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. | |
9c12f1e5 RGS |
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 GS |
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 SP |
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 AD |
57 | # Debian 4.0 puts ndbm in the -lgdbm_compat library. |
58 | libswanted="$libswanted gdbm_compat" | |
59 | ||
a4ea3e34 AD |
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 AD |
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 AD |
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 NC |
75 | # malloc wrap works |
76 | case "$usemallocwrap" in | |
77 | '') usemallocwrap='define' ;; | |
78 | esac | |
79 | ||
f443a56e | 80 | # The system malloc() is about as fast and as frugal as perl's. |
c3404dc3 AD |
81 | # Since the system malloc() has been the default since at least |
82 | # 5.001, we might as well leave it that way. --AD 10 Jan 2002 | |
c07a80fd | 83 | case "$usemymalloc" in |
84 | '') usemymalloc='n' ;; | |
85 | esac | |
1aef975c | 86 | |
06d57135 MHM |
87 | # Check if we're about to use Intel's ICC compiler |
88 | case "`${cc:-cc} -V 2>&1`" in | |
87d05bbe | 89 | *"Intel(R) C++ Compiler"*|*"Intel(R) C Compiler"*) |
77b33db6 TC |
90 | # record the version, formats: |
91 | # icc (ICC) 10.1 20080801 | |
92 | # icpc (ICC) 10.1 20080801 | |
93 | # followed by a copyright on the second line | |
94 | ccversion=`${cc:-cc} --version | sed -n -e 's/^icp\?c \((ICC) \)\?//p'` | |
06d57135 | 95 | # This is needed for Configure's prototype checks to work correctly |
383f9357 | 96 | # The -mp flag is needed to pass various floating point related tests |
6ae709ad | 97 | # The -no-gcc flag is needed otherwise, icc pretends (poorly) to be gcc |
383f9357 | 98 | ccflags="-we147 -mp -no-gcc $ccflags" |
95960e9d VP |
99 | # Prevent relocation errors on 64bits arch |
100 | case "`uname -m`" in | |
101 | *ia64*|*x86_64*) | |
102 | cccdlflags='-fPIC' | |
103 | ;; | |
104 | esac | |
06d57135 MHM |
105 | # If we're using ICC, we usually want the best performance |
106 | case "$optimize" in | |
107 | '') optimize='-O3' ;; | |
108 | esac | |
109 | ;; | |
7accc71d AD |
110 | *" Sun "*"C"*) |
111 | # Sun's C compiler, which might have a 'tag' name between | |
112 | # 'Sun' and the 'C': Examples: | |
113 | # cc: Sun C 5.9 Linux_i386 Patch 124871-01 2007/07/31 | |
114 | # cc: Sun Ceres C 5.10 Linux_i386 2008/07/10 | |
395ff119 | 115 | test "$optimize" || optimize='-xO2' |
6452e86c SP |
116 | cccdlflags='-KPIC' |
117 | lddlflags='-G -Bdynamic' | |
2f7602ba SP |
118 | # Sun C doesn't support gcc attributes, but, in many cases, doesn't |
119 | # complain either. Not all cases, though. | |
120 | d_attribute_format='undef' | |
121 | d_attribute_malloc='undef' | |
122 | d_attribute_nonnull='undef' | |
123 | d_attribute_noreturn='undef' | |
124 | d_attribute_pure='undef' | |
125 | d_attribute_unused='undef' | |
126 | d_attribute_warn_unused_result='undef' | |
6452e86c | 127 | ;; |
06d57135 MHM |
128 | esac |
129 | ||
1aef975c | 130 | case "$optimize" in |
051e4fe1 | 131 | # use -O2 by default ; -O3 doesn't seem to bring significant benefits with gcc |
be92ff21 RGS |
132 | '') |
