#!/bin/bash

 if [ -z "$SDKDIR" ]; then

     SDKDIR="/emsdk"

 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=wasm32-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

 tar -cJvvf $TARBALL usr

 popd

 exit 0

 # end of emscripten-buildbot.sh ...