require SQLite >= 3.21.0

After some testing it turns out we need at least SQLite 3.21.0 to
compile.

We _could_ work around this and make zig-sqlite work with older SQLite
versions but I don't think it's necessary because:
* "old" distributions like Debian Buster, RHEL 8 ship with SQLite >
  3.21.0
* in any case if people want to build for OSes where SQLite is too old
  they can use the bundled source code.

1 files changed, 1 insertions, 2 deletions

diff --git a/errors.zig b/errors.zig
index 2beef5f..add4b37 100644
--- a/errors.zig
+++ b/errors.zig
@@ -2,8 +2,7 @@ const std = @import("std");
 const mem = std.mem;
 
 const c = @import("c.zig").c;
-
-const versionGreaterThanOrEqualTo = @import("sqlite.zig").versionGreaterThanOrEqualTo;
+const versionGreaterThanOrEqualTo = @import("c.zig").versionGreaterThanOrEqualTo;
 
 pub const SQLiteExtendedIOError = error{
     SQLiteIOErrRead,