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 |
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 |
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 $ccflags" |
95960e9d |
94 | # Prevent relocation errors on 64bits arch |
95 | case "`uname -m`" in |
96 | *ia64*|*x86_64*) |
97 | cccdlflags='-fPIC' |
98 | ;; |
99 | esac |
06d57135 |
100 | # If we're using ICC, we usually want the best performance |
101 | case "$optimize" in |
102 | '') optimize='-O3' ;; |
103 | esac |
104 | ;; |
6452e86c |
105 | *"Sun C"*) |
395ff119 |
106 | test "$optimize" || optimize='-xO2' |
6452e86c |
107 | cccdlflags='-KPIC' |
108 | lddlflags='-G -Bdynamic' |
2f7602ba |
109 | # Sun C doesn't support gcc attributes, but, in many cases, doesn't |
110 | # complain either. Not all cases, though. |
111 | d_attribute_format='undef' |
112 | d_attribute_malloc='undef' |
113 | d_attribute_nonnull='undef' |
114 | d_attribute_noreturn='undef' |
115 | d_attribute_pure='undef' |
116 | d_attribute_unused='undef' |
117 | d_attribute_warn_unused_result='undef' |
6452e86c |
118 | ;; |
06d57135 |
119 | esac |
120 | |
1aef975c |
121 | case "$optimize" in |
051e4fe1 |
122 | # use -O2 by default ; -O3 doesn't seem to bring significant benefits with gcc |
be92ff21 |
123 | '') |
124 | optimize='-O2' |
125 | case "`uname -m`" in |
126 | ppc*) |
127 | # on ppc, it seems that gcc (at least gcc 3.3.2) isn't happy |
f88ad257 |
128 | # with -O2 ; so downgrade to -O1. |
be92ff21 |
129 | optimize='-O1' |
130 | ;; |
f88ad257 |
131 | ia64*) |
132 | # This architecture has had various problems with gcc's |
133 | # in the 3.2, 3.3, and 3.4 releases when optimized to -O2. See |
134 | # RT #37156 for a discussion of the problem. |
135 | case "`${cc:-gcc} -v 2>&1`" in |
136 | *"version 3.2"*|*"version 3.3"*|*"version 3.4"*) |
137 | ccflags="-fno-delete-null-pointer-checks $ccflags" |
138 | ;; |
139 | esac |
140 | ;; |
be92ff21 |
141 | esac |
142 | ;; |
1aef975c |
143 | esac |
144 | |
232e078e |
145 | # Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com> |
146 | # for this test. |
147 | cat >try.c <<'EOM' |
148 | /* Test for whether ELF binaries are produced */ |
149 | #include <fcntl.h> |
150 | #include <stdlib.h> |
b1e55cab |
151 | #include <unistd.h> |
232e078e |
152 | main() { |
153 | char buffer[4]; |
154 | int i=open("a.out",O_RDONLY); |
155 | if(i==-1) |
156 | exit(1); /* fail */ |
157 | if(read(i,&buffer[0],4)<4) |
158 | exit(1); /* fail */ |
159 | if(buffer[0] != 127 || buffer[1] != 'E' || |
160 | buffer[2] != 'L' || buffer[3] != 'F') |
161 | exit(1); /* fail */ |
162 | exit(0); /* succeed (yes, it's ELF) */ |
163 | } |
164 | EOM |
5440bc8e |
165 | if ${cc:-gcc} try.c >/dev/null 2>&1 && $run ./a.out; then |
ef0c9946 |
166 | cat <<'EOM' >&4 |
232e078e |
167 | |
168 | You appear to have ELF support. I'll try to use it for dynamic loading. |
ef0c9946 |
169 | If dynamic loading doesn't work, read hints/linux.sh for further information. |
232e078e |
170 | EOM |
ef0c9946 |
171 | |
232e078e |
172 | else |
ef0c9946 |
173 | cat <<'EOM' >&4 |
16d20bd9 |
174 | |
175 | You don't have an ELF gcc. I will use dld if possible. If you are |
176 | using a version of DLD earlier than 3.2.6, or don't have it at all, you |
177 | should probably upgrade. If you are forced to use 3.2.4, you should |
c2960299 |
