Revert "builtin features instead"

This reverts commit 89f6330.

Cargo.toml

@@ -20,10 +20,11 @@ rust-version = "1.70"
 
 [workspace]
 members = [
-    "jiff-cli",
-    "jiff-tzdb",
-    "jiff-tzdb-platform",
-    "examples/*",
+  "jiff-cli",
+  "jiff-tzdb",
+  "jiff-tzdb-platform",
+  "sqlx-jiff",
+  "examples/*",
 ]
 
 # Features are documented in the "Crate features" section of the crate docs:
@@ -74,17 +75,11 @@ tzdb-zoneinfo = ["std"]
 # (This is the same dependency setup that the `getrandom` crate uses.)
 js = ["dep:wasm-bindgen", "dep:js-sys"]
 
-# This enables the integrations with the `sqlx` crate.
-sqlx = ["dep:sqlx"]
-sqlx-postgres = ["sqlx", "sqlx/postgres"]
-
 [dependencies]
 jiff-tzdb = { version = "0.1.1", path = "jiff-tzdb", optional = true }
 log = { version = "0.4.21", optional = true }
 serde = { version = "1.0.203", optional = true }
 
-sqlx = { version = "0.8.2", optional = true }
-
 # Note that the `cfg` gate for the `tzdb-bundle-platform` must repeat the
 # target gate on this dependency. The intent is that `tzdb-bundle-platform`
 # is enabled by default, but that the `tzdb-bundle-platform` crate is only

sqlx-jiff/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "sqlx-jiff"
+version = "0.1.0"
+license = "Unlicense OR MIT"
+homepage = "https://github.com/BurntSushi/jiff/tree/master/sqlx-jiff"
+repository = "https://github.com/BurntSushi/jiff"
+documentation = "https://docs.rs/sqlx-jiff"
+description = "Integration to use jiff structs for datetime types in sqlx."
+categories = ["date-and-time"]
+keywords = ["date", "time", "temporal", "zone", "iana"]
+workspace = ".."
+edition = "2021"
+rust-version = "1.70"
+
+[features]
+default = []
+postgres = ["sqlx/postgres"]
+
+[dependencies]
+jiff = { path = ".." }
+sqlx = { version = "0.8.2" }

sqlx-jiff/src/lib.rs

@@ -0,0 +1,2 @@
+#[cfg(feature = "postgres")]
+mod postgres;

src/lib.rs

@@ -712,9 +712,6 @@ pub mod tz;
 mod util;
 mod zoned;
 
-#[cfg(feature = "sqlx")]
-mod sqlx_impls;
-
 /// Longer form documentation for Jiff.
 pub mod _documentation {
     #[doc = include_str!("../COMPARE.md")]