Fix compiler warning on gcc 5.4

[pspp] / src / ui / gui / psppire-dialog-action-histogram.c

diff --git a/src/ui/gui/psppire-dialog-action-histogram.c b/src/ui/gui/psppire-dialog-action-histogram.c
index 3cf1fe77bc9ae4933ea884295c5368ed926ad724..4ac83d978734186f0d64707f14a6e370a196b2ad 100644 (file)
--- a/src/ui/gui/psppire-dialog-action-histogram.c
+++ b/src/ui/gui/psppire-dialog-action-histogram.c
@@ -59,7 +59,7 @@ refresh (PsppireDialogAction *rd_)
 }
 
 static void
-psppire_dialog_action_histogram_activate (GtkAction *a)
+psppire_dialog_action_histogram_activate (PsppireDialogAction *a)
 {
   PsppireDialogActionHistogram *act = PSPPIRE_DIALOG_ACTION_HISTOGRAM (a);
   PsppireDialogAction *pda = PSPPIRE_DIALOG_ACTION (a);
@@ -90,7 +90,7 @@ psppire_dialog_action_histogram_activate (GtkAction *a)
 
 
 static char *
-generate_syntax (PsppireDialogAction *a)
+generate_syntax (const PsppireDialogAction *a)
 {
   PsppireDialogActionHistogram *rd = PSPPIRE_DIALOG_ACTION_HISTOGRAM (a);
   gchar *text;