# libguestfs
# Copyright (C) 2009-2010 Red Hat Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

# major/minor/release must be numbers
m4_define([libguestfs_major],   [1])
m4_define([libguestfs_minor],   [0])
m4_define([libguestfs_release], [88])
# extra can be any string
m4_define([libguestfs_extra],   [])

AC_INIT([libguestfs],libguestfs_major.libguestfs_minor.libguestfs_release[]libguestfs_extra)
AC_CONFIG_AUX_DIR([build-aux])
AM_INIT_AUTOMAKE([foreign])

m4_ifndef([AM_SILENT_RULES], [m4_define([AM_SILENT_RULES],[])])
AM_SILENT_RULES([yes]) # make --enable-silent-rules the default.

AC_CONFIG_MACRO_DIR([m4])

dnl Split up the version string.
AC_DEFINE([PACKAGE_VERSION_MAJOR],[libguestfs_major],[Major version number])
AC_DEFINE([PACKAGE_VERSION_MINOR],[libguestfs_minor],[Minor version number])
AC_DEFINE([PACKAGE_VERSION_RELEASE],[libguestfs_release],[Release number])
AC_DEFINE([PACKAGE_VERSION_EXTRA],["libguestfs_extra"],[Extra version string])

gl_EARLY
gl_INIT

AC_PROG_LIBTOOL

dnl Check for basic C environment.
AC_PROG_CC_STDC
AC_PROG_INSTALL
AC_PROG_CPP

AC_ARG_ENABLE([gcc-warnings],
  [AS_HELP_STRING([--enable-gcc-warnings],
                  [turn on lots of GCC warnings (for developers)])],
  [case $enableval in
     yes|no) ;;
     *)      AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
   esac
   gl_gcc_warnings=$enableval],
  [gl_gcc_warnings=no]
)

if test "$gl_gcc_warnings" = yes; then
  gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
  AC_SUBST([WERROR_CFLAGS])

  nw=
  # This, $nw, is the list of warnings we disable.
  nw="$nw -Wdeclaration-after-statement" # too useful to forbid
  nw="$nw -Waggregate-return"       # anachronistic
  nw="$nw -Wc++-compat"             # We don't care about C++ compilers
  nw="$nw -Wundef"                  # Warns on '#if GNULIB_FOO' etc in gnulib
  nw="$nw -Wtraditional"            # Warns on #elif which we use often
  nw="$nw -Wcast-qual"              # Too many warnings for now
  nw="$nw -Wconversion"             # Too many warnings for now
  nw="$nw -Wsystem-headers"         # Don't let system headers trigger warnings
  nw="$nw -Wsign-conversion"        # Too many warnings for now
  nw="$nw -Wtraditional-conversion" # Too many warnings for now
  nw="$nw -Wunreachable-code"       # Too many warnings for now
  nw="$nw -Wpadded"                 # Our structs are not padded
  nw="$nw -Wredundant-decls"        # openat.h declares e.g., mkdirat
  nw="$nw -Wlogical-op"             # any use of fwrite provokes this
  nw="$nw -Wvla"                    # two warnings in mount.c
  # things I might fix soon:
  nw="$nw -Wmissing-format-attribute" # daemon.h's asprintf_nowarn
  nw="$nw -Winline"                 # daemon.h's asprintf_nowarn
  nw="$nw -Wshadow"                 # numerous, plus we're not unanimous
  # ?? -Wstrict-overflow
  nw="$nw -Wunsafe-loop-optimizations" # just a warning that an optimization
                                    # was not possible, safe to ignore
  nw="$nw -Wpacked"                 # Allow attribute((packed)) on structs

  gl_MANYWARN_ALL_GCC([ws])
  gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
  for w in $ws; do
    gl_WARN_ADD([$w])
  done
  gl_WARN_ADD([-Wno-unused-parameter]) # stubs.c
  gl_WARN_ADD([-Wno-jump-misses-init]) # stubs.c
  gl_WARN_ADD([-Wno-unused-variable]) # FIXME: only temporary, for guestfs_protocol.c, etc

  # In spite of excluding -Wlogical-op above, it is enabled, as of
  # gcc 4.5.0 20090517, and it provokes warnings in cat.c, dd.c, truncate.c
  gl_WARN_ADD([-Wno-logical-op])

  gl_WARN_ADD([-fdiagnostics-show-option])

  AC_SUBST([WARN_CFLAGS])

  AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
  AC_DEFINE([_FORTIFY_SOURCE], [2],
    [enable compile-time and run-time bounds-checking, and some warnings])
  AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
fi

