#

# Copyright (c) 2011, 2016, 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.

#

# Major library component reside in separate files.

m4_include([lib-alsa.m4])

m4_include([lib-bundled.m4])

m4_include([lib-cups.m4])

m4_include([lib-ffi.m4])

m4_include([lib-freetype.m4])

m4_include([lib-std.m4])

m4_include([lib-x11.m4])

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

# Determine which libraries are needed for this configuration

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

AC_DEFUN_ONCE([LIB_DETERMINE_DEPENDENCIES],

[

  # Check if X11 is needed

  if test "x$OPENJDK_TARGET_OS" = xwindows || test "x$OPENJDK_TARGET_OS" = xmacosx; then

    # No X11 support on windows or macosx

    NEEDS_LIB_X11=false

  else

    if test "x$SUPPORT_HEADFUL" = xno; then

      # No X11 support if building headless-only

      NEEDS_LIB_X11=false

    else

      # All other instances need X11

      NEEDS_LIB_X11=true

    fi

  fi

  # Check if cups is needed

  if test "x$OPENJDK_TARGET_OS" = xwindows; then

    # Windows have a separate print system

    NEEDS_LIB_CUPS=false

  else

    NEEDS_LIB_CUPS=true

  fi

  # Check if freetype is needed

  if test "x$OPENJDK" = "xtrue"; then

    NEEDS_LIB_FREETYPE=true

  else

    NEEDS_LIB_FREETYPE=false

  fi

  # Check if alsa is needed

  if test "x$OPENJDK_TARGET_OS" = xlinux; then

    NEEDS_LIB_ALSA=true

  else

    NEEDS_LIB_ALSA=false

  fi

  # Check if ffi is needed

  if test "x$JVM_VARIANT_ZERO" = xtrue || test "x$JVM_VARIANT_ZEROSHARK" = xtrue; then

    NEEDS_LIB_FFI=true

  else

    NEEDS_LIB_FFI=false

  fi

])

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

# Parse library options, and setup needed libraries

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

AC_DEFUN_ONCE([LIB_SETUP_LIBRARIES],

[

  LIB_SETUP_STD_LIBS

  LIB_SETUP_X11

  LIB_SETUP_CUPS

  LIB_SETUP_FREETYPE

  LIB_SETUP_ALSA

  LIB_SETUP_LIBFFI

  LIB_SETUP_LLVM

  LIB_SETUP_BUNDLED_LIBS

  LIB_SETUP_MISC_LIBS

])

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

# Setup llvm (Low-Level VM)

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

AC_DEFUN_ONCE([LIB_SETUP_LLVM],

[

  if test "x$JVM_VARIANT_ZEROSHARK" = xtrue; then

    AC_CHECK_PROG([LLVM_CONFIG], [llvm-config], [llvm-config])

    if test "x$LLVM_CONFIG" != xllvm-config; then

      AC_MSG_ERROR([llvm-config not found in $PATH.])

    fi

    llvm_components="jit mcjit engine nativecodegen native"

    unset LLVM_CFLAGS

    for flag in $("$LLVM_CONFIG" --cxxflags); do

      if echo "${flag}" | grep -q '^-@<:@ID@:>@'; then

        if test "${flag}" != "-D_DEBUG" ; then

          if test "${LLVM_CFLAGS}" != "" ; then

            LLVM_CFLAGS="${LLVM_CFLAGS} "

          fi

          LLVM_CFLAGS="${LLVM_CFLAGS}${flag}"

        fi

      fi

    done

    llvm_version=$("${LLVM_CONFIG}" --version | sed 's/\.//; s/svn.*//')

    LLVM_CFLAGS="${LLVM_CFLAGS} -DSHARK_LLVM_VERSION=${llvm_version}"

    unset LLVM_LDFLAGS

    for flag in $("${LLVM_CONFIG}" --ldflags); do

      if echo "${flag}" | grep -q '^-L'; then

        if test "${LLVM_LDFLAGS}" != ""; then

          LLVM_LDFLAGS="${LLVM_LDFLAGS} "

        fi

        LLVM_LDFLAGS="${LLVM_LDFLAGS}${flag}"

      fi

    done

    unset LLVM_LIBS

    for flag in $("${LLVM_CONFIG}" --libs ${llvm_components}); do

      if echo "${flag}" | grep -q '^-l'; then

        if test "${LLVM_LIBS}" != ""; then

          LLVM_LIBS="${LLVM_LIBS} "

        fi

        LLVM_LIBS="${LLVM_LIBS}${flag}"

      fi

    done

    # Due to https://llvm.org/bugs/show_bug.cgi?id=16902, llvm does not

    # always properly detect -ltinfo

    LLVM_LIBS="${LLVM_LIBS} -ltinfo"

    AC_SUBST(LLVM_CFLAGS)

    AC_SUBST(LLVM_LDFLAGS)

    AC_SUBST(LLVM_LIBS)

  fi

])

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

# Setup various libraries, typically small system libraries

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

AC_DEFUN_ONCE([LIB_SETUP_MISC_LIBS],

[

  # Setup libm (the maths library)

  if test "x$OPENJDK_TARGET_OS" != "xwindows"; then

    AC_CHECK_LIB(m, cos, [], [

        AC_MSG_NOTICE([Maths library was not found])

    ])

    LIBM="-lm"

  else

    LIBM=""

  fi

  AC_SUBST(LIBM)

  # Setup libdl (for dynamic library loading)

  save_LIBS="$LIBS"

  LIBS=""

  AC_CHECK_LIB(dl, dlopen)

  LIBDL="$LIBS"

  AC_SUBST(LIBDL)

  LIBS="$save_LIBS"

  # Deprecated libraries, keep the flags for backwards compatibility

  if test "x$OPENJDK_TARGET_OS" = "xwindows"; then

    BASIC_DEPRECATED_ARG_WITH([dxsdk])

    BASIC_DEPRECATED_ARG_WITH([dxsdk-lib])

    BASIC_DEPRECATED_ARG_WITH([dxsdk-include])

  fi

  # Control if libzip can use mmap. Available for purposes of overriding.

  LIBZIP_CAN_USE_MMAP=true

  AC_SUBST(LIBZIP_CAN_USE_MMAP)

])