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configure.in
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# configure.in --- xscreensaver, Copyright (c) 1997-2005 Jamie Zawinski.
#
AC_PREREQ(2.52)
AC_INIT(driver/subprocs.c)
AC_CONFIG_HEADER(config.h)
echo "current directory: `pwd`"
echo "command line was: $0 $@"
###############################################################################
#
# Autoheader stuff
#
###############################################################################
AH_TOP([
/* config.h.in --- xscreensaver, Copyright (c) 1998-2000 Jamie Zawinski.
*
* The best way to set these parameters is by running the included `configure'
* script. That examines your system, and generates `config.h' from
* `config.h.in'.
*
* If something goes very wrong, you can edit `config.h' directly, but beware
* that your changes will be lost if you ever run `configure' again.
*/
])
AH_TEMPLATE([HAVE_READ_DISPLAY_EXTENSION],
[Define this if you have the XReadDisplay extension (I think
this is an SGI-only thing; it's in
<X11/extensions/readdisplay.h>.) A few of the screenhacks will
take advantage of this if it's available.])
AH_TEMPLATE([HAVE_XHPDISABLERESET],
[Define this if you have the XHPDisableReset function (an HP only
thing which allows the Ctrl-Sh-Reset key sequence to be
temporarily disabled.)])
# This only ever existed in X11R4 and X11R5.
#AH_TEMPLATE([HAVE_XIDLE_EXTENSION],
# [Define this if you have the XIDLE extension installed. If you
# have the XIDLE extension, this is recommended. (You have this
# extension if the file /usr/include/X11/extensions/xidle.h
# exists.) Turning on this flag lets XScreenSaver work better with
# servers which support this extension; but it will still work
# with servers which do not suport it, so it's a good idea to
# compile in support for it if you can.])
# Using this extension will crash your X server and make fading not work.
#AH_TEMPLATE([HAVE_MIT_SAVER_EXTENSION],
# [Define this if you have the MIT-SCREEN-SAVER extension
# installed. See the caveats about this extension, above.
# (It's available if /usr/include/X11/extensions/scrnsaver.h
# exists.)])
# This only ever existed on SGI hardware.
#AH_TEMPLATE([HAVE_SGI_SAVER_EXTENSION],
# [Define this if you have the SGI SCREEN_SAVER extension. This is
# standard on Irix systems, and not available elsewhere.])
# This only ever existed on SGI hardware.
#AH_TEMPLATE([HAVE_SGI_VC_EXTENSION],
# [Define this if you have the SGI-VIDEO-CONTROL extension. This
# is standard on Irix systems, and not available elsewhere.])
AH_TEMPLATE([HAVE_DPMS_EXTENSION],
[Define this if you have the XDPMS extension. This is standard
on sufficiently-recent XFree86 systems, and possibly elsewhere.
(It's available if the file /usr/include/X11/extensions/dpms.h
exists.)])
AH_TEMPLATE([HAVE_XF86VMODE],
[Define this if you have the functions XF86VidModeGetModeLine()
and XF86VidModeGetViewPort(), in support of virtual desktops
where the X server's root window is bigger than the actual
screen. This is an XFree86 thing, and probably doesn't exist
elsewhere. (It's available if the file
/usr/include/X11/extensions/xf86vmode.h exists.)])
AH_TEMPLATE([HAVE_XF86VMODE_GAMMA],
[Define this if you have the functions XF86VidModeGetGamma() and
XF86VidModeSetGamma(), which allow clients to change the gamma
response of the monitor. This is an XFree86 4.0.x thing, and
probably doesn't exist elsewhere. (It's available if the file
/usr/include/X11/extensions/xf86vmode.h exists and has stuff about
gamma in it.)])
AH_TEMPLATE([HAVE_XF86VMODE_GAMMA_RAMP],
[Define this if you have the functions XF86VidModeGetGammaRamp()
and XF86VidModeSetGammaRamp(), which provide finer-grained
control than XF86VidMode[GS]etGamma(). These appeared in
XFree86 4.1.0.])
AH_TEMPLATE([HAVE_XINERAMA],
[Define this if you have the Xinerama extension. This is
standard on sufficiently-recent XFree86 systems, and possibly
elsewhere. (It's available if the file
/usr/include/X11/extensions/Xinerama.h exists.)])
AH_TEMPLATE([HAVE_XINPUT],
[Define this if you have the Xinput extension. This is
standard since X11R5, and is thus almost everywhere.
(It's available if the file /usr/include/X11/extensions/XInput.h
exists.)])
AH_TEMPLATE([HAVE_XF86MISCSETGRABKEYSSTATE],
[Define this if you have the XF86MiscSetGrabKeysState function
(which allows the Ctrl-Alt-KP_star and Ctrl-Alt-KP_slash key
sequences to be temporarily disabled. Sadly, it doesn't affect
Ctrl-Alt-BS or Ctrl-Alt-F1.)])
