#! /bin/sh

if [ -z "$WASI_SYSROOT" ]; then

  export WASI_SYSROOT="/opt/wasi-sysroot"

fi

export PATH="/usr/local/opt/llvm/bin:$PATH"

export PREFIX="$(pwd)/libsodium-wasm32-wasi"

mkdir -p $PREFIX || exit 1

export CC="clang"

export CFLAGS="-DED25519_NONDETERMINISTIC=1 --target=wasm32-wasi --sysroot=${WASI_SYSROOT} -O2"

export LDFLAGS="-s -Wl,--no-threads"

export NM="llvm-nm"

export AR="llvm-ar"

export RANLIB="llvm-ranlib"

export STRIP="llvm-strip"

make distclean > /dev/null

grep -q -F -- 'wasi' build-aux/config.sub || \

  sed -i -e 's/-nacl\*)/-nacl*|-wasi)/' build-aux/config.sub

if [ "x$1" = "x--bench" ]; then

  export BENCHMARKS=1

  export CPPFLAGS="-DBENCHMARKS -DITERATIONS=100"

fi

if [ -n "$LIBSODIUM_MINIMAL_BUILD" ]; then

  export LIBSODIUM_ENABLE_MINIMAL_FLAG="--enable-minimal"

else

  export LIBSODIUM_ENABLE_MINIMAL_FLAG=""

fi

./configure ${LIBSODIUM_ENABLE_MINIMAL_FLAG} \

            --prefix="$PREFIX" --with-sysroot="$WASI_SYSROOT" \

            --host=wasm32-wasi \

            --disable-ssp --disable-shared || exit 1

NPROCESSORS=$(getconf NPROCESSORS_ONLN 2>/dev/null || getconf _NPROCESSORS_ONLN 2>/dev/null)

PROCESSORS=${NPROCESSORS:-3}

if [ -z "$BENCHMARKS" ]; then

  make -j${PROCESSORS} check && make install && make distclean > /dev/null

else

  make -j${PROCESSORS} && make check

fi