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 |
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 |
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12 | |
c3404dc3 |
13 | # Updated Thu May 30 10:50:22 EDT 1996 by <doughera@lafayette.edu> |
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14 | |
15 | # Updated Fri Jun 21 11:07:54 EDT 1996 |
16 | # NDBM support for ELF renabled by <kjahds@kjahds.com> |
232e078e |
17 | |
f3db1d4d |
18 | # No version of Linux supports setuid scripts. |
19 | d_suidsafe='undef' |
f3db1d4d |
20 | |
1cfa4ec7 |
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. |
9c12f1e5 |
35 | |
36 | # SuSE Linux can be used as cross-compilation host for Cray XT4 Catamount/Qk. |
37 | if test -d /opt/xt-pe |
38 | then |
39 | case "`cc -V 2>&1`" in |
40 | *catamount*) . hints/catamount.sh; return ;; |
41 | esac |
42 | fi |
43 | |
1cfa4ec7 |
44 | # Some operating systems (e.g., Solaris 2.6) will link to a versioned shared |
45 | # library implicitly. For example, on Solaris, `ld foo.o -lgdbm' will find an |
46 | # appropriate version of libgdbm, if one is available; Linux, however, doesn't |
47 | # do the implicit mapping. |
48 | ignore_versioned_solibs='y' |
49 | |
2d1d6bf6 |
50 | # BSD compatibility library no longer needed |
51 | # 'kaffe' has a /usr/lib/libnet.so which is not at all relevant for perl. |
52 | # bind causes issues with several reentrant functions |
53 | set `echo X "$libswanted "| sed -e 's/ bsd / /' -e 's/ net / /' -e 's/ bind / /'` |
4bf4dbb3 |
54 | shift |
55 | libswanted="$*" |
1fc4cb55 |
56 | |
a33f2d9f |
57 | # Debian 4.0 puts ndbm in the -lgdbm_compat library. |
58 | libswanted="$libswanted gdbm_compat" |
59 | |
a4ea3e34 |
60 | # If you have glibc, then report the version for ./myconfig bug reporting. |
61 | # (Configure doesn't need to know the specific version since it just uses |
62 | # gcc to load the library for all tests.) |
f443a56e |
63 | # We don't use __GLIBC__ and __GLIBC_MINOR__ because they |
a4ea3e34 |
64 | # are insufficiently precise to distinguish things like |
65 | # libc-2.0.6 and libc-2.0.7. |
66 | if test -L /lib/libc.so.6; then |
67 | libc=`ls -l /lib/libc.so.6 | awk '{print $NF}'` |
68 | libc=/lib/$libc |
69 | fi |
70 | |
232e078e |
71 | # Configure may fail to find lstat() since it's a static/inline |
72 | # function in <sys/stat.h>. |
73 | d_lstat=define |
1aef975c |
74 | |
da0b61dd |
75 | # malloc wrap works |
76 | case "$usemallocwrap" in |
77 | '') usemallocwrap='define' ;; |
78 | esac |
79 | |
f443a56e |
80 | # The system malloc() is about as fast and as frugal as perl's. |
c3404dc3 |
81 | # Since the system malloc() has been the default since at least |
82 | # 5.001, we might as well leave it that way. --AD 10 Jan 2002 |
c07a80fd |
83 | case "$usemymalloc" in |
84 | '') usemymalloc='n' ;; |
85 | esac |
1aef975c |
86 | |
06d57135 |
87 | # Check if we're about to use Intel's ICC compiler |
88 | case "`${cc:-cc} -V 2>&1`" in |
87d05bbe |
89 | *"Intel(R) C++ Compiler"*|*"Intel(R) C Compiler"*) |
06d57135 |
90 | # This is needed for Configure's prototype checks to work correctly |
383f9357 |
91 | # The -mp flag is needed to pass various floating point related tests |
6ae709ad |
92 | # The -no-gcc flag is needed otherwise, icc pretends (poorly) to be gcc |
