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1 | # hints/linux.sh |
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2 | # Original version by rsanders |
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3 | # Additional support by Kenneth Albanowski <kjahds@kjahds.com> |
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4 | # |
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5 | # ELF support by H.J. Lu <hjl@nynexst.com> |
6 | # Additional info from Nigel Head <nhead@ESOC.bitnet> |
7 | # and Kenneth Albanowski <kjahds@kjahds.com> |
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8 | # |
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9 | # Consolidated by Andy Dougherty <doughera@lafcol.lafayette.edu> |
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10 | # |
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11 | # Updated Thu Feb 8 11:56:10 EST 1996 |
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12 | |
13 | # Updated Thu May 30 10:50:22 EDT 1996 by <doughera@lafcol.lafayette.edu> |
14 | |
15 | # Updated Fri Jun 21 11:07:54 EDT 1996 |
16 | # NDBM support for ELF renabled by <kjahds@kjahds.com> |
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17 | |
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18 | # No version of Linux supports setuid scripts. |
19 | d_suidsafe='undef' |
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20 | #don't force people to install SUID if they don't want to (have said |
21 | #-Dd_dosuid=undef explicitly on command line) - MIKEDLR |
22 | if [ ! "A$d_dosuid" = "Aundef" ] #do I need to be paranoid here? |
23 | then |
24 | d_dosuid='define' |
25 | fi |
26 | |
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27 | |
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28 | # perl goes into the /usr tree. See the Filesystem Standard |
29 | # available via anonymous FTP at tsx-11.mit.edu in |
30 | # /pub/linux/docs/linux-standards/fsstnd. |
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31 | # Allow a command line override, e.g. Configure -Dprefix=/foo/bar |
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32 | case "$prefix" in |
33 | '') prefix='/usr' ;; |
34 | esac |
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35 | |
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36 | # gcc-2.6.3 defines _G_HAVE_BOOL to 1, but doesn't actually supply bool. |
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37 | ccflags="-Dbool=char -DHAS_BOOL $ccflags" |
38 | |
39 | # BSD compatability library no longer needed |
40 | set `echo X "$libswanted "| sed -e 's/ bsd / /'` |
41 | shift |
42 | libswanted="$*" |
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43 | |
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44 | # Configure may fail to find lstat() since it's a static/inline |
45 | # function in <sys/stat.h>. |
46 | d_lstat=define |
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47 | |
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48 | # Explanation? |
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49 | case "$usemymalloc" in |
50 | '') usemymalloc='n' ;; |
51 | esac |
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52 | |
53 | case "$optimize" in |
54 | '') optimize='-O2' ;; |
55 | esac |
56 | |
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57 | # Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com> |
58 | # for this test. |
59 | cat >try.c <<'EOM' |
60 | /* Test for whether ELF binaries are produced */ |
61 | #include <fcntl.h> |
62 | #include <stdlib.h> |
63 | main() { |
64 | char buffer[4]; |
65 | int i=open("a.out",O_RDONLY); |
66 | if(i==-1) |
67 | exit(1); /* fail */ |
68 | if(read(i,&buffer[0],4)<4) |
69 | exit(1); /* fail */ |
70 | if(buffer[0] != 127 || buffer[1] != 'E' || |
71 | buffer[2] != 'L' || buffer[3] != 'F') |
72 | exit(1); /* fail */ |
73 | exit(0); /* succeed (yes, it's ELF) */ |
74 | } |
75 | EOM |
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76 | if ${cc:-gcc} try.c >/dev/null 2>&1 && ./a.out; then |
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77 | cat <<'EOM' >&4 |
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78 | |
79 | You appear to have ELF support. I'll try to use it for dynamic loading. |
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80 | If dynamic loading doesn't work, read hints/linux.sh for further information. |
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81 | EOM |
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82 | |
83 | #For RedHat Linux 3.0.3, you may need to fetch |
84 | # ftp://ftp.redhat.com/pub/redhat-3.0.3/i386/updates/RPMS/ld.so-1.7.14-3.i386.rpm |
85 | # |
86 | |
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87 | else |
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88 | cat <<'EOM' >&4 |
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89 | |
90 | You don't have an ELF gcc. I will use dld if possible. If you are |
91 | using a version of DLD earlier than 3.2.6, or don't have it at all, you |