178 | uncomment a couple of lines in hints/linux.sh and restart Configure so |
179 | that shared libraries will be disallowed. |
16d20bd9 |
180 | |
181 | EOM |
232e078e |
182 | lddlflags="-r $lddlflags" |
5d94fbed |
183 | # These empty values are so that Configure doesn't put in the |
184 | # Linux ELF values. |
185 | ccdlflags=' ' |
186 | cccdlflags=' ' |
c07a80fd |
187 | ccflags="-DOVR_DBL_DIG=14 $ccflags" |
1aef975c |
188 | so='sa' |
189 | dlext='o' |
a5f75d66 |
190 | nm_so_opt=' ' |
1aef975c |
191 | ## If you are using DLD 3.2.4 which does not support shared libs, |
192 | ## uncomment the next two lines: |
193 | #ldflags="-static" |
194 | #so='none' |
ef0c9946 |
195 | |
196 | # In addition, on some systems there is a problem with perl and NDBM |
f443a56e |
197 | # which causes AnyDBM and NDBM_File to lock up. This is evidenced |
198 | # in the tests as AnyDBM just freezing. Apparently, this only |
ef0c9946 |
199 | # happens on a.out systems, so we disable NDBM for all a.out linux |
200 | # systems. If someone can suggest a more robust test |
201 | # that would be appreciated. |
202 | # |
203 | # More info: |
204 | # Date: Wed, 7 Feb 1996 03:21:04 +0900 |
205 | # From: Jeffrey Friedl <jfriedl@nff.ncl.omron.co.jp> |
206 | # |
207 | # I tried compiling with DBM support and sure enough things locked up |
208 | # just as advertised. Checking into it, I found that the lockup was |
209 | # during the call to dbm_open. Not *in* dbm_open -- but between the call |
210 | # to and the jump into. |
f443a56e |
211 | # |
ef0c9946 |
212 | # To make a long story short, making sure that the *.a and *.sa pairs of |
213 | # /usr/lib/lib{m,db,gdbm}.{a,sa} |
214 | # were perfectly in sync took care of it. |
215 | # |
216 | # This will generate a harmless Whoa There! message |
217 | case "$d_dbm_open" in |
218 | '') cat <<'EOM' >&4 |
219 | |
220 | Disabling ndbm. This will generate a Whoa There message in Configure. |
221 | Read hints/linux.sh for further information. |
222 | EOM |
223 | # You can override this with Configure -Dd_dbm_open |
224 | d_dbm_open=undef |
225 | ;; |
226 | esac |
232e078e |
227 | fi |
a0d0e21e |
228 | |
c2960299 |
229 | rm -f try.c a.out |
16d20bd9 |
230 | |
e218ce4d |
231 | if /bin/sh -c exit; then |
284c50cc |
232 | echo '' |
233 | echo 'You appear to have a working bash. Good.' |
c2960299 |
234 | else |
ef0c9946 |
235 | cat << 'EOM' >&4 |
a0d0e21e |
236 | |
ef0c9946 |
237 | *********************** Warning! ********************* |
238 | It would appear you have a defective bash shell installed. This is likely to |
239 | give you a failure of op/exec test #5 during the test phase of the build, |
240 | Upgrading to a recent version (1.14.4 or later) should fix the problem. |
241 | ****************************************************** |
a0d0e21e |
242 | EOM |
c2960299 |
243 | |
244 | fi |
16d20bd9 |
245 | |
284c50cc |
246 | # On SPARClinux, |
247 | # The following csh consistently coredumped in the test directory |
248 | # "/home/mikedlr/perl5.003_94/t", though not most other directories. |
249 | |
250 | #Name : csh Distribution: Red Hat Linux (Rembrandt) |
251 | #Version : 5.2.6 Vendor: Red Hat Software |
252 | #Release : 3 Build Date: Fri May 24 19:42:14 1996 |
253 | #Install date: Thu Jul 11 16:20:14 1996 Build Host: itchy.redhat.com |
254 | #Group : Shells Source RPM: csh-5.2.6-3.src.rpm |
255 | #Size : 184417 |
