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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 | # Debian and Red Hat, and perhaps other vendors, provide both runtime and |
22 | # development packages for some libraries. The runtime packages contain shared |
23 | # libraries with version information in their names (e.g., libgdbm.so.1.7.3); |
24 | # the development packages supplement this with versionless shared libraries |
25 | # (e.g., libgdbm.so). |
26 | # |
27 | # If you want to link against such a library, you must install the development |
28 | # version of the package. |
29 | # |
30 | # These packages use a -dev naming convention in both Debian and Red Hat: |
31 | # libgdbmg1 (non-development version of GNU libc 2-linked GDBM library) |
32 | # libgdbmg1-dev (development version of GNU libc 2-linked GDBM library) |
33 | # So make sure that for any libraries you wish to link Perl with under |
34 | # Debian or Red Hat you have the -dev packages installed. |
35 | # |
36 | # Some operating systems (e.g., Solaris 2.6) will link to a versioned shared |
37 | # library implicitly. For example, on Solaris, `ld foo.o -lgdbm' will find an |
38 | # appropriate version of libgdbm, if one is available; Linux, however, doesn't |
39 | # do the implicit mapping. |
40 | ignore_versioned_solibs='y' |
41 | |
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42 | # perl goes into the /usr tree. See the Filesystem Standard |
43 | # available via anonymous FTP at tsx-11.mit.edu in |
44 | # /pub/linux/docs/linux-standards/fsstnd. |
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45 | # Allow a command line override, e.g. Configure -Dprefix=/foo/bar |
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46 | case "$prefix" in |
47 | '') prefix='/usr' ;; |
48 | esac |
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49 | |
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50 | # gcc-2.6.3 defines _G_HAVE_BOOL to 1, but doesn't actually supply bool. |
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51 | ccflags="-Dbool=char -DHAS_BOOL $ccflags" |
52 | |
53 | # BSD compatability library no longer needed |
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54 | # 'kaffe' has a /usr/lib/libnet.so which is not at all relevent for perl. |
55 | set `echo X "$libswanted "| sed -e 's/ bsd / /' -e 's/ net / /'` |
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56 | shift |
57 | libswanted="$*" |
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58 | |
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59 | # Configure may fail to find lstat() since it's a static/inline |
60 | # function in <sys/stat.h>. |
61 | d_lstat=define |
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62 | |
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63 | # Explanation? |
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64 | case "$usemymalloc" in |
65 | '') usemymalloc='n' ;; |
66 | esac |
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67 | |
68 | case "$optimize" in |
69 | '') optimize='-O2' ;; |
70 | esac |
71 | |
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72 | # Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com> |
73 | # for this test. |
74 | cat >try.c <<'EOM' |
75 | /* Test for whether ELF binaries are produced */ |
76 | #include <fcntl.h> |
77 | #include <stdlib.h> |
78 | main() { |
79 | char buffer[4]; |
80 | int i=open("a.out",O_RDONLY); |
81 | if(i==-1) |
82 | exit(1); /* fail */ |
83 | if(read(i,&buffer[0],4)<4) |
84 | exit(1); /* fail */ |
85 | if(buffer[0] != 127 || buffer[1] != 'E' || |
86 | buffer[2] != 'L' || buffer[3] != 'F') |
87 | exit(1); /* fail */ |
88 | exit(0); /* succeed (yes, it's ELF) */ |
89 | } |
90 | EOM |
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91 | if ${cc:-gcc} try.c >/dev/null 2>&1 && ./a.out; then |
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92 | cat <<'EOM' >&4 |
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93 | |
94 | You appear to have ELF support. I'll try to use it for dynamic loading. |
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95 | If dynamic loading doesn't work, read hints/linux.sh for further information. |
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96 | EOM |
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97 | |
98 | #For RedHat Linux 3.0.3, you may need to fetch |
99 | # ftp://ftp.redhat.com/pub/redhat-3.0.3/i386/updates/RPMS/ld.so-1.7.14-3.i386.rpm |
100 | # |
101 | |
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102 | else |
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103 | cat <<'EOM' >&4 |
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104 | |
105 | You don't have an ELF gcc. I will use dld if possible. If you are |
106 | using a version of DLD earlier than 3.2.6, or don't have it at all, you |
107 | should probably upgrade. If you are forced to use 3.2.4, you should |
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108 | uncomment a couple of lines in hints/linux.sh and restart Configure so |
109 | that shared libraries will be disallowed. |
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110 | |
111 | EOM |
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112 | lddlflags="-r $lddlflags" |
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113 | # These empty values are so that Configure doesn't put in the |
114 | # Linux ELF values. |
115 | ccdlflags=' ' |
116 | cccdlflags=' ' |
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117 | ccflags="-DOVR_DBL_DIG=14 $ccflags" |
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118 | so='sa' |
119 | dlext='o' |
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120 | nm_so_opt=' ' |
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121 | ## If you are using DLD 3.2.4 which does not support shared libs, |
122 | ## uncomment the next two lines: |
123 | #ldflags="-static" |
124 | #so='none' |
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125 | |
126 | # In addition, on some systems there is a problem with perl and NDBM |