92 | should probably upgrade. If you are forced to use 3.2.4, you should |
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93 | uncomment a couple of lines in hints/linux.sh and restart Configure so |
94 | that shared libraries will be disallowed. |
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95 | |
96 | EOM |
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97 | lddlflags="-r $lddlflags" |
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98 | # These empty values are so that Configure doesn't put in the |
99 | # Linux ELF values. |
100 | ccdlflags=' ' |
101 | cccdlflags=' ' |
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102 | ccflags="-DOVR_DBL_DIG=14 $ccflags" |
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103 | so='sa' |
104 | dlext='o' |
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105 | nm_so_opt=' ' |
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106 | ## If you are using DLD 3.2.4 which does not support shared libs, |
107 | ## uncomment the next two lines: |
108 | #ldflags="-static" |
109 | #so='none' |
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110 | |
111 | # In addition, on some systems there is a problem with perl and NDBM |
112 | # which causes AnyDBM and NDBM_File to lock up. This is evidenced |
113 | # in the tests as AnyDBM just freezing. Apparently, this only |
114 | # happens on a.out systems, so we disable NDBM for all a.out linux |
115 | # systems. If someone can suggest a more robust test |
116 | # that would be appreciated. |
117 | # |
118 | # More info: |
119 | # Date: Wed, 7 Feb 1996 03:21:04 +0900 |
120 | # From: Jeffrey Friedl <jfriedl@nff.ncl.omron.co.jp> |
121 | # |
122 | # I tried compiling with DBM support and sure enough things locked up |
123 | # just as advertised. Checking into it, I found that the lockup was |
124 | # during the call to dbm_open. Not *in* dbm_open -- but between the call |
125 | # to and the jump into. |
126 | # |
127 | # To make a long story short, making sure that the *.a and *.sa pairs of |
128 | # /usr/lib/lib{m,db,gdbm}.{a,sa} |
129 | # were perfectly in sync took care of it. |
130 | # |
131 | # This will generate a harmless Whoa There! message |
132 | case "$d_dbm_open" in |
133 | '') cat <<'EOM' >&4 |
134 | |
135 | Disabling ndbm. This will generate a Whoa There message in Configure. |
136 | Read hints/linux.sh for further information. |
137 | EOM |
138 | # You can override this with Configure -Dd_dbm_open |
139 | d_dbm_open=undef |
140 | ;; |
141 | esac |
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142 | fi |
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143 | |
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144 | rm -f try.c a.out |
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145 | |
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146 | if /bin/bash -c exit; then |
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147 | echo '' |
148 | echo 'You appear to have a working bash. Good.' |
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149 | else |
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150 | cat << 'EOM' >&4 |
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151 | |
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152 | *********************** Warning! ********************* |
153 | It would appear you have a defective bash shell installed. This is likely to |
154 | give you a failure of op/exec test #5 during the test phase of the build, |
155 | Upgrading to a recent version (1.14.4 or later) should fix the problem. |
156 | ****************************************************** |
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157 | EOM |
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158 | |
159 | fi |
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160 | |
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161 | # On SPARClinux, |
162 | # The following csh consistently coredumped in the test directory |
163 | # "/home/mikedlr/perl5.003_94/t", though not most other directories. |
164 | |
165 | #Name : csh Distribution: Red Hat Linux (Rembrandt) |
166 | #Version : 5.2.6 Vendor: Red Hat Software |
167 | #Release : 3 Build Date: Fri May 24 19:42:14 1996 |
168 | #Install date: Thu Jul 11 16:20:14 1996 Build Host: itchy.redhat.com |
169 | #Group : Shells Source RPM: csh-5.2.6-3.src.rpm |
170 | #Size : 184417 |
171 | #Description : BSD c-shell |
172 | |
173 | # For this reason I suggest using the much bug-fixed tcsh for globbing |
174 | # where available. |
175 | |
176 | if [ ! "`csh -c 'echo $version' 2>/dev/null`" ] |
177 | then |
178 | echo 'Real csh found (might break); looking for tcsh ...' |
179 | if which tcsh >/dev/null 2>&1 |
180 | then |
181 | echo 'Found tcsh; will use it for globbing.' |
182 | csh='tcsh' |
183 | d_csh='tcsh' |
184 | full_csh=`which tcsh` # we know this will work now. |
185 | else |
186 | echo "Couldn't find tcsh. BEWARE BROKEN GLOBBING." |
187 | fi |
188 | else |
189 | echo 'Your csh is really tcsh. Good.' |
190 | fi |