256 | #Description : BSD c-shell |
257 | |
258 | # For this reason I suggest using the much bug-fixed tcsh for globbing |
259 | # where available. |
260 | |
3d413b55 |
261 | # November 2001: That warning's pretty old now and probably not so |
262 | # relevant, especially since perl now uses File::Glob for globbing. |
263 | # We'll still look for tcsh, but tone down the warnings. |
264 | # Andy Dougherty, Nov. 6, 2001 |
265 | if $csh -c 'echo $version' >/dev/null 2>&1; then |
266 | echo 'Your csh is really tcsh. Good.' |
267 | else |
99cae59c |
268 | if xxx=`./UU/loc tcsh blurfl $pth`; $test -f "$xxx"; then |
46fc3d4c |
269 | echo "Found tcsh. I'll use it for globbing." |
270 | # We can't change Configure's setting of $csh, due to the way |
271 | # Configure handles $d_portable and commands found in $loclist. |
272 | # We can set the value for CSH in config.h by setting full_csh. |
273 | full_csh=$xxx |
3d413b55 |
274 | elif [ -f "$csh" ]; then |
275 | echo "Couldn't find tcsh. Csh-based globbing might be broken." |
46fc3d4c |
276 | fi |
284c50cc |
277 | fi |
dc66995c |
278 | |
92526645 |
279 | # Shimpei Yamashita <shimpei@socrates.patnet.caltech.edu> |
280 | # Message-Id: <33EF1634.B36B6500@pobox.com> |
f443a56e |
281 | # |
17ff8a05 |
282 | # The DR2 of MkLinux (osname=linux,archname=ppc-linux) may need |
283 | # special flags passed in order for dynamic loading to work. |
92526645 |
284 | # instead of the recommended: |
17ff8a05 |
285 | # |
92526645 |
286 | # ccdlflags='-rdynamic' |
f443a56e |
287 | # |
92526645 |
288 | # it should be: |
289 | # ccdlflags='-Wl,-E' |
17ff8a05 |
290 | # |
291 | # So if your DR2 (DR3 came out summer 1998, consider upgrading) |
292 | # has problems with dynamic loading, uncomment the |
293 | # following three lines, make distclean, and re-Configure: |
294 | #case "`uname -r | sed 's/^[0-9.-]*//'``arch`" in |
295 | #'osfmach3ppc') ccdlflags='-Wl,-E' ;; |
296 | #esac |
92526645 |
297 | |
f6527d0e |
298 | case "`uname -m`" in |
299 | sparc*) |
7cd1f58a |
300 | case "$cccdlflags" in |
301 | *-fpic*) cccdlflags="`echo $cccdlflags|sed 's/-fpic/-fPIC/'`" ;; |
4cd66402 |
302 | *-fPIC*) ;; |
7cd1f58a |
303 | *) cccdlflags="$cccdlflags -fPIC" ;; |
304 | esac |
305 | ;; |
306 | esac |
307 | |
f443a56e |
308 | # SuSE8.2 has /usr/lib/libndbm* which are ld scripts rather than |
309 | # true libraries. The scripts cause binding against static |
310 | # version of -lgdbm which is a bad idea. So if we have 'nm' |
311 | # make sure it can read the file |
312 | # NI-S 2003/08/07 |
313 | if [ -r /usr/lib/libndbm.so -a -x /usr/bin/nm ] ; then |
314 | if /usr/bin/nm /usr/lib/libndbm.so >/dev/null 2>&1 ; then |
315 | echo 'Your shared -lndbm seems to be a real library.' |
316 | else |
317 | echo 'Your shared -lndbm is not a real library.' |
318 | set `echo X "$libswanted "| sed -e 's/ ndbm / /'` |
319 | shift |
320 | libswanted="$*" |
321 | fi |
322 | fi |
323 | |
324 | |
325 | # This script UU/usethreads.cbu will get 'called-back' by Configure |
104d25b7 |
326 | # after it has prompted the user for whether to use threads. |
327 | cat > UU/usethreads.cbu <<'EOCBU' |
bb47c233 |
328 | if getconf GNU_LIBPTHREAD_VERSION | grep NPTL >/dev/null 2>/dev/null |
329 | then |
330 | threadshavepids="" |
331 | else |
332 | threadshavepids="-DTHREADS_HAVE_PIDS" |
333 | fi |
104d25b7 |