AH_TEMPLATE([HAVE_RANDR],
[Define this if you have the Resize and Rotate extension.
This is standard on sufficiently-recent XFree86 systems, and
possibly elsewhere. (It's available if the file
/usr/include/X11/extensions/Xrandr.h exists.)])
AH_TEMPLATE([HAVE_RANDR_12],
[Define this if the RANDR library is version 1.2 or newer.])
AH_TEMPLATE([HAVE_PROC_INTERRUPTS],
[Define this if you have a Linux-like /proc/interrupts file which
can be examined to determine when keyboard activity has
occurred.])
AH_TEMPLATE([HAVE_MOTIF],[Define this if you have Motif.])
AH_TEMPLATE([HAVE_XMCOMBOBOX],
[Define this if you have the XmComboBox Motif widget (Motif 2.0.)])
AH_TEMPLATE([HAVE_GTK],[Define this if you have Gtk (any version.)])
AH_TEMPLATE([HAVE_GTK2],[Define this if you have Gtk 2.x.])
AH_TEMPLATE([HAVE_CRAPPLET],
[Define this if you have Gnome and want to build support for the
xscreensaver control panel in the Gnome Control Center
(gnomecc). (This is needed only with Gtk 1.x.)])
AH_TEMPLATE([HAVE_CRAPPLET_IMMEDIATE],
[Define this if HAVE_CRAPPLET is defined, and the function
capplet_widget_changes_are_immediate() is available.])
AH_TEMPLATE([HAVE_XML],[Define this if you have the XML library.])
AH_TEMPLATE([HAVE_OLD_XML_HEADERS],
[Define this if you have the XML library headers in their old,
non-namespaced location (you lack the gnome-xml/libxml symlink)])
AH_TEMPLATE([HAVE_XPM],
[Define this if you have the XPM library installed. Some of the
demos can make use of this if it is available.])
AH_TEMPLATE([HAVE_GDK_PIXBUF],
[Define this if you have the GDK_Pixbuf library installed. Some
of the demos can make use of this if it is available.])
AH_TEMPLATE([HAVE_GDK_PIXBUF_APPLY_EMBEDDED_ORIENTATION],
[Define this if you have the gdk_pixbuf_apply_embedded_orientation
function (gdk-pixbuf 2.12).])
AH_TEMPLATE([HAVE_JPEGLIB],
[Define this if you have the Independent JPEG Group's JPEG
library installed. Some of the demos can make use of this if it
is available.])
AH_TEMPLATE([HAVE_XMU],
[Define this if you have the Xmu library. This is standard part
of X, and if your vendor doesn't ship it, you should report that
as a bug.])
AH_TEMPLATE([HAVE_GL],
[Define this if you have OpenGL. Some of the demos require it,
so if you don't have it, then those particular demos won't be
built. (This won't affect the screen saver as a whole.)])
AH_TEMPLATE([HAVE_MESA_GL],
[Define this if you have OpenGL, but it's the MesaGL variant.
(The libraries have different names.) (HAVE_GL should be defined
too.)])
AH_TEMPLATE([HAVE_GLBINDTEXTURE],
[Define this if your version of OpenGL has the glBindTexture()
routine. This is the case for OpenGL 1.1, but not for OpenGL
1.0.])
AH_TEMPLATE([HAVE_GLE],
[Define this if you have the -lgle and -lmatrix libraries (GL
extrusion.)])
AH_TEMPLATE([HAVE_GLE3],[Define this if you have the -lgle from GLE version 3])
AH_TEMPLATE([HAVE_JWZGLES],[Define this to target the OpenGL ES 1.x API
instead of OpenGL 1.3.])
AH_TEMPLATE([HAVE_GLBITMAP],[Define this if glBitmap exists.])
AH_TEMPLATE([HAVE_XSHM_EXTENSION],
[Define this if you have the X Shared Memory Extension.])
AH_TEMPLATE([HAVE_DOUBLE_BUFFER_EXTENSION],
[Define this if you have the X Double Buffer Extension.])
AH_TEMPLATE([FORTUNE_PROGRAM],
[Some screenhacks like to run an external program to generate
random pieces of text; set this to the one you like. Note that
this is just the default; X resources can be used to override
it.])
AH_TEMPLATE([PASSWD_HELPER_PROGRAM],
[Set the name of the password helper program, if any])
AH_TEMPLATE([NO_LOCKING],
[Define this to remove the option of locking the screen at all.])
AH_TEMPLATE([ALLOW_ROOT_PASSWD],
[Define this to allow the root password to unlock the screen.])