AC_C_PROTOTYPES
test "x$U" != "x" && AC_MSG_ERROR([Compiler not ANSI compliant])

AM_PROG_CC_C_O

dnl Work out how to specify the linker script to the linker.
VERSION_SCRIPT_FLAGS=-Wl,--version-script=
`/usr/bin/ld --help 2>&1 | grep -- --version-script >/dev/null` || \
    VERSION_SCRIPT_FLAGS="-Wl,-M -Wl,"
AC_SUBST(VERSION_SCRIPT_FLAGS)

dnl Check support for 64 bit file offsets.
AC_SYS_LARGEFILE

dnl Check sizeof long.
AC_CHECK_SIZEOF([long])

dnl Define a C symbol for the host CPU architecture.
AC_DEFINE_UNQUOTED([host_cpu],["$host_cpu"],[Host architecture.])

dnl Headers.
AC_CHECK_HEADERS([errno.h sys/types.h sys/un.h sys/wait.h sys/socket.h endian.h byteswap.h])

dnl Functions.
AC_CHECK_FUNCS([posix_fallocate])

dnl Build the daemon?
AC_MSG_CHECKING([if we should build the daemon])
AC_ARG_ENABLE([daemon],
        [AS_HELP_STRING([--enable-daemon],
          [enable building the daemon @<:@default=yes@:>@])],
        [],
        [enable_daemon=yes])
AM_CONDITIONAL([ENABLE_DAEMON],[test "x$enable_daemon" = "xyes"])
AC_MSG_RESULT([$enable_daemon])

dnl Build the appliance?
AC_MSG_CHECKING([if we should build the appliance])
AC_ARG_ENABLE([appliance],
        [AS_HELP_STRING([--enable-appliance],
          [enable building the appliance @<:@default=yes@:>@])],
        [],
        [enable_appliance=yes])
AM_CONDITIONAL([ENABLE_APPLIANCE],[test "x$enable_appliance" = "xyes"])
AC_MSG_RESULT([$enable_appliance])

dnl Check for rpcgen and XDR library.  rpcgen is optional.
AC_CHECK_PROG([RPCGEN],[rpcgen],[rpcgen],[no])
AM_CONDITIONAL([HAVE_RPCGEN],[test "x$RPCGEN" != "xno"])
AC_CHECK_LIB([portablexdr],[xdrmem_create],[],[
        AC_SEARCH_LIBS([xdrmem_create],[rpc xdr nsl])
        ])

dnl Check for pod2man and pod2text.
AC_CHECK_PROG([POD2MAN],[pod2man],[pod2man],[no])
test "x$POD2MAN" = "xno" &&
     AC_MSG_ERROR([pod2man must be installed])
AC_CHECK_PROG([POD2TEXT],[pod2text],[pod2text],[no])
test "x$POD2TEXT" = "xno" &&
     AC_MSG_ERROR([pod2text must be installed])

dnl Check for mkisofs.
AC_PATH_PROGS([MKISOFS],[mkisofs],[no],
        [$PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin])
test "x$MKISOFS" = "xno" && AC_MSG_ERROR([mkisofs must be installed])

dnl Check for optional xmllint.
AC_CHECK_PROG([XMLLINT],[xmllint],[xmllint],[no])
AM_CONDITIONAL([HAVE_XMLLINT],[test "x$XMLLINT" != "xno"])

dnl Check for QEMU for running binaries on this $host_cpu, fall
dnl back to basic 'qemu'.  Allow the user to override it.
default_qemu="qemu-kvm qemu-system-$host_cpu qemu"
AC_ARG_WITH([qemu],
        [AS_HELP_STRING([--with-qemu],
          [set default QEMU binary @<:@default=[qemu-kvm] qemu-system-<host> qemu@:>@])],
        [],
        [with_qemu="$default_qemu"])
AC_PATH_PROGS([QEMU],[$with_qemu],[no],
        [$PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/libexec])
test "x$QEMU" = "xno" && AC_MSG_ERROR([qemu must be installed])
AC_DEFINE_UNQUOTED([QEMU],["$QEMU"],[Location of qemu binary.])

