X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=configure.in;h=be98708834421d676a1d1a7ced0448feda9ce4b0;hb=481b95e2617b69e6fd4444432747d7e1e0c3dc85;hp=51cefe54655f6150f682b7c69b3d2cd36e49018c;hpb=f3e0240915ed9f9b3a61781f5c7002d587563fe0;p=xscreensaver diff --git a/configure.in b/configure.in index 51cefe54..be987088 100644 --- a/configure.in +++ b/configure.in @@ -18,6 +18,10 @@ if test -z "$GCC"; then AC_MSG_RESULT(AIX: adding -qlanglvl=ansi -qhalt=e) CC="$CC -qlanglvl=ansi -qhalt=e" ;; + +# NOTE: for Digital, need to add -std1 to get ANSI, but I'm not sure +# yet what $host pattern we should be testing for... + *) AC_MSG_RESULT(no idea) ;; @@ -60,21 +64,20 @@ AC_HEADER_DIRENT AC_TYPE_MODE_T AC_TYPE_PID_T -AC_TYPE_SIGNAL AC_TYPE_SIZE_T - +AC_TYPE_SIGNAL AC_MSG_CHECKING(how to call gettimeofday) AC_CACHE_VAL(ac_cv_gettimeofday_args, [AC_TRY_COMPILE([#include #include ], - [struct timeval tv; gettimeofday(&tv);], - [ac_gettimeofday_args=1], + [struct timeval tv; struct timezone tzp; + gettimeofday(&tv, &tzp);], + [ac_gettimeofday_args=2], [AC_TRY_COMPILE([#include #include ], - [struct timeval tv; struct timezone tzp; - gettimeofday(&tv, &tzp);], - [ac_gettimeofday_args=2], + [struct timeval tv; gettimeofday(&tv);], + [ac_gettimeofday_args=1], [ac_gettimeofday_args=0])]) ac_cv_gettimeofday_args=$ac_gettimeofday_args]) ac_gettimeofday_args=$ac_cv_gettimeofday_args @@ -91,6 +94,8 @@ fi AC_CHECK_FUNCS(select fcntl uname nice setpriority getcwd getwd putenv) +AC_CHECK_FUNCS(sigaction) + AC_CHECK_HEADERS(unistd.h) dnl /usr/local/src/ssh-1.2.17/putenv.c -- AC_REPLACE_FUNCS(putenv) @@ -104,22 +109,26 @@ Installation options: specify the name of the subdirectory. For example, --exec-prefix=/usr/local/bin --enable-subdir=demos would put xscreensaver in /usr/local/bin/, and would - put the demos in /usr/local/bin/demos/. Note that if - you do this, you must make sure that the directory - is on your \$PATH before xscreensaver is started: the - directory name is not hardcoded into the program. - This merely sets the default installation location. + put the demos in /usr/local/bin/demos/. (If DIR + begins with /, then bindir will not be prepended.) --disable-subdir Just put the demos in \`bindir' (this is the default.) ], [enable_subdir="$enableval"],[enable_subdir=no]) if test x"$enable_subdir" = xno; then - HACKDIR='$(bindir)' + HACKDIR='${bindir}' elif test x"$enable_subdir" = xyes -o x"$enable_subdir" = x ; then echo "error: must be a subdirectory name: --enable-subdir=$enable_subdir" exit 1 else - HACKDIR='$(bindir)/'$enable_subdir + # there must be a better way than this... + if test -z "`echo $enable_subdir | sed 's@^/.*@@'`" ; then + # absolute path + HACKDIR=$enable_subdir + else + # relative path + HACKDIR='${bindir}/'$enable_subdir + fi fi @@ -210,7 +219,9 @@ 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 - AC_PATH_X_APP_DEFAULTS_DIRECT + 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 @@ -274,11 +285,26 @@ AC_DEFUN(AC_CHECK_X_LIB, [ LDFLAGS="$LDFLAGS -L$libdir" fi CPPFLAGS="$CPPFLAGS $X_CFLAGS" - LDFLAGS="$LDFLAGS -L$x_libraries" + if test \! -z "$x_libraries" ; then + LDFLAGS="$LDFLAGS -L$x_libraries" + fi AC_CHECK_LIB([$1], [$2], [$3], [$4], [$5]) CPPFLAGS="$ac_save_CPPFLAGS" LDFLAGS="$ac_save_LDFLAGS"]) +# Like AC_TRY_RUN, but it uses the already-computed -I directories. +# (But not the -L