| 1 | # $Id: dgux.sh,v 1.8 1996-11-29 18:16:43-05 roderick Exp $ |
| 2 | |
| 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. |
| 8 | # |
| 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. |
| 16 | # |
| 17 | # -Roderick Schertler <roderick@argon.org> |
| 18 | |
| 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 |
| 24 | # have problems. |
| 25 | # |
| 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. |
| 28 | # |
| 29 | # cppstdin='/lib/cpp' |
| 30 | # |
| 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. |
| 33 | # |
| 34 | # gidtype='gid_t' |
| 35 | # groupstype='gid_t' |
| 36 | # uidtype='uid_t' |
| 37 | # d_index='define' |
| 38 | # cc='gcc' |
| 39 | # |
| 40 | # These were peculiar to the 5.001 hints file. |
| 41 | # |
| 42 | # ccflags='-D_POSIX_SOURCE -D_DGUX_SOURCE' |
| 43 | # |
| 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 |
| 48 | # |
| 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. |
| 53 | |
| 54 | |
| 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. |
| 60 | case $cc in |
| 61 | '') |
| 62 | cc=gcc |
| 63 | case $optimize in |
| 64 | '') optimize=-O2;; |
| 65 | esac |
| 66 | ;; |
| 67 | esac |
| 68 | |
| 69 | usevfork=true |
| 70 | |
| 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 |
| 79 | # environment. |
| 80 | # |
| 81 | # Starting with version 4.10 (the first time the OS supported Intel |
| 82 | # hardware) all libraries are accessed with this mechanism. |
| 83 | # |
| 84 | # The default $TARGET_BINARY_INTERFACE changed with version 4.10. The |
| 85 | # system now comes with a link named /usr/sde/default which points to |
| 86 | # the proper entry, but older versions lacked this and used m88kdgux |
| 87 | # directly. |
| 88 | |
| 89 | : && sde_path=${SDE_PATH:-/usr}/sde # hide from Configure |
| 90 | while : # dummy loop |
| 91 | do |
| 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 |
| 95 | fi |
| 96 | shift |
| 97 | default_sde=$1 |
| 98 | for sde |
| 99 | do |
| 100 | [ -d "$sde_path/$sde" ] && break 2 |
| 101 | done |
| 102 | cat <<END >&2 |
| 103 | |
| 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 $sde_path). This is bad news. If |
| 106 | this is a R4.10 or newer system I'm not going to be able to find any of |
| 107 | your libraries, if this system is R3.10 or older I won't be able to find |
| 108 | the math library. You should re-run Configure with the environment |
| 109 | variable TARGET_BINARY_INTERFACE set to the proper value for this |
| 110 | machine, see sde(5) and the notes in hints/dgux.sh. |
| 111 | |
| 112 | END |
| 113 | sde=$default_sde |
| 114 | break |
| 115 | done |
| 116 | |
| 117 | plibpth="$plibpth $sde_path/$sde/usr/lib" |
| 118 | unset sde_path default_sde sde |
| 119 | |
| 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" |
| 126 | |
| 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). |
| 132 | usedl=true |
| 133 | # For cc rather than gcc the flags would be `-K PIC' for compiling and |
| 134 | # -G for loading. I haven't tested this. |
| 135 | cccdlflags=-fpic |
| 136 | lddlflags=-shared |