Run asan in CI. Fixes #713

libsqlite3-sys/Cargo.toml

@@ -31,6 +31,7 @@ preupdate_hook = []
 # 3.13.0
 session = ["preupdate_hook"]
 in_gecko = []
+with-asan = []
 
 [build-dependencies]
 bindgen = { version = "0.53", optional = true, default-features = false, features = ["runtime"] }

libsqlite3-sys/build.rs

@@ -80,6 +80,11 @@ mod build_bundled {
             .flag("-DSQLITE_USE_URI")
             .flag("-DHAVE_USLEEP=1")
             .warnings(false);
+
+        if cfg!(feature = "with-asan") {
+            cfg.flag("-fsanitize=address");
+        }
+
         // Older versions of visual studio don't support c99 (including isnan), which
         // causes a build failure when the linker fails to find the `isnan`
         // function. `sqlite` provides its own implmentation, using the fact