directories!) +# +AC_DEFUN(AC_TRY_X_RUN, [ + ac_save_CPPFLAGS="$CPPFLAGS" + if test \! -z "$includedir" ; then + CPPFLAGS="$CPPFLAGS -I$includedir" + fi + CPPFLAGS="$CPPFLAGS $X_CFLAGS" + AC_TRY_RUN([$1], [$2], [$3], [$4]) + CPPFLAGS="$ac_save_CPPFLAGS"]) + + @@ -316,15 +342,22 @@ case "$host" in if test -d /usr/contrib/X11R6/include ; then X_CFLAGS="-I/usr/contrib/X11R6/include $X_CFLAGS" X_LIBS="-L/usr/contrib/X11R6/lib $X_LIBS" + elif test -d /usr/X11R6/include ; then + X_CFLAGS="-I/usr/X11R6/include $X_CFLAGS" + X_LIBS="-L/usr/X11R6/lib $X_LIBS" elif test -d /usr/contrib/X11R5/include ; then X_CFLAGS="-I/usr/contrib/X11R5/include $X_CFLAGS" X_LIBS="-L/usr/contrib/X11R5/lib $X_LIBS" + elif test -d /usr/X11R5/include ; then + X_CFLAGS="-I/usr/X11R5/include $X_CFLAGS" + X_LIBS="-L/usr/X11R5/lib $X_LIBS" fi ;; *-solaris*) # Same to you, pinheads. (Is this really the standard location now? # What happened to the joke that this kind of thing went in /opt?) + # cthomp says "answer: CDE (Common Disorganized Environment)" if test -f /usr/dt/include/Xm/Xm.h ; then X_CFLAGS="$X_CFLAGS -I/usr/dt/include" X_LIBS="$X_LIBS -L/usr/dt/lib -R:/usr/dt/lib" @@ -396,7 +429,7 @@ fi have_sgi=no with_sgi_req=unspecified AC_ARG_WITH(sgi-ext,[ -Server options: +X Server Extension options: --with-sgi-ext Include support for the SGI SCREEN_SAVER server extension, if possible (this is the default). @@ -463,7 +496,7 @@ if test $have_sgi != yes; then fi -# Check for the XIDLE server extension header, +# Check for the XIDLE server extension header. # have_xidle=no with_xidle_req=unspecified @@ -482,15 +515,134 @@ elif test $with_xidle != no; then fi +# Check for the XSHM server extension header. +# +have_xshm=no +with_xshm_req=unspecified +AC_ARG_WITH(xshm-ext, +[ --with-xshm-ext Include support for the XSHM (Shared Memory) server + extension, if possible (this is the default). + --without-xshm-ext Do not compile in support for this extension.], + [with_xshm="$withval"; with_xshm_req="$withval"],[with_xshm=yes]) +if test $with_xshm = yes; then + + # first check for Xshm.h. + AC_CHECK_X_HEADER(X11/extensions/XShm.h, [have_xshm=yes]) + + # if that succeeded, then check for sys/ipc.h. + if test $have_xshm = yes; then + have_xshm=no + AC_CHECK_X_HEADER(sys/ipc.h, [have_xshm=yes]) + fi + + # if that succeeded, then check for sys/shm.h. + if test $have_xshm = yes; then + have_xshm=no + AC_CHECK_X_HEADER(sys/shm.h, [have_xshm=yes]) + fi + + # AIX is pathological, as usual: apparently it's normal for the Xshm headers + # to exist, but the library code to not exist. And even better, the library + # code is in its own library: libXextSam.a. So, if we're on AIX, and that + # lib doesn't exist, give up. + # + case "$host" in + *-aix*) + have_xshm=no + AC_CHECK_X_LIB(XextSam, XShmQueryExtension, + [have_xshm=yes; SAVER_LIBS="$SAVER_LIBS -lXextSam"], + [], -lX11 -lXext -lm) + ;; + esac + + # if that succeeded, then we've really got it. + if test $have_xshm = yes; then + AC_DEFINE(HAVE_XSHM_EXTENSION) + fi + +elif test $with_xshm != no; then + echo "error: must be yes or no: --with-xshm-ext=$with_xshm" + exit 1 +fi + + +# Check for the SGI-VIDEO-CONTROL server extension header. +# +have_sgivc=no +with_sgivc_req=unspecified +AC_ARG_WITH(sgivc-ext, +[ --with-sgivc-ext Include support for the SGI-VIDEO-CONTROL server + extension, if possible (this is the