PHP_ARG_WITH([pdo-firebird],
  [for Firebird support for PDO],
  [AS_HELP_STRING([[--with-pdo-firebird[=DIR]]],
    [PDO: Firebird support. DIR is the Firebird base install directory
    [/opt/firebird]])])

if test "$PHP_PDO_FIREBIRD" != "no"; then
  AC_PATH_PROG([FB_CONFIG], [fb_config], [no])

  if test -x "$FB_CONFIG" && test "$PHP_PDO_FIREBIRD" = "yes"; then
    AC_MSG_CHECKING([for libfbconfig])
    FB_CFLAGS=$($FB_CONFIG --cflags)
    FB_LIBDIR=$($FB_CONFIG --libs)
    FB_VERSION=$($FB_CONFIG --version)
    AC_MSG_RESULT([version $FB_VERSION])
    AS_VERSION_COMPARE([$FB_VERSION], [3.0],
      [AC_MSG_ERROR([Firebird required version is at least 3.0])])
    PHP_EVAL_LIBLINE([$FB_LIBDIR], [PDO_FIREBIRD_SHARED_LIBADD])
    PHP_EVAL_INCLINE([$FB_CFLAGS])
  else
    AS_VAR_IF([PHP_PDO_FIREBIRD], [yes], [
      FIREBIRD_INCDIR=
      FIREBIRD_LIBDIR=
      FIREBIRD_LIBDIR_FLAG=
    ], [
      FIREBIRD_INCDIR=$PHP_PDO_FIREBIRD/include
      FIREBIRD_LIBDIR=$PHP_PDO_FIREBIRD/$PHP_LIBDIR
      FIREBIRD_LIBDIR_FLAG=-L$FIREBIRD_LIBDIR
    ])

    PHP_CHECK_LIBRARY([fbclient], [fb_get_master_interface],
      [],
      [AC_MSG_FAILURE([libfbclient not found.])],
      [$FIREBIRD_LIBDIR_FLAG])
    PHP_ADD_LIBRARY_WITH_PATH([fbclient],
      [$FIREBIRD_LIBDIR],
      [PDO_FIREBIRD_SHARED_LIBADD])
    PHP_ADD_INCLUDE([$FIREBIRD_INCDIR])
  fi

  PHP_CHECK_PDO_INCLUDES

  PHP_NEW_EXTENSION([pdo_firebird],
    [pdo_firebird.c firebird_driver.c firebird_statement.c],
    [$ext_shared],,,
    [cxx])
  PHP_SUBST([PDO_FIREBIRD_SHARED_LIBADD])
  PHP_ADD_EXTENSION_DEP(pdo_firebird, pdo)

  PHP_REQUIRE_CXX()
  PHP_CXX_COMPILE_STDCXX([11], [mandatory], [PHP_PDO_FIREBIRD_STDCXX])

  PHP_PDO_FIREBIRD_CXX_SOURCES="pdo_firebird_utils.cpp"

  AS_VAR_IF([ext_shared], [no],
    [PHP_ADD_SOURCES([$ext_dir],
      [$PHP_PDO_FIREBIRD_CXX_SOURCES],
      [$PHP_PDO_FIREBIRD_STDCXX])],
    [PHP_ADD_SOURCES_X([$ext_dir],
      [$PHP_PDO_FIREBIRD_CXX_SOURCES],
      [$PHP_PDO_FIREBIRD_STDCXX],
      [shared_objects_pdo_firebird],
      [yes])])
fi