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AC_PREREQ([2.57])

# Making releases:
# 1. The version is SPICE_MAJOR.SPICE_MINOR.SPICE_MICRO
# 2. It is generated via a two stage process:
#   1. Create a tag
#   2. run configure which calls git-version-gen.
# 3. Follow these rules for setting the next tag (aka tarball version):
#   1. SPICE_MAJOR remains 0 until a major change is done.
#   2. Increment SPICE_MINOR to next even value on a significant release,
#      updating the release schedule: http://www.spice-space.org/page/Releases
#   3. Increment SPICE_MINOR otherwise.
# 4. Follow the libtool manual for the so version:
#  http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html

m4_define([SPICE_CURRENT], [9])
m4_define([SPICE_REVISION], [0])
m4_define([SPICE_AGE], [8])

# Note on the library name on linux (SONAME) produced by libtool (for reference, gleaned
# from looking at libtool 2.4.2)
#
#  libspice-server.so.current-age.age.revision

AC_INIT(spice, [m4_esyscmd(build-aux/git-version-gen .tarball-version)],
        [spice-devel@lists.freedesktop.org], spice)

AC_CONFIG_MACRO_DIR([m4])
AM_CONFIG_HEADER([config.h])
AC_CONFIG_AUX_DIR(.)

# For automake >= 1.12
m4_ifdef([AM_PROG_AR], [AM_PROG_AR])

AM_INIT_AUTOMAKE([dist-bzip2 no-dist-gzip subdir-objects])
AM_MAINTAINER_MODE

AC_PROG_CC
AC_PROG_CC_C99
if test x"$ac_cv_prog_cc_c99" = xno; then
    AC_MSG_ERROR([C99 compiler is required.])
fi
AC_PROG_CXX
AC_PROG_INSTALL
AC_CANONICAL_HOST
AC_PROG_LIBTOOL
AM_PROG_CC_C_O
AC_C_BIGENDIAN
AC_PATH_PROGS(PYTHON, python2 python)
PKG_PROG_PKG_CONFIG

AC_CHECK_HEADERS([sys/time.h])
AC_CHECK_HEADERS([execinfo.h])
AC_CHECK_HEADERS([linux/sockios.h])
AC_FUNC_ALLOCA

AC_DEFINE([__STDC_FORMAT_MACROS],[],[Force definition of format macros for C++])

SPICE_LT_VERSION=m4_format("%d:%d:%d", SPICE_CURRENT, SPICE_REVISION, SPICE_AGE)
AC_SUBST(SPICE_LT_VERSION)

# Check for the CPU we are using
#
AC_MSG_CHECKING(for x86, x86-64 or armv6+ platform)
case $host_cpu in
  i386|i486|i586|i686|i786|k6|k7|armv6|armv6l|armv6hl|armv7|armv7l|armv7hl)
	variant=32
        ;;
  x86_64)
	variant=64
	;;
  *)
	AC_MSG_RESULT(no)
	echo Only x86 and x86-64 are supported
	exit 1
esac
AC_MSG_RESULT($variant bit)
AM_CONDITIONAL([X86_64], [test "$variant" = 64])

AC_MSG_CHECKING([for native Win32])
case "$host" in
  *-*-mingw*)
    os_win32=yes
    ;;
  *)
    os_win32=no
    ;;
esac
AC_MSG_RESULT([$os_win32])

case $host in
  *-*-linux*)
    os_linux=yes
    ;;
esac

dnl =========================================================================
dnl Check OS target

AC_MSG_CHECKING([for some Win32 platform])
case "$host" in
  *-*-mingw*|*-*-cygwin*)
    platform_win32=yes
    ;;
  *)
    platform_win32=no
    ;;
esac
AC_MSG_RESULT([$platform_win32])
if test "$platform_win32" = yes; then
  red_target=windows
else
  red_target=x11
fi

AM_CONDITIONAL(OS_WIN32, test "$os_win32" = "yes")
AM_CONDITIONAL(OS_UNIX, test "$os_win32" != "yes")
AM_CONDITIONAL(OS_LINUX, test "$os_linux" = "yes")

dnl =========================================================================
dnl Check optional features
AC_ARG_ENABLE(gui,
[  --enable-gui         Enable start dialog with CEGUI],,
[enable_gui="no"])
AS_IF([test x"$enable_gui" != "xno"], [enable_gui="yes"])
AM_CONDITIONAL(SUPPORT_GUI, test "x$enable_gui" != "xno")