334 | case "$usethreads" in |
335 | $define|true|[yY]*) |
bb47c233 |
336 | ccflags="-D_REENTRANT -D_GNU_SOURCE $threadshavepids $ccflags" |
5d3df70f |
337 | if echo $libswanted | grep -v pthread >/dev/null |
338 | then |
339 | set `echo X "$libswanted "| sed -e 's/ c / pthread c /'` |
340 | shift |
341 | libswanted="$*" |
342 | fi |
47b8d1e2 |
343 | |
a48ec845 |
344 | # Somehow at least in Debian 2.2 these manage to escape |
345 | # the #define forest of <features.h> and <time.h> so that |
c95a4480 |
346 | # the hasproto macro of Configure doesn't see these protos, |
347 | # even with the -D_GNU_SOURCE. |
47b8d1e2 |
348 | |
a48ec845 |
349 | d_asctime_r_proto="$define" |
47b8d1e2 |
350 | d_crypt_r_proto="$define" |
a48ec845 |
351 | d_ctime_r_proto="$define" |
352 | d_gmtime_r_proto="$define" |
353 | d_localtime_r_proto="$define" |
01b53dac |
354 | d_random_r_proto="$define" |
47b8d1e2 |
355 | |
104d25b7 |
356 | ;; |
357 | esac |
358 | EOCBU |
7f2eea8e |
359 | |
360 | cat > UU/uselargefiles.cbu <<'EOCBU' |
f443a56e |
361 | # This script UU/uselargefiles.cbu will get 'called-back' by Configure |
7f2eea8e |
362 | # after it has prompted the user for whether to use large files. |
363 | case "$uselargefiles" in |
364 | ''|$define|true|[yY]*) |
9422c00b |
365 | # Keep this in the left margin. |
45c9e83b |
366 | ccflags_uselargefiles="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" |
9422c00b |
367 | |
45c9e83b |
368 | ccflags="$ccflags $ccflags_uselargefiles" |
7f2eea8e |
369 | ;; |
370 | esac |
371 | EOCBU |
3fe280b7 |
372 | |
373 | # Purify fails to link Perl if a "-lc" is passed into its linker |
374 | # due to duplicate symbols. |
375 | case "$PURIFY" in |
376 | $define|true|[yY]*) |
377 | set `echo X "$libswanted "| sed -e 's/ c / /'` |
378 | shift |
379 | libswanted="$*" |
380 | ;; |
381 | esac |
b1e55cab |
382 | |
383 | # If we are using g++ we must use nm and force ourselves to use |
384 | # the /usr/lib/libc.a (resetting the libc below to an empty string |
385 | # makes Configure to look for the right one) because the symbol |
386 | # scanning tricks of Configure will crash and burn horribly. |
387 | case "$cc" in |
388 | *g++*) usenm=true |
389 | libc='' |
390 | ;; |
391 | esac |
392 | |
c3faea48 |
393 | # If using g++, the Configure scan for dlopen() and (especially) |
394 | # dlerror() might fail, easier just to forcibly hint them in. |
395 | case "$cc" in |
396 | *g++*) |
397 | d_dlopen='define' |
398 | d_dlerror='define' |
399 | ;; |
400 | esac |
5d3df70f |
401 | |
402 | # Under some circumstances libdb can get built in such a way as to |
403 | # need pthread explicitly linked. |
404 | |
405 | libdb_needs_pthread="N" |
406 | |
407 | if echo " $libswanted " | grep -v " pthread " >/dev/null |
408 | then |
409 | if echo " $libswanted " | grep " db " >/dev/null |
410 | then |
411 | for DBDIR in $glibpth |
412 | do |
413 | DBLIB="$DBDIR/libdb.so" |
414 | if [ -f $DBLIB ] |
415 | then |
416 | if nm -u $DBLIB | grep pthread >/dev/null |
417 | then |
418 | if ldd $DBLIB | grep pthread >/dev/null |
419 | then |
420 | libdb_needs_pthread="N" |
421 | else |
422 | libdb_needs_pthread="Y" |
423 | fi |
424 | fi |
425 | fi |
426 | done |
427 | fi |
428 | fi |
429 | |
430 | case "$libdb_needs_pthread" in |
431 | "Y") |
432 | libswanted="$libswanted pthread" |
433 | ;; |
434 | esac |