Commit | Line | Data |
---|---|---|
1aef975c | 1 | # hints/linux.sh |
a0d0e21e | 2 | # Original version by rsanders |
1fc4cb55 | 3 | # Additional support by Kenneth Albanowski <kjahds@kjahds.com> |
1aef975c | 4 | # |
232e078e AD |
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> | |
1aef975c | 8 | # |
c3404dc3 | 9 | # Consolidated by Andy Dougherty <doughera@lafayette.edu> |
1fc4cb55 | 10 | # |
9bed9d38 | 11 | # Updated Thu Feb 8 11:56:10 EST 1996 |
ef0c9946 | 12 | |
c3404dc3 | 13 | # Updated Thu May 30 10:50:22 EDT 1996 by <doughera@lafayette.edu> |
ef0c9946 | 14 | |
15 | # Updated Fri Jun 21 11:07:54 EDT 1996 | |
16 | # NDBM support for ELF renabled by <kjahds@kjahds.com> | |
232e078e | 17 | |
f3db1d4d CS |
18 | # No version of Linux supports setuid scripts. |
19 | d_suidsafe='undef' | |
f3db1d4d | 20 | |
1cfa4ec7 GS |
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 | ||
4bf4dbb3 | 42 | # BSD compatability library no longer needed |
693762b4 AD |
43 | # 'kaffe' has a /usr/lib/libnet.so which is not at all relevent for perl. |
44 | set `echo X "$libswanted "| sed -e 's/ bsd / /' -e 's/ net / /'` | |
4bf4dbb3 | 45 | shift |
46 | libswanted="$*" | |
1fc4cb55 | 47 | |
a4ea3e34 AD |
48 | # If you have glibc, then report the version for ./myconfig bug reporting. |
49 | # (Configure doesn't need to know the specific version since it just uses | |
50 | # gcc to load the library for all tests.) | |
f443a56e | 51 | # We don't use __GLIBC__ and __GLIBC_MINOR__ because they |
a4ea3e34 AD |
52 | # are insufficiently precise to distinguish things like |
53 | # libc-2.0.6 and libc-2.0.7. | |
54 | if test -L /lib/libc.so.6; then | |
55 | libc=`ls -l /lib/libc.so.6 | awk '{print $NF}'` | |
56 | libc=/lib/$libc | |
57 | fi | |
58 | ||
232e078e AD |
59 | # Configure may fail to find lstat() since it's a static/inline |
60 | # function in <sys/stat.h>. | |
61 | d_lstat=define | |
1aef975c | 62 | |
f443a56e | 63 | # The system malloc() is about as fast and as frugal as perl's. |
c3404dc3 AD |
64 | # Since the system malloc() has been the default since at least |
65 | # 5.001, we might as well leave it that way. --AD 10 Jan 2002 | |
c07a80fd | 66 | case "$usemymalloc" in |
67 | '') usemymalloc='n' ;; | |
68 | esac | |
1aef975c AD |
69 | |
70 | case "$optimize" in | |
eb782340 JH |
71 | '') # If we have modern enough gcc and well-supported enough CPU, |
72 | # crank up the optimization level. | |
73 | case "`${cc:-gcc} -v 2>&1`" in | |
bb010532 | 74 | *"gcc version 2.95"*|*"gcc version 3."*) |
eb782340 JH |
75 | case "`arch 2>&1`" in |
76 | i?86|ppc) optimize='-O3' ;; | |
77 | esac | |
78 | ;; | |
79 | esac | |
80 | case "$optimize" in | |
81 | '') optimize='-O2' ;; | |
82 | esac | |
83 | ;; | |
1aef975c AD |
84 | esac |
85 | ||
232e078e AD |
86 | # Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com> |
87 | # for this test. | |
88 | cat >try.c <<'EOM' | |
89 | /* Test for whether ELF binaries are produced */ | |
90 | #include <fcntl.h> | |
91 | #include <stdlib.h> | |
92 | main() { | |
93 | char buffer[4]; | |
94 | int i=open("a.out",O_RDONLY); | |
