Ensure crate is compiled with std for panic handler
This CL adds a patch to use `extern crate std` to ensure that a panic
handler is available when the crate is compiled as a dylib.
Test: m rust
Bug: 333887339
Change-Id: I05c59773026bb78d207616f5f8d4cfc7215c39c4
diff --git a/patches/std.patch b/patches/std.patch
new file mode 100644
index 0000000..1b5028b
--- /dev/null
+++ b/patches/std.patch
@@ -0,0 +1,14 @@
+diff --git a/src/lib.rs b/src/lib.rs
+index 2a89800..e8d83dd 100644
+--- a/src/lib.rs
++++ b/src/lib.rs
+@@ -14,6 +14,9 @@ mod tests;
+ #[cfg(test)]
+ mod tests128;
+
++#[cfg(android_dylib)]
++extern crate std;
++
+ #[cfg(any(feature = "serde", feature = "serde_std", feature = "serde_no_std"))]
+ pub mod reexports {
+ pub use serde;
diff --git a/src/lib.rs b/src/lib.rs
index 2a89800..e8d83dd 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -14,6 +14,9 @@
#[cfg(test)]
mod tests128;
+#[cfg(android_dylib)]
+extern crate std;
+
#[cfg(any(feature = "serde", feature = "serde_std", feature = "serde_no_std"))]
pub mod reexports {
pub use serde;
