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959f3c4c JH |
1 | ?RCS: $Id: Head.U,v 3.0.1.9 1997/02/28 15:02:09 ram Exp $ |
2 | ?RCS: | |
3 | ?RCS: Copyright (c) 1991-1993, Raphael Manfredi | |
4 | ?RCS: | |
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 3.0. | |
10 | ?RCS: | |
11 | ?RCS: $Log: Head.U,v $ | |
12 | ?RCS: Revision 3.0.1.9 1997/02/28 15:02:09 ram | |
13 | ?RCS: patch61: make sure we unset CDPATH for shells that support this | |
14 | ?RCS: patch61: improved Korn shell detection and handling | |
15 | ?RCS: | |
16 | ?RCS: Revision 3.0.1.8 1995/07/25 13:40:02 ram | |
17 | ?RCS: patch56: added SVR4-ish /opt directories to path list (ADO) | |
18 | ?RCS: patch56: OS/2 platforms are using another path separator | |
19 | ?RCS: | |
20 | ?RCS: Revision 3.0.1.7 1995/03/21 08:46:15 ram | |
21 | ?RCS: patch52: definition of paths wrongly added spurious ':' chars | |
22 | ?RCS: | |
23 | ?RCS: Revision 3.0.1.6 1994/10/29 15:54:19 ram | |
24 | ?RCS: patch36: make sure ENV is unset before calling /bin/ksh | |
25 | ?RCS: | |
26 | ?RCS: Revision 3.0.1.5 1994/08/29 16:03:44 ram | |
27 | ?RCS: patch32: now sets PATH only using existing directories | |
28 | ?RCS: | |
29 | ?RCS: Revision 3.0.1.4 1994/06/20 06:54:28 ram | |
30 | ?RCS: patch30: now computes its invocation name into 'me' | |
31 | ?RCS: patch30: symbol me is made visible to all units read-only | |
32 | ?RCS: | |
33 | ?RCS: Revision 3.0.1.3 1993/12/15 08:15:07 ram | |
34 | ?RCS: patch15: added /sbin:/usr/sbin:/usr/libexec in PATH for BSD/386 | |
35 | ?RCS: | |
36 | ?RCS: Revision 3.0.1.2 1993/11/10 17:32:35 ram | |
37 | ?RCS: patch14: ensure PATH is reset to '.' before testing for alias | |
38 | ?RCS: | |
39 | ?RCS: Revision 3.0.1.1 1993/08/27 14:38:07 ram | |
40 | ?RCS: patch7: not all 'test' programs support the -x option | |
41 | ?RCS: | |
42 | ?RCS: Revision 3.0 1993/08/18 12:04:58 ram | |
43 | ?RCS: Baseline for dist 3.0 netwide release. | |
44 | ?RCS: | |
45 | ?X: | |
46 | ?X: This is the very first unit in the Configure script. It is mostly just | |
47 | ?X: things to keep people from getting into a tizzy right off the bat. | |
48 | ?X: | |
df0bcc5d | 49 | ?MAKE:Head: |
959f3c4c JH |
50 | ?MAKE: -pick wipe $@ %< |
51 | ?V:PATH p_ me | |
52 | ?T:argv Id p paths OS2_SHELL DJGPP | |
53 | ?T:inksh needksh avoidksh newsh changesh reason | |
b5f73a83 | 54 | ?LINT:extern ENV CDPATH SHELL MACHTYPE |
959f3c4c JH |
55 | ?LINT:change ENV CDPATH |
56 | #! /bin/sh | |
57 | # | |
58 | # If these # comments don't work, trim them. Don't worry about any other | |
59 | # shell scripts, Configure will trim # comments from them for you. | |
60 | # | |
61 | # (If you are trying to port this package to a machine without sh, | |
62 | # I would suggest you have a look at the prototypical config_h.SH file | |
63 | # and edit it to reflect your system. Some packages may include samples | |
64 | # of config.h for certain machines, so you might look for one of those.) | |
65 | # | |
66 | ?X: | |
67 | ?X: NOTE THAT A CONFIGURE SCRIPT IS IN THE PUBLIC DOMAIN (whether or not | |