default). + --without-sgivc-ext Do not compile in support for this extension.], + [with_sgivc="$withval"; with_sgivc_req="$withval"],[with_sgivc=yes]) +if test $with_sgivc = yes; then + + # first check for XSGIvc.h + AC_CHECK_X_HEADER(X11/extensions/XSGIvc.h, [have_sgivc=yes]) + + # if that succeeded, then check for the -lXsgivc + if test $have_sgivc = yes; then + have_sgivc=no + AC_CHECK_X_LIB(Xsgivc, XSGIvcQueryGammaMap, + [have_sgivc=yes; SAVER_LIBS="$SAVER_LIBS -lXsgivc"], [], + -lXext -lX11) + fi + + # if that succeeded, then we've really got it. + if test $have_sgivc = yes; then + AC_DEFINE(HAVE_SGI_VC_EXTENSION) + fi + +elif test $with_sgivc != no; then + echo "error: must be yes or no: --with-sgivc-ext=$with_sgivc" + exit 1 +fi + + +# Check for the DPMS server extension header. +# +have_dpms=no +with_dpms_req=unspecified +AC_ARG_WITH(dpms-ext, +[ --with-dpms-ext Include support for the DPMS server extension, + if possible (this is the default). + --without-dpms-ext Do not compile in support for this extension.], + [with_dpms="$withval"; with_dpms_req="$withval"],[with_dpms=yes]) +if test $with_dpms = yes; then + + # first check for dpms.h + AC_CHECK_X_HEADER(X11/extensions/dpms.h, [have_dpms=yes]) + + # if that succeeded, then check for the -lXdpms + if test $have_dpms = yes; then + have_dpms=no + AC_CHECK_X_LIB(Xdpms, DPMSInfo, + [have_dpms=yes; SAVER_LIBS="$SAVER_LIBS -lXdpms"], [], + -lXext -lX11) + fi + + # if that succeeded, then we've really got it. + if test $have_dpms = yes; then + AC_DEFINE(HAVE_DPMS_EXTENSION) + fi + +elif test $with_dpms != no; then + echo "error: must be yes or no: --with-dpms-ext=$with_dpms" + exit 1 +fi + + + # Check for Motif and Athena --with and --without arguments. # have_motif=no have_athena=no +have_athena3d=no with_motif_req=unspecified with_athena_req=unspecified AC_ARG_WITH(motif,[ -Toolkit options: +X Client Toolkit options: --with-motif Use the Motif toolkit for the user interface, if possible (this is the default). @@ -536,10 +688,18 @@ check_motif() { } check_athena() { - AC_CHECK_X_HEADER(X11/Xaw/Dialog.h, - [have_athena=yes - AC_DEFINE(HAVE_ATHENA) - SAVER_LIBS="-lXaw $SAVER_LIBS"]) + have_athena=no + have_athena3d=no + AC_CHECK_X_HEADER(X11/Xaw/Dialog.h, [have_athena=yes]) + AC_CHECK_X_LIB(Xaw3d, Xaw3dComputeTopShadowRGB, + [have_athena=yes; have_athena3d=yes], [], + -lXt -lXmu -lXext -lX11) + + if test $have_athena3d = yes; then + SAVER_LIBS="-lXaw3d $SAVER_LIBS" + elif test $have_athena = yes; then + SAVER_LIBS="-lXaw $SAVER_LIBS" + fi } @@ -548,6 +708,7 @@ check_athena() { # If they asked for only athena, check athena then motif. # If they asked for neither, check motif then athena. +proselytize_motif=yes if test $with_motif = yes; then # asked for both, or for motif only check_motif @@ -563,6 +724,7 @@ elif test $with_athena = yes; then check_athena if test $have_athena = yes; then with_motif=no + proselytize_motif=no else check_motif fi @@ -578,6 +740,9 @@ else fi +if test $have_motif = yes; then + proselytize_motif=no +fi # If we have Athena, check whether it's a version that includes # XawViewportSetCoordinates in Viewport.h (R3 (or R4?) don't.) @@ -596,6 +761,7 @@ fi # If we have Motif, check whether it's really LessTif. # +have_lesstif=no if test $have_motif = yes ; then AC_CACHE_CHECK([whether Motif is really LessTif], ac_cv_have_lesstif, @@ -606,13 +772,44 @@ if test $have_motif = yes ; then have_lesstif=$ac_cv_have_lesstif fi +# don't cache this +unset ac_cv_good_lesstif + +good_lesstif=no +if test $have_lesstif = yes ; then + # It must be at least "GNU Lesstif 0.82". + # #### If you change this, also sync the warning message lower down. + AC_CACHE_CHECK([whether LessTif is of a recent enough vintage], + ac_cv_good_lesstif, + [AC_TRY_X_RUN([#include + int main() { exit(LesstifVersion < 82); }], + [ac_cv_good_lesstif=yes], + [ac_cv_good_lesstif=no], + # cross compiling? Make an ass out of umption. + [ac_cv_good_lesstif=yes])]) + good_lesstif=$ac_cv_good_lesstif +fi + + +# Some versions of Motif (2.1.0, at least) require -lXp, the "X Printing +# Extension". Why this extension isn't in -lXext with all the others, +# I have no idea. +# +have_xp_ext=no +if test $have_motif = yes ; then + have_xp_ext=no + AC_CHECK_X_LIB(Xp, XpQueryExtension, + [have_xp_ext=yes; SAVER_LIBS="$SAVER_LIBS -lXp"], + [], -lX11 -lXext -lm) +fi + # check for XPM header. # have_xpm=no with_xpm_req=unspecified AC_ARG_WITH(xpm,[ -Demo options: +Graphics Demo options: --with-xpm Include support for XPM files in some demos, if possible (this is the default). @@ -685,6 +882,33 @@ elif test $with_readdisplay != no; then fi +# check for SGI's Iris Video Library header. +# +have_sgivideo=no +with_sgivideo_req=unspecified +AC_ARG_WITH(sgivideo, +[ --with-sgivideo Include support for SGI's Iris Video Library + if possible (this is the default). + --without-sgivideo Do not compile in support for this library.], + [with_sgivideo="$withval"; with_sgivideo_req="$withval"], + [with_sgivideo=yes]) +if test $with_sgivideo = yes; then + AC_CHECK_X_HEADER(dmedia/vl.h, have_sgivideo=yes) + if test $have_sgivideo = yes; then + have_sgivideo=no + AC_CHECK_LIB(vl, vlOpenVideo, have_sgivideo=yes) + if test $have_sgivideo = yes; then + SGI_VIDEO_OBJS="$(UTILS_BIN)/sgivideo.o" + SGI_VIDEO_LIBS="-lvl" + AC_DEFINE(HAVE_SGI_VIDEO) + fi + fi +elif test $with_sgivideo != no; then + echo "error: must be yes or no: --with-sgivideo=$with_sgivideo" + exit 1 +fi + + # Try to find a program to generate random text. # @@ -698,7 +922,7 @@ fi # If that doesn't work, look in /usr/games, and if it's there, use # the full pathname. # -with_zippy="" +with_zippy_req="" AC_ARG_WITH(zippy, [ --with-zippy=PROGRAM Some demos are able to run an external program and display its text; this names the program to use by @@ -706,19 +930,42 @@ AC_ARG_WITH(zippy, resources.) If you don't specify this, the default is to use \"yow\" from the Emacs distribution (if you have it) or else to use \"fortune\".], - [with_zippy="$withval"]) + [ with_zippy_req="$withval"; with_zippy="$withval" ], + [ with_zippy_req="$withval"; with_zippy="$withval" ]) if test "$with_zippy" = no || test "$with_zippy" = yes ; then - $with_zippy="" + with_zippy="" + with_zippy_req="" fi -if test -n "$with_zippy" ; then +if test -n "$with_zippy_req" ; then + ac_cv_zippy_program="" + case "$with_zippy_req" in + /*) + AC_MSG_CHECKING([for $with_zippy_req]) + if test -x "$with_zippy_req" ; then + AC_MSG_RESULT(yes) + else + AC_MSG_RESULT(no) + with_zippy="" + fi + ;; + *) + # don't cache + unset ac_cv_path_zip2 + AC_PATH_PROG(zip2, $with_zippy_req, []) + if test "$zip2" = ""; then + with_zippy="" + fi + ;; + esac ac_cv_zippy_program="$with_zippy" elif test -n "$ac_cv_zippy_program"; then