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 "$usemymalloc" in |
67 | '') usemymalloc='n' ;; | |
68 | esac | |
1aef975c | 69 | |
06d57135 MHM |
70 | # Check if we're about to use Intel's ICC compiler |
71 | case "`${cc:-cc} -V 2>&1`" in | |
72 | *"Intel(R) C++ Compiler"*) | |
73 | # This is needed for Configure's prototype checks to work correctly | |
74 | ccflags="-we147 $ccflags" | |
75 | # If we're using ICC, we usually want the best performance | |
76 | case "$optimize" in | |
77 | '') optimize='-O3' ;; | |
78 | esac | |
79 | ;; | |
80 | esac | |
81 | ||
1aef975c | 82 | case "$optimize" in |
eb782340 JH |
83 | '') # If we have modern enough gcc and well-supported enough CPU, |
84 | # crank up the optimization level. | |
85 | case "`${cc:-gcc} -v 2>&1`" in | |
bb010532 | 86 | *"gcc version 2.95"*|*"gcc version 3."*) |
eb782340 JH |
87 | case "`arch 2>&1`" in |
88 | i?86|ppc) optimize='-O3' ;; | |
89 | esac | |
90 | ;; | |
91 | esac | |
92 | case "$optimize" in | |
93 | '') optimize='-O2' ;; | |
94 | esac | |
95 | ;; | |
1aef975c AD |
96 | esac |
97 | ||
232e078e AD |
98 | # Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com> |
99 | # for this test. | |
100 | cat >try.c <<'EOM' | |
101 | /* Test for whether ELF binaries are produced */ | |
102 | #include <fcntl.h> | |
103 | #include <stdlib.h> | |
104 | main() { | |
105 | char buffer[4]; | |
106 | int i=open("a.out",O_RDONLY); | |
107 | if(i==-1) | |
108 | exit(1); /* fail */ | |
109 | if(read(i,&buffer[0],4)<4) | |
110 | exit(1); /* fail */ | |
111 | if(buffer[0] != 127 || buffer[1] != 'E' || | |
112 | buffer[2] != 'L' || buffer[3] != 'F') | |
113 | exit(1); /* fail */ | |
114 | exit(0); /* succeed (yes, it's ELF) */ | |
115 | } | |
116 | EOM | |
5440bc8e | 117 | if ${cc:-gcc} try.c >/dev/null 2>&1 && $run ./a.out; then |
ef0c9946 | 118 | cat <<'EOM' >&4 |
232e078e AD |
119 | |
120 | You appear to have ELF support. I'll try to use it for dynamic loading. | |
ef0c9946 | 121 | If dynamic loading doesn't work, read hints/linux.sh for further information. |
232e078e | 122 | EOM |
ef0c9946 | 123 | |
232e078e | 124 | else |
ef0c9946 | 125 | cat <<'EOM' >&4 |
16d20bd9 AD |
126 | |
127 | You don't have an ELF gcc. I will use dld if possible. If you are | |
128 | using a version of DLD earlier than 3.2.6, or don't have it at all, you | |
129 | should probably upgrade. If you are forced to use 3.2.4, you should | |
c2960299 AD |
130 | uncomment a couple of lines in hints/linux.sh and restart Configure so |
131 | that shared libraries will be disallowed. | |
16d20bd9 AD |
132 | |
133 | EOM | |
232e078e | 134 | lddlflags="-r $lddlflags" |
5d94fbed AD |
135 | # These empty values are so that Configure doesn't put in the |
136 | # Linux ELF values. | |
137 | ccdlflags=' ' | |
138 | cccdlflags=' ' | |
c07a80fd | 139 | ccflags="-DOVR_DBL_DIG=14 $ccflags" |
1aef975c AD |
140 | so='sa' |
141 | dlext='o' | |
a5f75d66 | 142 | nm_so_opt=' ' |
1aef975c AD |
143 | ## If you are using DLD 3.2.4 which does not support shared libs, |
144 | ## uncomment the next two lines: | |
145 | #ldflags="-static" | |
146 | #so='none' | |
ef0c9946 | 147 | |
148 | # In addition, on some systems there is a problem with perl and NDBM | |
f443a56e JH |
149 | # which causes AnyDBM and NDBM_File to lock up. This is evidenced |
150 | # in the tests as AnyDBM just freezing. Apparently, this only | |
ef0c9946 | 151 | # happens on a.out systems, so we disable NDBM for all a.out linux |
152 | # systems. If someone can suggest a more robust test | |
153 | # that would be appreciated. | |
