http://apple.doit.wisc.edu/mirrors/amug/linux/linuxppc/sources/tarballs/xscreensaver...
[xscreensaver] / configure.in
index 0b6cdaf129eb1c464e7e3b60da8173aad4dc16e8..3de83e0970d25cb6dfa1d899d1fb6a3f51477192 100644 (file)
@@ -159,7 +159,7 @@ Installation options:
   --enable-subdir=DIR     Put the demo programs in a subdirectory of \`bindir',
                           instead of putting them in bindir itself.  You can
                           specify the name of the subdirectory.  For example,
-                          --exec-prefix=/usr/local/bin --enable-subdir=demos
+                          \`--exec-prefix=/usr/local --enable-subdir=demos'
                           would put xscreensaver in /usr/local/bin/, and would
                           put the demos in /usr/local/bin/demos/.  (If DIR
                           begins with /, then bindir will not be prepended.)
@@ -189,6 +189,11 @@ HACKDIR=`echo "${HACKDIR}" | sed 's@/$@@;s@//*@/@g'`
 
 AC_PATH_XTRA
 
+if test "$have_x" != yes; then
+  AC_MSG_ERROR(Couldn't find X11 headers/libs.  Try \`$0 --help'.)
+fi
+
+
 # Try and find the app-defaults directory.
 # It sucks that autoconf doesn't do this already...
 #
@@ -772,6 +777,31 @@ elif test "$with_xshm" != no; then
 fi
 
 
+# Check for the DOUBLE-BUFFER server extension header.
+#
+have_xdbe=no
+with_xdbe_req=unspecified
+AC_ARG_WITH(xdbe-ext,
+[  --with-xdbe-ext         Include support for the DOUBLE-BUFFER server
+                          extension, if possible (this is the default).
+  --without-xdbe-ext      Do not compile in support for this extension.],
+  [with_xdbe="$withval"; with_xdbe_req="$withval"],[with_xdbe=yes])
+
+HANDLE_X_PATH_ARG(with_xdbe, --with-xdbe-ext, DOUBLE-BUFFER)
+
+if test "$with_xdbe" = yes; then
+
+  AC_CHECK_X_HEADER(X11/extensions/Xdbe.h, [have_xdbe=yes])
+  if test "$have_xdbe" = yes; then
+    AC_DEFINE(HAVE_DOUBLE_BUFFER_EXTENSION)    
+  fi
+
+elif test "$with_xdbe" != no; then
+  echo "error: must be yes or no: --with-xdbe-ext=$with_xshm"
+  exit 1
+fi
+
+
 # Check for the SGI-VIDEO-CONTROL server extension header.
 #
 have_sgivc=no
@@ -844,6 +874,77 @@ elif test "$with_dpms" != no; then
 fi
 
 
+# Check for the XF86VMODE server extension header.
+#
+have_xf86vmode=no
+with_xf86vmode_req=unspecified
+AC_ARG_WITH(xf86vmode-ext,
+[  --with-xf86vmode-ext    Include support for XFree86 virtual screens, if
+                          possible (this is the default).
+  --without-xf86vmode-ext Do not compile in support for this extension.],
+  [with_xf86vmode="$withval"; with_xf86vmode_req="$withval"],
+  [with_xf86vmode=yes])
+
+HANDLE_X_PATH_ARG(with_xf86vmode, --with-xf86vmode-ext, xf86vmode)
+
+if test "$with_xf86vmode" = yes; then
+
+  # first check for xf86vmode.h
+  AC_CHECK_X_HEADER(X11/extensions/xf86vmode.h, [have_xf86vmode=yes])
+
+  # if that succeeded, then check for the -lXxf86vm
+  if test "$have_xf86vmode" = yes; then
+    have_xf86vmode=no
+    AC_CHECK_X_LIB(Xxf86vm, XF86VidModeGetViewPort,
+                 [have_xf86vmode=yes; SAVER_LIBS="$SAVER_LIBS -lXxf86vm"], [],
+                 -lXext -lX11)
+  fi
+
+  # if that succeeded, then we've really got it.
+  if test "$have_xf86vmode" = yes; then
+    AC_DEFINE(HAVE_XF86VMODE)
+  fi
+
+elif test "$with_xf86vmode" != no; then
+  echo "error: must be yes or no: --with-xf86vmode-ext=$with_xf86vmode"
+  exit 1
+fi
+
+
+# Check for /proc/interrupts
+#
+have_proc_interrupts=no
+with_proc_interrupts_req=unspecified
+AC_ARG_WITH(proc-interrupts,
+[  --with-proc-interrupts  Include support for consulting the /proc/interrupts
+                          file to notice keyboard activity, if possible.
+  --without-proc-interrupts   Do not compile in support for this method.],
+  [with_proc_interrupts="$withval"; with_proc_interrupts_req="$withval"],
+  [with_proc_interrupts=yes])
+
+if test "$with_proc_interrupts" = yes; then
+
+   AC_MSG_CHECKING(whether /proc/interrupts contains keyboard data)
+   AC_CACHE_VAL(ac_cv_have_proc_interrupts,
+    [ac_cv_have_proc_interrupts=no
+     if grep keyboard /proc/interrupts >/dev/null 2>&1 ; then
+       ac_cv_have_proc_interrupts=yes
+     fi
+    ])
+   have_proc_interrupts=$ac_cv_have_proc_interrupts
+
+  AC_MSG_RESULT($have_proc_interrupts)
+
+  if test "$have_proc_interrupts" = yes; then
+    AC_DEFINE(HAVE_PROC_INTERRUPTS)
+  fi
+
+elif test "$with_proc_interrupts" != no; then
+  echo "error: must be yes or no: --with-proc-interrupts=$with_proc_interrupts"
+  exit 1
+fi
+
+
 