AH_TEMPLATE([HAVE_KERBEROS],
[Define this if you want to use Kerberos authentication to
lock/unlock the screen instead of your local password. This
currently uses Kerberos V4, but a V5 server with V4
compatibility will work. WARNING: DO NOT USE AFS string-to-key
passwords with this option. This option currently *only* works
with standard Kerberos des_string_to_key. If your password is
an AFS password and not a kerberos password, it will not
authenticate properly. See the comments in driver/kpasswd.c for
more information if you need it.])
AH_TEMPLATE([HAVE_KERBEROS5],
[Define this if you have Kerberos 5, meaning we need to use the
Kerberos 4 compatibility layer.])
AH_TEMPLATE([HAVE_PAM],
[Define this if you want to use PAM (Pluggable Authentication
Modules) to lock/unlock the screen, instead of standard
/etc/passwd authentication.])
AH_TEMPLATE([PAM_SERVICE_NAME],
[If PAM is being used, this is the name of the PAM service that
xscreensaver will authenticate as. The default is
"xscreensaver", which means that the PAM library will look for
an "xscreensaver" line in /etc/pam.conf, or (on recent Linux
systems) will look for a file called /etc/pam.d/xscreensaver.
Some systems might already have a PAM installation that is
configured for xlock, so setting this to "xlock" would also work
in that case.])
AH_TEMPLATE([HAVE_PAM_FAIL_DELAY],
[Define this if you have pam_fail_delay function.
see driver/passwd-pam.c.])
AH_TEMPLATE([PAM_CHECK_ACCOUNT_TYPE],
[Whether PAM should check the result of account modules
when authenticating. Only do this if you have account
configured properly on your system.])
AH_TEMPLATE([PAM_STRERROR_TWO_ARGS],
[Define if you have PAM and pam_strerror() requires two
arguments.])
AH_TEMPLATE([HAVE_SIGTIMEDWAIT],
[Define to 1 if you have the `sigtimedwait' function.])
AH_TEMPLATE([HAVE_SHADOW_PASSWD],
[Define this if your system uses 'shadow' passwords, that is, the
passwords live in /etc/shadow instead of /etc/passwd, and one
reads them with getspnam() instead of getpwnam(). (Note that
SCO systems do some random other thing; others might as well.
See the ifdefs in driver/passwd-pwent.c if you're having trouble
related to reading passwords.)])
AH_TEMPLATE([HAVE_ENHANCED_PASSWD],
[Define this if your system is Digital or SCO Unix with so-called
``Enhanced Security'', that is, the passwords live in
/tcb/files/auth/<x>/<xyz> instead of in /etc/passwd, and one
reads them with getprpwnam() instead of getpwnam().])
AH_TEMPLATE([HAVE_ADJUNCT_PASSWD],
[Define this if your system is Solaris with ``adjunct'' passwords
(this is the version where one gets at the passwords with
getpwanam() instead of getpwnam().) I haven't tested this one,
let me know if it works.])
AH_TEMPLATE([HAVE_HPUX_PASSWD],
[Define this if you are running HPUX with so-called ``Secure
Passwords'' (if you have /usr/include/hpsecurity.h, you probably
have this.) I haven't tested this one, let me know if it works.])
AH_TEMPLATE([HAVE_SYSLOG],
[Define this if you the openlog(), syslog(), and closelog()
functions. This is used for logging failed login attempts.])
AH_TEMPLATE([HAVE_ICMP],
[Define this if you do pings with a `struct icmp' and an
`icmp_id' slot.])
AH_TEMPLATE([HAVE_ICMPHDR],
[Define this if you do pings with a `struct icmphdr' and an
`un.echo.id' slot.])
AH_TEMPLATE([HAVE_GETIFADDRS],
[Define this if you have the getifaddrs() function.])
AH_TEMPLATE([HAVE_FORKPTY],
[Define this if you have the 'forkpty' function:
This allows 'phosphor' and 'apple2' to run curses-based
programs, or be used as terminal windows.])
AH_TEMPLATE([HAVE_GETTIMEOFDAY],
[Define this if you have the gettimeofday function.])
AH_TEMPLATE([GETTIMEOFDAY_TWO_ARGS],
[Define this if gettimeofday() takes two arguments.])
AH_TEMPLATE([XPointer],
[Define this to void* if you're using X11R4 or earlier.])