133 | optimize='-O2' | |
134 | case "`uname -m`" in | |
135 | ppc*) | |
136 | # on ppc, it seems that gcc (at least gcc 3.3.2) isn't happy | |
f88ad257 | 137 | # with -O2 ; so downgrade to -O1. |
be92ff21 RGS |
138 | optimize='-O1' |
139 | ;; | |
f88ad257 SP |
140 | ia64*) |
141 | # This architecture has had various problems with gcc's | |
142 | # in the 3.2, 3.3, and 3.4 releases when optimized to -O2. See | |
143 | # RT #37156 for a discussion of the problem. | |
144 | case "`${cc:-gcc} -v 2>&1`" in | |
145 | *"version 3.2"*|*"version 3.3"*|*"version 3.4"*) | |
146 | ccflags="-fno-delete-null-pointer-checks $ccflags" | |
147 | ;; | |
148 | esac | |
149 | ;; | |
be92ff21 RGS |
150 | esac |
151 | ;; | |
1aef975c AD |
152 | esac |
153 | ||
232e078e AD |
154 | # Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com> |
155 | # for this test. | |
156 | cat >try.c <<'EOM' | |
157 | /* Test for whether ELF binaries are produced */ | |
158 | #include <fcntl.h> | |
159 | #include <stdlib.h> | |
b1e55cab | 160 | #include <unistd.h> |
232e078e AD |
161 | main() { |
162 | char buffer[4]; | |
163 | int i=open("a.out",O_RDONLY); | |
164 | if(i==-1) | |
165 | exit(1); /* fail */ | |
166 | if(read(i,&buffer[0],4)<4) | |
167 | exit(1); /* fail */ | |
168 | if(buffer[0] != 127 || buffer[1] != 'E' || | |
169 | buffer[2] != 'L' || buffer[3] != 'F') | |
170 | exit(1); /* fail */ | |
171 | exit(0); /* succeed (yes, it's ELF) */ | |
172 | } | |
173 | EOM | |
5440bc8e | 174 | if ${cc:-gcc} try.c >/dev/null 2>&1 && $run ./a.out; then |
ef0c9946 | 175 | cat <<'EOM' >&4 |
232e078e AD |
176 | |
177 | You appear to have ELF support. I'll try to use it for dynamic loading. | |
ef0c9946 | 178 | If dynamic loading doesn't work, read hints/linux.sh for further information. |
232e078e | 179 | EOM |
ef0c9946 | 180 | |
232e078e | 181 | else |
ef0c9946 | 182 | cat <<'EOM' >&4 |
16d20bd9 AD |
183 | |
184 | You don't have an ELF gcc. I will use dld if possible. If you are | |
185 | using a version of DLD earlier than 3.2.6, or don't have it at all, you | |
186 | should probably upgrade. If you are forced to use 3.2.4, you should | |
c2960299 AD |
187 | uncomment a couple of lines in hints/linux.sh and restart Configure so |
188 | that shared libraries will be disallowed. | |
16d20bd9 AD |
189 | |
190 | EOM | |
232e078e | 191 | lddlflags="-r $lddlflags" |
5d94fbed AD |
192 | # These empty values are so that Configure doesn't put in the |
193 | # Linux ELF values. | |
194 | ccdlflags=' ' | |
195 | cccdlflags=' ' | |
c07a80fd | 196 | ccflags="-DOVR_DBL_DIG=14 $ccflags" |
1aef975c AD |
197 | so='sa' |
198 | dlext='o' | |
a5f75d66 | 199 | nm_so_opt=' ' |
1aef975c AD |
200 | ## If you are using DLD 3.2.4 which does not support shared libs, |
201 | ## uncomment the next two lines: | |
202 | #ldflags="-static" | |
203 | #so='none' | |
ef0c9946 | 204 | |
205 | # In addition, on some systems there is a problem with perl and NDBM | |
f443a56e JH |
206 | # which causes AnyDBM and NDBM_File to lock up. This is evidenced |
207 | # in the tests as AnyDBM just freezing. Apparently, this only | |
ef0c9946 | 208 | # happens on a.out systems, so we disable NDBM for all a.out linux |