 # Check for Motif and Athena --with and --without arguments.
 #
@@ -1026,6 +1127,57 @@ if test "$have_lesstif" = yes ; then
 fi
 
 
+if test "$have_motif" = yes ; then
+  mtv=unknown
+  echo unknown > conftest-mt
+  AC_CACHE_CHECK([Motif version number],
+                ac_cv_motif_version_string,
+      [AC_TRY_X_RUN([#include <stdio.h>
+                    #include <Xm/Xm.h>
+                    int main() {
+                      FILE *f = fopen("conftest-mt", "w");
+                      if (!f) exit(1);
+                      fprintf(f, "%d %d.%d\n", XmVersion,
+                         XmVERSION, XmREVISION);
+                      fclose(f);
+                      exit(0);
+                    }],
+                   [mtv=`cat conftest-mt`
+                    ac_cv_motif_version=`echo $mtv | sed 's/ .*//'`
+                    ac_cv_motif_version_string=`echo $mtv | sed 's/.* //'`],
+                   [ac_cv_motif_version=unknown
+                    ac_cv_motif_version_string=unknown],
+                   [ac_cv_motif_version=unknown
+                    ac_cv_motif_version_string=unknown])])
+  rm -f conftest-mt
+  motif_version=$ac_cv_motif_version
+  motif_version_string=$ac_cv_motif_version_string
+
+fi
+
+
+# If this is Motif 2.x, and we have XPM, then link against XPM as well.
+# The deal is, Motif 2.x requires XPM -- but it's a compilation option of
+# the library whether to build the XPM code into libXm, or whether to rely
+# on an external libXm.  So the only way to tell whether XPM is a link-time
+# requirement is to examine libXm.a, which is very difficult to do in an
+# autoconf script.  So... if it's Motif 2.x, we always link against XPM if
+# the XPM lib exists (and this will be a no-op if libXm happens to already
+# have the XPM code in it.)
+#
+motif_requires_xpm=no
+if test "$have_motif" = yes ; then
+   AC_MSG_CHECKING(whether Motif requires XPM)
+   if test "$motif_version" -ge 2000; then
+     motif_requires_xpm=yes
+     AC_MSG_RESULT(maybe)
+   else
+     AC_MSG_RESULT(no)
+   fi
+fi
+
+
+
 # Some versions of Motif (2.1.0, at least) require -lXp, the "X Printing
 # Extension".   Why this extension isn't in -lXext with all the others,
 # I have no idea.
@@ -1076,6 +1228,15 @@ elif test "$with_xpm" != no; then
   exit 1
 fi
 
+# See comment near $motif_requires_xpm, above.
+# Need to do this here, after both Motif and XPM have been checked for.
+#
+if test "$have_motif" = yes -a "$have_xpm" = yes ; then
+  if test "$motif_requires_xpm" = yes ; then
+    TOOLKIT_LIBS="$TOOLKIT_LIBS $XPM_LIBS"
+  fi
+fi
+
 