# After checking to see that --srcdir is correct (which AC_INIT does)
# check for some random other files that come later in the tar file,
# to make sure everything is here.
#
for d in driver utils hacks hacks/glx ; do
f=$srcdir/$d/Makefile.in
if test \! -r $f ; then
echo ""
echo "ERROR: The package is incomplete: $f does not exist."
echo " This probably means that your download was truncated."
echo ""
exit 1
fi
done
###############################################################################
#
# Function to figure out how to run the compiler.
#
###############################################################################
AC_DEFUN(AC_PROG_CC_ANSI,
[AC_REQUIRE([AC_PROG_CC])
if test -z "$GCC"; then
# not using GCC
AC_MSG_CHECKING(how to request ANSI compilation)
case "$host" in
*-hpux* )
AC_MSG_RESULT(HPUX: adding -Ae)
CC="$CC -Ae"
;;
*-aix* )
AC_MSG_RESULT(AIX: adding -qlanglvl=ansi -qhalt=e)
CC="$CC -qlanglvl=ansi -qhalt=e"
;;
*-dec-* )
AC_MSG_RESULT(DEC: adding -std1 -ieee)
CC="$CC -std1"
;;
*)
AC_MSG_RESULT(no idea)
;;
esac
else
# using GCC
case "$host" in
*-solaris*)
AC_MSG_RESULT(Solaris: adding -D__EXTENSIONS__)
CC="$CC -D__EXTENSIONS__"
;;
esac
fi
OBJCC="$CC"
AC_MSG_CHECKING([whether the compiler works on ANSI C])
AC_TRY_RUN([ main(int ac, char **av) { return 0; } ],
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no)
AC_MSG_ERROR(Couldn't build even a trivial ANSI C program: check CC.),
AC_MSG_ERROR(Couldn't build even a trivial ANSI C program: check CC.))
if test -n "$GCC"; then
AC_MSG_RESULT(Turning on gcc compiler warnings.)
CC="$CC -pedantic -Wall -Wstrict-prototypes -Wnested-externs -Wmissing-prototypes"
OBJCC="$OBJCC -Wall"
# As of gcc 3.4, we have "-Wdeclaration-after-statement"
# and so perhaps now we can do without -pedantic?
else
case "$host" in
*-irix5* |*-irix6.[0-3]* )
AC_MSG_RESULT(Turning on SGI compiler warnings.)
CC="$CC -fullwarn -use_readonly_const -rdata_shared -g3"
;;
# *-dec-osf* )
# if test -z "$GCC"; then
# AC_MSG_RESULT(Turning on DEC C compiler warnings.)
# CC="$CC -migrate -w0 -verbose -warnprotos"
# fi
# ;;
esac
fi
])
###############################################################################
#
# Check for availability of various gcc command-line options.
#
###############################################################################
AC_DEFUN(AC_CHECK_GCC_ARG,
[if test -n "$GCC"; then
AC_CACHE_CHECK([whether gcc accepts [$2]],
ac_cv_gcc_accepts_[$1],
[rm -rf conftest.$ac_ext
touch conftest.$ac_ext
if ( ( gcc -c [$2] conftest.$ac_ext -o/dev/null >/dev/null ) 2>&1 | \
grep unrecognized >/dev/null ); then
ac_cv_gcc_accepts_[$1]=no
else
ac_cv_gcc_accepts_[$1]=yes
CC="$CC [$2]"
fi])
ac_gcc_accepts_[$1]="$ac_cv_gcc_accepts_[$1]"
fi
])
AC_DEFUN(AC_NO_LONG_STRING_WARNINGS,
[AC_CHECK_GCC_ARG(no_overlength, -Wno-overlength-strings)])
AC_DEFUN(AC_NO_MISPLACED_DECLARATIONS,
[AC_CHECK_GCC_ARG(no_decl_after, -Wdeclaration-after-statement)])
# Need to disable Objective C extensions in ANSI C on MacOS X to work
# around an Apple-specific gcc bug.
#
AC_DEFUN(AC_NO_OBJECTIVE_C,
[AC_CHECK_GCC_ARG(no_cpp_precomp, -no-cpp-precomp)])
###############################################################################
#
# Function to figure out how to disable // comments in ANSI C code.
#
# (With recent gcc, this is done with "-std=c89". With older gcc, this
# is done by passing "-lang-c89" to cpp, by passing "-Wp,-lang-c89" to
# gcc. Old gcc doesn't support -std, and new gcc doesn't support -lang.
# so much for compatibility!)
#
# UPDATE: apparently there is NO WAY to tell gcc 3.2.2 to require that
# declarations preceed statements, without resorting to "-pedantic".
# This means that there is no way to get gcc3 to issue warnings that
# ensure that your code complies with the ANSI/ISO C89 standard, without
# also drowning in totally useless warnings. Thank you master may I
# have another.
#
# So, I give up, let's just use -pedantic.
#
###############################################################################
AC_DEFUN(AC_GCC_ACCEPTS_STD, [
case "$host" in
*-darwin* )
# Fucking Apple let // comments sneak into OpenGL headers, so
# we *must* allow // comments when compiling on Mac OS 10.6! FUCK!
;;
*)
AC_CHECK_GCC_ARG(std, -std=c89)
;;
esac
])
AC_DEFUN(AC_NO_CPLUSPLUS_COMMENTS_IN_C_CODE,
[if test -n "$GCC"; then
AC_GCC_ACCEPTS_STD
AC_MSG_RESULT(Disabling C++ comments in ANSI C code.)
