Since old SQLite versions do not have sqlite3_errstr(),

provide a dummy fallback implementation.
Do not bother to decode the error, SQLite error codes
are not useful enough for that to be worthwhile.
Note that using sqlite3_errmsg(db) would be a bad idea:
On malloc() failure, db is NULL, which would cause a segfault.
Issue noticed by kristaps@.

1 files changed, 18 insertions, 0 deletions

diff --git a/compat_sqlite3_errstr.c b/compat_sqlite3_errstr.c
new file mode 100644
index 00000000..b8d6eb58
--- /dev/null
+++ b/compat_sqlite3_errstr.c
@@ -0,0 +1,18 @@
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#ifdef HAVE_SQLITE3_ERRSTR
+
+int dummy;
+
+#else
+
+const char *
+sqlite3_errstr(int rc)
+{
+
+	return(rc ? "unknown error" : "not an error");
+}
+
+#endif