#!/bin/sh
#

F="configure-android"

if test "$*" = "--help" -o "$*" = "-h"; then
  echo "$F [--use-ndk-cflags] [OPTIONS]"
  echo ""
  echo "where:"
  echo "  --use-ndk-cflags"
  echo "              Optional parameter to use the same compilation flags"
  echo "              as the one used by ndk-build"
  echo "  OPTIONS     Other options that will be passed directly to"
  echo "              ./aconfigure script. Run ./aconfigure --help"
  echo "              for more info."
  exit 0
fi

if test "x${ANDROID_NDK}" = "x"; then
  echo "$F error: ANDROID_NDK must be specified"
  exit 0
fi

#if test "$1" = "--simulator"; then
if test "1" = "0"; then
  shift
  TARGET_HOST="i686-android-linux"
  TC_DIR="x86"
else
  TARGET_HOST="arm-linux-androideabi"
  TC_DIR=${TARGET_HOST}
fi

if test "$1" = "--use-ndk-cflags"; then
  shift
  for i in `${ANDROID_NDK}/ndk-build --dry-run --directory=${ANDROID_NDK}/samples/hello-jni`; do
    if test "$i" = "-c"; then break; fi
    if test "x${NDK_CC}" != "x" -a "$i" != "-MF" -a "x`echo $i|grep '\.o\.d'`" = "x" -a "x`echo $i|grep 'include'`" = "x"; then
      NDK_CFLAGS="${NDK_CFLAGS} $i"
    fi
    if test "x`echo $i | grep 'gcc'`" != "x"; then
      NDK_CC=$i
    fi
  done
  export CFLAGS+="${NDK_CFLAGS}"
fi

HOST_OS=$(uname -s)
case $HOST_OS in
  Darwin) BUILD_MACHINE="darwin-x86";;
  Linux) BUILD_MACHINE="linux-x86";;
  CYGWIN*|*_NT-*) BUILD_MACHINE="windows";;
esac

if test "x$API_LEVEL" = "x"; then
  API_LEVEL=`ls ${ANDROID_NDK}/platforms/ | sed 's/android-//' | sort -gr | head -1`
  echo "$F: API_LEVEL not specified, using android-${API_LEVEL}"
fi

ANDROID_TC="${ANDROID_NDK}/toolchains/${TC_DIR}-4.4.3/prebuilt/${BUILD_MACHINE}"
if test ! -d ${ANDROID_TC}; then
  echo "$F error: unable to find directory ${ANDROID_TC} in Android NDK"
  exit 1
fi

export ANDROID_SYSROOT="${ANDROID_NDK}/platforms/android-${API_LEVEL}/arch-arm"
if test ! -d ${ANDROID_SYSROOT}; then
  echo "$F error: unable to find sysroot dir ${ANDROID_SYSROOT} in Android NDK"
  exit 1
fi

export CC="${ANDROID_TC}/bin/${TARGET_HOST}-gcc"
export CXX="${ANDROID_TC}/bin/${TARGET_HOST}-g++"

export LDFLAGS+=" -nostdlib -L${ANDROID_SYSROOT}/usr/lib/"
export LIBS+=" -lc -lgcc"
export CFLAGS+=" -I${ANDROID_SYSROOT}/usr/include"
export CPPFLAGS="${CFLAGS}"
export CXXFLAGS+=" -shared --sysroot=${ANDROID_SYSROOT}"

# Print settings
if test "1" = "1"; then
  echo "$F: calling ./configure with env vars:"
  echo " CC = ${CC}"
  echo " CXX = ${CXX}"
  echo " CFLAGS = ${CFLAGS}"
  echo " CXXFLAGS = ${CXXFLAGS}"
  echo " LDFLAGS = ${LDFLAGS}"
  echo " LIBS = ${LIBS}"
fi

./configure --host=${TARGET_HOST} --disable-video $*