#
# The reason that // comments are banned from xscreensaver is that gcc is
# basically the only compiler in the world that supports them in C code.
# All other vendors support them only in their C++ compilers, not in their
# ANSI C compilers. This means that it's a portability problem: every time
# these comments have snuck into the xscreensaver source code, I've gotten
# complaints about it the next day. So we turn off support for them in gcc
# as well to prevent them from accidentially slipping in.
#
if test "$ac_gcc_accepts_std" = yes ; then
#
# -std=c89 defines __STRICT_ANSI__, which we don't want.
# (That appears to be the only additional preprocessor symbol
# it defines, in addition to the syntax changes it makes.)
#
# -std=gnu89 is no good, because // comments were a GNU extension
# before they were in the ANSI C 99 spec... (gcc 2.96 permits //
# with -std=gnu89 but not with -std=c89.)
#
# $CC already contains "-std=c89" via AC_GCC_ACCEPTS_STD
CC="$CC -U__STRICT_ANSI__"
# else
# # The old way:
# CC="$CC -Wp,-lang-c89"
fi
fi
])
###############################################################################
#
# Function to figure out how to create directory trees.
#
###############################################################################
AC_DEFUN(AC_PROG_INSTALL_DIRS,
[AC_CACHE_CHECK([whether "\${INSTALL} -d" creates intermediate directories],
ac_cv_install_d_creates_dirs,
[ac_cv_install_d_creates_dirs=no
rm -rf conftestdir
if mkdir conftestdir; then
cd conftestdir 2>/dev/null
${INSTALL} -d `pwd`/dir1/dir2 >/dev/null 2>&1
if test -d dir1/dir2/. ; then
ac_cv_install_d_creates_dirs=yes
fi
cd .. 2>/dev/null
rm -rf conftestdir
fi
])
if test "$ac_cv_install_d_creates_dirs" = no ; then
AC_CACHE_CHECK([whether "mkdir -p" creates intermediate directories],
ac_cv_mkdir_p_creates_dirs,
[ac_cv_mkdir_p_creates_dirs=no
rm -rf conftestdir
if mkdir conftestdir; then
cd conftestdir 2>/dev/null
mkdir -p dir1/dir2 >/dev/null 2>&1
if test -d dir1/dir2/. ; then
ac_cv_mkdir_p_creates_dirs=yes
fi
cd .. 2>/dev/null
rm -rf conftestdir
fi
])
fi
if test "$ac_cv_install_d_creates_dirs" = yes ; then
INSTALL_DIRS='${INSTALL} -d'
elif test "$ac_cv_mkdir_p_creates_dirs" = yes ; then
INSTALL_DIRS='mkdir -p'
else
# any other ideas?
INSTALL_DIRS='${INSTALL} -d'
fi
])
###############################################################################
#
# Function to check whether gettimeofday() exists, and how to call it.
# This may define HAVE_GETTIMEOFDAY and GETTIMEOFDAY_TWO_ARGS.
#
###############################################################################
AC_DEFUN(AC_GETTIMEOFDAY_ARGS,
[AC_MSG_CHECKING(how to call gettimeofday)
AC_CACHE_VAL(ac_cv_gettimeofday_args,
[AC_TRY_COMPILE([#include <stdlib.h>
#include <sys/time.h>],
[struct timeval tv; struct timezone tzp;
gettimeofday(&tv, &tzp);],
[ac_gettimeofday_args=2],
[AC_TRY_COMPILE([#include <stdlib.h>
#include <sys/time.h>],
[struct timeval tv; gettimeofday(&tv);],
[ac_gettimeofday_args=1],
[ac_gettimeofday_args=0])])
ac_cv_gettimeofday_args=$ac_gettimeofday_args])
ac_gettimeofday_args=$ac_cv_gettimeofday_args
if test "$ac_gettimeofday_args" = 1 ; then
AC_DEFINE(HAVE_GETTIMEOFDAY)
AC_MSG_RESULT(one argument)
elif test "$ac_gettimeofday_args" = 2 ; then
AC_DEFINE(HAVE_GETTIMEOFDAY)
AC_DEFINE(GETTIMEOFDAY_TWO_ARGS)
AC_MSG_RESULT(two arguments)
else
AC_MSG_RESULT(unknown)
fi
])
