1 ?RCS: $Id: Guess.U 1 2006-08-24 12:32:52Z rmanfredi $
3 ?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi
5 ?RCS: You may redistribute only under the terms of the Artistic Licence,
6 ?RCS: as specified in the README file that comes with the distribution.
7 ?RCS: You may reuse parts of this distribution only within the terms of
8 ?RCS: that same Artistic Licence; a copy of which may be found at the root
9 ?RCS: of the source tree for dist 4.0.
11 ?RCS: $Log: Guess.U,v $
12 ?RCS: Revision 3.0.1.5 1995/07/25 13:37:14 ram
13 ?RCS: patch56: now knows about OS/2 platforms
15 ?RCS: Revision 3.0.1.4 1994/10/29 15:53:55 ram
16 ?RCS: patch36: added ?F: line for metalint file checking
17 ?RCS: patch36: call ./xenix explicitly instead of relying on PATH
19 ?RCS: Revision 3.0.1.3 1993/12/15 08:14:35 ram
20 ?RCS: patch15: variable d_bsd was not always set properly
22 ?RCS: Revision 3.0.1.2 1993/08/30 08:57:14 ram
23 ?RCS: patch8: fixed comment which wrongly attributed the usrinc symbol
24 ?RCS: patch8: no more ugly messages when no /usr/include/ctype.h
26 ?RCS: Revision 3.0.1.1 1993/08/27 14:37:37 ram
27 ?RCS: patch7: added support for OSF/1 machines
29 ?RCS: Revision 3.0 1993/08/18 12:04:57 ram
30 ?RCS: Baseline for dist 3.0 netwide release.
33 ?X: This unit hazards some guesses as to what the general nature of the system
34 ?X: is. The information it collects here is used primarily to establish default
35 ?X: answers to other questions.
37 ?MAKE:Guess d_eunice d_xenix d_bsd d_linux d_dos d_os2: cat test echo n c \
38 contains rm tr Loc eunicefix
39 ?MAKE: -pick add $@ %<
41 ?S: This variable conditionally defines the symbols EUNICE_SYSTEM, which
42 ?S: alerts the C program that it must deal with ideosyncracies of VMS.
45 ?S: This variable conditionally defines the symbol XENIX_SYSTEM, which alerts
46 ?S: the C program that it runs under Xenix.
49 ?S: This symbol conditionally defines the symbol DOS_SYSTEM when running on
50 ?S: DOS with DJGPP or Cygwin.
53 ?S: This symbol conditionally defines the symbol OS2_SYSTEM when running on
57 ?S: This symbol conditionally defines the symbol BSD_SYSTEM when running on a
61 ?S: This symbol conditionally defines the symbol LINUX_SYSTEM when running
62 ?S: on a Linux system.
64 ?C:EUNICE_SYSTEM (EUNICE):
65 ?C: This symbol, if defined, indicates that the program is being compiled
66 ?C: under the EUNICE package under VMS. The program will need to handle
67 ?C: things like files that don't go away the first time you unlink them,
68 ?C: due to version numbering. It will also need to compensate for lack
69 ?C: of a respectable link() command.
72 ?C: This symbol, if defined, indicates that the program is running under
73 ?C: VMS. It is currently only set in conjunction with the EUNICE symbol.
75 ?C:XENIX_SYSTEM (XENIX):
76 ?C: This symbol, if defined, indicates that the program is running under
77 ?C: Xenix (at least 3.0 ?).
80 ?C: This symbol, if defined, indicates that the program is running under
84 ?C: This symbol, if defined, indicates that the program is running under
88 ?C: This symbol, if defined, indicates that the program is running under
92 ?C: This symbol, if defined, indicates that the program is running under
95 ?H:#$d_eunice EUNICE_SYSTEM /**/
96 ?H:#$d_eunice VMS_SYSTEM /**/
97 ?H:#$d_xenix XENIX_SYSTEM /**/
98 ?H:#$d_dos DOS_SYSTEM /**/
99 ?H:#$d_os2 OS2_SYSTEM /**/
100 ?H:#$d_bsd BSD_SYSTEM /**/
101 ?H:#$d_linux LINUX_SYSTEM /**/
103 ?F:./bsd ./usg ./v7 ./osf1 ./eunice ./xenix ./venix ./dos ./os2 ./gnu ./linux
104 ?T:xxx DJGPP MACHTYPE
105 : make some quick guesses about what we are up against
124 ?X: Do not use 'usrinc', or we get a circular dependency. because
125 ?X: usrinc is defined in usrinc.U, which relies on us...
127 $cat /usr/include/signal.h /usr/include/sys/signal.h >foo 2>/dev/null
128 if test -f /osf_boot || $contains 'OSF/1' /usr/include/ctype.h >/dev/null 2>&1
130 echo "Looks kind of like an OSF/1 system, but we'll see..."
132 elif test `echo abc | $tr a-z A-Z` = Abc ; then
133 xxx=`./loc addbib blurfl $pth`
134 if $test -f $xxx; then
135 echo "Looks kind of like a USG system with BSD features, but we'll see..."
139 if $contains SIGTSTP foo >/dev/null 2>&1 ; then
140 echo "Looks kind of like an extended USG system, but we'll see..."
142 echo "Looks kind of like a USG system, but we'll see..."
146 elif $contains SIGTSTP foo >/dev/null 2>&1 ; then
147 echo "Looks kind of like a BSD system, but we'll see..."
151 $rm --version 2>/dev/null >foo;
152 $contains "Free Software Foundation" foo >/dev/null
156 echo "Looks kind of like a GNU/$xxx system, but we'll see..."
157 if $test X$xxx = XLinux; then
162 echo "Looks kind of like a Version 7 system, but we'll see..."
168 There is, however, a strange, musty smell in the air that reminds me of
169 something...hmm...yes...I've got it...there's a VMS nearby, or I'm a Blit.
173 : it so happens the Eunice I know will not run shell scripts in Unix format
177 echo "Congratulations. You aren't running Eunice."
185 I have the feeling something is not exactly right, however...don't tell me...
187 if test -n "$DJGPP"; then
188 case "X${MACHTYPE:-nonesuchmach}" in
189 cygwin) echo "hah!... you're running under Cygwin!";;
190 *) echo "got it... you're running DOS with DJGPP!";;
196 lemme think...does HAL ring a bell?...no, of course, you're only running OS/2!
203 if test -f /xenix; then
204 echo "Actually, this looks more like a XENIX system..."
209 echo "It's not Xenix..."
214 if test -f /venix; then
215 echo "Actually, this looks more like a VENIX system..."
222 echo "Nor is it Venix..."
225 chmod +x bsd usg v7 osf1 eunice xenix venix dos os2 gnu linux
226 $eunicefix bsd usg v7 osf1 eunice xenix venix dos os2 gnu linux