95 | if(i==-1) | |
96 | exit(1); /* fail */ | |
97 | if(read(i,&buffer[0],4)<4) | |
98 | exit(1); /* fail */ | |
99 | if(buffer[0] != 127 || buffer[1] != 'E' || | |
100 | buffer[2] != 'L' || buffer[3] != 'F') | |
101 | exit(1); /* fail */ | |
102 | exit(0); /* succeed (yes, it's ELF) */ | |
103 | } | |
104 | EOM | |
5440bc8e | 105 | if ${cc:-gcc} try.c >/dev/null 2>&1 && $run ./a.out; then |
ef0c9946 | 106 | cat <<'EOM' >&4 |
232e078e AD |
107 | |
108 | You appear to have ELF support. I'll try to use it for dynamic loading. | |
ef0c9946 | 109 | If dynamic loading doesn't work, read hints/linux.sh for further information. |
232e078e | 110 | EOM |
ef0c9946 | 111 | |
232e078e | 112 | else |
ef0c9946 | 113 | cat <<'EOM' >&4 |
16d20bd9 AD |
114 | |
115 | You don't have an ELF gcc. I will use dld if possible. If you are | |
116 | using a version of DLD earlier than 3.2.6, or don't have it at all, you | |
117 | should probably upgrade. If you are forced to use 3.2.4, you should | |
c2960299 AD |
118 | uncomment a couple of lines in hints/linux.sh and restart Configure so |
119 | that shared libraries will be disallowed. | |
16d20bd9 AD |
120 | |
121 | EOM | |
232e078e | 122 | lddlflags="-r $lddlflags" |
5d94fbed AD |
123 | # These empty values are so that Configure doesn't put in the |
124 | # Linux ELF values. | |
125 | ccdlflags=' ' | |
126 | cccdlflags=' ' | |
c07a80fd | 127 | ccflags="-DOVR_DBL_DIG=14 $ccflags" |
1aef975c AD |
128 | so='sa' |
129 | dlext='o' | |
a5f75d66 | 130 | nm_so_opt=' ' |
1aef975c AD |
131 | ## If you are using DLD 3.2.4 which does not support shared libs, |
132 | ## uncomment the next two lines: | |
133 | #ldflags="-static" | |
134 | #so='none' | |
ef0c9946 | 135 | |
136 | # In addition, on some systems there is a problem with perl and NDBM | |
f443a56e JH |
137 | # which causes AnyDBM and NDBM_File to lock up. This is evidenced |
138 | # in the tests as AnyDBM just freezing. Apparently, this only | |
ef0c9946 | 139 | # happens on a.out systems, so we disable NDBM for all a.out linux |
140 | # systems. If someone can suggest a more robust test | |
141 | # that would be appreciated. | |
142 | # | |
143 | # More info: | |
144 | # Date: Wed, 7 Feb 1996 03:21:04 +0900 | |
145 | # From: Jeffrey Friedl <jfriedl@nff.ncl.omron.co.jp> | |
146 | # | |
147 | # I tried compiling with DBM support and sure enough things locked up | |
148 | # just as advertised. Checking into it, I found that the lockup was | |
149 | # during the call to dbm_open. Not *in* dbm_open -- but between the call | |
150 | # to and the jump into. | |
f443a56e | 151 | # |
ef0c9946 | 152 | # To make a long story short, making sure that the *.a and *.sa pairs of |
153 | # /usr/lib/lib{m,db,gdbm}.{a,sa} | |
154 | # were perfectly in sync took care of it. | |
155 | # | |
156 | # This will generate a harmless Whoa There! message | |
157 | case "$d_dbm_open" in | |
158 | '') cat <<'EOM' >&4 | |
159 | ||
160 | Disabling ndbm. This will generate a Whoa There message in Configure. | |
161 | Read hints/linux.sh for further information. | |