dnl Check that the chosen qemu has vmchannel support or we can
dnl fallback to null vmchannel (still using SLIRP).  See the
dnl discussion in the README file.
if test "x$vmchannel_test" != "xno"; then
    AC_MSG_CHECKING([for guestfwd support in $QEMU])
    if $QEMU -nographic --help | grep -sq guestfwd; then
        AC_MSG_RESULT([yes])
        vmchannel_guestfwd=guestfwd
    else
        AC_MSG_RESULT([no])
        # Note that this test must be conditional on the previous
        # test failing.  This is because recent qemu will throw
        # up an SDL window and hang if we try to run this test.
        AC_MSG_CHECKING([for "-net channel" (old guestfwd) support in $QEMU])
        vmchannelout=`$QEMU -nographic -net channel /dev/zero 2>&1 ||:`
        echo "vmchannel test command output: $vmchannelout" >&AS_MESSAGE_LOG_FD
        if echo "$vmchannelout" | grep -sq "vmchannel wrong port number" ; then
            AC_MSG_RESULT([yes])
            vmchannel_guestfwd=net_channel
        else
            AC_MSG_RESULT([no])
            vmchannel_guestfwd=no
        fi
    fi

    AC_MSG_CHECKING([for "-net user" (user mode network) support in $QEMU])
    if $QEMU -nographic --help | grep -sq -- "-net user"; then
        AC_MSG_RESULT([yes])
        vmchannel_net_user=yes
    else
        AC_MSG_RESULT([no])
        vmchannel_net_user=no
    fi

    if test "x$vmchannel_net_user" = "xno" -a "x$vmchannel_guestfwd" = "xno"; then
        AC_MSG_FAILURE(
[I did not find user mode network or vmchannel support in
$QEMU.

Either user mode networking or vmchannel support is vital for
libguestfs to operate.

Please read the relevant section in the README file for more
information about this.

You can override this test by setting the environment variable
vmchannel_test=no  However if you don't have the right support
in your qemu, then this just delays the pain.

If I am using the wrong qemu or you want to compile qemu from source
and install it in another location, then you should configure with
the --with-qemu option.
])
    fi
fi

dnl Set drive interface used by the guestfs_add_drive{,_ro} calls
dnl ('-drive ...,if=...' option to qemu).
dnl
dnl If you encounter performance problems with virtio (RHBZ#509383)
dnl then try '--with-drive-if=ide'.
AC_ARG_WITH([drive-if],
        [AS_HELP_STRING([--with-drive-if],
          [set default driver (ide|scsi|virtio) @<:@default=virtio@:>@])],
        [],
        [with_drive_if=virtio])
AC_DEFINE_UNQUOTED([DRIVE_IF],["$with_drive_if"],[Default drive interface.])

dnl Set interface used by the network.  Normally you should
dnl leave this at the default (virtio) but you can use the
dnl alternative (ne2k_pci) because of bugs in virtio networking
dnl eg. https://bugzilla.redhat.com/show_bug.cgi?id=516022
AC_ARG_WITH([net-if],
        [AS_HELP_STRING([--with-net-if],
          [set default net driver (virtio|ne2k_pci) @<:@default=virtio@:>@])],
        [],
        [with_net_if=virtio])
AC_DEFINE_UNQUOTED([NET_IF],["$with_net_if"],[Default network interface.])

dnl Check for febootstrap etc.
if test "x$enable_appliance" = "xyes"; then
    AC_CHECK_PROG([FEBOOTSTRAP],
                  [febootstrap],[febootstrap],[no])
    if test "x$FEBOOTSTRAP" != "xno"; then
      AC_CHECK_PROG([FEBOOTSTRAP_RUN],
                    [febootstrap-run],[febootstrap-run],[no])
      test "x$FEBOOTSTRAP_RUN" = "xno" && \
          AC_MSG_ERROR([febootstrap-run must be installed])
      AC_CHECK_PROG([FEBOOTSTRAP_INSTALL],
                    [febootstrap-install],[febootstrap-install],[no])
      test "x$FEBOOTSTRAP_INSTALL" = "xno" && \
          AC_MSG_ERROR([febootstrap-install must be installed])
      AC_CHECK_PROG([FEBOOTSTRAP_MINIMIZE],
                    [febootstrap-minimize],[febootstrap-minimize],[no])
      test "x$FEBOOTSTRAP_MINIMIZE" = "xno" && \
          AC_MSG_ERROR([febootstrap-minimize must be installed])
      AC_CHECK_PROG([FEBOOTSTRAP_TO_INITRAMFS],
                    [febootstrap-to-initramfs],[febootstrap-to-initramfs],[no])
      test "x$FEBOOTSTRAP_TO_INITRAMFS" = "xno" && \
          AC_MSG_ERROR([febootstrap-to-initramfs must be installed])

      dnl Check we have fakechroot >= 2.9 (it's an indirect requirement
      dnl of febootstrap, but old versions will fail with yum).
      AC_CHECK_PROG([FAKECHROOT],
                    [fakechroot],[fakechroot],[no])
      test "x$FAKECHROOT" = "xno" && \
         AC_MSG_ERROR([fakechroot must be installed])