AC_ARG_ENABLE(opengl,
[  --enable-opengl         Enable opengl requirement / support (not recommended)],,
[enable_opengl="no"])
AS_IF([test x"$enable_opengl" != "xno"], [enable_opengl="yes"])
AM_CONDITIONAL(SUPPORT_GL, test "x$enable_opengl" = "xyes")

AC_ARG_ENABLE(smartcard,
[  --enable-smartcard         Enable network redirection],,
[enable_smartcard="no"])
AS_IF([test x"$enable_smartcard" != "xno"], [enable_smartcard="yes"])
AM_CONDITIONAL(SUPPORT_SMARTCARD, test "x$enable_smartcard" != "xno")
if test "x$enable_smartcard" = "xyes"; then
   AC_DEFINE([USE_SMARTCARD], [1], [Define if supporting smartcard proxying])
fi

AC_ARG_ENABLE(client,
[  --enable-client         Enable spice client],,
[enable_client="no"])
AS_IF([test x"$enable_client" != "xno"], [enable_client="yes"])
AM_CONDITIONAL(SUPPORT_CLIENT, test "x$enable_client" = "xyes")

AC_ARG_ENABLE(automated_tests,
[  --enable-automated-tests     Enable automated tests using snappy (part of spice--gtk)],,
[enable_automated_tests="no"])
AS_IF([test x"$enable_automated_tests" != "xno"], [enable_automated_tests="yes"])
AM_CONDITIONAL(SUPPORT_AUTOMATED_TESTS, test "x$enable_automated_tests" != "xno")


dnl =========================================================================
dnl Check deps

AC_CONFIG_SUBDIRS([spice-common])
COMMON_CFLAGS='-I ${top_srcdir}/spice-common/ -I ${top_srcdir}/spice-common/spice-protocol/'
AC_SUBST(COMMON_CFLAGS)

AC_CHECK_LIBM
AC_SUBST(LIBM)

AC_CHECK_LIB(rt, clock_gettime,
   AC_DEFINE([HAVE_CLOCK_GETTIME], 1, [Defined if we have clock_gettime()])
   LIBRT=-lrt
   )
AC_SUBST(LIBRT)

if test "$red_target" = "windows"; then
	SPICE_NONPKGCONFIG_LIBS+=" -lpthreadGC2 -lversion -lmsimg32 $LIBM"
else
	SPICE_NONPKGCONFIG_LIBS+=" -pthread $LIBM $LIBRT"
fi

dnl The client needs a yield function
AC_MSG_CHECKING(for posix yield function)
for yield_func in pthread_yield pthread_yield_np sched_yield \
					thr_yield; do
    spice_save_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $SPICE_NONPKGCONFIG_LIBS"
    AC_TRY_LINK([#include <pthread.h>],
		[$yield_func()],
		[posix_yield_func="$yield_func"
		break])
    CPPFLAGS="$spice_save_CPPFLAGS"
done
if test x"$posix_yield_func" = xnone; then
    AC_MSG_ERROR([No posix yield function found])
else
    AC_MSG_RESULT($posix_yield_func)
    posix_yield_func="$posix_yield_func()"
fi
AC_DEFINE_UNQUOTED([POSIX_YIELD_FUNC],$posix_yield_func,[The POSIX RT yield function])

SPICE_REQUIRES=""

if test "x$enable_gui" = "xyes" && test "x$enable_client" = "xyes" ; then
    PKG_CHECK_MODULES(CEGUI06, CEGUI-0.6 >= 0.6.0 CEGUI-0.6 < 0.7.0,
    [
        AC_SUBST(CEGUI06_CFLAGS)
        AC_SUBST(CEGUI06_LIBS)
        AC_DEFINE([USE_GUI], [1], [Define to build with CEGUI support])
    ],
    [
        PKG_CHECK_MODULES(CEGUI, CEGUI >= 0.6.0 CEGUI < 0.7.0)
        AC_SUBST(CEGUI_CFLAGS)
        AC_SUBST(CEGUI_LIBS)
        AC_DEFINE([USE_GUI], [1], [Define to build with CEGUI support])
    ])
fi

if test "x$enable_smartcard" = "xyes"; then
    PKG_CHECK_MODULES(CAC_CARD, libcacard >= 0.1.2)
    SMARTCARD_LIBS="$CAC_CARD_LIBS"
    SMARTCARD_CFLAGS="$CAC_CARD_CFLAGS"
    AC_SUBST(SMARTCARD_LIBS)
    AC_SUBST(SMARTCARD_CFLAGS)
    SPICE_REQUIRES+=" libcacard >= 0.1.2"
fi


