1 | # $Id: dgux.sh,v 1.1.1.3 2000-04-07 20:39:45 ghudson Exp $ |
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2 | |
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3 | # This is a hints file for DGUX, which is Data General's Unix. It was |
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4 | # originally developed with version 5.4.3.10 of the OS, and then was |
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5 | # later updated running under version 4.11.2 (running on m88k hardware). |
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6 | # The gross features should work with versions going back to 2.nil but |
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7 | # some tweaking will probably be necessary. |
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8 | # |
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9 | # DGUX is a SVR4 derivative. It ships with gcc as the standard |
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10 | # compiler. Since version 3.0 it has shipped with Perl 4.036 |
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11 | # installed in /usr/bin, which is kind of neat. Be careful when you |
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12 | # install that you don't overwrite the system version, though (by |
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13 | # answering yes to the question about installing perl as /usr/bin/perl), |
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14 | # as it would suck to try to get support if the vendor learned that you |
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15 | # were physically replacing the system binaries. |
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16 | # |
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17 | # -Roderick Schertler <roderick@argon.org> |
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18 | |
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19 | # Here are the things from some old DGUX hints files which are different |
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20 | # from what's in here now. I don't know the exact reasons that most of |
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21 | # these settings were in the hints files, presumably they can be chalked |
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22 | # up to old Configure inadequacies and changes in the OS headers and the |
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23 | # like. These settings might make a good place to start looking if you |
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24 | # have problems. |
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25 | # |
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26 | # This was specified the the 4.036 hints file. That hints file didn't |
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27 | # say what version of the OS it was developed using. |
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28 | # |
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29 | # cppstdin='/lib/cpp' |
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30 | # |
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31 | # The 4.036 and 5.001 hints files both contained these. The 5.001 hints |
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32 | # file said it was developed with version 2.01 of DGUX. |
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33 | # |
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34 | # gidtype='gid_t' |
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35 | # groupstype='gid_t' |
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36 | # uidtype='uid_t' |
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37 | # d_index='define' |
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38 | # cc='gcc' |
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39 | # |
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40 | # These were peculiar to the 5.001 hints file. |
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41 | # |
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42 | # ccflags='-D_POSIX_SOURCE -D_DGUX_SOURCE' |
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43 | # |
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44 | # # an ugly hack, since the Configure test for "gcc -P -" hangs. |
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45 | # # can't just use 'cppstdin', since our DG has a broken cppstdin :-( |
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46 | # cppstdin=`cd ..; pwd`/cppstdin |
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47 | # cpprun=`cd ..; pwd`/cppstdin |
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48 | # |
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49 | # One last note: The 5.001 hints file said "you don't want to use |
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50 | # /usr/ucb/cc" in the place at which it set cc to gcc. That in |
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51 | # particular baffles me, as I used to have 2.01 loaded and my memory |
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52 | # is telling me that even then /usr/ucb was a symlink to /usr/bin. |
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53 | |
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54 | |
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55 | # The standard system compiler is gcc, but invoking it as cc changes its |
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56 | # behavior. I have to pick one name or the other so I can get the |
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57 | # dynamic loading switches right (they vary depending on this). I'm |
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58 | # picking gcc because there's no way to get at the optimization options |
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59 | # and so on when you call it cc. |
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60 | case $cc in |
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61 | '') |
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62 | cc=gcc |
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63 | case $optimize in |
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64 | '') optimize=-O2;; |
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65 | esac |
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66 | ;; |
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67 | esac |
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68 | |
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69 | usevfork=true |
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70 | |
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71 | # DG has this thing set up with symlinks which point to different places |
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72 | # depending on environment variables (see elink(5)) and the compiler and |
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73 | # related tools use them to access different development environments |
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74 | # (COFF, ELF, m88k BCS and so on), see sde(5). The upshot, however, is |
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75 | # that when a normal program tries to access one of these elinks it sees |
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76 | # no such file (like stat()ting a mis-directed symlink). Setting |
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77 | # $plibpth to explicitly include the place to which the elinks point |
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78 | # allows Configure to find libraries which vary based on the development |
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79 | # environment. |
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80 | # |
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81 | # Starting with version 4.10 (the first time the OS supported Intel |
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82 | # hardware) all libraries are accessed with this mechanism. |
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83 | # |
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84 | # The default $TARGET_BINARY_INTERFACE changed with version 4.10. The |
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85 | # system now comes with a link named /usr/sde/default which points to |
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86 | # the proper entry, but older versions lacked this and used m88kdgux |
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87 | # directly. |
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88 | |
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89 | : && sde_path=${SDE_PATH:-/usr}/sde # hide from Configure |
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90 | while : # dummy loop |
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91 | do |
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92 | if [ -n "$TARGET_BINARY_INTERFACE" ] |
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93 | then set X "$TARGET_BINARY_INTERFACE" |
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94 | else set X default dg m88k_dg ix86_dg m88kdgux m88kdguxelf |
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95 | fi |
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96 | shift |
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97 | default_sde=$1 |
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98 | for sde |
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99 | do |
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100 | [ -d "$sde_path/$sde" ] && break 2 |
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101 | done |
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102 | cat <<END >&2 |
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103 | |
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104 | NOTE: I can't figure out what SDE is used by default on this machine (I |
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105 | didn't find a likely directory under $sde_path). This is bad news. If |
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106 | this is a R4.10 or newer system I'm not going to be able to find any of |
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107 | your libraries, if this system is R3.10 or older I won't be able to find |
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108 | the math library. You should re-run Configure with the environment |
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109 | variable TARGET_BINARY_INTERFACE set to the proper value for this |
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110 | machine, see sde(5) and the notes in hints/dgux.sh. |
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111 | |
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112 | END |
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113 | sde=$default_sde |
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114 | break |
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115 | done |
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116 | |
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117 | plibpth="$plibpth $sde_path/$sde/usr/lib" |
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118 | unset sde_path default_sde sde |
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119 | |
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120 | # Many functions (eg, gethostent(), killpg(), getpriority(), setruid() |
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121 | # dbm_*(), and plenty more) are defined in -ldgc. Usually you don't |
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122 | # need to know this (it seems that libdgc.so is searched automatically |
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123 | # by ld), but Configure needs to check it otherwise it will report all |
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124 | # those functions as missing. |
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125 | libswanted="dgc $libswanted" |
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126 | |
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127 | # Dynamic loading works using the dlopen() functions. Note that dlfcn.h |
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128 | # used to be broken, it declared _dl*() rather than dl*(). This was the |
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129 | # case up to 3.10, it has been fixed in 4.11. I'm not sure if it was |
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130 | # fixed in 4.10. If you have the older header just ignore the warnings |
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131 | # (since pointers and integers have the same format on m88k). |
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132 | usedl=true |
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133 | # For cc rather than gcc the flags would be `-K PIC' for compiling and |
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134 | # -G for loading. I haven't tested this. |
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135 | cccdlflags=-fpic |
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136 | lddlflags=-shared |
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