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