cairo-fsm: Honor displaying footnote markers as subscripts.

[pspp] / src / output / charts / roc-chart-cairo.c

diff --git a/src/output/charts/roc-chart-cairo.c b/src/output/charts/roc-chart-cairo.c
index 97f7a45d9ad6293755ba5d401fdae386af2d955f..ae2db62efbd6f7acd4482be82323d70bc093e154 100644 (file)
--- a/src/output/charts/roc-chart-cairo.c
+++ b/src/output/charts/roc-chart-cairo.c
@@ -37,8 +37,10 @@ xrchart_draw_roc (const struct chart_item *chart_item, cairo_t *cr,
   xrchart_write_xlabel (cr, geom, _("1 - Specificity"));
   xrchart_write_ylabel (cr, geom, _("Sensitivity"));
 
-  xrchart_write_xscale (cr, geom, 0, 1);
-  xrchart_write_yscale (cr, geom, 0, 1);
+  if (! xrchart_write_xscale (cr, geom, 0, 1))
+    return;
+  if (! xrchart_write_yscale (cr, geom, 0, 1))
+    return;
 
   if (rc->reference)
     {