PKG_CHECK_MODULES([GLIB2], [glib-2.0 >= 2.22])
SPICE_REQUIRES+=" glib-2.0 >= 2.22"

PKG_CHECK_MODULES(PIXMAN, pixman-1 >= 0.17.7)
AC_SUBST(PIXMAN_CFLAGS)
AC_SUBST(PIXMAN_LIBS)
SPICE_REQUIRES+=" pixman-1 >= 0.17.7"

PKG_CHECK_MODULES(CELT051, celt051 >= 0.5.1.1)
AC_SUBST(CELT051_CFLAGS)
AC_SUBST(CELT051_LIBS)
AC_SUBST(CELT051_LIBDIR)
SPICE_REQUIRES+=" celt051 >= 0.5.1.1"

if test ! -e client/generated_marshallers.cpp; then
AC_MSG_CHECKING([for pyparsing python module])
echo "import pyparsing" | ${PYTHON} - >/dev/null 2>&1
if test $? -ne 0 ; then
    AC_MSG_RESULT([not found])
    AC_MSG_ERROR([pyparsing python module is required to compile this package])
fi
AC_MSG_RESULT([found])
fi

if test "$os_linux" = yes; then
	PKG_CHECK_MODULES(ALSA, alsa)
	AC_SUBST(ALSA_CFLAGS)
	AC_SUBST(ALSA_LIBS)
fi

PKG_CHECK_MODULES(SSL, openssl)
AC_SUBST(SSL_CFLAGS)
AC_SUBST(SSL_LIBS)
SPICE_REQUIRES+=" openssl"

# These are commented out because the gl libraries on RHEL 5 do not have pkgconfig files
#
# PKG_CHECK_MODULES(GL, gl glu)
# AC_SUBST(GL_CFLAGS)
# AC_SUBST(GL_LIBS)
# SPICE_REQUIRES+=" gl glu"

if test "x$enable_opengl" = "xyes"; then
   AC_CHECK_LIB(GL, glBlendFunc, GL_LIBS="$GL_LIBS -lGL", enable_opengl=no)
   AC_CHECK_LIB(GLU, gluSphere, GL_LIBS="$GL_LIBS -lGLU", enable_opengl=no)
   AC_DEFINE([USE_OPENGL], [1], [Define to build with OpenGL support])
   AC_DEFINE([GL_GLEXT_PROTOTYPES], [], [Enable GLExt prototypes])

   if test "x$enable_opengl" = "xno"; then
      AC_MSG_ERROR([GL libraries not available])
   fi
fi

AC_SUBST(GL_CFLAGS)
AC_SUBST(GL_LIBS)
SPICE_NONPKGCONFIG_LIBS+=" $GL_LIBS"

if test "x$red_target" = "xx11" && test "x$enable_client" = "xyes" ; then
	PKG_CHECK_MODULES(XRANDR, xrandr)
	PKG_CHECK_MODULES(XFIXES, xfixes)
	PKG_CHECK_MODULES(MISC_X, x11 xext xrender)
	AC_SUBST(XRANDR_CFLAGS)
	AC_SUBST(XRANDR_LIBS)
	AC_SUBST(MISC_X_CFLAGS)
	AC_SUBST(MISC_X_LIBS)

	PKG_CHECK_MODULES(XRANDR12,
	        xrandr >= 1.2,
	        have_xrandr12=yes,
	        have_xrandr12=no)
else
	have_xrandr12=no
fi

AM_CONDITIONAL([HAVE_XRANDR12], [test "x$have_xrandr12" = "xyes"])
if test "x$have_xrandr12" = "xyes" ; then
  AC_DEFINE([HAVE_XRANDR12], [], [Define if we have XRANDR 12])
fi