383f9357 |
93 | ccflags="-we147 -mp -no-gcc $ccflags" |
06d57135 |
94 | # If we're using ICC, we usually want the best performance |
95 | case "$optimize" in |
96 | '') optimize='-O3' ;; |
97 | esac |
98 | ;; |
6452e86c |
99 | *"Sun C"*) |
100 | optimize='-xO2' |
101 | cccdlflags='-KPIC' |
102 | lddlflags='-G -Bdynamic' |
2f7602ba |
103 | # Sun C doesn't support gcc attributes, but, in many cases, doesn't |
104 | # complain either. Not all cases, though. |
105 | d_attribute_format='undef' |
106 | d_attribute_malloc='undef' |
107 | d_attribute_nonnull='undef' |
108 | d_attribute_noreturn='undef' |
109 | d_attribute_pure='undef' |
110 | d_attribute_unused='undef' |
111 | d_attribute_warn_unused_result='undef' |
6452e86c |
112 | ;; |
06d57135 |
113 | esac |
114 | |
1aef975c |
115 | case "$optimize" in |
051e4fe1 |
116 | # use -O2 by default ; -O3 doesn't seem to bring significant benefits with gcc |
be92ff21 |
117 | '') |
118 | optimize='-O2' |
119 | case "`uname -m`" in |
120 | ppc*) |
121 | # on ppc, it seems that gcc (at least gcc 3.3.2) isn't happy |
f88ad257 |
122 | # with -O2 ; so downgrade to -O1. |
be92ff21 |
123 | optimize='-O1' |
124 | ;; |
f88ad257 |
125 | ia64*) |
126 | # This architecture has had various problems with gcc's |
127 | # in the 3.2, 3.3, and 3.4 releases when optimized to -O2. See |
128 | # RT #37156 for a discussion of the problem. |
129 | case "`${cc:-gcc} -v 2>&1`" in |
130 | *"version 3.2"*|*"version 3.3"*|*"version 3.4"*) |
131 | ccflags="-fno-delete-null-pointer-checks $ccflags" |
132 | ;; |
133 | esac |
134 | ;; |
be92ff21 |
135 | esac |
136 | ;; |
1aef975c |
137 | esac |
138 | |
232e078e |
139 | # Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com> |
140 | # for this test. |
141 | cat >try.c <<'EOM' |
142 | /* Test for whether ELF binaries are produced */ |
143 | #include <fcntl.h> |
144 | #include <stdlib.h> |
b1e55cab |
145 | #include <unistd.h> |
232e078e |
146 | main() { |
147 | char buffer[4]; |
148 | int i=open("a.out",O_RDONLY); |
149 | if(i==-1) |
150 | exit(1); /* fail */ |
151 | if(read(i,&buffer[0],4)<4) |
152 | exit(1); /* fail */ |
153 | if(buffer[0] != 127 || buffer[1] != 'E' || |
154 | buffer[2] != 'L' || buffer[3] != 'F') |
155 | exit(1); /* fail */ |
156 | exit(0); /* succeed (yes, it's ELF) */ |
157 | } |
158 | EOM |
5440bc8e |
159 | if ${cc:-gcc} try.c >/dev/null 2>&1 && $run ./a.out; then |
ef0c9946 |
160 | cat <<'EOM' >&4 |
232e078e |
161 | |
162 | You appear to have ELF support. I'll try to use it for dynamic loading. |
ef0c9946 |
163 | If dynamic loading doesn't work, read hints/linux.sh for further information. |
232e078e |
164 | EOM |
ef0c9946 |
165 | |
232e078e |
166 | else |
ef0c9946 |
167 | cat <<'EOM' >&4 |
16d20bd9 |
168 | |
169 | You don't have an ELF gcc. I will use dld if possible. If you are |
170 | using a version of DLD earlier than 3.2.6, or don't have it at all, you |
171 | should probably upgrade. If you are forced to use 3.2.4, you should |
c2960299 |
172 | uncomment a couple of lines in hints/linux.sh and restart Configure so |
173 | that shared libraries will be disallowed. |
16d20bd9 |
174 | |
175 | EOM |
232e078e |
176 | lddlflags="-r $lddlflags" |
5d94fbed |
177 | # These empty values are so that Configure doesn't put in the |
