configure

echo ==== Configuring rbedrock R package ====

#### R CONFIGURATION ####

: ${R_HOME=`R RHOME`}
if test -z "${R_HOME}"; then
    echo >&2 "Could not determine R_HOME"
    exit 1
fi

CC=`"${R_HOME}/bin/R" CMD config CC` ; echo set CC=$CC ; export CC

CPPFLAGS=`"${R_HOME}/bin/R" CMD config CPPFLAGS`
CFLAGS=`"${R_HOME}/bin/R" CMD config CFLAGS`
CPICFLAGS=`"${R_HOME}/bin/R" CMD config CPICFLAGS`

CFLAGS="$CPPFLAGS $CPICFLAGS $CFLAGS"; echo set CFLAGS=$CFLAGS; export CFLAGS

CXX=`"${R_HOME}/bin/R" CMD config CXX` ;  echo set CXX=$CXX ; export CXX

CXXFLAGS=`"${R_HOME}/bin/R" CMD config CXXFLAGS`
CXXPICFLAGS=`"${R_HOME}/bin/R" CMD config CXXPICFLAGS`

CXXFLAGS="$CPPFLAGS $CXXPICFLAGS $CXXFLAGS"; echo set CXXFLAGS=$CXXFLAGS; export CXXFLAGS

LDFLAGS=`"${R_HOME}/bin/R" CMD config LDFLAGS`;  echo set LDFLAGS=$LDFLAGS; export LDFLAGS

if test -z "$CXX"; then
    echo >&2 "Could not detect C++ compiler with R CMD config."
fi

AR=`"${R_HOME}/bin/R" CMD config AR`
AR=`which $AR`

RANLIB=`"${R_HOME}/bin/R" CMD config RANLIB`
RANLIB=`which $RANLIB`


#### CMAKE CONFIGURATION ####

if test -z "$CMAKE_BIN"; then
  # Look for a cmake binary in the current path
  CMAKE_BIN=`which cmake 2>/dev/null`
fi

if test -z "$CMAKE_BIN"; then
  # Check for a MacOS specific path
  CMAKE_BIN=`which /Applications/CMake.app/Contents/bin/cmake 2>/dev/null`
fi

if test -z "$CMAKE_BIN"; then
  echo ""
  echo "------------------ CMAKE NOT FOUND --------------------"
  echo ""
  echo "CMake was not found on the PATH. Please install CMake:"
  echo ""
  echo " - yum install cmake          (Fedora/CentOS; inside a terminal)"
  echo " - apt install cmake          (Debian/Ubuntu; inside a terminal)."
  echo " - pacman -S cmake            (Arch Linux; inside a terminal)."
  echo " - brew install cmake         (MacOS; inside a terminal with Homebrew)"
  echo " - port install cmake         (MacOS; inside a terminal with MacPorts)"
  echo ""
  echo "Alternatively install CMake from: <https://cmake.org/>"
  echo ""
  echo "-------------------------------------------------------"
  echo ""

  exit 1
fi

echo set CMAKE_BIN=$CMAKE_BIN

echo ==== Configuring src/leveldb-mcpe via CMake ====

build_dir=src/leveldb-mcpe/build

(mkdir -p "${build_dir}" &&
  cd "${build_dir}" &&
  "${CMAKE_BIN}" -G "Unix Makefiles" .. \
    "-DCMAKE_AR=${AR}" \
    "-DCMAKE_RANLIB=${RANLIB}" \
    -DCMAKE_BUILD_TYPE=Release \
    -DBUILD_SHARED_LIBS:bool=OFF \
    -DCMAKE_POSITION_INDEPENDENT_CODE:bool=ON \
    -DCMAKE_VERBOSE_MAKEFILE:bool=ON \
    -DLEVELDB_BUILD_TESTS:BOOL=OFF \
    -DLEVELDB_INSTALL:BOOL=OFF \
    -Wno-dev
)

if test $? -ne 0 ; then
  exit 1
fi