#

# Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.

# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

#

# This code is free software; you can redistribute it and/or modify it

# under the terms of the GNU General Public License version 2 only, as

# published by the Free Software Foundation.  Oracle designates this

# particular file as subject to the "Classpath" exception as provided

# by Oracle in the LICENSE file that accompanied this code.

#

# This code is distributed in the hope that it will be useful, but WITHOUT

# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

# version 2 for more details (a copy is included in the LICENSE file that

# accompanied this code).

#

# You should have received a copy of the GNU General Public License version

# 2 along with this work; if not, write to the Free Software Foundation,

# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

#

# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

# or visit www.oracle.com if you need additional information or have any

# questions.

#

################################################################################

# Setup bundled libraries.

#

# For libjpeg, giflib, libpng, lcms2 and zlib the source is present in the

# OpenJDK repository (referred to as "bundled"). Default is to use libjpeg,

# giflib, libpng and lcms2 libraries as "bundled". The default for zlib is

# to use the bundled zlib on Windows and AIX, otherwise the external ("system")

# zlib, if present. However the libs may be replaced by an external ("system")

# version by the user.

################################################################################

AC_DEFUN_ONCE([LIB_SETUP_BUNDLED_LIBS],

[

  LIB_SETUP_LIBJPEG

  LIB_SETUP_GIFLIB

  LIB_SETUP_LIBPNG

  LIB_SETUP_ZLIB

  LIB_SETUP_LCMS

])

################################################################################

# Setup libjpeg

################################################################################

AC_DEFUN_ONCE([LIB_SETUP_LIBJPEG],

[

  AC_ARG_WITH(libjpeg, [AS_HELP_STRING([--with-libjpeg],

      [use libjpeg from build system or OpenJDK source (system, bundled) @<:@bundled@:>@])])

  AC_MSG_CHECKING([for which libjpeg to use])

  # default is bundled

  DEFAULT_LIBJPEG=bundled

  # if user didn't specify, use DEFAULT_LIBJPEG

  if test "x${with_libjpeg}" = "x"; then

    with_libjpeg=${DEFAULT_LIBJPEG}

  fi

  AC_MSG_RESULT(${with_libjpeg})

  if test "x${with_libjpeg}" = "xbundled"; then

    USE_EXTERNAL_LIBJPEG=false

  elif test "x${with_libjpeg}" = "xsystem"; then

    AC_CHECK_HEADER(jpeglib.h, [],

        [ AC_MSG_ERROR([--with-libjpeg=system specified, but jpeglib.h not found!])])

    AC_CHECK_LIB(jpeg, jpeg_CreateDecompress, [],

        [ AC_MSG_ERROR([--with-libjpeg=system specified, but no libjpeg found])])

    USE_EXTERNAL_LIBJPEG=true

  else

    AC_MSG_ERROR([Invalid use of --with-libjpeg: ${with_libjpeg}, use 'system' or 'bundled'])

  fi

  AC_SUBST(USE_EXTERNAL_LIBJPEG)

])

################################################################################

# Setup giflib

################################################################################

AC_DEFUN_ONCE([LIB_SETUP_GIFLIB],

[

  AC_ARG_WITH(giflib, [AS_HELP_STRING([--with-giflib],

      [use giflib from build system or OpenJDK source (system, bundled) @<:@bundled@:>@])])

  AC_MSG_CHECKING([for which giflib to use])

  # default is bundled

  DEFAULT_GIFLIB=bundled

  # if user didn't specify, use DEFAULT_GIFLIB

  if test "x${with_giflib}" = "x"; then

    with_giflib=${DEFAULT_GIFLIB}

  fi

  AC_MSG_RESULT(${with_giflib})

  if test "x${with_giflib}" = "xbundled"; then

    USE_EXTERNAL_LIBGIF=false

  elif test "x${with_giflib}" = "xsystem"; then

    AC_CHECK_HEADER(gif_lib.h, [],

        [ AC_MSG_ERROR([--with-giflib=system specified, but gif_lib.h not found!])])

    AC_CHECK_LIB(gif, DGifGetCode, [],

        [ AC_MSG_ERROR([--with-giflib=system specified, but no giflib found!])])

    USE_EXTERNAL_LIBGIF=true

  else

    AC_MSG_ERROR([Invalid value of --with-giflib: ${with_giflib}, use 'system' or 'bundled'])

  fi

  AC_SUBST(USE_EXTERNAL_LIBGIF)

])

################################################################################

# Setup libpng

################################################################################

AC_DEFUN_ONCE([LIB_SETUP_LIBPNG],

[

  AC_ARG_WITH(libpng, [AS_HELP_STRING([--with-libpng],

     [use libpng from build system or OpenJDK source (system, bundled) @<:@bundled@:>@])])

  PKG_CHECK_MODULES(PNG, libpng, [LIBPNG_FOUND=yes], [LIBPNG_FOUND=no])

  AC_MSG_CHECKING([for which libpng to use])

  # default is bundled

  DEFAULT_LIBPNG=bundled

  # if user didn't specify, use DEFAULT_LIBPNG

  if test "x${with_libpng}" = "x"; then

    with_libpng=${DEFAULT_LIBPNG}

  fi

  if test "x${with_libpng}" = "xbundled"; then

    USE_EXTERNAL_LIBPNG=false

    PNG_CFLAGS=""

    PNG_LIBS=""

