dnl $Id$
dnl config.m4 for extension pdlib

dnl Comments in this file start with the string 'dnl'.
dnl Remove where necessary. This file will not work
dnl without editing.

if test -z "$PHP_DEBUG"; then
    AC_ARG_ENABLE(debug,
    [   --enable-debug          compile with debugging symbols],[
        PHP_DEBUG=$enableval
    ],[ PHP_DEBUG=no
    ])
fi

PHP_ARG_WITH(pdlib, for pdlib support,
dnl Make sure that the comment is aligned:
[  --with-pdlib             Include pdlib support])

if test "$PHP_PDLIB" != "no"; then
  dnl using C++11
  CXXFLAGS="-std=c++11"
  PHP_REQUIRE_CXX()
  PHP_ADD_LIBRARY(stdc++, 1, PDLIB_SHARED_LIBADD)
  PHP_SUBST(PDLIB_SHARED_LIBADD)

  pdlib_src_files="pdlib.cc \
  src/chinese_whispers.cc \
  src/face_detection.cc \
  src/face_landmark_detection.cc \
  src/cnn_face_detection.cc"

  AC_MSG_CHECKING(for pkg-config)
  if test ! -f "$PKG_CONFIG"; then
        PKG_CONFIG=`which pkg-config`
  fi

  if test -x "$PKG_CONFIG" && $PKG_CONFIG --exists dlib-1; then
     if $PKG_CONFIG dlib-1 --atleast-version 19.00; then
        LIBDLIB_CFLAGS=`$PKG_CONFIG dlib-1 --cflags`
        LIBDLIB_LIBDIR=`$PKG_CONFIG dlib-1 --libs`
        LIBDLIB_VERSON=`$PKG_CONFIG dlib-1 --modversion`
        AC_MSG_RESULT(from pkgconfig: dlib version $LIBDLIB_VERSON)
     else
        AC_MSG_ERROR(system dlib is too old: version 19.00 required)
     fi
  else
     AC_MSG_ERROR(pkg-config not found)
  fi
  PHP_EVAL_LIBLINE($LIBDLIB_LIBDIR, PDLIB_SHARED_LIBADD)
  PHP_EVAL_INCLINE($LIBDLIB_CFLAGS)

  PHP_NEW_EXTENSION(pdlib, $pdlib_src_files, $ext_shared,, -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1)
fi