      AC_MSG_CHECKING([fakechroot version])
      fakechroot_version=`$FAKECHROOT --version | awk '{print $3}'`
      if test -z "$fakechroot_version"; then
        AC_MSG_RESULT([failed])
        AC_MSG_WARN([fakechroot --version command failed, proceeding anyway])
      else
        AC_MSG_RESULT([$fakechroot_version])
        fakechroot_major=`echo "$fakechroot_version" | awk -F. '{print $1}'`
        fakechroot_minor=`echo "$fakechroot_version" | awk -F. '{print $2}'`
        if test "$fakechroot_major" -lt 2 -o \
            \( "$fakechroot_major" -eq 2 -a "$fakechroot_minor" -lt 9 \); then
          AC_MSG_ERROR([fakechroot version must be >= 2.9])
        fi
      fi
      DIST="REDHAT"
    else
      # check for debootstrap and debirf
      AC_CHECK_PROG([DEBOOTSTRAP],
                    [debootstrap],[debootstrap],[no])
      test "x$DEBOOTSTRAP" = "xno" && \
          AC_MSG_ERROR([Either febootstrap or debootstrap must be installed])
      AC_CHECK_PROG([DEBIRF],[debirf],[debirf],[no])
      test "x$DEBIRF" = "xno" &&
          AC_MSG_ERROR([debirf must be installed])
      DIST="DEBIAN"
      case "$host_cpu" in
      *86)
          DEBIAN_KERNEL_ARCH=486
          ;;
      x86_64)
          DEBIAN_KERNEL_ARCH=amd64
          ;;
      *)
         DEBIAN_KERNEL_ARCH=$host_cpu
         ;;
      esac
      AC_SUBST(DEBIAN_KERNEL_ARCH)
    fi
    AC_SUBST(DIST)

    dnl --with-updates to specify a Fedora updates repository.
    AC_ARG_WITH([updates],
        [AS_HELP_STRING([--with-updates],
          [set name of Fedora updates repository @<:@default=updates-released-f11@:>@])],
        [],
        [with_updates=updates-released-f11])
    UPDATES="$with_updates"
    AC_SUBST(UPDATES)

    dnl --with-mirror to specify a local Fedora mirror.
    AC_ARG_WITH([mirror],
        [AS_HELP_STRING([--with-mirror],
          [set URI of a local Fedora mirror])],
        [],
        [with_mirror=])
    MIRROR="$with_mirror"
    AC_SUBST(MIRROR)
fi

dnl --with-repo to specify a Fedora repository.
AC_ARG_WITH([repo],
        [AS_HELP_STRING([--with-repo],
          [set name of Fedora repository @<:@default=fedora-11@:>@])],
        [],
        [with_repo=fedora-11])
REPO="$with_repo"
AC_SUBST(REPO)
AC_DEFINE_UNQUOTED([REPO],["$REPO"],[Name of Fedora repository.])

dnl Build the supermin appliance?  Please see README file before
dnl enabling this option.
AC_ARG_ENABLE([supermin],
        [AS_HELP_STRING([--enable-supermin],
          [enable supermin appliance (see README) @<:@default=no@:>@])],
        [],
        [enable_supermin=no])
AM_CONDITIONAL([SUPERMIN],[test "x$enable_supermin" = "xyes"])

if test "x$enable_supermin" = "xyes"; then
    dnl Check febootstrap-to-initramfs accepts the --files option
    dnl (febootstrap >= 2.2).
    AC_MSG_CHECKING([for --files support in $FEBOOTSTRAP_TO_INITRAMFS])
    out=`$FEBOOTSTRAP_TO_INITRAMFS 2>&1 ||:`
    echo "febootstrap_to_initramfs test command output: $out" >&AS_MESSAGE_LOG_FD
    if ! echo "$out" | grep -sq -e --files ; then
        AC_MSG_RESULT([no])
        AC_MSG_FAILURE(
[febootstrap-to-initramfs does not support the --files option.

To build the supermin appliance, you need to upgrade to the latest
version of febootstrap.
])
    fi
    AC_MSG_RESULT([yes])

    dnl Check febootstrap-to-initramfs accepts the --nocompress option
    dnl (febootstrap >= 2.3).
    AC_MSG_CHECKING([for --nocompress support in $FEBOOTSTRAP_TO_INITRAMFS])
    out=`$FEBOOTSTRAP_TO_INITRAMFS 2>&1 ||:`
    echo "febootstrap_to_initramfs test command output: $out" >&AS_MESSAGE_LOG_FD
    if ! echo "$out" | grep -sq -e --nocompress ; then
        AC_MSG_RESULT([no])
        AC_MSG_FAILURE(
[febootstrap-to-initramfs does not support the --nocompress option.