209 | # systems. If someone can suggest a more robust test | |
210 | # that would be appreciated. | |
211 | # | |
212 | # More info: | |
213 | # Date: Wed, 7 Feb 1996 03:21:04 +0900 | |
214 | # From: Jeffrey Friedl <jfriedl@nff.ncl.omron.co.jp> | |
215 | # | |
216 | # I tried compiling with DBM support and sure enough things locked up | |
217 | # just as advertised. Checking into it, I found that the lockup was | |
218 | # during the call to dbm_open. Not *in* dbm_open -- but between the call | |
219 | # to and the jump into. | |
f443a56e | 220 | # |
ef0c9946 | 221 | # To make a long story short, making sure that the *.a and *.sa pairs of |
222 | # /usr/lib/lib{m,db,gdbm}.{a,sa} | |
223 | # were perfectly in sync took care of it. | |
224 | # | |
225 | # This will generate a harmless Whoa There! message | |
226 | case "$d_dbm_open" in | |
227 | '') cat <<'EOM' >&4 | |
228 | ||
229 | Disabling ndbm. This will generate a Whoa There message in Configure. | |
230 | Read hints/linux.sh for further information. | |
231 | EOM | |
232 | # You can override this with Configure -Dd_dbm_open | |
233 | d_dbm_open=undef | |
234 | ;; | |
235 | esac | |
232e078e | 236 | fi |
a0d0e21e | 237 | |
c2960299 | 238 | rm -f try.c a.out |
16d20bd9 | 239 | |
e218ce4d | 240 | if /bin/sh -c exit; then |
284c50cc MDLR |
241 | echo '' |
242 | echo 'You appear to have a working bash. Good.' | |
c2960299 | 243 | else |
ef0c9946 | 244 | cat << 'EOM' >&4 |
a0d0e21e | 245 | |
ef0c9946 | 246 | *********************** Warning! ********************* |
247 | It would appear you have a defective bash shell installed. This is likely to | |
248 | give you a failure of op/exec test #5 during the test phase of the build, | |
249 | Upgrading to a recent version (1.14.4 or later) should fix the problem. | |
250 | ****************************************************** | |
a0d0e21e | 251 | EOM |
c2960299 AD |
252 | |
253 | fi | |
16d20bd9 | 254 | |
284c50cc MDLR |
255 | # On SPARClinux, |
256 | # The following csh consistently coredumped in the test directory | |
257 | # "/home/mikedlr/perl5.003_94/t", though not most other directories. | |
258 | ||
259 | #Name : csh Distribution: Red Hat Linux (Rembrandt) | |
260 | #Version : 5.2.6 Vendor: Red Hat Software | |
261 | #Release : 3 Build Date: Fri May 24 19:42:14 1996 | |
262 | #Install date: Thu Jul 11 16:20:14 1996 Build Host: itchy.redhat.com | |
263 | #Group : Shells Source RPM: csh-5.2.6-3.src.rpm | |
264 | #Size : 184417 | |
265 | #Description : BSD c-shell | |
266 | ||
267 | # For this reason I suggest using the much bug-fixed tcsh for globbing | |
268 | # where available. | |
269 | ||
3d413b55 JH |
270 | # November 2001: That warning's pretty old now and probably not so |
271 | # relevant, especially since perl now uses File::Glob for globbing. | |
272 | # We'll still look for tcsh, but tone down the warnings. | |
273 | # Andy Dougherty, Nov. 6, 2001 | |
274 | if $csh -c 'echo $version' >/dev/null 2>&1; then | |
275 | echo 'Your csh is really tcsh. Good.' | |
276 | else | |
99cae59c | 277 | if xxx=`./UU/loc tcsh blurfl $pth`; $test -f "$xxx"; then |
46fc3d4c | 278 | echo "Found tcsh. I'll use it for globbing." |