AC_MSG_RESULT([checking for zippy... (cached) $ac_cv_zippy_program]) +fi -else +if test ! -n "$ac_cv_zippy_program"; then AC_CHECK_PROGS(emacs_exe, emacs) AC_CHECK_PROGS(xemacs_exe, xemacs) @@ -817,7 +1064,7 @@ with_shadow_req=unspecified need_setuid=no AC_ARG_ENABLE(locking,[ -Locking options: +Screen Locking options: --enable-locking Compile in support for locking the display (this is the default.) @@ -975,6 +1222,24 @@ if test $enable_locking = yes; then fi fi + # On FreeBSD, getpwnam() and friends work just like on non-shadow-password + # systems -- except you only get stuff in the pw_passwd field if the running + # program is setuid. So, guess that we've got this lossage to contend with + # if /etc/master.passwd exists, and default to a setuid installation. + # + if test $passwd_cruft_done = no ; then + AC_CACHE_CHECK([for FreeBSD-style shadow passwords], ac_cv_master_passwd, + [if test -f /etc/master.passwd ; then + ac_cv_master_passwd=yes + else + ac_cv_master_passwd=no + fi]) + if test $ac_cv_master_passwd = yes; then + need_setuid=yes + passwd_cruft_done=yes + fi + fi + # On some systems (UnixWare 2.1), crypt() is in -lcrypt instead of -lc. have_crypt=no AC_CHECK_LIB(c, crypt, [have_crypt=yes]) @@ -990,7 +1255,7 @@ if test $enable_locking = yes; then # if test $need_setuid = no ; then case "$host" in - *-hpux* | *-aix* | *-netbsd* ) + *-hpux* | *-aix* | *-netbsd* | *-freebsd* | *-openbsd* ) need_setuid=yes ;; esac @@ -1020,6 +1285,8 @@ DEPEND_FLAGS= DEPEND_DEFINES= +# Autoconf doesn't seem to have an INSTALL_DIRS, so let's define our own... +INSTALL_DIRS='$(INSTALL) -d' # Done testing things -- now substitute in some stuff for the Makefiles. # @@ -1078,7 +1345,10 @@ AC_SUBST(XPM_LIBS) AC_SUBST(GL_LIBS) AC_SUBST(PASSWD_LIBS) AC_SUBST(INSTALL_SETUID) +AC_SUBST(INSTALL_DIRS) AC_SUBST(NEED_SETUID) +AC_SUBST(SGI_VIDEO_OBJS) +AC_SUBST(SGI_VIDEO_LIBS) AC_SUBST(DIALOG_SRCS) AC_SUBST(DIALOG_OBJS) @@ -1102,16 +1372,31 @@ AC_SUBST(DEPEND_DEFINES) # warning=no warnsep=' #################################################################' -warn() { +warnpre() { if test $warning = no ; then echo '' ; echo "$warnsep" ; echo '' warning=yes fi - echo " Warning:" $* +} + +warn() { + warnpre + if test $warning = long ; then echo '' ; fi + warning=yes + echo " Warning: $@" +} + +warnL() { + was=$warning + warnpre + warning=yes + if test $was != no ; then echo '' ; fi + echo " Warning: $@" } warn2() { - echo " " $* + echo " $@" + warning=long } if test $with_sgi_req = yes -a $have_sgi = no ; then @@ -1126,24 +1411,49 @@ if test $with_xidle_req = yes -a $have_xidle = no ; then warn 'The XIdle extension was requested, but was not found.' fi +if test $with_xshm_req = yes -a $have_xshm = no ; then + warn 'The XSHM extension was requested, but was not found.' +fi + +if test $with_sgivc_req = yes -a $have_sgivc = no ; then + warn 'The SGI-VIDEO-CONTROL extension was requested, but was not found.' +fi + +if test $with_dpms_req = yes -a $have_dpms = no ; then + warn 'The DPMS extension was requested, but was not found.' +fi + if test $have_motif = no -a $have_athena = no ; then - warn "Neither Motif nor Athena widgets seem to be available;" + warnL "Neither Motif nor Athena widgets seem to be available;" warn2 "one or the other is required." + proselytize_motif=no elif test $with_motif_req = yes -a $have_motif = no ; then - warn "Use of