To build the supermin appliance, you need to upgrade to the latest
version of febootstrap.
])
    fi
    AC_MSG_RESULT([yes])
fi

dnl Enable packet dumps when in verbose mode.  This generates lots
dnl of debug info, only useful for people debugging the RPC mechanism.
AC_ARG_ENABLE([packet-dump],
        [AS_HELP_STRING([--enable-packet-dump],
          [enable packet dumps in verbose mode @<:@default=no@:>@])],
        [AC_DEFINE([ENABLE_PACKET_DUMP],[1],[Enable packet dumps in verbose mode.])],
        [])

dnl Readline.
AC_ARG_WITH([readline],
    [AS_HELP_STRING([--with-readline],
        [support fancy command line editing @<:@default=check@:>@])],
    [],
    [with_readline=check])

LIBREADLINE=
AS_IF([test "x$with_readline" != xno],
    [AC_CHECK_LIB([readline], [main],
        [AC_SUBST([LIBREADLINE], ["-lreadline -lncurses"])
         AC_DEFINE([HAVE_LIBREADLINE], [1],
                   [Define if you have libreadline])
        ],
        [if test "x$with_readline" != xcheck; then
         AC_MSG_FAILURE(
             [--with-readline was given, but test for readline failed])
         fi
        ], -lncurses)
     old_LIBS="$LIBS"
     LIBS="$LIBS $LIBREADLINE"
     AC_CHECK_FUNCS([append_history completion_matches rl_completion_matches])
     LIBS="$old_LIBS"
    ])

dnl For i18n.
AM_GNU_GETTEXT([external])
AM_GNU_GETTEXT_VERSION([0.17])

dnl hivex library (highly recommended).
dnl This used to be a part of libguestfs, but was spun off into its
dnl own separate upstream project in libguestfs 1.0.85.
HAVE_HIVEX=yes
PKG_CHECK_MODULES([HIVEX], [hivex],,[
        HAVE_HIVEX=no
        AC_MSG_WARN([Hivex library and headers are missing, so optional Windows Registry tools won't be built])])
AM_CONDITIONAL([HAVE_HIVEX],[test "x$HAVE_HIVEX" = "xyes"])
AC_SUBST([HIVEX_CFLAGS])
AC_SUBST([HIVEX_LIBS])

dnl FUSE is optional to build the FUSE module.
HAVE_FUSE=yes
PKG_CHECK_MODULES([FUSE],[fuse],,[
        HAVE_FUSE=no
        AC_MSG_WARN([FUSE library and headers are missing, so optional FUSE module won't be built])])
AM_CONDITIONAL([HAVE_FUSE],[test "x$HAVE_FUSE" = "xyes"])

dnl Check for OCaml (optional, for OCaml bindings).
AC_PROG_OCAML
AC_PROG_FINDLIB
AM_CONDITIONAL([HAVE_OCAML],[test "x$OCAMLC" != "xno" -a "x$OCAMLFIND" != "xno"])

dnl Optional xml-light for running the generator.
OCAML_PKG_xml_light=no
if test "x$OCAMLC" != "xno" -a "x$OCAMLFIND" != "xno"; then
    AC_CHECK_OCAML_PKG([xml-light])
fi
AM_CONDITIONAL([HAVE_XML_LIGHT],[test "x$OCAML_PKG_xml_light" != "xno"])

dnl Build the OCaml viewer example.  This has a lengthy list of
dnl dependencies and we don't attempt to detect them all.  Read
dnl the top of ocaml/examples/viewer.ml before enabling this.
AC_ARG_ENABLE([ocaml-viewer],
        [AS_HELP_STRING([--enable-ocaml-viewer],
          [enable OCaml viewer (see ocaml/examples) @<:@default=no@:>@])],
        [],
        [enable_ocaml_viewer=no])
AM_CONDITIONAL([BUILD_OCAML_VIEWER],[test "x$enable_ocaml_viewer" = "xyes"])

dnl Check for Perl (optional, for Perl bindings).
dnl XXX This isn't quite right, we should check for Perl devel library.
AC_CHECK_PROG([PERL],[perl],[perl],[no])

dnl Check for Perl modules that must be present to compile and
dnl test the Perl bindings.
missing_perl_modules=no
for pm in Test::More Test::Pod Test::Pod::Coverage ExtUtils::MakeMaker; do
    AC_MSG_CHECKING([for $pm])
    if ! perl -M$pm -e1 >/dev/null 2>&1; then
        AC_MSG_RESULT([no])
        missing_perl_modules=yes
    else
        AC_MSG_RESULT([yes])
    fi
done
if test "x$missing_perl_modules" = "xyes"; then
    AC_MSG_WARN([some Perl modules required to compile or test the Perl bindings are missing])
fi

