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

  if test "$PHP_PDO" = "no" && test "$ext_shared" = "no"; then
    AC_MSG_ERROR([PDO is not enabled! Add --enable-pdo to your configure line.])
  fi

  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 $FB_VERSION)
    PHP_EVAL_LIBLINE($FB_LIBDIR, PDO_FIREBIRD_SHARED_LIBADD)
    PHP_EVAL_INCLINE($FB_CFLAGS)

  else
    if test "$PHP_PDO_FIREBIRD" = "yes"; then
      FIREBIRD_INCDIR=
      FIREBIRD_LIBDIR=
      FIREBIRD_LIBDIR_FLAG=
    else
      FIREBIRD_INCDIR=$PHP_PDO_FIREBIRD/include
      FIREBIRD_LIBDIR=$PHP_PDO_FIREBIRD/$PHP_LIBDIR
      FIREBIRD_LIBDIR_FLAG=-L$FIREBIRD_LIBDIR
    fi

    PHP_CHECK_LIBRARY(fbclient, isc_detach_database,
    [
      FIREBIRD_LIBNAME=fbclient
    ], [
      PHP_CHECK_LIBRARY(gds, isc_detach_database,
      [
        FIREBIRD_LIBNAME=gds
      ], [
        PHP_CHECK_LIBRARY(ib_util, isc_detach_database,
        [
          FIREBIRD_LIBNAME=ib_util
        ], [
          AC_MSG_ERROR([libfbclient, libgds or libib_util not found! Check config.log for more information.])
        ], [
          $FIREBIRD_LIBDIR_FLAG
        ])
      ], [
        $FIREBIRD_LIBDIR_FLAG
      ])
    ], [
      $FIREBIRD_LIBDIR_FLAG
    ])
    PHP_ADD_LIBRARY_WITH_PATH($FIREBIRD_LIBNAME, $FIREBIRD_LIBDIR, PDO_FIREBIRD_SHARED_LIBADD)
    PHP_ADD_INCLUDE($FIREBIRD_INCDIR)
  fi

  PHP_CHECK_PDO_INCLUDES

  AC_DEFINE(HAVE_PDO_FIREBIRD,1,[ ])
  PHP_NEW_EXTENSION(pdo_firebird, pdo_firebird.c firebird_driver.c firebird_statement.c, $ext_shared,,-I$pdo_cv_inc_path)
  PHP_SUBST(PDO_FIREBIRD_SHARED_LIBADD)
  PHP_ADD_EXTENSION_DEP(pdo_firebird, pdo)
fi