 # check for the GL header
 #
@@ -1185,7 +1346,7 @@ EOF
     # If it's MesaGL, check to see if it requires -lpthread.
     #
     have_pthread=no
-    mesa_requires_pthread=false
+    mesa_requires_pthread=no
     if test "$ac_have_mesa_gl" = yes; then
 
       AC_CHECK_LIB(pthread, pthread_create, [have_pthread=yes], [],)
@@ -1205,6 +1366,27 @@ EOF
     AC_CHECK_X_LIB($gl_lib_1, glBindTexture, [AC_DEFINE(HAVE_GLBINDTEXTURE)],
                   [], $GL_LIBS -lX11 -lXext -lm)
 
+
+    # Check whether the `xscreensaver' executable should link against GL.
+    # See comments in utils/visual-gl.c for why this is sometimes necessary.
+    #
+    AC_MSG_CHECKING(whether drastic GL measures must be taken)
+    case "$host" in
+      *-sgi*)
+        AC_MSG_RESULT([yes -- hello, SGI.])
+        AC_DEFINE(DAEMON_USE_GL)
+        SAVER_GL_SRCS='$(UTILS_SRC)/visual-gl.c'
+        SAVER_GL_OBJS='$(UTILS_BIN)/visual-gl.o'
+        SAVER_GL_LIBS="$GL_LIBS"
+      ;;
+      *)
+        AC_MSG_RESULT([no -- non-SGI.])
+        SAVER_GL_SRCS=''
+        SAVER_GL_OBJS=''
+        SAVER_GL_LIBS=''
+      ;;
+    esac
+
   fi
 
 elif test "$with_gl" != no; then
@@ -1377,12 +1559,25 @@ if test ! -n "$ac_cv_zippy_program"; then
          dir_up=`echo "$dir" | sed 's@/[^/]*$@@'`
          changequote([,])
 
-          yow="yow -f $dir_up/etc/yow.lines"
-         if $dir/$yow >&- 2>&- ; then
-           ac_cv_zippy_program="$dir/$yow"
+         yowlines="$dir_up/etc/yow.lines"
+         if $dir/yow -f $yowlines >&- 2>&- ; then
+           ac_cv_zippy_program="$dir/yow -f $yowlines"
            AC_MSG_RESULT($ac_cv_zippy_program)
          else
-           AC_MSG_RESULT(no)
+            #
+            # In newer XEmacs releases, yow.lines is in a different place,
+            # and the easiest way to get it is by calling the new function
+            # `locate-data-file'.
+            #
+            yowlines=`$xemacs_exe $eargs \
+              '(princ (concat (locate-data-file "yow.lines") "\n"))' \
+              2>/dev/null | tail -1`
+            if $dir/yow -f $yowlines >&- 2>&- ; then
+              ac_cv_zippy_program="$dir/yow -f $yowlines"
+              AC_MSG_RESULT($ac_cv_zippy_program)
+            else
+              AC_MSG_RESULT(no)
+            fi
          fi
         fi
       fi
@@ -1462,7 +1657,7 @@ if test "$enable_vt_locking" = yes; then
   ac_vt_lockswitch=$ac_cv_vt_lockswitch
   AC_MSG_RESULT($ac_vt_lockswitch)
 
-elif test "$enable_locking" = no; then
+elif test "$enable_vt_locking" = no; then
   true
 else
   echo "error: must be yes or no: --enable-vt-locking=$enable_vt_locking"
@@ -1517,9 +1712,7 @@ if test "$enable_locking" = yes; then
 [  --with-pam              Include support for PAM (Pluggable Authentication
                           Modules) if possible (this is the default.)
   --without-pam           Do not compile in support for PAM.],
-  [with_pam="$withval"; with_pam_req="$withval"],[with_pam=no])
-#### Leave PAM off by default for now, since it's buggy on Solaris
-#### (and probably Linux, but it's so hard to tell...)
+  [with_pam="$withval"; with_pam_req="$withval"],[with_pam=yes])
 
   HANDLE_X_PATH_ARG(with_pam, --with-pam, PAM)
 