###############################################################################
#
# Function to find perl5 (defines PERL and PERL_VERSION.)
#
###############################################################################
# M4 sucks!! perl sucks too!!
changequote(X,Y)
perl_version_cmd='print $]'
changequote([,])
AC_DEFUN(AC_PROG_PERL,
[AC_PATH_PROGS(PERL, [perl5 perl],,)
if test -z "$PERL" ; then
PERL_VERSION=0
else
AC_CACHE_CHECK([perl version], ac_cv_perl_version,
[ac_cv_perl_version=`$PERL -e "$perl_version_cmd"`])
PERL_VERSION=$ac_cv_perl_version
fi
])
###############################################################################
#
# Function to demand "bc". Losers.
#
###############################################################################
AC_DEFUN(AC_DEMAND_BC,
[ac_bc_result=`echo 6+9 | bc 2>/dev/null`
AC_MSG_CHECKING([for bc])
if test "$ac_bc_result" = "15" ; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
echo ''
AC_MSG_ERROR([Your system doesn't have \"bc\", which has been a standard
part of Unix since the 1970s. Come back when your vendor
has grown a clue.])
fi
])
###############################################################################
#
# Functions to check how to do ICMP PING requests.
#
###############################################################################
AC_DEFUN(AC_CHECK_ICMP,
[AC_CACHE_CHECK([for struct icmp], ac_cv_have_icmp,
[AC_TRY_COMPILE([#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <unistd.h>
#include <limits.h>
#include <signal.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <sys/socket.h>
#include <netinet/in_systm.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <netdb.h>],
[struct icmp i;
struct sockaddr s;
struct sockaddr_in si;
struct ip ip;
i.icmp_type = ICMP_ECHO;
i.icmp_code = 0;
i.icmp_cksum = 0;
i.icmp_id = 0;
i.icmp_seq = 0;
si.sin_family = AF_INET;
#if defined(__DECC) || defined(_IP_VHL)
ip.ip_vhl = 0;
#else
ip.ip_hl = 0;
#endif
],
[ac_cv_have_icmp=yes],
[ac_cv_have_icmp=no])])
if test "$ac_cv_have_icmp" = yes ; then
AC_DEFINE(HAVE_ICMP)
fi])
AC_DEFUN(AC_CHECK_ICMPHDR,
[AC_CACHE_CHECK([for struct icmphdr], ac_cv_have_icmphdr,
[AC_TRY_COMPILE([#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <unistd.h>
#include <limits.h>
#include <signal.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <sys/socket.h>
#include <netinet/in_systm.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <netdb.h>],
[struct icmphdr i;
struct sockaddr s;
struct sockaddr_in si;
struct ip ip;
i.type = ICMP_ECHO;
i.code = 0;
i.checksum = 0;
i.un.echo.id = 0;
i.un.echo.sequence = 0;
si.sin_family = AF_INET;
ip.ip_hl = 0;],
[ac_cv_have_icmphdr=yes],
[ac_cv_have_icmphdr=no])])
if test "$ac_cv_have_icmphdr" = yes ; then
AC_DEFINE(HAVE_ICMPHDR)
fi])
###############################################################################
#
# Functions to check for various X11 crap.
#
###############################################################################
# Try and find the app-defaults directory.
# It sucks that autoconf doesn't do this already...
#
AC_DEFUN(AC_PATH_X_APP_DEFAULTS_XMKMF,[
rm -fr conftestdir
if mkdir conftestdir; then
cd conftestdir 2>/dev/null
# Make sure to not put "make" in the Imakefile rules, since we grep it out.
cat > Imakefile <<'EOF'
acfindx:
@echo 'ac_x_app_defaults="${XAPPLOADDIR}"'
EOF
if (xmkmf) >/dev/null 2>&1 && test -f Makefile; then
# GNU make sometimes prints "make[1]: Entering...", which'd confuse us.
eval `${MAKE-make} acfindx 2>/dev/null | grep -v make`
fi
cd .. 2>/dev/null
rm -fr conftestdir
fi])
###############################################################################
#
# Handle the --with-x-app-defaults option HERE
#
###############################################################################
AC_ARG_WITH(x-app-defaults,[],
[ac_cv_x_app_defaults="$withval"],
[eval ac_x_app_defaults="$withval"])