# Add parameter for libXinerama
AC_ARG_ENABLE([xinerama],
    [AS_HELP_STRING([--disable-xinerama],
        [disable Xinerama library @<:@default=no@:>@])])

if test "x$enable_xinerama" != "xno"; then
    PKG_CHECK_MODULES(XINERAMA,
        xinerama >= 1.0,
        have_xinerama=yes,
        have_xinerama=no)
else
    have_xinerama=no
fi

if test "x$enable_xinerama" = "xyes" && test "x$have_xinerama" = "xno"; then
    AC_MSG_ERROR([Requested Xinerama library was not found])
fi

AM_CONDITIONAL([HAVE_XINERAMA], [test "x$have_xinerama" = "xyes"])
if test "x$have_xinerama" = "xyes" ; then
  AC_DEFINE([HAVE_XINERAMA], [], [Define if we have Xinerama])
  AC_SUBST(XINERAMA_CFLAGS)
  AC_SUBST(XINERAMA_LIBS)
  SPICE_REQUIRES+=" xinerama"
fi

# Add parameter for (partial) static linkage of spice client.
# this is used to achive single binary package for all (?) distros.
AC_ARG_ENABLE(static-linkage,
[  --enable-static-linkage will generate spice client binary with static linkage to external libraries ],,
[enable_static_linkage="no"])
AS_IF([test x"$enable_static_linkage" != "xno"],
[SPICEC_STATIC_LINKAGE_BSTATIC=["-Wl,-Bstatic"]])

AC_CHECK_LIB(jpeg, jpeg_destroy_decompress,
    AC_MSG_CHECKING([for jpeglib.h])
    AC_TRY_CPP(
[#include <stdio.h>
#undef PACKAGE
#undef VERSION
#undef HAVE_STDLIB_H
#include <jpeglib.h>],
        JPEG_LIBS='-ljpeg'
        AC_MSG_RESULT($jpeg_ok),
	AC_MSG_ERROR([jpeglib.h not found])),
    AC_MSG_ERROR([libjpeg not found]))
AC_SUBST(JPEG_LIBS)

AC_CHECK_LIB(z, deflate, Z_LIBS='-lz', AC_MSG_ERROR([zlib not found]))
AC_SUBST(Z_LIBS)

dnl Cyrus SASL, check from gtk-vnc
AC_ARG_WITH([sasl],
  [AS_HELP_STRING([--with-sasl],
    [use cyrus SASL for authentication @<:@default=check@:>@])],
  [],
  [with_sasl=check])

SASL_CFLAGS=
SASL_LIBS=
enable_sasl=no
if test "x$with_sasl" != "xno"; then
  if test "x$with_sasl" != "xyes" && test "x$with_sasl" != "xcheck"; then
    SASL_CFLAGS="-I$with_sasl"
    SASL_LIBS="-L$with_sasl"
  fi
  fail=0
  old_cflags="$CFLAGS"
  old_libs="$LIBS"
  CFLAGS="$CFLAGS $SASL_CFLAGS"
  LIBS="$LIBS $SASL_LIBS"
  AC_CHECK_HEADER([sasl/sasl.h],[],[
    if test "x$with_sasl" != "xcheck" ; then
        with_sasl=no
    else
        fail=1
    fi])
  if test "x$with_sasl" != "xno" ; then
    AC_CHECK_LIB([sasl2], [sasl_client_init],[with_sasl2=yes],[with_sasl2=no])
  fi
  if test "x$with_sasl2" = "xno" && test "x$with_sasl" != "xno" ; then
    AC_CHECK_LIB([sasl], [sasl_client_init],[with_sasl=yes],[with_sasl=no])
  fi
  if test "x$with_sasl2" = "xyes"; then
    SASL_LIBS="$SASL_LIBS -lsasl2"
  elif test "x$with_sasl" = "xyes"; then
    SASL_LIBS="$SASL_LIBS -lsasl"
  else
    AC_MSG_ERROR([Missing required Cyrus SASL development package])
  fi
  CFLAGS="$old_cflags"
  LIBS="$old_libs"
  if test "x$with_sasl2" = "xyes" || test "x$with_sasl" = "xyes" ; then
    AC_DEFINE_UNQUOTED([HAVE_SASL], 1,
      [whether Cyrus SASL is available for authentication])
    enable_sasl=yes
  fi
fi
AM_CONDITIONAL([HAVE_SASL], [test "x$with_sasl2" = "xyes" || test "x$with_sasl" = "xyes"])
AC_SUBST([SASL_CFLAGS])
AC_SUBST([SASL_LIBS])

if test "x$enable_automated_tests" = "xyes"; then
    AC_MSG_CHECKING([for snappy])
    snappy --help >/dev/null 2>&1
    if test $? -ne 0 ; then
        AC_MSG_RESULT([not found])
        AC_MSG_ERROR([snappy was not found, this module is part of spice-gtk andis required to compile this package])
    fi
    AC_MSG_RESULT([found])
fi

dnl ===========================================================================
dnl check compiler flags