@@ -1532,6 +1725,33 @@ if test "$enable_locking" = yes; then
          have_pam=yes
          AC_DEFINE(HAVE_PAM)
          PASSWD_LIBS="${PASSWD_LIBS} -lpam -ldl"
+
+
+          AC_MSG_CHECKING(how to call pam_strerror)
+          AC_CACHE_VAL(ac_cv_pam_strerror_args,
+           [AC_TRY_COMPILE([#include <stdio.h>
+                            #include <stdlib.h>
+                            #include <security/pam_appl.h>],
+                           [pam_handle_t *pamh = 0;
+                            char *s = pam_strerror(pamh, PAM_SUCCESS);],
+                           [ac_pam_strerror_args=2],
+                           [AC_TRY_COMPILE([#include <stdio.h>
+                                            #include <stdlib.h>
+                                            #include <security/pam_appl.h>],
+                                           [char *s =
+                                             pam_strerror(PAM_SUCCESS);],
+                                           [ac_pam_strerror_args=1],
+                                           [ac_pam_strerror_args=0])])
+            ac_cv_pam_strerror_args=$ac_pam_strerror_args])
+          ac_pam_strerror_args=$ac_cv_pam_strerror_args
+          if test "$ac_pam_strerror_args" = 1 ; then
+            AC_MSG_RESULT(one argument)
+          elif test "$ac_pam_strerror_args" = 2 ; then
+            AC_DEFINE(PAM_STRERROR_TWO_ARGS)
+            AC_MSG_RESULT(two arguments)
+          else
+            AC_MSG_RESULT(unknown)
+          fi
     fi
   elif test "$with_pam" != no; then
        echo "error: must be yes or no: --with-pam=$with_pam"
@@ -1712,6 +1932,94 @@ if test "$enable_locking" = yes; then
 fi
 
 
+# for the "sonar" hack -- check how to ping.
+#
+AC_MSG_CHECKING(for struct icmp)
+AC_CACHE_VAL(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;
+                  ip.ip_hl = 0;],
+                 [ac_cv_have_icmp=yes],
+                 [ac_cv_have_icmp=no])])
+ac_have_icmp=$ac_cv_have_icmp
+AC_MSG_RESULT($ac_cv_have_icmp)
+
+AC_MSG_CHECKING(for struct icmphdr)
+AC_CACHE_VAL(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.cksum = 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])])
+ac_have_icmphdr=$ac_cv_have_icmphdr
+AC_MSG_RESULT($ac_cv_have_icmphdr)
+
+if test "$ac_have_icmp" = yes ; then
+  AC_DEFINE(HAVE_ICMP)
+fi
+if test "$ac_have_icmphdr" = yes ; then
+  AC_DEFINE(HAVE_ICMPHDR)
+fi
+
+
+
+########################## end of tests.
+
+
 if test \! -z "$includedir" ; then 
   INCLUDES="-I$includedir"
 fi
@@ -1774,9 +2082,10 @@ fi
 tab='  '
 if test "$have_gl" = yes; then
   GL_EXES='$(GL_EXES)'
-  GL_KLUDGE=${tab}
+  GL_MEN='$(GL_MEN)'
+  GL_KLUDGE="${tab}  "
 else
-  GL_KLUDGE='  -'${tab}
+  GL_KLUDGE="  -${tab}  "
 fi
 
 AC_SUBST(INCLUDES)
@@ -1800,9 +2109,13 @@ AC_SUBST(PASSWD_SRCS)
 AC_SUBST(PASSWD_OBJS)
 AC_SUBST(XMU_SRCS)
 AC_SUBST(XMU_OBJS)
+AC_SUBST(SAVER_GL_SRCS)
+AC_SUBST(SAVER_GL_OBJS)
+AC_SUBST(SAVER_GL_LIBS)
 AC_SUBST(LOCK_SRCS)
 AC_SUBST(LOCK_OBJS)
 AC_SUBST(GL_EXES)
+AC_SUBST(GL_MEN)
 AC_SUBST(GL_KLUDGE)
 AC_SUBST(HACKDIR)
 AC_SUBST(APPDEFAULTS)
@@ -1876,6 +2189,10 @@ if test "$with_xshm_req" = yes -a "$have_xshm" = no ; then
   warn 'The XSHM extension was requested, but was not found.'
 fi
 
+if test "$with_xdbe_req" = yes -a "$have_xdbe" = no ; then
+  warn 'The DOUBLE-BUFFER 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
@@ -1884,6 +2201,10 @@ if test "$with_dpms_req" = yes -a "$have_dpms" = no ; then
   warn 'The DPMS extension was requested, but was not found.'
 fi
 