279 | # We can't change Configure's setting of $csh, due to the way | |
280 | # Configure handles $d_portable and commands found in $loclist. | |
281 | # We can set the value for CSH in config.h by setting full_csh. | |
282 | full_csh=$xxx | |
3d413b55 JH |
283 | elif [ -f "$csh" ]; then |
284 | echo "Couldn't find tcsh. Csh-based globbing might be broken." | |
46fc3d4c | 285 | fi |
284c50cc | 286 | fi |
dc66995c | 287 | |
92526645 CN |
288 | # Shimpei Yamashita <shimpei@socrates.patnet.caltech.edu> |
289 | # Message-Id: <33EF1634.B36B6500@pobox.com> | |
f443a56e | 290 | # |
17ff8a05 JH |
291 | # The DR2 of MkLinux (osname=linux,archname=ppc-linux) may need |
292 | # special flags passed in order for dynamic loading to work. | |
92526645 | 293 | # instead of the recommended: |
17ff8a05 | 294 | # |
92526645 | 295 | # ccdlflags='-rdynamic' |
f443a56e | 296 | # |
92526645 CN |
297 | # it should be: |
298 | # ccdlflags='-Wl,-E' | |
17ff8a05 JH |
299 | # |
300 | # So if your DR2 (DR3 came out summer 1998, consider upgrading) | |
301 | # has problems with dynamic loading, uncomment the | |
302 | # following three lines, make distclean, and re-Configure: | |
303 | #case "`uname -r | sed 's/^[0-9.-]*//'``arch`" in | |
304 | #'osfmach3ppc') ccdlflags='-Wl,-E' ;; | |
305 | #esac | |
92526645 | 306 | |
f6527d0e AD |
307 | case "`uname -m`" in |
308 | sparc*) | |
7cd1f58a BJ |
309 | case "$cccdlflags" in |
310 | *-fpic*) cccdlflags="`echo $cccdlflags|sed 's/-fpic/-fPIC/'`" ;; | |
4cd66402 | 311 | *-fPIC*) ;; |
7cd1f58a BJ |
312 | *) cccdlflags="$cccdlflags -fPIC" ;; |
313 | esac | |
314 | ;; | |
315 | esac | |
316 | ||
f443a56e JH |
317 | # SuSE8.2 has /usr/lib/libndbm* which are ld scripts rather than |
318 | # true libraries. The scripts cause binding against static | |
319 | # version of -lgdbm which is a bad idea. So if we have 'nm' | |
320 | # make sure it can read the file | |
321 | # NI-S 2003/08/07 | |
322 | if [ -r /usr/lib/libndbm.so -a -x /usr/bin/nm ] ; then | |
323 | if /usr/bin/nm /usr/lib/libndbm.so >/dev/null 2>&1 ; then | |
324 | echo 'Your shared -lndbm seems to be a real library.' | |
325 | else | |
326 | echo 'Your shared -lndbm is not a real library.' | |
327 | set `echo X "$libswanted "| sed -e 's/ ndbm / /'` | |
328 | shift | |
329 | libswanted="$*" | |
330 | fi | |
331 | fi | |
332 | ||
333 | ||
334 | # This script UU/usethreads.cbu will get 'called-back' by Configure | |
104d25b7 JH |
335 | # after it has prompted the user for whether to use threads. |
336 | cat > UU/usethreads.cbu <<'EOCBU' | |
bb47c233 RGS |
337 | if getconf GNU_LIBPTHREAD_VERSION | grep NPTL >/dev/null 2>/dev/null |
338 | then | |
339 | threadshavepids="" | |
340 | else | |
341 | threadshavepids="-DTHREADS_HAVE_PIDS" | |
342 | fi | |
104d25b7 JH |
343 | case "$usethreads" in |
344 | $define|true|[yY]*) | |
bb47c233 | 345 | ccflags="-D_REENTRANT -D_GNU_SOURCE $threadshavepids $ccflags" |
5d3df70f JS |
346 | if echo $libswanted | grep -v pthread >/dev/null |
347 | then | |
348 | set `echo X "$libswanted "| sed -e 's/ c / pthread c /'` | |
349 | shift | |
350 | libswanted="$*" | |
351 | fi | |
