!/usr/bin/env bash

if ! [ -x “$(command -v emcc)” ]; then

echo "Error: emcc could not be found." >&2
exit 1

fi

set -e

SOURCE_DIR=$PWD

# Working directories TARGET=$SOURCE_DIR/target mkdir -p “$TARGET”

# Define default arguments DEBUG=false

# Parse arguments while [ $# -gt 0 ]; do

case $1 in
  --debug) DEBUG=true ;;
  *) echo "ERROR: Unknown parameter: $1" >&2; exit 1 ;;
esac
shift

done

# Common compiler flags export CFLAGS=“-O3 -fPIC” if [ “$DEBUG” = “true” ]; then export CFLAGS+=“ -DDEBUG_F”; fi export CXXFLAGS=“$CFLAGS”

# Build paths export CPATH=“$TARGET/include” export PKG_CONFIG_PATH=“$TARGET/lib/pkgconfig” export EM_PKG_CONFIG_PATH=“$PKG_CONFIG_PATH”

# Specific variables for cross-compilation export CHOST=“wasm32-unknown-linux” # wasm32-unknown-emscripten

autoreconf -fiv emconfigure ./configure –host=$CHOST –prefix=“$TARGET” –enable-static –disable-shared –disable-dependency-tracking \

--disable-builddir --disable-multi-os-directory --disable-raw-api --disable-docs

make install cp fficonfig.h target/include/ cp include/ffi_common.h target/include/