154 | # | |
155 | # More info: | |
156 | # Date: Wed, 7 Feb 1996 03:21:04 +0900 | |
157 | # From: Jeffrey Friedl <jfriedl@nff.ncl.omron.co.jp> | |
158 | # | |
159 | # I tried compiling with DBM support and sure enough things locked up | |
160 | # just as advertised. Checking into it, I found that the lockup was | |
161 | # during the call to dbm_open. Not *in* dbm_open -- but between the call | |
162 | # to and the jump into. | |
f443a56e | 163 | # |
ef0c9946 | 164 | # To make a long story short, making sure that the *.a and *.sa pairs of |
165 | # /usr/lib/lib{m,db,gdbm}.{a,sa} | |
166 | # were perfectly in sync took care of it. | |
167 | # | |
168 | # This will generate a harmless Whoa There! message | |
169 | case "$d_dbm_open" in | |
170 | '') cat <<'EOM' >&4 | |
171 | ||
172 | Disabling ndbm. This will generate a Whoa There message in Configure. | |
173 | Read hints/linux.sh for further information. | |
174 | EOM | |
175 | # You can override this with Configure -Dd_dbm_open | |
176 | d_dbm_open=undef | |
177 | ;; | |
178 | esac | |
232e078e | 179 | fi |
a0d0e21e | 180 | |
c2960299 | 181 | rm -f try.c a.out |
16d20bd9 | 182 | |
e218ce4d | 183 | if /bin/sh -c exit; then |
284c50cc MDLR |
184 | echo '' |
185 | echo 'You appear to have a working bash. Good.' | |
c2960299 | 186 | else |
ef0c9946 | 187 | cat << 'EOM' >&4 |
a0d0e21e | 188 | |
ef0c9946 | 189 | *********************** Warning! ********************* |
190 | It would appear you have a defective bash shell installed. This is likely to | |
191 | give you a failure of op/exec test #5 during the test phase of the build, | |
192 | Upgrading to a recent version (1.14.4 or later) should fix the problem. | |
193 | ****************************************************** | |
a0d0e21e | 194 | EOM |
c2960299 AD |
195 | |
196 | fi | |
16d20bd9 | 197 | |
284c50cc MDLR |
198 | # On SPARClinux, |
199 | # The following csh consistently coredumped in the test directory | |
200 | # "/home/mikedlr/perl5.003_94/t", though not most other directories. | |
201 | ||
202 | #Name : csh Distribution: Red Hat Linux (Rembrandt) | |
203 | #Version : 5.2.6 Vendor: Red Hat Software | |
204 | #Release : 3 Build Date: Fri May 24 19:42:14 1996 | |
205 | #Install date: Thu Jul 11 16:20:14 1996 Build Host: itchy.redhat.com | |
206 | #Group : Shells Source RPM: csh-5.2.6-3.src.rpm | |
207 | #Size : 184417 | |
208 | #Description : BSD c-shell | |
209 | ||
210 | # For this reason I suggest using the much bug-fixed tcsh for globbing | |
211 | # where available. | |
212 | ||
3d413b55 JH |
213 | # November 2001: That warning's pretty old now and probably not so |
214 | # relevant, especially since perl now uses File::Glob for globbing. | |
215 | # We'll still look for tcsh, but tone down the warnings. | |
216 | # Andy Dougherty, Nov. 6, 2001 | |
217 | if $csh -c 'echo $version' >/dev/null 2>&1; then | |
218 | echo 'Your csh is really tcsh. Good.' | |
219 | else | |
99cae59c | 220 | if xxx=`./UU/loc tcsh blurfl $pth`; $test -f "$xxx"; then |
46fc3d4c | 221 | echo "Found tcsh. I'll use it for globbing." |
222 | # We can't change Configure's setting of $csh, due to the way | |
223 | # Configure handles $d_portable and commands found in $loclist. | |
224 | # We can set the value for CSH in config.h by setting full_csh. | |
225 | full_csh=$xxx | |
3d413b55 JH |
226 | elif [ -f "$csh" ]; then |
227 | echo "Couldn't find tcsh. Csh-based globbing might be broken." | |
46fc3d4c | 228 | fi |
284c50cc | 229 | fi |
dc66995c | 230 | |
92526645 CN |