47b8d1e2 | 352 | |
a48ec845 JH |
353 | # Somehow at least in Debian 2.2 these manage to escape |
354 | # the #define forest of <features.h> and <time.h> so that | |
c95a4480 JH |
355 | # the hasproto macro of Configure doesn't see these protos, |
356 | # even with the -D_GNU_SOURCE. | |
47b8d1e2 | 357 | |
a48ec845 | 358 | d_asctime_r_proto="$define" |
47b8d1e2 | 359 | d_crypt_r_proto="$define" |
a48ec845 JH |
360 | d_ctime_r_proto="$define" |
361 | d_gmtime_r_proto="$define" | |
362 | d_localtime_r_proto="$define" | |
01b53dac | 363 | d_random_r_proto="$define" |
47b8d1e2 | 364 | |
104d25b7 JH |
365 | ;; |
366 | esac | |
367 | EOCBU | |
7f2eea8e GS |
368 | |
369 | cat > UU/uselargefiles.cbu <<'EOCBU' | |
f443a56e | 370 | # This script UU/uselargefiles.cbu will get 'called-back' by Configure |
7f2eea8e GS |
371 | # after it has prompted the user for whether to use large files. |
372 | case "$uselargefiles" in | |
373 | ''|$define|true|[yY]*) | |
9422c00b | 374 | # Keep this in the left margin. |
45c9e83b | 375 | ccflags_uselargefiles="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" |
9422c00b | 376 | |
45c9e83b | 377 | ccflags="$ccflags $ccflags_uselargefiles" |
7f2eea8e GS |
378 | ;; |
379 | esac | |
380 | EOCBU | |
3fe280b7 SP |
381 | |
382 | # Purify fails to link Perl if a "-lc" is passed into its linker | |
383 | # due to duplicate symbols. | |
384 | case "$PURIFY" in | |
385 | $define|true|[yY]*) | |
386 | set `echo X "$libswanted "| sed -e 's/ c / /'` | |
387 | shift | |
388 | libswanted="$*" | |
389 | ;; | |
390 | esac | |
b1e55cab JH |
391 | |
392 | # If we are using g++ we must use nm and force ourselves to use | |
393 | # the /usr/lib/libc.a (resetting the libc below to an empty string | |
394 | # makes Configure to look for the right one) because the symbol | |
395 | # scanning tricks of Configure will crash and burn horribly. | |
396 | case "$cc" in | |
397 | *g++*) usenm=true | |
398 | libc='' | |
399 | ;; | |
400 | esac | |
401 | ||
c3faea48 JH |
402 | # If using g++, the Configure scan for dlopen() and (especially) |
403 | # dlerror() might fail, easier just to forcibly hint them in. | |
404 | case "$cc" in | |
405 | *g++*) | |
406 | d_dlopen='define' | |
407 | d_dlerror='define' | |
408 | ;; | |
409 | esac | |
5d3df70f JS |
410 | |
411 | # Under some circumstances libdb can get built in such a way as to | |
412 | # need pthread explicitly linked. | |
413 | ||
414 | libdb_needs_pthread="N" | |
415 | ||
416 | if echo " $libswanted " | grep -v " pthread " >/dev/null | |
417 | then | |
418 | if echo " $libswanted " | grep " db " >/dev/null | |
419 | then | |
420 | for DBDIR in $glibpth | |
421 | do | |
422 | DBLIB="$DBDIR/libdb.so" | |
423 | if [ -f $DBLIB ] | |
424 | then | |
425 | if nm -u $DBLIB | grep pthread >/dev/null | |
426 | then | |
427 | if ldd $DBLIB | grep pthread >/dev/null | |
428 | then | |
429 | libdb_needs_pthread="N" | |
430 | else | |
431 | libdb_needs_pthread="Y" | |
432 | fi | |
433 | fi | |
434 | fi | |
435 | done | |
436 | fi | |
437 | fi | |
438 | ||
439 | case "$libdb_needs_pthread" in | |
440 | "Y") | |
441 | libswanted="$libswanted pthread" | |
442 | ;; | |
443 | esac |