AM_CONDITIONAL([HAVE_PERL],
    [test "x$PERL" != "xno" -a "x$missing_perl_modules" != "xyes"])

dnl Check for Python (optional, for Python bindings).
AC_CHECK_PROG([PYTHON],[python],[python],[no])

PYTHON_PREFIX=
PYTHON_VERSION=
PYTHON_INCLUDEDIR=
PYTHON_SITE_PACKAGES=

if test "x$PYTHON" != "xno"; then
    PYTHON_PREFIX=`$PYTHON -c "import sys; print sys.prefix"`
    PYTHON_VERSION=`$PYTHON -c "import sys; print sys.version[[0:3]]"`
    for d in \
        $PYTHON_PREFIX/include/python$PYTHON_VERSION \
        /usr/include/python$PYTHON_VERSION \
        /usr/local/include/python$PYTHON_VERSION
    do
        AC_MSG_CHECKING([Python.h in $d])
        if test -r "$d/Python.h"; then
            AC_MSG_RESULT([found])
            PYTHON_INCLUDEDIR=$d
            break
        fi
        AC_MSG_RESULT([not found])
    done
    for d in \
        $PYTHON_PREFIX/lib64/python$PYTHON_VERSION/site-packages \
        $PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages \
        /usr/lib64/python$PYTHON_VERSION/site-packages \
        /usr/lib/python$PYTHON_VERSION/site-packages \
        /usr/local/lib/python$PYTHON_VERSION/site-packages
    do
        AC_MSG_CHECKING([for $d])
        if test -d "$d"; then
            AC_MSG_RESULT([found])
            PYTHON_SITE_PACKAGES=$d
            break
        fi
        AC_MSG_RESULT([not found])
    done
fi

AC_SUBST(PYTHON_PREFIX)
AC_SUBST(PYTHON_VERSION)
AC_SUBST(PYTHON_INCLUDEDIR)
AC_SUBST(PYTHON_SITE_PACKAGES)

AM_CONDITIONAL([HAVE_PYTHON],
    [test "x$PYTHON_INCLUDEDIR" != "x" -a "x$PYTHON_SITE_PACKAGES" != "x"])

dnl Check for Ruby and rake (optional, for Ruby bindings).
AC_CHECK_LIB([ruby],[ruby_init],[HAVE_LIBRUBY=1],[HAVE_LIBRUBY=0])
AC_CHECK_PROG([RAKE],[rake],[rake],[no])

AM_CONDITIONAL([HAVE_RUBY],
    [test "x$RAKE" != "xno" -a -n "$HAVE_LIBRUBY"])

dnl Check for Java.
AC_ARG_WITH(java_home,
    [AS_HELP_STRING([--with-java-home],
        [specify path to JDK directory @<:@default=check@:>@])],
    [],
    [with_java_home=check])

if test "x$with_java_home" != "xno"; then
    if test "x$with_java_home" != "xyes" -a "x$with_java_home" != "xcheck"
    then
        # Reject unsafe characters in $JAVA_HOME
        jh_lf='
'
        case $JAVA_HOME in
          *[\\\"\#\$\&\'\`$jh_lf\ \	]*)
            AC_MSG_FAILURE([unsafe \$JAVA_HOME directory (use --with-java-home=no to disable Java support)]);;
        esac
        if test -d "$with_java_home"; then
            JAVA_HOME="$with_java_home"
        else
            AC_MSG_FAILURE([$with_java_home is not a directory (use --with-java-home=no to disable Java support)])
        fi
    fi

    if test "x$JAVA_HOME" = "x"; then
        # Look for Java in some likely locations.
        for d in \
            /usr/lib/jvm/java \
            /usr/lib/jvm/java-6-openjdk
        do
            if test -d $d -a -f $d/bin/java; then
                JAVA_HOME=$d
                break
            fi
        done
    fi

