Fix --enable_rofiles_fuse=no build

Closes: #276
Approved by: cgwalters

Makefile.am

@@ -71,7 +71,9 @@ include Makefile-otutil.am
 include Makefile-libostree.am
 include Makefile-ostree.am
 include Makefile-switchroot.am
+if BUILDOPT_FUSE
 include src/rofiles-fuse/Makefile-inc.am
+endif
 include Makefile-tests.am
 include Makefile-boot.am
 include Makefile-man.am

configure.ac

@@ -222,7 +222,7 @@ AC_ARG_ENABLE(rofiles-fuse,
               [AS_HELP_STRING([--enable-rofiles-fuse],
                               [generate rofiles-fuse helper [default=yes]])],,
               enable_rofiles_fuse=yes)
-AS_IF([ test $enable_rofiles_fuse != xno ], [
+AS_IF([ test x$enable_rofiles_fuse != xno ], [
     PKG_CHECK_MODULES(BUILDOPT_FUSE, $FUSE_DEPENDENCY)
 ], [enable_rofiles_fuse=no])
 AM_CONDITIONAL(BUILDOPT_FUSE, test x$enable_rofiles_fuse = xyes)