68 | ?X: the software which uses it is in the public domain). | |
69 | ?X: | |
70 | # Yes, you may rip this off to use in other distribution packages. This | |
71 | # script belongs to the public domain and cannot be copyrighted. | |
72 | # | |
73 | ?X: | |
74 | ?X: WE ASK YOU NOT TO REMOVE OR ALTER THE FOLLOWING PARAGRAPH, PLEASE: | |
75 | ?X: | |
76 | # (Note: this Configure script was generated automatically. Rather than | |
77 | # working with this copy of Configure, you may wish to get metaconfig. | |
78 | # The dist-3.0 package (which contains metaconfig) was posted in | |
79 | # comp.sources.misc and is available on CPAN under authors/id/RAM so | |
80 | # you may fetch it yourself from your nearest archive site.) | |
81 | # | |
82 | ?X: | |
83 | ?X: NOTA BENE: | |
84 | ?X: If you develop you own version of metaconfig based on this work, | |
85 | ?X: you have to add some comments telling that the script was generated | |
86 | ?X: by your version, not mine: It credits your work. | |
87 | ?X: | |
88 | ||
89 | # $Id: Head.U,v 3.0.1.9 1997/02/28 15:02:09 ram Exp $ | |
90 | # | |
91 | # Generated on <DATE> [metaconfig <VERSION> PL<PATCHLEVEL>] | |
92 | # (with additional metaconfig patches by <MAINTLOC>) | |
93 | ||
7d2a10a8 | 94 | cat >c1$$ <<EOF |
959f3c4c JH |
95 | ARGGGHHHH!!!!! |
96 | ||
97 | SCO csh still thinks true is false. Write to SCO today and tell them that next | |
98 | year Configure ought to "rm /bin/csh" unless they fix their blasted shell. :-) | |
99 | ||
100 | (Actually, Configure ought to just patch csh in place. Hmm. Hmmmmm. All | |
101 | we'd have to do is go in and swap the && and || tokens, wherever they are.) | |
102 | ||
103 | [End of diatribe. We now return you to your regularly scheduled programming...] | |
104 | EOF | |
7d2a10a8 | 105 | cat >c2$$ <<EOF |
959f3c4c JH |
106 | |
107 | OOPS! You naughty creature! You didn't run Configure with sh! | |
108 | I will attempt to remedy the situation by running sh for you... | |
109 | EOF | |
110 | ||
7d2a10a8 | 111 | true || cat c1$$ c2$$ |
959f3c4c JH |
112 | true || exec sh $0 $argv:q |
113 | ||
7d2a10a8 | 114 | (exit $?0) || cat c2$$ |
959f3c4c | 115 | (exit $?0) || exec sh $0 $argv:q |
7d2a10a8 | 116 | rm -f c1$$ c2$$ |
959f3c4c JH |
117 | |
118 | : compute my invocation name | |
119 | me=$0 | |
120 | case "$0" in | |
121 | */*) | |
122 | me=`echo $0 | sed -e 's!.*/\(.*\)!\1!' 2>/dev/null` | |
123 | test "$me" || me=$0 | |
124 | ;; | |
125 | esac | |
126 | ||
127 | ?X: | |
128 | ?X: To be able to run under OS/2, we must detect that early enough to use | |
129 | ?X: the proper path separator, stored in $p_. It is : on UNIX and ; on | |
130 | ?X: DOSish systems such as OS/2. | |
131 | ?X: | |
132 | : Proper separator for the PATH environment variable | |
133 | p_=: | |
134 | : On OS/2 this directory should exist if this is not floppy only system :-] | |
135 | if test -d c:/. ; then | |
136 | if test -n "$OS2_SHELL"; then | |
137 | p_=\; | |
138 | PATH=`cmd /c "echo %PATH%" | tr '\\\\' / ` | |
139 | ?X: That's a bug in ksh5.22 | |