162 | EOM | |
163 | # You can override this with Configure -Dd_dbm_open | |
164 | d_dbm_open=undef | |
165 | ;; | |
166 | esac | |
232e078e | 167 | fi |
a0d0e21e | 168 | |
c2960299 | 169 | rm -f try.c a.out |
16d20bd9 | 170 | |
e218ce4d | 171 | if /bin/sh -c exit; then |
284c50cc MDLR |
172 | echo '' |
173 | echo 'You appear to have a working bash. Good.' | |
c2960299 | 174 | else |
ef0c9946 | 175 | cat << 'EOM' >&4 |
a0d0e21e | 176 | |
ef0c9946 | 177 | *********************** Warning! ********************* |
178 | It would appear you have a defective bash shell installed. This is likely to | |
179 | give you a failure of op/exec test #5 during the test phase of the build, | |
180 | Upgrading to a recent version (1.14.4 or later) should fix the problem. | |
181 | ****************************************************** | |
a0d0e21e | 182 | EOM |
c2960299 AD |
183 | |
184 | fi | |
16d20bd9 | 185 | |
284c50cc MDLR |
186 | # On SPARClinux, |
187 | # The following csh consistently coredumped in the test directory | |
188 | # "/home/mikedlr/perl5.003_94/t", though not most other directories. | |
189 | ||
190 | #Name : csh Distribution: Red Hat Linux (Rembrandt) | |
191 | #Version : 5.2.6 Vendor: Red Hat Software | |
192 | #Release : 3 Build Date: Fri May 24 19:42:14 1996 | |
193 | #Install date: Thu Jul 11 16:20:14 1996 Build Host: itchy.redhat.com | |
194 | #Group : Shells Source RPM: csh-5.2.6-3.src.rpm | |
195 | #Size : 184417 | |
196 | #Description : BSD c-shell | |
197 | ||
198 | # For this reason I suggest using the much bug-fixed tcsh for globbing | |
199 | # where available. | |
200 | ||
3d413b55 JH |
201 | # November 2001: That warning's pretty old now and probably not so |
202 | # relevant, especially since perl now uses File::Glob for globbing. | |
203 | # We'll still look for tcsh, but tone down the warnings. | |
204 | # Andy Dougherty, Nov. 6, 2001 | |
205 | if $csh -c 'echo $version' >/dev/null 2>&1; then | |
206 | echo 'Your csh is really tcsh. Good.' | |
207 | else | |
99cae59c | 208 | if xxx=`./UU/loc tcsh blurfl $pth`; $test -f "$xxx"; then |
46fc3d4c | 209 | echo "Found tcsh. I'll use it for globbing." |
210 | # We can't change Configure's setting of $csh, due to the way | |
211 | # Configure handles $d_portable and commands found in $loclist. | |
212 | # We can set the value for CSH in config.h by setting full_csh. | |
213 | full_csh=$xxx | |
3d413b55 JH |
214 | elif [ -f "$csh" ]; then |
215 | echo "Couldn't find tcsh. Csh-based globbing might be broken." | |
46fc3d4c | 216 | fi |
284c50cc | 217 | fi |
dc66995c | 218 | |
92526645 CN |
219 | # Shimpei Yamashita <shimpei@socrates.patnet.caltech.edu> |
220 | # Message-Id: <33EF1634.B36B6500@pobox.com> | |
f443a56e | 221 | # |
17ff8a05 JH |
222 | # The DR2 of MkLinux (osname=linux,archname=ppc-linux) may need |
223 | # special flags passed in order for dynamic loading to work. | |
92526645 | 224 | # instead of the recommended: |
17ff8a05 | 225 | # |
92526645 | 226 | # ccdlflags='-rdynamic' |
f443a56e | 227 | # |
92526645 CN |
228 | # it should be: |
229 | # ccdlflags='-Wl,-E' | |