+if test "$with_xf86vmode_req" = yes -a "$have_xf86vmode" = no ; then
+  warn 'The XF86VMODE extension was requested, but was not found.'
+fi
+
 if test "$have_motif" = no -a "$have_athena" = no ; then
   warnL "Neither Motif nor Athena widgets seem to be available;"
   warn2 "the \`xscreensaver-demo' program requires one or the"
@@ -1928,7 +2249,7 @@ fi
 
 
 if test "$have_gl" = yes -a "$ac_have_mesa_gl" = yes ; then
-  preferred_mesagl=2.7
+  preferred_mesagl=3.0
 
   if test "$ac_mesagl_version" = unknown; then
     warnL "Unable to determine the MesaGL version number!"
@@ -1975,8 +2296,8 @@ if test "$have_gl" = no ; then
   warn2 're-running configure.  (Remember to delete the'
   warn2 "config.cache file first.)  If your vendor doesn't ship"
   warn2 'their own implementation of OpenGL, you can get a free'
-  warn2 'version at <http://www.ssec.wisc.edu/~brianp/Mesa.html>.'
-  warn2 'For general OpenGL info, see <http://www.opengl.org/>.'
+  warn2 'version at <http://www.mesa3d.org/>.  For general OpenGL'
+  warn2 'info, see <http://www.opengl.org/>.'
 
 fi
 
@@ -2039,7 +2360,60 @@ eval HACKDIR=${HACKDIR}
 bindir=`echo  "${bindir}"  | sed 's@/$@@;s@//*@/@g'`
 HACKDIR=`echo "${HACKDIR}" | sed 's@/$@@;s@//*@/@g'`
 
+
+# Sanity check the subdir
+for bad_choice in xscreensaver xscreensaver-demo xscreensaver-command ; do
+  if test "${HACKDIR}" = "${bindir}/${bad_choice}" ; then
+    echo ""
+    AC_MSG_ERROR([\"--enable-subdir=${bindir}/${bad_choice}\" won't work.
+                   There will be an executable installed with that name, so
+                   that can't be the name of a directory as well.  Please
+                   re-configure with a different directory name.])
+  fi
+done
+
+
+do_dir_warning=no
+
+# Now let's see if there's a previous RPM version already installed.  Blargh!
+
+# M4 sucks!!
+changequote(X,Y)
+rpmv=`(rpm -qv xscreensaver) 2>&- | \
+      sed 's/^xscreensaver-\([0-9][0-9]*[.][0-9][0-9]*\)-[0-9][0-9]*$/\1/'`
+changequote([,])
+
+if test \! -z "$rpmv" ; then
+  rpmbdir=`rpm -ql xscreensaver | sed -n 's@^\(.*\)/xscreensaver-demo$@\1@p'`
+  rpmhdir=`rpm -ql xscreensaver | sed -n 's@^\(.*\)/attraction$@\1@p'`
+
+  warning=no
+  warnL "There is already an installed RPM of xscreensaver $rpmv"
+  warn2 "on this system.  You might want to remove it (with"
+  warn2 '"rpm -ve xscreensaver") before running "make install"'
+  warn2 "from this directory."
+  echo ""
+  warn2 "Alternately, you could build this version of xscreensaver"
+  warn2 'as an RPM, and then install that.  An "xscreensaver.spec"'
+  warn2 "file is included.  See the RPM documentation for more info."
+  echo ""
+
+  if test "$rpmbdir" = "$rpmhdir" ; then
+    warn2 "The RPM version was installed in $rpmbdir."
+  else
+    warn2 "The RPM version was installed in $rpmbdir,"
+    warn2 "with demos in $rpmhdir."
+  fi
+
+  do_dir_warning=yes
+fi
+
+
 if test "${bindir}" = "${HACKDIR}" ; then
+  do_dir_warning=yes
+fi
+
+if test "$do_dir_warning" = yes; then
   echo ""
   echo "$warnsep"
   echo ""
@@ -2047,7 +2421,7 @@ if test "${bindir}" = "${HACKDIR}" ; then
   echo '      "xscreensaver-demo", and "xscreensaver-command" executables'
   echo "      will be installed in ${bindir}."
   echo ""
-  echo "      The various graphics demos (80+ different executables) will"
+  echo "      The various graphics demos (90+ different executables) will"
   echo "      also be installed in ${HACKDIR}."
   echo ""
   echo "      If you would prefer the demos to be installed elsewhere"