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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 | |
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21 | # perl goes into the /usr tree. See the Filesystem Standard |
22 | # available via anonymous FTP at tsx-11.mit.edu in |
23 | # /pub/linux/docs/linux-standards/fsstnd. |
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24 | # Allow a command line override, e.g. Configure -Dprefix=/foo/bar |
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25 | case "$prefix" in |
26 | '') prefix='/usr' ;; |
27 | esac |
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28 | |
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29 | # gcc-2.6.3 defines _G_HAVE_BOOL to 1, but doesn't actually supply bool. |
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30 | ccflags="-Dbool=char -DHAS_BOOL $ccflags" |
31 | |
32 | # BSD compatability library no longer needed |
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33 | # 'kaffe' has a /usr/lib/libnet.so which is not at all relevent for perl. |
34 | set `echo X "$libswanted "| sed -e 's/ bsd / /' -e 's/ net / /'` |
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35 | shift |
36 | libswanted="$*" |
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37 | |
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38 | # Configure may fail to find lstat() since it's a static/inline |
39 | # function in <sys/stat.h>. |
40 | d_lstat=define |
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41 | |
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42 | # Explanation? |
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43 | case "$usemymalloc" in |
44 | '') usemymalloc='n' ;; |
45 | esac |
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46 | |
47 | case "$optimize" in |
48 | '') optimize='-O2' ;; |
49 | esac |
50 | |
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51 | # Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com> |
52 | # for this test. |
53 | cat >try.c <<'EOM' |
54 | /* Test for whether ELF binaries are produced */ |
55 | #include <fcntl.h> |
56 | #include <stdlib.h> |
57 | main() { |
58 | char buffer[4]; |
59 | int i=open("a.out",O_RDONLY); |
60 | if(i==-1) |
61 | exit(1); /* fail */ |
62 | if(read(i,&buffer[0],4)<4) |
63 | exit(1); /* fail */ |
64 | if(buffer[0] != 127 || buffer[1] != 'E' || |
65 | buffer[2] != 'L' || buffer[3] != 'F') |
66 | exit(1); /* fail */ |
67 | exit(0); /* succeed (yes, it's ELF) */ |
68 | } |
69 | EOM |
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70 | if ${cc:-gcc} try.c >/dev/null 2>&1 && ./a.out; then |
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71 | cat <<'EOM' >&4 |
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72 | |
73 | You appear to have ELF support. I'll try to use it for dynamic loading. |
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74 | If dynamic loading doesn't work, read hints/linux.sh for further information. |
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75 | EOM |
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76 | |
77 | #For RedHat Linux 3.0.3, you may need to fetch |
78 | # ftp://ftp.redhat.com/pub/redhat-3.0.3/i386/updates/RPMS/ld.so-1.7.14-3.i386.rpm |
79 | # |
80 | |
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81 | else |
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82 | cat <<'EOM' >&4 |
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83 | |
84 | You don't have an ELF gcc. I will use dld if possible. If you are |
85 | using a version of DLD earlier than 3.2.6, or don't have it at all, you |
86 | should probably upgrade. If you are forced to use 3.2.4, you should |
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87 | uncomment a couple of lines in hints/linux.sh and restart Configure so |
88 | that shared libraries will be disallowed. |
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89 | |
90 | EOM |
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91 | lddlflags="-r $lddlflags" |
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92 | # These empty values are so that Configure doesn't put in the |
93 | # Linux ELF values. |
94 | ccdlflags=' ' |
95 | cccdlflags=' ' |
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96 | ccflags="-DOVR_DBL_DIG=14 $ccflags" |
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97 | so='sa' |
98 | dlext='o' |
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99 | nm_so_opt=' ' |
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100 | ## If you are using DLD 3.2.4 which does not support shared libs, |
101 | ## uncomment the next two lines: |
102 | #ldflags="-static" |
103 | #so='none' |
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104 | |
105 | # In addition, on some systems there is a problem with perl and NDBM |
106 | # which causes AnyDBM and NDBM_File to lock up. This is evidenced |
107 | # in the tests as AnyDBM just freezing. Apparently, this only |
108 | # happens on a.out systems, so we disable NDBM for all a.out linux |
109 | # systems. If someone can suggest a more robust test |
110 | # that would be appreciated. |
111 | # |
112 | # More info: |
113 | # Date: Wed, 7 Feb 1996 03:21:04 +0900 |
114 | # From: Jeffrey Friedl <jfriedl@nff.ncl.omron.co.jp> |
115 | # |
116 | # I tried compiling with DBM support and sure enough things locked up |