127 | # which causes AnyDBM and NDBM_File to lock up. This is evidenced |
128 | # in the tests as AnyDBM just freezing. Apparently, this only |
129 | # happens on a.out systems, so we disable NDBM for all a.out linux |
130 | # systems. If someone can suggest a more robust test |
131 | # that would be appreciated. |
132 | # |
133 | # More info: |
134 | # Date: Wed, 7 Feb 1996 03:21:04 +0900 |
135 | # From: Jeffrey Friedl <jfriedl@nff.ncl.omron.co.jp> |
136 | # |
137 | # I tried compiling with DBM support and sure enough things locked up |
138 | # just as advertised. Checking into it, I found that the lockup was |
139 | # during the call to dbm_open. Not *in* dbm_open -- but between the call |
140 | # to and the jump into. |
141 | # |
142 | # To make a long story short, making sure that the *.a and *.sa pairs of |
143 | # /usr/lib/lib{m,db,gdbm}.{a,sa} |
144 | # were perfectly in sync took care of it. |
145 | # |
146 | # This will generate a harmless Whoa There! message |
147 | case "$d_dbm_open" in |
148 | '') cat <<'EOM' >&4 |
149 | |
150 | Disabling ndbm. This will generate a Whoa There message in Configure. |
151 | Read hints/linux.sh for further information. |
152 | EOM |
153 | # You can override this with Configure -Dd_dbm_open |
154 | d_dbm_open=undef |
155 | ;; |
156 | esac |
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157 | fi |
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158 | |
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159 | rm -f try.c a.out |
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160 | |
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161 | if /bin/bash -c exit; then |
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162 | echo '' |
163 | echo 'You appear to have a working bash. Good.' |
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164 | else |
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165 | cat << 'EOM' >&4 |
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166 | |
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167 | *********************** Warning! ********************* |
168 | It would appear you have a defective bash shell installed. This is likely to |
169 | give you a failure of op/exec test #5 during the test phase of the build, |
170 | Upgrading to a recent version (1.14.4 or later) should fix the problem. |
171 | ****************************************************** |
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172 | EOM |
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173 | |
174 | fi |
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175 | |
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176 | # On SPARClinux, |
177 | # The following csh consistently coredumped in the test directory |
178 | # "/home/mikedlr/perl5.003_94/t", though not most other directories. |
179 | |
180 | #Name : csh Distribution: Red Hat Linux (Rembrandt) |
181 | #Version : 5.2.6 Vendor: Red Hat Software |
182 | #Release : 3 Build Date: Fri May 24 19:42:14 1996 |
183 | #Install date: Thu Jul 11 16:20:14 1996 Build Host: itchy.redhat.com |
184 | #Group : Shells Source RPM: csh-5.2.6-3.src.rpm |
185 | #Size : 184417 |
186 | #Description : BSD c-shell |
187 | |
188 | # For this reason I suggest using the much bug-fixed tcsh for globbing |
189 | # where available. |
190 | |
191 | if [ ! "`csh -c 'echo $version' 2>/dev/null`" ] |
192 | then |
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193 | echo 'Real csh found (might break); looking for tcsh ...' |
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194 | # Use ./UU/loc to find tcsh. (We no longer run in the hints/ directory) |
195 | if xxx=`./UU/loc tcsh blurfl $pth`; $test -f "$xxx"; then |
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196 | echo "Found tcsh. I'll use it for globbing." |
197 | # We can't change Configure's setting of $csh, due to the way |
198 | # Configure handles $d_portable and commands found in $loclist. |
199 | # We can set the value for CSH in config.h by setting full_csh. |
200 | full_csh=$xxx |
201 | else |
202 | echo "Couldn't find tcsh. BEWARE: GLOBBING MIGHT BE BROKEN." |
203 | fi |
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204 | else |
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205 | echo 'Your csh is really tcsh. Good.' |
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206 | fi |
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207 | |
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208 | # Shimpei Yamashita <shimpei@socrates.patnet.caltech.edu> |
209 | # Message-Id: <33EF1634.B36B6500@pobox.com> |
210 | # |
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211 | # The DR2 of MkLinux (osname=linux,archname=ppc-linux) may need |
212 | # special flags passed in order for dynamic loading to work. |
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213 | # instead of the recommended: |
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214 | # |
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215 | # ccdlflags='-rdynamic' |
216 | # |
217 | # it should be: |
218 | # ccdlflags='-Wl,-E' |
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219 | # |
220 | # So if your DR2 (DR3 came out summer 1998, consider upgrading) |
221 | # has problems with dynamic loading, uncomment the |
222 | # following three lines, make distclean, and re-Configure: |
223 | #case "`uname -r | sed 's/^[0-9.-]*//'``arch`" in |
224 | #'osfmach3ppc') ccdlflags='-Wl,-E' ;; |
225 | #esac |
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226 | |
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227 | # This script UU/usethreads.cbu will get 'called-back' by Configure |
228 | # after it has prompted the user for whether to use threads. |
229 | cat > UU/usethreads.cbu <<'EOCBU' |
230 | case "$usethreads" in |
231 | $define|true|[yY]*) |
232 | ccflags="-D_REENTRANT $ccflags" |
233 | set `echo X "$libswanted "| sed -e 's/ c / pthread c /'` |
234 | shift |
235 | libswanted="$*" |
236 | ;; |
237 | esac |
238 | EOCBU |