SPICE_COMPILE_WARNINGS
LIBVIRT_LINKER_RELRO
LIBVIRT_LINKER_NO_INDIRECT

# use ximage.h for win32 build if it is found (no package for mingw32 atm)
if test $os_win32 == "yes" ; then
    AC_MSG_CHECKING([for cximage])
    AC_TRY_CPP(
[#include <ximage.h>
int main()
{
 return CXIMAGE_FORMAT_RAW;
)}
],[
 AC_MSG_RESULT([found])
 have_cximage="yes"
]
,[AC_MSG_RESULT([missing])
 CXIMAGE_CFLAGS='-DDISABLE_CXIMAGE'
 have_cximage="no"
 ]
)
fi
AC_SUBST(CXIMAGE_CFLAGS)

# check for windres for mingw32 builds
if test $os_win32 == "yes" ; then
    AC_CHECK_PROGS(WINDRES,i686-pc-mingw32-windres mingw-windres mingw32-windres,false)
    AC_SUBST(WINDRES)
fi

AC_SUBST(WARN_CFLAGS)
AC_SUBST(CFLAGS_CFLAGS)

dnl =========================================================================
dnl -fvisibility stuff

have_gcc4=no
AC_MSG_CHECKING(for -fvisibility)
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#if defined(__GNUC__) && (__GNUC__ >= 4)
#else
error Need GCC 4.0 for visibility
#endif
int main () { return 0; }
])], have_gcc4=yes)

if test "x$have_gcc4" = "xyes" && test ! "$os_win32" = "yes" ; then
   VISIBILITY_HIDDEN_CFLAGS="-fvisibility=hidden"
fi
AC_MSG_RESULT($have_gcc4)
AC_SUBST(VISIBILITY_HIDDEN_CFLAGS)

dnl ensure linker supports ---version-script option before using it
AC_CACHE_CHECK([if -Wl,--version-script works], [spice_cv_ld_version_script],
    [save_LDFLAGS="$LDFLAGS"
     LDFLAGS="$LDFLAGS -Wl,--version-script=$srcdir/server/spice-server.syms"
     AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
        [spice_cv_ld_version_script=yes], [spice_cv_ld_version_script=no])
     LDFLAGS="$save_LDFLAGS"])
AM_CONDITIONAL([HAVE_LD_VERSION_SCRIPT],
    [test x"$spice_cv_ld_version_script" = xyes])

AC_SUBST(SPICE_REQUIRES)
AC_SUBST(SPICE_NONPKGCONFIG_CFLAGS)
AC_SUBST(SPICE_NONPKGCONFIG_LIBS)

AC_SUBST([SPICEC_STATIC_LINKAGE_BSTATIC])

m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])

AC_OUTPUT([
Makefile
spice-server.pc
server/Makefile
server/tests/Makefile
client/Makefile
])

dnl ==========================================================================
echo "

        Spice $VERSION
        ==============

        prefix:                   ${prefix}
        c compiler:               ${CC}
        c++ compiler:             ${CXX}
        python:                   ${PYTHON}

        Build Spice client:       ${enable_client}
" ; if test "x$enable_client" == "xyes"; then echo "\
        Have XRANDR 1.2:          ${have_xrandr12}

        Have Xinerama:            ${have_xinerama}

        Red target:               ${red_target}

        OpenGL:                   ${enable_opengl}

        GUI:                      ${enable_gui}
" ; fi ; echo "\
        Smartcard:                ${enable_smartcard}

        SASL support:             ${enable_sasl}

        Automated tests:          ${enable_automated_tests}
"

if test $os_win32 == "yes" ; then
echo \
"        Copy & Paste Images:     ${have_cximage}
"
fi

echo \
"        Now type 'make' to build $PACKAGE
"