diff -r b49869bd2a0a -r 620358ea3a0b test/configure
--- a/test/configure	Fri Sep 22 23:22:28 2023 +0200
+++ b/test/configure	Sun Sep 24 18:37:30 2023 +0200
@@ -30,8 +30,8 @@
 
 # custom variables
 HOST=`uname -n`
-PREFIX=`pwd`/work
-INSTALL_DIR=$PREFIX
+PREFIX="`pwd`/work"
+INSTALL_DIR="$PREFIX"
 
 # features
 FEATURE_PG=auto
@@ -170,22 +170,22 @@
 
 # generate vars.mk
 cat > "$TEMP_DIR/vars.mk" << __EOF__
-PREFIX=$PREFIX
-EPREFIX=$EPREFIX
-BINDIR=$BINDIR
-SBINDIR=$SBINDIR
-LIBDIR=$LIBDIR
-LIBEXECDIR=$LIBEXECDIR
-DATADIR=$DATADIR
-SYSCONFDIR=$SYSCONFDIR
-SHAREDSTATEDIR=$SHAREDSTATEDIR
-LOCALSTATEDIR=$LOCALSTATEDIR
-INCLUDEDIR=$INCLUDEDIR
-INFODIR=$INFODIR
-MANDIR=$MANDIR
-HOST=$HOST
-PREFIX=$PREFIX
-INSTALL_DIR=$INSTALL_DIR
+PREFIX="$PREFIX"
+EPREFIX="$EPREFIX"
+BINDIR="$BINDIR"
+SBINDIR="$SBINDIR"
+LIBDIR="$LIBDIR"
+LIBEXECDIR="$LIBEXECDIR"
+DATADIR="$DATADIR"
+SYSCONFDIR="$SYSCONFDIR"
+SHAREDSTATEDIR="$SHAREDSTATEDIR"
+LOCALSTATEDIR="$LOCALSTATEDIR"
+INCLUDEDIR="$INCLUDEDIR"
+INFODIR="$INFODIR"
+MANDIR="$MANDIR"
+HOST="$HOST"
+PREFIX="$PREFIX"
+INSTALL_DIR="$INSTALL_DIR"
 __EOF__
 sort -u -o "$TEMP_DIR/vars.mk" "$TEMP_DIR/vars.mk"