140 | OS2_SHELL=`cmd /c "echo %OS2_SHELL%" | tr '\\\\' / | tr '[A-Z]' '[a-z]'` | |
141 | elif test -n "$DJGPP"; then | |
b5f73a83 JH |
142 | case "X${MACHTYPE:-nonesuchmach}" in |
143 | *cygwin) ;; | |
144 | *) p_=\; ;; | |
145 | esac | |
959f3c4c JH |
146 | fi |
147 | fi | |
148 | ||
149 | ?X: | |
150 | ?X: There are two schools of thoughts here. Some people correctly argue that | |
151 | ?X: the user has a better chance than we do of setting a reasonable PATH and | |
152 | ?X: others argue that Configure is the best place there is to set up a suitable | |
153 | ?X: PATH. Well, here we try to compromize by keeping the user's PATH and | |
154 | ?X: appending some directories which are known to work on some machine or the | |
155 | ?X: other. The rationale behind this being that a novice user might not have a | |
156 | ?X: proper environment variable set, and some directories like /etc (where | |
157 | ?X: chown is located on some BSD systems) may be missing--RAM. | |
158 | ?X: | |
159 | ?X: SVR4 adds an /opt directory for optional packages. Some sites use | |
160 | ?X: various permutations on /opt as opposed to /usr or /usr/local.-- ADO | |
161 | ?X: | |
162 | ?X: We only add directories that are not already in the PATH of the | |
163 | ?X: user and the directories must exist also. | |
164 | ?X: | |
165 | : Proper PATH setting | |
166 | paths='/bin /usr/bin /usr/local/bin /usr/ucb /usr/local /usr/lbin' | |
167 | paths="$paths /opt/bin /opt/local/bin /opt/local /opt/lbin" | |
168 | paths="$paths /usr/5bin /etc /usr/gnu/bin /usr/new /usr/new/bin /usr/nbin" | |
169 | paths="$paths /opt/gnu/bin /opt/new /opt/new/bin /opt/nbin" | |
170 | paths="$paths /sys5.3/bin /sys5.3/usr/bin /bsd4.3/bin /bsd4.3/usr/ucb" | |
171 | paths="$paths /bsd4.3/usr/bin /usr/bsd /bsd43/bin /usr/ccs/bin" | |
172 | paths="$paths /etc /usr/lib /usr/ucblib /lib /usr/ccs/lib" | |
173 | paths="$paths /sbin /usr/sbin /usr/libexec" | |
174 | ||
175 | for p in $paths | |
176 | do | |
177 | case "$p_$PATH$p_" in | |
178 | *$p_$p$p_*) ;; | |
179 | *) test -d $p && PATH=$PATH$p_$p ;; | |
180 | esac | |
181 | done | |
182 | ||
183 | PATH=.$p_$PATH | |
184 | export PATH | |
185 | ||
186 | : shall we be using ksh? | |
187 | inksh='' | |
188 | needksh='' | |
189 | avoidksh='' | |
190 | newsh=/bin/ksh | |
191 | changesh='' | |
192 | ?X: Use (alias -x) and not (alias) since zsh and bash recognize the alias | |
193 | ?X: builtin but not the -x option which is typically ksh... | |
194 | ?X: We need to set up PATH before calling the "alias" built-in since some | |
195 | ?X: systems like HP-UX have a binary called /bin/alias. | |
196 | if (PATH=.; alias -x) >/dev/null 2>&1; then | |
197 | inksh=true | |
198 | fi | |
199 | ?X: On HP-UX, large Configure scripts may exercise a bug in /bin/sh, use ksh | |
200 | if test -f /hp-ux -a -f /bin/ksh; then | |
201 | needksh='to avoid sh bug in "here document" expansion' | |
202 | fi | |
203 | ?X: On AIX4, /bin/sh is really ksh and it causes problems, use sh | |
204 | if test -d /usr/lpp -a -f /usr/bin/bsh -a -f /usr/bin/uname; then | |
205 | if test X`/usr/bin/uname -v` = X4; then | |