AC_DEFUN(AC_PATH_X_APP_DEFAULTS_DIRECT,[
# Look for the directory under a standard set of common directories.
# Check X11 before X11Rn because it's often a symlink to the current release.
for ac_dir in \
/usr/X11/lib/app-defaults \
/usr/X11R6/lib/app-defaults \
/usr/X11R6/lib/X11/app-defaults \
/usr/X11R5/lib/app-defaults \
/usr/X11R5/lib/X11/app-defaults \
/usr/X11R4/lib/app-defaults \
/usr/X11R4/lib/X11/app-defaults \
\
/usr/lib/X11/app-defaults \
/usr/lib/X11R6/app-defaults \
/usr/lib/X11R5/app-defaults \
/usr/lib/X11R4/app-defaults \
\
/usr/local/X11/lib/app-defaults \
/usr/local/X11R6/lib/app-defaults \
/usr/local/X11R5/lib/app-defaults \
/usr/local/X11R4/lib/app-defaults \
\
/usr/local/lib/X11/app-defaults \
/usr/local/lib/X11R6/app-defaults \
/usr/local/lib/X11R6/X11/app-defaults \
/usr/local/lib/X11R5/app-defaults \
/usr/local/lib/X11R5/X11/app-defaults \
/usr/local/lib/X11R4/app-defaults \
/usr/local/lib/X11R4/X11/app-defaults \
\
/usr/X386/lib/X11/app-defaults \
/usr/x386/lib/X11/app-defaults \
/usr/XFree86/lib/X11/app-defaults \
\
/usr/lib/X11/app-defaults \
/usr/local/lib/X11/app-defaults \
/usr/unsupported/lib/X11/app-defaults \
/usr/athena/lib/X11/app-defaults \
/usr/local/x11r5/lib/X11/app-defaults \
/usr/lpp/Xamples/lib/X11/app-defaults \
/lib/usr/lib/X11/app-defaults \
\
/usr/openwin/lib/app-defaults \
/usr/openwin/lib/X11/app-defaults \
/usr/openwin/share/lib/app-defaults \
/usr/openwin/share/lib/X11/app-defaults \
\
/X11R6/lib/app-defaults \
/X11R5/lib/app-defaults \
/X11R4/lib/app-defaults \
; \
do
if test -d "$ac_dir"; then
ac_x_app_defaults=$ac_dir
break
fi
done
])
AC_DEFUN(AC_PATH_X_APP_DEFAULTS,
[AC_REQUIRE_CPP()
AC_CACHE_CHECK([for X app-defaults directory], ac_cv_x_app_defaults,
[AC_PATH_X_APP_DEFAULTS_XMKMF
if test x"$ac_x_app_defaults" = x; then
AC_PATH_X_APP_DEFAULTS_DIRECT
fi
if test x"$ac_x_app_defaults" = x; then
ac_cv_x_app_defaults="/usr/lib/X11/app-defaults"
else
# Record where we found app-defaults for the cache.
ac_cv_x_app_defaults="$ac_x_app_defaults"
fi])
eval ac_x_app_defaults="$ac_cv_x_app_defaults"])
AC_DEFUN(AC_XPOINTER,
[AC_CACHE_CHECK([for XPointer], ac_cv_xpointer,
[AC_TRY_X_COMPILE([#include <X11/Xlib.h>],
[XPointer foo = (XPointer) 0;],
[ac_cv_xpointer=yes],
[ac_cv_xpointer=no])])
if test "$ac_cv_xpointer" != yes; then
AC_DEFINE(XPointer,[char*])
fi])
# Random special-cases for X on certain pathological OSes.
# You know who you are.
#
AC_DEFUN(AC_X_RANDOM_PATHS,
[case "$host" in
*-hpux*)
