fix ios build script

build_ios.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+rm -rf ios_build
+rm -rf WalletKit.xcframework
+mkdir ios_build
+mkdir ios_build/bindings
+mkdir -p ios_build/target/universal-ios-sim/release
+mkdir -p ./Sources/Oxide
+
+
+export IPHONEOS_DEPLOYMENT_TARGET="13.0"
+export RUSTFLAGS="-C link-arg=-Wl,-application_extension"
+cargo build --package walletkit --target aarch64-apple-ios-sim --release
+cargo build --package walletkit --target aarch64-apple-ios --release
+cargo build --package walletkit --target x86_64-apple-ios --release
+
+
+lipo -create target/aarch64-apple-ios-sim/release/libwalletkit.a \
+  target/x86_64-apple-ios/release/libwalletkit.a \
+  -output ./ios_build/target/universal-ios-sim/release/libwalletkit.a
+
+cargo run -p uniffi-bindgen generate \
+  target/aarch64-apple-ios-sim/release/libwalletkit.dylib \
+  --library \
+  --language swift \
+  --no-format \
+  --out-dir ios_build/bindings
+
+mv ./ios_build/bindings/walletkit.swift ./Sources/Oxide/
+
+mkdir ios_build/Headers
+mv ./ios_build/bindings/walletkitFFI.h ./ios_build/Headers/
+
+cat ./ios_build/bindings/walletkitFFI.modulemap > ./ios_build/Headers/module.modulemap
+
+xcodebuild -create-xcframework \
+  -library target/aarch64-apple-ios/release/libwalletkit.a \
+  -headers ./ios_build/Headers \
+  -library ./ios_build/target/universal-ios-sim/release/libwalletkit.a \
+  -headers ./ios_build/Headers \
+  -output ./WalletKit.xcframework
+
+rm -rf ios_build