if [ "$HOST_PLATFORM" = "host: x86_64-apple-darwin" ]; then
# OSX sed is for some reason not compatible with GNU sed
sed -i '' 's/typedef LDKnative.*Import.*LDKnative.*;//g' include/lightning.h
+
+ # stdlib.h doesn't exist in clang's wasm sysroot, and cbindgen
+ # doesn't actually use it anyway, so drop the import.
+ sed -i '' 's/#include <stdlib.h>//g' include/lightning.h
else
sed -i 's/typedef LDKnative.*Import.*LDKnative.*;//g' include/lightning.h
+
+ # stdlib.h doesn't exist in clang's wasm sysroot, and cbindgen
+ # doesn't actually use it anyway, so drop the import.
+ sed -i 's/#include <stdlib.h>//g' include/lightning.h
fi
# Finally, sanity-check the generated C and C++ bindings with demo apps:
echo "WARNING: Can't use address sanitizer on non-Linux, non-OSX non-x86 platforms"
fi
+if [ "$(rustc --print target-list | grep wasm32-wasi)" != "" ]; then
+ # Test to see if clang supports wasm32 as a target (which is needed to build rust-secp256k1)
+ echo "int main() {}" > genbindings_wasm_test_file.c
+ clang -nostdlib -o /dev/null --target=wasm32-wasi -Wl,--no-entry genbindings_wasm_test_file.c > /dev/null 2>&1 &&
+ # And if it does, build a WASM binary without capturing errors
+ cargo rustc -v --target=wasm32-wasi -- -C embed-bitcode=yes &&
+ CARGO_PROFILE_RELEASE_LTO=true cargo rustc -v --release --target=wasm32-wasi -- -C opt-level=s -C linker-plugin-lto -C lto ||
+ echo "Cannot build WASM lib as clang does not seem to support the wasm32-wasi target"
+ rm genbindings_wasm_test_file.c
+fi
+
# Now build with LTO on on both C++ and rust, but without cross-language LTO:
CARGO_PROFILE_RELEASE_LTO=true cargo rustc -v --release -- -C lto
clang++ $CFLAGS -std=c++11 -flto -O2 demo.cpp target/release/libldk.a -ldl