fixed crashes when the Q-Reg stack is non-empty at exit

* Test case: sciteco -e '[a'
  [aEX$$ in interactive mode would also crash.
* No longer use a destructor - it was executed after the Q-Reg view was
  destroyed.
* Instead, we now explicitly call teco_qreg_stack_clear() in main().
* Added a regression test case.

3 files changed, 3 insertions, 3 deletions

diff --git a/src/main.c b/src/main.c
index 38b1197..797ef73 100644
--- a/src/main.c
+++ b/src/main.c
@@ -457,6 +457,7 @@ cleanup:
 	teco_ring_cleanup();
 	teco_qreg_table_clear(&local_qregs);
 	teco_qreg_table_clear(&teco_qreg_table_globals);
+	teco_qreg_stack_clear();
 	teco_view_free(teco_qreg_view);
 #endif
 	teco_interface_cleanup();
diff --git a/src/qreg.c b/src/qreg.c
index 5c39409..84bc217 100644
--- a/src/qreg.c
+++ b/src/qreg.c
@@ -1140,14 +1140,12 @@ teco_qreg_stack_pop(teco_qreg_t *qreg, GError **error)
 	return TRUE;
 }
 
-#ifndef NDEBUG
-static void __attribute__((destructor))
+void
 teco_qreg_stack_clear(void)
 {
 	g_array_set_clear_func(teco_qreg_stack, (GDestroyNotify)teco_qreg_stack_entry_clear);
 	g_array_free(teco_qreg_stack, TRUE);
 }
-#endif
 
 gboolean
 teco_ed_hook(teco_ed_hook_t type, GError **error)
diff --git a/src/qreg.h b/src/qreg.h
index 4797a01..6199b31 100644
--- a/src/qreg.h
+++ b/src/qreg.h
@@ -179,6 +179,7 @@ extern teco_qreg_table_t teco_qreg_table_globals;
 
 gboolean teco_qreg_stack_push(teco_qreg_t *qreg, GError **error);
 gboolean teco_qreg_stack_pop(teco_qreg_t *qreg, GError **error);
+void teco_qreg_stack_clear(void);
 
 typedef enum {
 	TECO_ED_HOOK_ADD = 1,