#!/bin/bash

if [ -z "$SDKDIR" ]; then

    SDKDIR="/emsdk_portable"

fi

ENVSCRIPT="$SDKDIR/emsdk_env.sh"

if [ ! -f "$ENVSCRIPT" ]; then

   echo "ERROR: This script expects the Emscripten SDK to be in '$SDKDIR'." 1>&2

   echo "ERROR: Set the \$SDKDIR environment variable to override this." 1>&2

   exit 1

fi

TARBALL="$1"

if [ -z $1 ]; then

    TARBALL=sdl-emscripten.tar.xz

fi

cd `dirname "$0"`

cd ..

SDLBASE=`pwd`

if [ -z "$MAKE" ]; then

    OSTYPE=`uname -s`

    if [ "$OSTYPE" == "Linux" ]; then

        NCPU=`cat /proc/cpuinfo |grep vendor_id |wc -l`

        let NCPU=$NCPU+1

    elif [ "$OSTYPE" = "Darwin" ]; then

        NCPU=`sysctl -n hw.ncpu`

    elif [ "$OSTYPE" = "SunOS" ]; then

        NCPU=`/usr/sbin/psrinfo |wc -l |sed -e 's/^ *//g;s/ *$//g'`

    else

        NCPU=1

    fi

    if [ -z "$NCPU" ]; then

        NCPU=1

    elif [ "$NCPU" = "0" ]; then

        NCPU=1

    fi

    MAKE="make -j$NCPU"

fi

echo "\$MAKE is '$MAKE'"

echo "Setting up Emscripten SDK environment..."

source "$ENVSCRIPT"

echo "Setting up..."

set -x

cd "$SDLBASE"

rm -rf buildbot

mkdir buildbot

pushd buildbot

echo "Configuring..."

emconfigure ../configure --host=asmjs-unknown-emscripten --disable-assembly --disable-threads --disable-cpuinfo CFLAGS="-O2 -Wno-warn-absolute-paths -Wdeclaration-after-statement -Werror=declaration-after-statement" --prefix="$PWD/emscripten-sdl2-installed" || exit $?

echo "Building..."

emmake $MAKE || exit $?

echo "Moving things around..."

emmake $MAKE install || exit $?

# Fix up a few things to a real install path

perl -w -pi -e "s#$PWD/emscripten-sdl2-installed#/usr/local#g;" ./emscripten-sdl2-installed/lib/libSDL2.la ./emscripten-sdl2-installed/lib/pkgconfig/sdl2.pc ./emscripten-sdl2-installed/bin/sdl2-config

mkdir -p ./usr

mv ./emscripten-sdl2-installed ./usr/local

popd

tar -cJvvf $TARBALL -C buildbot usr

rm -rf buildbot

exit 0

# end of emscripten-buildbot.sh ...