17ff8a05 JH |
230 | # |
231 | # So if your DR2 (DR3 came out summer 1998, consider upgrading) | |
232 | # has problems with dynamic loading, uncomment the | |
233 | # following three lines, make distclean, and re-Configure: | |
234 | #case "`uname -r | sed 's/^[0-9.-]*//'``arch`" in | |
235 | #'osfmach3ppc') ccdlflags='-Wl,-E' ;; | |
236 | #esac | |
92526645 | 237 | |
7cd1f58a BJ |
238 | case "`uname -r`" in |
239 | sparc-linux) | |
240 | case "$cccdlflags" in | |
241 | *-fpic*) cccdlflags="`echo $cccdlflags|sed 's/-fpic/-fPIC/'`" ;; | |
242 | *) cccdlflags="$cccdlflags -fPIC" ;; | |
243 | esac | |
244 | ;; | |
245 | esac | |
246 | ||
f443a56e JH |
247 | # SuSE8.2 has /usr/lib/libndbm* which are ld scripts rather than |
248 | # true libraries. The scripts cause binding against static | |
249 | # version of -lgdbm which is a bad idea. So if we have 'nm' | |
250 | # make sure it can read the file | |
251 | # NI-S 2003/08/07 | |
252 | if [ -r /usr/lib/libndbm.so -a -x /usr/bin/nm ] ; then | |
253 | if /usr/bin/nm /usr/lib/libndbm.so >/dev/null 2>&1 ; then | |
254 | echo 'Your shared -lndbm seems to be a real library.' | |
255 | else | |
256 | echo 'Your shared -lndbm is not a real library.' | |
257 | set `echo X "$libswanted "| sed -e 's/ ndbm / /'` | |
258 | shift | |
259 | libswanted="$*" | |
260 | fi | |
261 | fi | |
262 | ||
263 | ||
264 | # This script UU/usethreads.cbu will get 'called-back' by Configure | |
104d25b7 JH |
265 | # after it has prompted the user for whether to use threads. |
266 | cat > UU/usethreads.cbu <<'EOCBU' | |
267 | case "$usethreads" in | |
268 | $define|true|[yY]*) | |
4d76a344 | 269 | ccflags="-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS $ccflags" |
104d25b7 JH |
270 | set `echo X "$libswanted "| sed -e 's/ c / pthread c /'` |
271 | shift | |
272 | libswanted="$*" | |
47b8d1e2 | 273 | |
a48ec845 JH |
274 | # Somehow at least in Debian 2.2 these manage to escape |
275 | # the #define forest of <features.h> and <time.h> so that | |
c95a4480 JH |
276 | # the hasproto macro of Configure doesn't see these protos, |
277 | # even with the -D_GNU_SOURCE. | |
47b8d1e2 | 278 | |
a48ec845 | 279 | d_asctime_r_proto="$define" |
47b8d1e2 | 280 | d_crypt_r_proto="$define" |
a48ec845 JH |
281 | d_ctime_r_proto="$define" |
282 | d_gmtime_r_proto="$define" | |
283 | d_localtime_r_proto="$define" | |
01b53dac | 284 | d_random_r_proto="$define" |
47b8d1e2 | 285 | |
104d25b7 JH |
286 | ;; |
287 | esac | |
288 | EOCBU | |
7f2eea8e GS |
289 | |
290 | cat > UU/uselargefiles.cbu <<'EOCBU' | |
f443a56e | 291 | # This script UU/uselargefiles.cbu will get 'called-back' by Configure |
7f2eea8e GS |
292 | # after it has prompted the user for whether to use large files. |
293 | case "$uselargefiles" in | |
294 | ''|$define|true|[yY]*) | |
9422c00b | 295 | # Keep this in the left margin. |
45c9e83b | 296 | ccflags_uselargefiles="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" |
9422c00b | 297 | |
45c9e83b | 298 | ccflags="$ccflags $ccflags_uselargefiles" |
7f2eea8e GS |
299 | ;; |
300 | esac | |
301 | EOCBU |