[bindings] Build a wasm32-wasi library in genbindings.sh

[rust-lightning] / genbindings.sh

diff --git a/genbindings.sh b/genbindings.sh
index 1ca2f6e8e886d1463d24bc9da55ae487ab04fde3..bfeda6bcdaebac000f32e4d1968355395c314821 100755 (executable)
--- a/genbindings.sh
+++ b/genbindings.sh
@@ -44,8 +44,16 @@ HOST_PLATFORM="$(rustc --version --verbose | grep "host:")"
 if [ "$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:
@@ -171,6 +179,9 @@ else
        echo "WARNING: Can't use address sanitizer on non-Linux, non-OSX non-x86 platforms"
 fi
 
+cargo rustc -v --target=wasm32-wasi -- -C embed-bitcode=yes || echo "WARNING: Failed to generate WASM LLVM-bitcode-embedded library"
+CARGO_PROFILE_RELEASE_LTO=true cargo rustc -v --release --target=wasm32-wasi -- -C opt-level=s -C linker-plugin-lto -C lto || echo "WARNING: Failed to generate WASM LLVM-bitcode-embedded optimized library"
+
 # 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