Motif was requested, but it wasn't found;" + warnL "Use of Motif was requested, but it wasn't found;" warn2 "Athena will be used instead." elif test $with_athena_req = yes -a $have_athena = no ; then - warn "Use of Athena was requested, but it wasn't found;" + warnL "Use of Athena was requested, but it wasn't found;" warn2 "Motif will be used instead." fi if test $have_motif = yes -a $have_lesstif = yes ; then - warn "Motif is being used, but it appears to actually be LessTif." - warn2 "XScreenSaver has been reported to have problems with some" - warn2 "versions of LessTif (notably 0.79). You might want to use" - warn2 "Athena instead." + if test $good_lesstif != yes ; then + warnL "Motif is being used, but it appears to actually be" + warn2 "LessTif, and the version number is less than 0.82!" + warn2 "Such old versions of LessTif are too buggy to use" + warn2 "with XScreenSaver; it is strongly recommended that" + warn2 "you upgrade! See ." + fi +fi + +if test $proselytize_motif = yes ; then + warnL "Athena widgets are being used instead of Motif." + warn2 "XScreenSaver looks much better with Motif, and has" + warn2 "a few extra features as well. Wouldn't you rather" + warn2 "be using Motif? It is shipped by every commercial" + warn2 "Unix vendor; and there is a free implementation" + warn2 "available as well: see ." fi if test $with_xpm_req = yes -a $have_xpm = no ; then @@ -1158,6 +1468,10 @@ if test $with_readdisplay_req = yes -a $have_readdisplay = no ; then warn 'Use of XReadDisplay was requested, but it was not found.' fi +if test $with_sgivideo_req = yes -a $have_sgivideo = no ; then + warn 'Use of the Iris Video Library was requested, but it was not found.' +fi + if test $with_kerberos_req = yes -a $have_kerberos = no ; then warn 'Use of Kerberos was requested, but it was not found.' fi @@ -1166,7 +1480,14 @@ if test $with_shadow_req = yes -a $have_shadow = no ; then warn 'Use of shadow passwords was requested, but they were not found.' fi -if test $warning = yes; then +if test -n "$with_zippy_req"; then + if test "$with_zippy_req" != "$ac_cv_zippy_program" ; then + warnL "$with_zippy_req was requested as the Zippy program," + warn2 "but was not found. The default will be used instead." + fi +fi + +if test $warning != no; then echo '' ; echo "$warnsep" ; echo '' fi @@ -1177,3 +1498,37 @@ AC_OUTPUT(Makefile hacks/Makefile hacks/glx/Makefile driver/XScreenSaver.ad) + +# You are in a twisty maze of namespaces and syntaxes, all alike. +# Fuck the skull of Unix. +# +eval bindir=${bindir} +eval bindir=${bindir} +eval bindir=${bindir} +eval bindir=${bindir} +eval bindir=${bindir} +eval bindir=${bindir} +eval HACKDIR=${HACKDIR} +eval HACKDIR=${HACKDIR} +eval HACKDIR=${HACKDIR} +eval HACKDIR=${HACKDIR} +eval HACKDIR=${HACKDIR} +eval HACKDIR=${HACKDIR} + +echo "" +echo "$warnsep" +echo "" +echo ' When you run "make install", the "xscreensaver" and' +echo ' "xscreensaver-command" executables will be installed in' +echo " ${bindir}." +echo "" +echo " The various graphics demos (60+ different executables) will" +echo " be installed in ${HACKDIR}." +echo "" +echo " If you would prefer the demos to be installed elsewhere" +echo " (for example, in a dedicated directory) you should re-run" +echo " configure with the --enable-subdir=DIR option. For more" +echo " information, run $0 --help." +echo "" +echo "$warnsep" +echo ""