206 | avoidksh="to avoid AIX 4's /bin/sh" | |
207 | newsh=/usr/bin/bsh | |
208 | fi | |
209 | fi | |
210 | ?X: On Digital UNIX, /bin/sh may start up buggy /bin/ksh, use sh | |
211 | if test -f /osf_boot -a -f /usr/sbin/setld; then | |
212 | if test X`/usr/bin/uname -s` = XOSF1; then | |
213 | avoidksh="to avoid Digital UNIX' ksh" | |
214 | newsh=/bin/sh | |
215 | unset BIN_SH # if this is 'xpg4' sh will start up ksh | |
216 | fi | |
217 | fi | |
218 | ?X: If we are not in ksh and need it, then feed us back to it | |
219 | case "$inksh/$needksh" in | |
220 | /[a-z]*) | |
221 | ?X: Unset ENV to avoid any ~/.kshrc that could alias cd or whatever... | |
222 | ENV='' | |
223 | changesh=true | |
224 | reason="$needksh" | |
225 | ;; | |
226 | esac | |
227 | ?X: If we are in ksh and must avoid it, then feed us back to a new shell | |
228 | case "$inksh/$avoidksh" in | |
229 | true/[a-z]*) | |
230 | changesh=true | |
231 | reason="$avoidksh" | |
232 | ;; | |
233 | esac | |
234 | ?X: Warn them if they use ksh on other systems, which are those where | |
235 | ?X: we don't need ksh nor want to avoid it explicitely, yet are using it. | |
236 | case "$inksh/$needksh-$avoidksh-" in | |
237 | true/--) | |
238 | cat <<EOM | |
239 | (I see you are using the Korn shell. Some ksh's blow up on $me, | |
240 | mainly on older exotic systems. If yours does, try the Bourne shell instead.) | |
241 | EOM | |
242 | ;; | |
243 | esac | |
244 | case "$changesh" in | |
245 | true) | |
26074dbd | 246 | export newsh |
959f3c4c JH |
247 | echo "(Feeding myself to $newsh $reason.)" |
248 | ?X: Make sure they didn't say sh <Configure by checking whether $0 ends | |
249 | ?X: with Configure or not. If they did say sh <../../Configure, then too | |
250 | ?X: bad for them anyway, since we lost that path indication... | |
251 | ?X: Otherwise, execing $0 ensures we keep the full remote source dir | |
252 | ?X: indication for src.U. | |
253 | case "$0" in | |
254 | Configure|*/Configure) exec $newsh $0 "$@";; | |
255 | *) exec $newsh Configure "$@";; | |
256 | esac | |
257 | ;; | |
258 | esac | |
259 | ||
260 | ?X: Unset CDPATH to avoid surprises when using cd under some shells | |
261 | ?X: Can't unset it because that's not portable to very old shells. | |
262 | ?X: Can't set it to '' because then bash 2.02 won't do "cd UU" --AD 6/98. | |
263 | ?X: Don't want to set it to '.' because then ksh prints out the | |
264 | ?X: name of the directory every time you cd to it. --AD 6/98 | |
265 | ?X: In order to inflict the least harm, change it only if it's set. | |
266 | : if needed set CDPATH to a harmless value that is not chatty | |
267 | : avoid bash 2.02 problems with empty CDPATH. | |
268 | case "$CDPATH" in | |
269 | '') ;; | |
270 | *) case "$SHELL" in | |
271 | *bash*) CDPATH='.' ;; | |
272 | *) CDPATH='' ;; | |
273 | esac | |
274 | ;; | |
275 | esac | |
276 | : Configure runs within the UU subdirectory | |
277 | test -d UU || mkdir UU | |
278 | ?X: Use ./* to avoid any confirmation prompts from enhanced shells -- WED | |
279 | cd UU && rm -f ./* | |
280 |