    AC_MSG_RESULT([bundled])

  elif test "x${with_libpng}" = "xsystem"; then

    if test "x${LIBPNG_FOUND}" = "xyes"; then

      # PKG_CHECK_MODULES will set PNG_CFLAGS and PNG_LIBS

      USE_EXTERNAL_LIBPNG=true

      AC_MSG_RESULT([system])

    else

      AC_MSG_RESULT([system not found])

      AC_MSG_ERROR([--with-libpng=system specified, but no libpng found!])

    fi

  else

    AC_MSG_ERROR([Invalid value of --with-libpng: ${with_libpng}, use 'system' or 'bundled'])

  fi

  AC_SUBST(USE_EXTERNAL_LIBPNG)

  AC_SUBST(PNG_CFLAGS)

  AC_SUBST(PNG_LIBS)

])

################################################################################

# Setup zlib

################################################################################

AC_DEFUN_ONCE([LIB_SETUP_ZLIB],

[

  AC_ARG_WITH(zlib, [AS_HELP_STRING([--with-zlib],

      [use zlib from build system or OpenJDK source (system, bundled) @<:@bundled@:>@])])

  AC_CHECK_LIB(z, compress,

      [ ZLIB_FOUND=yes ],

      [ ZLIB_FOUND=no ])

  AC_MSG_CHECKING([for which zlib to use])

  DEFAULT_ZLIB=system

  if test "x$OPENJDK_TARGET_OS" = xwindows -o "x$OPENJDK_TARGET_OS" = xaix; then

    # On windows and aix default is bundled, on others default is system

    DEFAULT_ZLIB=bundled

  fi

  if test "x${ZLIB_FOUND}" != "xyes"; then

    # If we don't find any system...set default to bundled

    DEFAULT_ZLIB=bundled

  fi

  # If user didn't specify, use DEFAULT_ZLIB

  if test "x${with_zlib}" = "x"; then

    with_zlib=${DEFAULT_ZLIB}

  fi

  if test "x${with_zlib}" = "xbundled"; then

    USE_EXTERNAL_LIBZ=false

    AC_MSG_RESULT([bundled])

  elif test "x${with_zlib}" = "xsystem"; then

    if test "x${ZLIB_FOUND}" = "xyes"; then

      USE_EXTERNAL_LIBZ=true

      AC_MSG_RESULT([system])

      if test "x$USE_EXTERNAL_LIBPNG" != "xtrue"; then

        # If we use bundled libpng, we must verify that we have a proper zlib.

        # For instance zlib-ng has had issues with inflateValidate().

        AC_MSG_CHECKING([for system zlib functionality])

        AC_COMPILE_IFELSE(

            [AC_LANG_PROGRAM([#include "zlib.h"], [

                #if ZLIB_VERNUM >= 0x1281

                  inflateValidate(NULL, 0);

                #endif

            ])],

            [AC_MSG_RESULT([ok])],

            [

                AC_MSG_RESULT([not ok])

                AC_MSG_ERROR([System zlib not working correctly])

            ]

        )

      fi

    else

      AC_MSG_RESULT([system not found])

      AC_MSG_ERROR([--with-zlib=system specified, but no zlib found!])

    fi

  else

    AC_MSG_ERROR([Invalid value for --with-zlib: ${with_zlib}, use 'system' or 'bundled'])

  fi

  LIBZ_CFLAGS=""

  LIBZ_LIBS=""

  if test "x$USE_EXTERNAL_LIBZ" = "xfalse"; then

    LIBZ_CFLAGS="$LIBZ_CFLAGS -I$TOPDIR/src/java.base/share/native/libzip/zlib"

  else

    LIBZ_LIBS="-lz"

  fi

  AC_SUBST(USE_EXTERNAL_LIBZ)

  AC_SUBST(LIBZ_CFLAGS)

  AC_SUBST(LIBZ_LIBS)

])

################################################################################

# Setup lcms (Little CMS)

################################################################################

AC_DEFUN_ONCE([LIB_SETUP_LCMS],

[

  AC_ARG_WITH(lcms, [AS_HELP_STRING([--with-lcms],

      [use lcms2 from build system or OpenJDK source (system, bundled) @<:@bundled@:>@])])

  AC_MSG_CHECKING([for which lcms to use])

  DEFAULT_LCMS=bundled

  # If user didn't specify, use DEFAULT_LCMS

  if test "x${with_lcms}" = "x"; then

    with_lcms=${DEFAULT_LCMS}

  fi

  if test "x${with_lcms}" = "xbundled"; then

    USE_EXTERNAL_LCMS=false

    LCMS_CFLAGS=""

    LCMS_LIBS=""

    AC_MSG_RESULT([bundled])

  elif test "x${with_lcms}" = "xsystem"; then

    AC_MSG_RESULT([system])

    PKG_CHECK_MODULES([LCMS], [lcms2], [LCMS_FOUND=yes], [LCMS_FOUND=no])

    if test "x${LCMS_FOUND}" = "xyes"; then

      # PKG_CHECK_MODULES will set LCMS_CFLAGS and LCMS_LIBS

      USE_EXTERNAL_LCMS=true

    else

      AC_MSG_ERROR([--with-lcms=system specified, but no lcms found!])

    fi

  else

    AC_MSG_ERROR([Invalid value for --with-lcms: ${with_lcms}, use 'system' or 'bundled'])

  fi

  AC_SUBST(USE_EXTERNAL_LCMS)

  AC_SUBST(LCMS_CFLAGS)

  AC_SUBST(LCMS_LIBS)

])