231 | # Shimpei Yamashita <shimpei@socrates.patnet.caltech.edu> |
232 | # Message-Id: <33EF1634.B36B6500@pobox.com> | |
f443a56e | 233 | # |
17ff8a05 JH |
234 | # The DR2 of MkLinux (osname=linux,archname=ppc-linux) may need |
235 | # special flags passed in order for dynamic loading to work. | |
92526645 | 236 | # instead of the recommended: |
17ff8a05 | 237 | # |
92526645 | 238 | # ccdlflags='-rdynamic' |
f443a56e | 239 | # |
92526645 CN |
240 | # it should be: |
241 | # ccdlflags='-Wl,-E' | |
17ff8a05 JH |
242 | # |
243 | # So if your DR2 (DR3 came out summer 1998, consider upgrading) | |
244 | # has problems with dynamic loading, uncomment the | |
245 | # following three lines, make distclean, and re-Configure: | |
246 | #case "`uname -r | sed 's/^[0-9.-]*//'``arch`" in | |
247 | #'osfmach3ppc') ccdlflags='-Wl,-E' ;; | |
248 | #esac | |
92526645 | 249 | |
7cd1f58a BJ |
250 | case "`uname -r`" in |
251 | sparc-linux) | |
252 | case "$cccdlflags" in | |
253 | *-fpic*) cccdlflags="`echo $cccdlflags|sed 's/-fpic/-fPIC/'`" ;; | |
254 | *) cccdlflags="$cccdlflags -fPIC" ;; | |
255 | esac | |
256 | ;; | |
257 | esac | |
258 | ||
f443a56e JH |
259 | # SuSE8.2 has /usr/lib/libndbm* which are ld scripts rather than |
260 | # true libraries. The scripts cause binding against static | |
261 | # version of -lgdbm which is a bad idea. So if we have 'nm' | |
262 | # make sure it can read the file | |
263 | # NI-S 2003/08/07 | |
264 | if [ -r /usr/lib/libndbm.so -a -x /usr/bin/nm ] ; then | |
265 | if /usr/bin/nm /usr/lib/libndbm.so >/dev/null 2>&1 ; then | |
266 | echo 'Your shared -lndbm seems to be a real library.' | |
267 | else | |
268 | echo 'Your shared -lndbm is not a real library.' | |
269 | set `echo X "$libswanted "| sed -e 's/ ndbm / /'` | |
270 | shift | |
271 | libswanted="$*" | |
272 | fi | |
273 | fi | |
274 | ||
275 | ||
276 | # This script UU/usethreads.cbu will get 'called-back' by Configure | |
104d25b7 JH |
277 | # after it has prompted the user for whether to use threads. |
278 | cat > UU/usethreads.cbu <<'EOCBU' | |
279 | case "$usethreads" in | |
280 | $define|true|[yY]*) | |
4d76a344 | 281 | ccflags="-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS $ccflags" |
104d25b7 JH |
282 | set `echo X "$libswanted "| sed -e 's/ c / pthread c /'` |
283 | shift | |
284 | libswanted="$*" | |
47b8d1e2 | 285 | |
a48ec845 JH |
286 | # Somehow at least in Debian 2.2 these manage to escape |
287 | # the #define forest of <features.h> and <time.h> so that | |
c95a4480 JH |
288 | # the hasproto macro of Configure doesn't see these protos, |
289 | # even with the -D_GNU_SOURCE. | |
47b8d1e2 | 290 | |
a48ec845 | 291 | d_asctime_r_proto="$define" |
47b8d1e2 | 292 | d_crypt_r_proto="$define" |
a48ec845 JH |
293 | d_ctime_r_proto="$define" |
294 | d_gmtime_r_proto="$define" | |
295 | d_localtime_r_proto="$define" | |
01b53dac | 296 | d_random_r_proto="$define" |
47b8d1e2 | 297 | |
104d25b7 JH |
298 | ;; |
299 | esac | |
300 | EOCBU | |
7f2eea8e GS |
301 | |
302 | cat > UU/uselargefiles.cbu <<'EOCBU' | |
f443a56e | 303 | # This script UU/uselargefiles.cbu will get 'called-back' by Configure |
7f2eea8e GS |
304 | # after it has prompted the user for whether to use large files. |
305 | case "$uselargefiles" in | |
306 | ''|$define|true|[yY]*) | |
9422c00b | 307 | # Keep this in the left margin. |
45c9e83b | 308 | ccflags_uselargefiles="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" |
9422c00b | 309 | |
45c9e83b | 310 | ccflags="$ccflags $ccflags_uselargefiles" |
7f2eea8e GS |
311 | ;; |
312 | esac | |
313 | EOCBU |