Merge pull request #55 from filbranden/rootprefix_empty1

Fix --with-rootprefix= (empty) with a workaround for now.

autogen.sh

@@ -47,7 +47,7 @@ fi
 
 if [ ! -L /bin ]; then
 args="$args \
---with-rootprefix= \
+--with-rootprefix=/ \
 --with-rootlibdir=$(libdir /lib) \
 "
 fi

configure.ac

@@ -1387,6 +1387,13 @@ AX_NORMALIZE_PATH([with_zshcompletiondir])
 AC_ARG_WITH([rootprefix],
         AS_HELP_STRING([--with-rootprefix=DIR], [rootfs directory prefix for config files and kernel modules]),
         [], [with_rootprefix=${ac_default_prefix}])
+# --with-rootprefix= (empty) should default to "/" but AX_NORMALIZE_PATH
+# defaults those to ".", solve that here for now until we can find a suitable
+# fix for AX_NORMALIZE_PATH upstream at autoconf-archive.
+# See: https://github.com/systemd/systemd/issues/54
+if test "x${with_rootprefix}" = "x"; then
+        with_rootprefix="/"
+fi
 AX_NORMALIZE_PATH([with_rootprefix])
 
 AC_ARG_WITH([rootlibdir],