117 | # just as advertised. Checking into it, I found that the lockup was |
118 | # during the call to dbm_open. Not *in* dbm_open -- but between the call |
119 | # to and the jump into. |
120 | # |
121 | # To make a long story short, making sure that the *.a and *.sa pairs of |
122 | # /usr/lib/lib{m,db,gdbm}.{a,sa} |
123 | # were perfectly in sync took care of it. |
124 | # |
125 | # This will generate a harmless Whoa There! message |
126 | case "$d_dbm_open" in |
127 | '') cat <<'EOM' >&4 |
128 | |
129 | Disabling ndbm. This will generate a Whoa There message in Configure. |
130 | Read hints/linux.sh for further information. |
131 | EOM |
132 | # You can override this with Configure -Dd_dbm_open |
133 | d_dbm_open=undef |
134 | ;; |
135 | esac |
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136 | fi |
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137 | |
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138 | rm -f try.c a.out |
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139 | |
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140 | if /bin/bash -c exit; then |
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141 | echo '' |
142 | echo 'You appear to have a working bash. Good.' |
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143 | else |
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144 | cat << 'EOM' >&4 |
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145 | |
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146 | *********************** Warning! ********************* |
147 | It would appear you have a defective bash shell installed. This is likely to |
148 | give you a failure of op/exec test #5 during the test phase of the build, |
149 | Upgrading to a recent version (1.14.4 or later) should fix the problem. |
150 | ****************************************************** |
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151 | EOM |
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152 | |
153 | fi |
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154 | |
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155 | # On SPARClinux, |
156 | # The following csh consistently coredumped in the test directory |
157 | # "/home/mikedlr/perl5.003_94/t", though not most other directories. |
158 | |
159 | #Name : csh Distribution: Red Hat Linux (Rembrandt) |
160 | #Version : 5.2.6 Vendor: Red Hat Software |
161 | #Release : 3 Build Date: Fri May 24 19:42:14 1996 |
162 | #Install date: Thu Jul 11 16:20:14 1996 Build Host: itchy.redhat.com |
163 | #Group : Shells Source RPM: csh-5.2.6-3.src.rpm |
164 | #Size : 184417 |
165 | #Description : BSD c-shell |
166 | |
167 | # For this reason I suggest using the much bug-fixed tcsh for globbing |
168 | # where available. |
169 | |
170 | if [ ! "`csh -c 'echo $version' 2>/dev/null`" ] |
171 | then |
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172 | echo 'Real csh found (might break); looking for tcsh ...' |
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173 | # Use ./UU/loc to find tcsh. (We no longer run in the hints/ directory) |
174 | if xxx=`./UU/loc tcsh blurfl $pth`; $test -f "$xxx"; then |
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175 | echo "Found tcsh. I'll use it for globbing." |
176 | # We can't change Configure's setting of $csh, due to the way |
177 | # Configure handles $d_portable and commands found in $loclist. |
178 | # We can set the value for CSH in config.h by setting full_csh. |
179 | full_csh=$xxx |
180 | else |
181 | echo "Couldn't find tcsh. BEWARE: GLOBBING MIGHT BE BROKEN." |
182 | fi |
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183 | else |
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184 | echo 'Your csh is really tcsh. Good.' |
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185 | fi |
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186 | |
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187 | # Shimpei Yamashita <shimpei@socrates.patnet.caltech.edu> |
188 | # Message-Id: <33EF1634.B36B6500@pobox.com> |
189 | # |
190 | # MkLinux (osname=linux,archname=ppc-linux), which differs slightly from other |
191 | # linuces, needs special flags passed in order for dynamic loading to work. |
192 | # instead of the recommended: |
193 | # ccdlflags='-rdynamic' |
194 | # |
195 | # it should be: |
196 | # ccdlflags='-Wl,-E' |
197 | |
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198 | # XXX EXPERIMENTAL A.D. 2/27/1998 |
199 | # XXX This script UU/usethreads.cbu will get 'called-back' by Configure |
200 | # XXX after it has prompted the user for whether to use threads. |
201 | cat > UU/usethreads.cbu <<'EOSH' |
202 | case "$usethreads" in |
203 | $define|true|[yY]*) |
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204 | ccflags="-D_REENTRANT $ccflags" |
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205 | # -lpthread needs to come before -lc but after other libraries such |
206 | # as -lgdbm and such like. We assume here that -lc is present in |
207 | # libswanted. If that fails to be true in future, then this can be |
208 | # changed to add pthread to the very end of libswanted. |
209 | set `echo X "$libswanted "| sed -e 's/ c / pthread c /'` |
210 | shift |
211 | libswanted="$*" |
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212 | ;; |
213 | esac |
214 | EOSH |
215 | # XXX EXPERIMENTAL --end of call-back |