1 # $Id: dgux.sh,v 1.8 1996-11-29 18:16:43-05 roderick Exp $
3 # This is a hints file for DGUX, which is Data General's Unix. It was
4 # originally developed with version 5.4.3.10 of the OS, and then was
5 # later updated running under version 4.11.2 (running on m88k hardware).
6 # The gross features should work with versions going back to 2.nil but
7 # some tweaking will probably be necessary.
9 # DGUX is a SVR4 derivative. It ships with gcc as the standard
10 # compiler. Since version 3.0 it has shipped with Perl 4.036
11 # installed in /usr/bin, which is kind of neat. Be careful when you
12 # install that you don't overwrite the system version, though (by
13 # answering yes to the question about installing perl as /usr/bin/perl),
14 # as it would suck to try to get support if the vendor learned that you
15 # were physically replacing the system binaries.
17 # -Roderick Schertler <roderick@argon.org>
19 # Here are the things from some old DGUX hints files which are different
20 # from what's in here now. I don't know the exact reasons that most of
21 # these settings were in the hints files, presumably they can be chalked
22 # up to old Configure inadequacies and changes in the OS headers and the
23 # like. These settings might make a good place to start looking if you
26 # This was specified the the 4.036 hints file. That hints file didn't
27 # say what version of the OS it was developed using.
31 # The 4.036 and 5.001 hints files both contained these. The 5.001 hints
32 # file said it was developed with version 2.01 of DGUX.
40 # These were peculiar to the 5.001 hints file.
42 # ccflags='-D_POSIX_SOURCE -D_DGUX_SOURCE'
44 # # an ugly hack, since the Configure test for "gcc -P -" hangs.
45 # # can't just use 'cppstdin', since our DG has a broken cppstdin :-(
46 # cppstdin=`cd ..; pwd`/cppstdin
47 # cpprun=`cd ..; pwd`/cppstdin
49 # One last note: The 5.001 hints file said "you don't want to use
50 # /usr/ucb/cc" in the place at which it set cc to gcc. That in
51 # particular baffles me, as I used to have 2.01 loaded and my memory
52 # is telling me that even then /usr/ucb was a symlink to /usr/bin.
55 # The standard system compiler is gcc, but invoking it as cc changes its
56 # behavior. I have to pick one name or the other so I can get the
57 # dynamic loading switches right (they vary depending on this). I'm
58 # picking gcc because there's no way to get at the optimization options
59 # and so on when you call it cc.
71 # DG has this thing set up with symlinks which point to different places
72 # depending on environment variables (see elink(5)) and the compiler and
73 # related tools use them to access different development environments
74 # (COFF, ELF, m88k BCS and so on), see sde(5). The upshot, however, is
75 # that when a normal program tries to access one of these elinks it sees
76 # no such file (like stat()ting a mis-directed symlink). Setting
77 # $plibpth to explicitly include the place to which the elinks point
78 # allows Configure to find libraries which vary based on the development
81 # Starting with version 4.10 (the first time the OS supported Intel
82 # hardware) all libraries are accessed with this mechanism.
84 # The default $TARGET_BINARY_INTERFACE changed with version 4.10. The
85 # system now comes with a link named /usr/sde/default which points to
86 # the proper entry, but older versions lacked this and used m88kdgux
89 : && sde_path=${SDE_PATH:-/usr}/sde # hide from Configure
92 if [ -n "$TARGET_BINARY_INTERFACE" ]
93 then set X "$TARGET_BINARY_INTERFACE"
94 else set X default dg m88k_dg ix86_dg m88kdgux m88kdguxelf
100 [ -d "$sde_path/$sde" ] && break 2
104 NOTE: I can't figure out what SDE is used by default on this machine (I
105 didn't find a likely directory under $sde_path). This is bad news. If
106 this is a R4.10 or newer system I'm not going to be able to find any of
107 your libraries, if this system is R3.10 or older I won't be able to find
108 the math library. You should re-run Configure with the environment
109 variable TARGET_BINARY_INTERFACE set to the proper value for this
110 machine, see sde(5) and the notes in hints/dgux.sh.
117 plibpth="$plibpth $sde_path/$sde/usr/lib"
118 unset sde_path default_sde sde
120 # Many functions (eg, gethostent(), killpg(), getpriority(), setruid()
121 # dbm_*(), and plenty more) are defined in -ldgc. Usually you don't
122 # need to know this (it seems that libdgc.so is searched automatically
123 # by ld), but Configure needs to check it otherwise it will report all
124 # those functions as missing.
125 libswanted="dgc $libswanted"
127 # Dynamic loading works using the dlopen() functions. Note that dlfcn.h
128 # used to be broken, it declared _dl*() rather than dl*(). This was the
129 # case up to 3.10, it has been fixed in 4.11. I'm not sure if it was
130 # fixed in 4.10. If you have the older header just ignore the warnings
131 # (since pointers and integers have the same format on m88k).
133 # For cc rather than gcc the flags would be `-K PIC' for compiling and
134 # -G for loading. I haven't tested this.