178 | # Linux ELF values. |
179 | ccdlflags=' ' |
180 | cccdlflags=' ' |
c07a80fd |
181 | ccflags="-DOVR_DBL_DIG=14 $ccflags" |
1aef975c |
182 | so='sa' |
183 | dlext='o' |
a5f75d66 |
184 | nm_so_opt=' ' |
1aef975c |
185 | ## If you are using DLD 3.2.4 which does not support shared libs, |
186 | ## uncomment the next two lines: |
187 | #ldflags="-static" |
188 | #so='none' |
ef0c9946 |
189 | |
190 | # In addition, on some systems there is a problem with perl and NDBM |
f443a56e |
191 | # which causes AnyDBM and NDBM_File to lock up. This is evidenced |
192 | # in the tests as AnyDBM just freezing. Apparently, this only |
ef0c9946 |
193 | # happens on a.out systems, so we disable NDBM for all a.out linux |
194 | # systems. If someone can suggest a more robust test |
195 | # that would be appreciated. |
196 | # |
197 | # More info: |
198 | # Date: Wed, 7 Feb 1996 03:21:04 +0900 |
199 | # From: Jeffrey Friedl <jfriedl@nff.ncl.omron.co.jp> |
200 | # |
201 | # I tried compiling with DBM support and sure enough things locked up |
202 | # just as advertised. Checking into it, I found that the lockup was |
203 | # during the call to dbm_open. Not *in* dbm_open -- but between the call |
204 | # to and the jump into. |
f443a56e |
205 | # |
ef0c9946 |
206 | # To make a long story short, making sure that the *.a and *.sa pairs of |
207 | # /usr/lib/lib{m,db,gdbm}.{a,sa} |
208 | # were perfectly in sync took care of it. |
209 | # |
210 | # This will generate a harmless Whoa There! message |
211 | case "$d_dbm_open" in |
212 | '') cat <<'EOM' >&4 |
213 | |
214 | Disabling ndbm. This will generate a Whoa There message in Configure. |
215 | Read hints/linux.sh for further information. |
216 | EOM |
217 | # You can override this with Configure -Dd_dbm_open |
218 | d_dbm_open=undef |
219 | ;; |
220 | esac |
232e078e |
221 | fi |
a0d0e21e |
222 | |
c2960299 |
223 | rm -f try.c a.out |
16d20bd9 |
224 | |
e218ce4d |
225 | if /bin/sh -c exit; then |
284c50cc |
226 | echo '' |
227 | echo 'You appear to have a working bash. Good.' |
c2960299 |
228 | else |
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229 | cat << 'EOM' >&4 |
a0d0e21e |
230 | |
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231 | *********************** Warning! ********************* |
232 | It would appear you have a defective bash shell installed. This is likely to |
233 | give you a failure of op/exec test #5 during the test phase of the build, |
234 | Upgrading to a recent version (1.14.4 or later) should fix the problem. |
235 | ****************************************************** |
a0d0e21e |
236 | EOM |
c2960299 |
237 | |
238 | fi |
16d20bd9 |
239 | |
284c50cc |
240 | # On SPARClinux, |
241 | # The following csh consistently coredumped in the test directory |
242 | # "/home/mikedlr/perl5.003_94/t", though not most other directories. |
243 | |
244 | #Name : csh Distribution: Red Hat Linux (Rembrandt) |
245 | #Version : 5.2.6 Vendor: Red Hat Software |
246 | #Release : 3 Build Date: Fri May 24 19:42:14 1996 |
247 | #Install date: Thu Jul 11 16:20:14 1996 Build Host: itchy.redhat.com |
248 | #Group : Shells Source RPM: csh-5.2.6-3.src.rpm |
249 | #Size : 184417 |
250 | #Description : BSD c-shell |
251 | |
252 | # For this reason I suggest using the much bug-fixed tcsh for globbing |