# The following arcana was gleaned from conversations with
# Eric Schwartz <erics@col.hp.com>:
#
# On HPUX 10.x, the parts of X that HP considers "standard" live in
# /usr/{include,lib}/X11R6/. The parts that HP doesn't consider
# "standard", notably, Xaw and Xmu, live in /usr/contrib/X11R6/.
# Yet /usr/contrib/X11R6/ comes preinstalled on all HPUX systems.
# Also, there are symlinks from /usr/include/ and /usr/lib/ into
# /usr/{include,lib}/X11R6/, so that (if you don't use Xmu at all)
# you don't need any -I or -L arguments.
#
# On HPUX 9.x, /usr/{include,lib}/X11R5/ and /usr/contrib/X11R5/
# are the same division as 10.x. However, there are no symlinks to
# the X stuff from /usr/include/ and /usr/lib/, so -I and -L
# arguments are always necessary.
#
# However, X11R6 was available on HPUX 9.x as a patch: if that
# patch was installed, then all of X11R6 went in to
# /usr/contrib/X11R6/ (there was no /usr/{include,lib}/X11R6/.)
#
# HPUX 8.x was the same as 9.x, but was X11R4 instead (I don't know
# whether R5 was available as a patch; R6 undoubtedly was not.)
#
# So. We try and use the highest numbered pair of
# /usr/{include,lib}/X11R?/ and /usr/contrib/X11R?/{include,lib}/
# that are available. We do not mix and match different versions
# of X.
#
# Question I still don't know the answer to: (do you?)
#
# * On HPUX 9.x, where /usr/include/X11R5/ was standard, and
# /usr/contrib/X11R6/ could be installed as a patch, what was in
# that contrib directory? Did it contain so-called "standard"
# X11R6, or did it include Xaw and Xmu as well? If the former,
# where did one find Xaw and Xmu on 9.x R6 systems? Would this
# be a situation where one had to reach into the R5 headers and
# libs to find Xmu? That is, must both R6 and R5 directories
# be on the -I and -L lists in that case?
#
for version in X11R6 X11R5 X11R4 ; do
# if either pair of directories exists...
if test -d /usr/include/$version || test -d /usr/contrib/$version/include
then
# if contrib exists, use it...
if test -d /usr/contrib/$version/include ; then
X_CFLAGS="$X_CFLAGS -I/usr/contrib/$version/include"
X_LIBS="$X_LIBS -L/usr/contrib/$version/lib"
fi
# if the "standard" one exists, use it.
if test -d /usr/include/$version ; then
X_CFLAGS="$X_CFLAGS -I/usr/include/$version"
X_LIBS="$X_LIBS -L/usr/lib/$version"
fi
# since at least one of the pair exists, go no farther.
break
fi
done
# Now find Motif. Thanks for not making xmkmf find this by
# default, you losers.
#
if test -d /usr/include/Motif2.1 ; then
X_CFLAGS="$X_CFLAGS -I/usr/include/Motif2.1"
X_LIBS="$X_LIBS -L/usr/lib/Motif2.1"
elif test -d /usr/include/Motif1.2 ; then
X_CFLAGS="$X_CFLAGS -I/usr/include/Motif1.2"
X_LIBS="$X_LIBS -L/usr/lib/Motif1.2"
elif test -d /usr/include/Motif1.1 ; then
X_CFLAGS="$X_CFLAGS -I/usr/include/Motif1.1"
X_LIBS="$X_LIBS -L/usr/lib/Motif1.1"
fi
# Now let's check for the pseudo-standard locations for OpenGL and XPM.
#
if test -d /opt/graphics/OpenGL/include ; then
# HP-UX 10.20 puts it here
X_CFLAGS="-I/opt/graphics/OpenGL/include $X_CFLAGS"
X_LIBS="-L/opt/graphics/OpenGL/lib $X_LIBS"
elif test -d /opt/Mesa/lib ; then
X_CFLAGS="-I/opt/Mesa/include $X_CFLAGS"
X_LIBS="-L/opt/Mesa/lib $X_LIBS"
fi
if test -d /opt/xpm/lib/X11 ; then
X_CFLAGS="-I/opt/xpm/include $X_CFLAGS"
X_LIBS="-L/opt/xpm/lib/X11 $X_LIBS"
fi
# On HPUX, default to installing in /opt/xscreensaver/ instead of
# in /usr/local/, unless there is already an xscreensaver in
# /usr/local/bin/. This can be overridden with the --prefix arg
# to configure. I'm not sure this is the right thing to do, but
# Richard Lloyd says so...
#
if test \! -x /usr/local/bin/xscreensaver ; then
ac_default_prefix=/opt/xscreensaver
fi
;;
*-solaris*)
# Thanks for not making xmkmf find this by default, pinheads.
# And thanks for moving things around again, too. Is this
# really the standard location now? What happened to the
# joke that this kind of thing went in /opt?
# cthomp says "answer: CDE (Common Disorganized Environment)"
#
if test -f /usr/dt/include/Xm/Xm.h ; then
X_CFLAGS="$X_CFLAGS -I/usr/dt/include"
MOTIF_LIBS="$MOTIF_LIBS -L/usr/dt/lib -R/usr/dt/lib"
# Some versions of Slowlaris Motif require -lgen. But not all. Why?
AC_CHECK_LIB(gen, regcmp, [MOTIF_LIBS="$MOTIF_LIBS -lgen"])
fi
;;
*-darwin*)
# On MacOS X (10.x with "fink"), many things are under /sw/.
#
if test -d /sw/include ; then
X_CFLAGS="-I/sw/include $X_CFLAGS"
X_LIBS="-L/sw/lib $X_LIBS"
fi
;;
esac])
AC_DEFUN(AC_CHECK_GETIFADDRS,
[AC_CACHE_CHECK([for getifaddrs], ac_cv_have_getifaddrs,
[AC_TRY_COMPILE([#include <stdlib.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <ifaddrs.h>],
[struct ifaddrs *ifa;
getifaddrs (&ifa);
ifa->ifa_next = 0;
ifa->ifa_addr->sa_family = 0;],
[ac_cv_have_getifaddrs=yes],
[ac_cv_have_getifaddrs=no])])
if test "$ac_cv_have_getifaddrs" = yes ; then
AC_DEFINE(HAVE_GETIFADDRS)
fi])
###############################################################################
#
# Some utility functions to make checking for X things easier.
#
###############################################################################