    if test "x$JAVA_HOME" != "x"; then
        AC_MSG_CHECKING(for JDK in $JAVA_HOME)
        if test ! -x "$JAVA_HOME/bin/java"; then
            AC_MSG_ERROR([missing $JAVA_HOME/bin/java binary (use --with-java-home=no to disable Java support)])
        else
            JAVA="$JAVA_HOME/bin/java"
        fi
        if test ! -x "$JAVA_HOME/bin/javac"; then
            AC_MSG_ERROR([missing $JAVA_HOME/bin/javac binary])
        else
            JAVAC="$JAVA_HOME/bin/javac"
        fi
        if test ! -x "$JAVA_HOME/bin/javah"; then
            AC_MSG_ERROR([missing $JAVA_HOME/bin/javah binary])
        else
            JAVAH="$JAVA_HOME/bin/javah"
        fi
        if test ! -x "$JAVA_HOME/bin/javadoc"; then
            AC_MSG_ERROR([missing $JAVA_HOME/bin/javadoc binary])
        else
            JAVADOC="$JAVA_HOME/bin/javadoc"
        fi
        if test ! -x "$JAVA_HOME/bin/jar"; then
            AC_MSG_ERROR([missing $JAVA_HOME/bin/jar binary])
        else
            JAR="$JAVA_HOME/bin/jar"
        fi
        java_version=`$JAVA -version 2>&1 | grep "java version"`
        AC_MSG_RESULT(found $java_version in $JAVA_HOME)

        dnl Find jni.h.
        AC_MSG_CHECKING([for jni.h])
        if test -f "$JAVA_HOME/include/jni.h"; then
            JNI_CFLAGS="-I$JAVA_HOME/include"
        else
            if test "`find $JAVA_HOME -name jni.h`" != ""; then
                head=`find $JAVA_HOME -name jni.h | tail -1`
                dir=`dirname "$head"`
                JNI_CFLAGS="-I$dir"
            else
                AC_MSG_FAILURE([missing jni.h header file])
            fi
        fi
        AC_MSG_RESULT([$JNI_CFLAGS])

        dnl Find jni_md.h.
        AC_MSG_CHECKING([for jni_md.h])
        case "$build_os" in
        *linux*) system="linux" ;;
        *SunOS*) system="solaris" ;;
        *cygwin*) system="win32" ;;
        *) system="$build_os" ;;
        esac
        if test -f "$JAVA_HOME/include/$system/jni_md.h"; then
            JNI_CFLAGS="$JNI_CFLAGS -I$JAVA_HOME/include/$system"
        else
            if test "`find $JAVA_HOME -name jni_md.h`" != ""; then
                head=`find $JAVA_HOME -name jni_md.h | tail -1`
                dir=`dirname "$head"`
                JNI_CFLAGS="$JNI_CFLAGS -I$dir"
            else
                AC_MSG_FAILURE([missing jni_md.h header file])
            fi
        fi
        AC_MSG_RESULT([$JNI_CFLAGS])

        dnl Need extra version flag?
        AC_MSG_CHECKING([extra javac flags])
        JAVAC_FLAGS=
        javac_version=`$JAVAC -version 2>&1`
        case "$javac_version" in
        *Eclipse*)
            JAVAC_FLAGS="-source 1.5" ;;
        esac
        AC_MSG_RESULT([$JAVAC_FLAGS])

        dnl Where to install jarfiles.
        dnl XXX How to make it configurable?
        JAR_INSTALL_DIR=\${prefix}/share/java
        JNI_INSTALL_DIR=\${libdir}

        dnl JNI version.
        jni_major_version=`echo "$VERSION" | awk -F. '{print $1}'`
        jni_minor_version=`echo "$VERSION" | awk -F. '{print $2}'`
        jni_micro_version=`echo "$VERSION" | awk -F. '{print $3}'`
        JNI_VERSION_INFO=`expr "$jni_major_version" + "$jni_minor_version"`":$jni_micro_version:$jni_minor_version"
    fi
fi

AC_SUBST(JAVA_HOME)
AC_SUBST(JAVA)
AC_SUBST(JAVAC)
AC_SUBST(JAVAH)
AC_SUBST(JAVADOC)
AC_SUBST(JAR)
AC_SUBST(JNI_CFLAGS)
AC_SUBST(JAVAC_FLAGS)
AC_SUBST(JAR_INSTALL_DIR)
AC_SUBST(JNI_INSTALL_DIR)
AC_SUBST(JNI_VERSION_INFO)

AM_CONDITIONAL([HAVE_JAVA],[test -n "$JAVAC"])

dnl Check for Haskell (GHC).
AC_CHECK_PROG([GHC],[ghc],[ghc],[no])

