new --cflags)
 [ "$OUTPUT_OLD" = "$OUTPUT_NEW" ] || failure --cflags
 
 OUTPUT_OLD=$(echo $($PKG_CONFIG_CMD --cflags --libs))
 OUTPUT_NEW=$(./gpg-error-config-new --cflags --libs)
 [ "$OUTPUT_OLD" = "$OUTPUT_NEW" ] || failure --cflags --libs
 
 if [ "$PKG_CONFIG_CMD" = ./gpg-error-config-old ]; then
-    OUTPUT_OLD=$($PKG_CONFIG_CMD --version)
+    OUTPUT_OLD=$(echo $($PKG_CONFIG_CMD --version))
     OUTPUT_NEW=$(./gpg-error-config-new --version)
     [ "$OUTPUT_OLD" = "$OUTPUT_NEW" ] || failure --version
 
-    OUTPUT_OLD=$($PKG_CONFIG_CMD --mt --libs)
+    OUTPUT_OLD=$(echo $($PKG_CONFIG_CMD --mt --libs))
     OUTPUT_NEW=$(./gpg-error-config-new --mt --libs)
     [ "$OUTPUT_OLD" = "$OUTPUT_NEW" ] || failure --mt --libs
 
-    OUTPUT_OLD=$($PKG_CONFIG_CMD --mt --cflags)
+    OUTPUT_OLD=$(echo $($PKG_CONFIG_CMD --mt --cflags))
     OUTPUT_NEW=$(./gpg-error-config-new --mt --cflags)
     [ "$OUTPUT_OLD" = "$OUTPUT_NEW" ] || failure --mt --cflags
 
-    OUTPUT_OLD=$($PKG_CONFIG_CMD --cflags --libs)
+    OUTPUT_OLD=$(echo $($PKG_CONFIG_CMD --cflags --libs))
     OUTPUT_NEW=$(./gpg-error-config-new --cflags --libs)
     [ "$OUTPUT_OLD" = "$OUTPUT_NEW" ] || failure --cflags --libs
 
-    OUTPUT_OLD=$($PKG_CONFIG_CMD --mt --cflags --libs)
+    OUTPUT_OLD=$(echo $($PKG_CONFIG_CMD --mt --cflags --libs))
     OUTPUT_NEW=$(./gpg-error-config-new --mt --cflags --libs)
     [ "$OUTPUT_OLD" = "$OUTPUT_NEW" ] || failure --mt --cflags --libs
 
-    OUTPUT_OLD=$($PKG_CONFIG_CMD --variable=mtcflags)
+    OUTPUT_OLD=$(echo $($PKG_CONFIG_CMD --variable=mtcflags))
     OUTPUT_NEW=$(./gpg-error-config-new --variable=mtcflags)
     [ "$OUTPUT_OLD" = "$OUTPUT_NEW" ] || failure --variable=mtcflags
 
-    OUTPUT_OLD=$($PKG_CONFIG_CMD --variable=mtlibs)
+    OUTPUT_OLD=$(echo $($PKG_CONFIG_CMD --variable=mtlibs))
     OUTPUT_NEW=$(./gpg-error-config-new --variable=mtlibs)
     [ "$OUTPUT_OLD" = "$OUTPUT_NEW" ] || failure --variable=mtlibs
 
-    OUTPUT_OLD=$($PKG_CONFIG_CMD --variable=host)
+    OUTPUT_OLD=$(echo $($PKG_CONFIG_CMD --variable=host))
     OUTPUT_NEW=$(./gpg-error-config-new --variable=host)
     [ "$OUTPUT_OLD" = "$OUTPUT_NEW" ] || failure --variable=host
 fi
 
 if [ -n "$test_failed" ]; then
     OUTPUT_OLD=$($PKG_CONFIG_CMD --version)
     OUTPUT_NEW=$(./gpg-error-config-new --version)
     failure --version
 
     exit 99
 fi
 
 exit 0