253 | # where available. |
254 | |
3d413b55 |
255 | # November 2001: That warning's pretty old now and probably not so |
256 | # relevant, especially since perl now uses File::Glob for globbing. |
257 | # We'll still look for tcsh, but tone down the warnings. |
258 | # Andy Dougherty, Nov. 6, 2001 |
259 | if $csh -c 'echo $version' >/dev/null 2>&1; then |
260 | echo 'Your csh is really tcsh. Good.' |
261 | else |
99cae59c |
262 | if xxx=`./UU/loc tcsh blurfl $pth`; $test -f "$xxx"; then |
46fc3d4c |
263 | echo "Found tcsh. I'll use it for globbing." |
264 | # We can't change Configure's setting of $csh, due to the way |
265 | # Configure handles $d_portable and commands found in $loclist. |
266 | # We can set the value for CSH in config.h by setting full_csh. |
267 | full_csh=$xxx |
3d413b55 |
268 | elif [ -f "$csh" ]; then |
269 | echo "Couldn't find tcsh. Csh-based globbing might be broken." |
46fc3d4c |
270 | fi |
284c50cc |
271 | fi |
dc66995c |
272 | |
92526645 |
273 | # Shimpei Yamashita <shimpei@socrates.patnet.caltech.edu> |
274 | # Message-Id: <33EF1634.B36B6500@pobox.com> |
f443a56e |
275 | # |
17ff8a05 |
276 | # The DR2 of MkLinux (osname=linux,archname=ppc-linux) may need |
277 | # special flags passed in order for dynamic loading to work. |
92526645 |
278 | # instead of the recommended: |
17ff8a05 |
279 | # |
92526645 |
280 | # ccdlflags='-rdynamic' |
f443a56e |
281 | # |
92526645 |
282 | # it should be: |
283 | # ccdlflags='-Wl,-E' |
17ff8a05 |
284 | # |
285 | # So if your DR2 (DR3 came out summer 1998, consider upgrading) |
286 | # has problems with dynamic loading, uncomment the |
287 | # following three lines, make distclean, and re-Configure: |
288 | #case "`uname -r | sed 's/^[0-9.-]*//'``arch`" in |
289 | #'osfmach3ppc') ccdlflags='-Wl,-E' ;; |
290 | #esac |
92526645 |
291 | |
f6527d0e |
292 | case "`uname -m`" in |
293 | sparc*) |
7cd1f58a |
294 | case "$cccdlflags" in |
295 | *-fpic*) cccdlflags="`echo $cccdlflags|sed 's/-fpic/-fPIC/'`" ;; |
4cd66402 |
296 | *-fPIC*) ;; |
7cd1f58a |
297 | *) cccdlflags="$cccdlflags -fPIC" ;; |
298 | esac |
299 | ;; |
300 | esac |
301 | |
f443a56e |
302 | # SuSE8.2 has /usr/lib/libndbm* which are ld scripts rather than |
303 | # true libraries. The scripts cause binding against static |
304 | # version of -lgdbm which is a bad idea. So if we have 'nm' |
305 | # make sure it can read the file |
306 | # NI-S 2003/08/07 |
307 | if [ -r /usr/lib/libndbm.so -a -x /usr/bin/nm ] ; then |
308 | if /usr/bin/nm /usr/lib/libndbm.so >/dev/null 2>&1 ; then |
309 | echo 'Your shared -lndbm seems to be a real library.' |
310 | else |
311 | echo 'Your shared -lndbm is not a real library.' |
312 | set `echo X "$libswanted "| sed -e 's/ ndbm / /'` |
313 | shift |
314 | libswanted="$*" |
315 | fi |
316 | fi |
317 | |
318 | |
319 | # This script UU/usethreads.cbu will get 'called-back' by Configure |
104d25b7 |
320 | # after it has prompted the user for whether to use threads. |
321 | cat > UU/usethreads.cbu <<'EOCBU' |
bb47c233 |
322 | if getconf GNU_LIBPTHREAD_VERSION | grep NPTL >/dev/null 2>/dev/null |
323 | then |
324 | threadshavepids="" |
325 | else |
326 | threadshavepids="-DTHREADS_HAVE_PIDS" |
327 | fi |
104d25b7 |
328 | case "$usethreads" in |
329 | $define|true|[yY]*) |