AM_CONDITIONAL([HAVE_HASKELL],
    [test "x$GHC" != "xno"])

dnl Check for Perl modules needed by virt-df, inspector, etc.
missing_perl_modules=no
for pm in Pod::Usage Getopt::Long Sys::Virt Data::Dumper XML::Writer Locale::TextDomain Win::Hivex Win::Hivex::Regedit; do
    AC_MSG_CHECKING([for $pm])
    if ! perl -M$pm -e1 >/dev/null 2>&1; then
        AC_MSG_RESULT([no])
        missing_perl_modules=yes
    else
        AC_MSG_RESULT([yes])
    fi
done
if test "x$missing_perl_modules" = "xyes"; then
    AC_MSG_WARN([some Perl modules required to compile virt-inspector and the other virt-* tools are missing])
fi

AM_CONDITIONAL([HAVE_INSPECTOR],
    [test "x$PERL" != "xno" -a "x$missing_perl_modules" != "xyes"])
AM_CONDITIONAL([HAVE_TOOLS],
    [test "x$PERL" != "xno" -a "x$missing_perl_modules" != "xyes"])

dnl Library versioning.
MAX_PROC_NR=`cat $srcdir/src/MAX_PROC_NR`
AC_SUBST(MAX_PROC_NR)

dnl Run in subdirs.
if test "x$enable_daemon" = "xyes"; then
    AC_CONFIG_SUBDIRS([daemon])
fi

dnl Produce output files.
AC_CONFIG_HEADERS([config.h])
dnl http://www.mail-archive.com/automake@gnu.org/msg10204.html
AC_CONFIG_FILES([appliance/update.sh],
                [chmod +x appliance/update.sh])
AC_CONFIG_FILES([appliance/supermin-split.sh],
                [chmod +x appliance/supermin-split.sh])
AC_CONFIG_FILES([appliance/supermin-make.sh],
                [chmod +x appliance/supermin-make.sh])
AC_CONFIG_FILES([Makefile
                 src/Makefile fish/Makefile po/Makefile.in examples/Makefile
                 appliance/Makefile
                 appliance/debian/debirf.conf
                 images/Makefile
                 capitests/Makefile
                 regressions/Makefile
                 test-tool/Makefile
                 ocaml/Makefile ocaml/examples/Makefile
                 perl/Makefile
                 python/Makefile
                 ruby/Makefile ruby/Rakefile
                 java/Makefile
                 haskell/Makefile
                 inspector/Makefile
                 tools/Makefile
                 libguestfs.pc
                 gnulib/lib/Makefile
                 gnulib/tests/Makefile
                 fuse/Makefile
                 ocaml/META perl/Makefile.PL])
AC_OUTPUT

dnl Produce summary.
echo
echo
echo "------------------------------------------------------------"
echo "Thank you for downloading $PACKAGE_STRING"
echo
echo "This is how we have configured the optional components for you today:"
echo
echo    "Daemon .............................. $enable_daemon"
echo    "Appliance ........................... $enable_appliance"
echo    "QEMU ................................ $QEMU"
echo -n "OCaml bindings ...................... "
if test "x$HAVE_OCAML_TRUE" = "x"; then echo "yes"; else echo "no"; fi
echo -n "Perl bindings ....................... "
if test "x$HAVE_PERL_TRUE" = "x"; then echo "yes"; else echo "no"; fi
echo -n "Python bindings ..................... "
if test "x$HAVE_PYTHON_TRUE" = "x"; then echo "yes"; else echo "no"; fi
echo -n "Ruby bindings ....................... "
if test "x$HAVE_RUBY_TRUE" = "x"; then echo "yes"; else echo "no"; fi
echo -n "Java bindings ....................... "
if test "x$HAVE_JAVA_TRUE" = "x"; then echo "yes"; else echo "no"; fi
echo -n "Haskell bindings .................... "
if test "x$HAVE_HASKELL_TRUE" = "x"; then echo "yes"; else echo "no"; fi
echo -n "virt-inspector ...................... "
if test "x$HAVE_INSPECTOR_TRUE" = "x"; then echo "yes"; else echo "no"; fi
echo -n "virt-* tools ........................ "
if test "x$HAVE_TOOLS_TRUE" = "x"; then echo "yes"; else echo "no"; fi
echo "supermin appliance .................. $enable_supermin"
echo "FUSE filesystem ..................... $HAVE_FUSE"
echo
echo "If any optional component is configured 'no' when you expected 'yes'"
echo "then you should check the preceeding messages."
echo
echo "Please report bugs back to the mailing list:"
echo "http://www.redhat.com/mailman/listinfo/libguestfs"
echo
echo "Next you should type 'make' to build the package,"
echo "then 'make check' to run the tests."
echo "------------------------------------------------------------"