bb47c233 |
330 | ccflags="-D_REENTRANT -D_GNU_SOURCE $threadshavepids $ccflags" |
5d3df70f |
331 | if echo $libswanted | grep -v pthread >/dev/null |
332 | then |
333 | set `echo X "$libswanted "| sed -e 's/ c / pthread c /'` |
334 | shift |
335 | libswanted="$*" |
336 | fi |
47b8d1e2 |
337 | |
a48ec845 |
338 | # Somehow at least in Debian 2.2 these manage to escape |
339 | # the #define forest of <features.h> and <time.h> so that |
c95a4480 |
340 | # the hasproto macro of Configure doesn't see these protos, |
341 | # even with the -D_GNU_SOURCE. |
47b8d1e2 |
342 | |
a48ec845 |
343 | d_asctime_r_proto="$define" |
47b8d1e2 |
344 | d_crypt_r_proto="$define" |
a48ec845 |
345 | d_ctime_r_proto="$define" |
346 | d_gmtime_r_proto="$define" |
347 | d_localtime_r_proto="$define" |
01b53dac |
348 | d_random_r_proto="$define" |
47b8d1e2 |
349 | |
104d25b7 |
350 | ;; |
351 | esac |
352 | EOCBU |
7f2eea8e |
353 | |
354 | cat > UU/uselargefiles.cbu <<'EOCBU' |
f443a56e |
355 | # This script UU/uselargefiles.cbu will get 'called-back' by Configure |
7f2eea8e |
356 | # after it has prompted the user for whether to use large files. |
357 | case "$uselargefiles" in |
358 | ''|$define|true|[yY]*) |
9422c00b |
359 | # Keep this in the left margin. |
45c9e83b |
360 | ccflags_uselargefiles="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" |
9422c00b |
361 | |
45c9e83b |
362 | ccflags="$ccflags $ccflags_uselargefiles" |
7f2eea8e |
363 | ;; |
364 | esac |
365 | EOCBU |
3fe280b7 |
366 | |
367 | # Purify fails to link Perl if a "-lc" is passed into its linker |
368 | # due to duplicate symbols. |
369 | case "$PURIFY" in |
370 | $define|true|[yY]*) |
371 | set `echo X "$libswanted "| sed -e 's/ c / /'` |
372 | shift |
373 | libswanted="$*" |
374 | ;; |
375 | esac |
b1e55cab |
376 | |
377 | # If we are using g++ we must use nm and force ourselves to use |
378 | # the /usr/lib/libc.a (resetting the libc below to an empty string |
379 | # makes Configure to look for the right one) because the symbol |
380 | # scanning tricks of Configure will crash and burn horribly. |
381 | case "$cc" in |
382 | *g++*) usenm=true |
383 | libc='' |
384 | ;; |
385 | esac |
386 | |
c3faea48 |
387 | # If using g++, the Configure scan for dlopen() and (especially) |
388 | # dlerror() might fail, easier just to forcibly hint them in. |
389 | case "$cc" in |
390 | *g++*) |
391 | d_dlopen='define' |
392 | d_dlerror='define' |
393 | ;; |
394 | esac |
5d3df70f |
395 | |
396 | # Under some circumstances libdb can get built in such a way as to |
397 | # need pthread explicitly linked. |
398 | |
399 | libdb_needs_pthread="N" |
400 | |
401 | if echo " $libswanted " | grep -v " pthread " >/dev/null |
402 | then |
403 | if echo " $libswanted " | grep " db " >/dev/null |
404 | then |
405 | for DBDIR in $glibpth |
406 | do |
407 | DBLIB="$DBDIR/libdb.so" |
408 | if [ -f $DBLIB ] |
409 | then |
410 | if nm -u $DBLIB | grep pthread >/dev/null |
411 | then |
412 | if ldd $DBLIB | grep pthread >/dev/null |
413 | then |
414 | libdb_needs_pthread="N" |
415 | else |
416 | libdb_needs_pthread="Y" |
417 | fi |
418 | fi |
419 | fi |
420 | done |
421 | fi |
422 | fi |
423 | |
424 | case "$libdb_needs_pthread" in |
425 | "Y") |
426 | libswanted="$libswanted pthread" |
427 | ;; |
428 | esac |