Commit | Line | Data |
a0d0e21e |
1 | # hints/dec_osf.sh |
8e964347 |
2 | |
b971f6e4 |
3 | # * If you want to debug perl or want to send a |
8e964347 |
4 | # stack trace for inclusion into an bug report, call |
5 | # Configure with the additional argument -Doptimize=-g2 |
6 | # or uncomment this assignment to "optimize": |
7 | # |
8 | #optimize=-g2 |
9 | # |
8a019ce7 |
10 | # If you want both to optimise and debug with the DEC cc |
11 | # you must have -g3, e.g. "-O4 -g3", and (re)run Configure. |
12 | # |
b971f6e4 |
13 | # * gcc can always have both -g and optimisation on. |
8a019ce7 |
14 | # |
b971f6e4 |
15 | # * debugging optimised code, no matter what compiler |
8a019ce7 |
16 | # one is using, can be surprising and confusing because of |
17 | # the optimisation tricks like code motion, code removal, |
18 | # loop unrolling, and inlining. The source code and the |
19 | # executable code simply do not agree any more while in |
20 | # mid-execution, the optimiser only cares about the results. |
21 | # |
b971f6e4 |
22 | # * Configure will automatically add the often quoted |
f2c69087 |
23 | # -DDEBUGGING for you if the -g is specified. |
24 | # |
b971f6e4 |
25 | # * There is even more optimisation available in the new |
f2c69087 |
26 | # (GEM) DEC cc: -O5 and -fast. "man cc" will tell more about them. |
27 | # The jury is still out whether either or neither help for Perl |
28 | # and how much. Based on very quick testing, -fast boosts |
29 | # raw data copy by about 5-15% (-fast brings in, among other |
30 | # things, inlined, ahem, fast memcpy()), while on the other |
31 | # hand searching things (index, m//, s///), seems to get slower. |
32 | # Your mileage will vary. |
8e964347 |
33 | # |
b971f6e4 |
34 | # * The -std is needed because the following compiled |
e60a08f8 |
35 | # without the -std and linked with -lm |
36 | # |
37 | # #include <math.h> |
38 | # #include <stdio.h> |
39 | # int main(){short x=10,y=sqrt(x);printf("%d\n",y);} |
40 | # |
41 | # will in Digital UNIX 3.* and 4.0b print 0 -- and in Digital |
42 | # UNIX 4.0{,a} dump core: Floating point exception in the printf(), |
43 | # the y has become a signaling NaN. |
44 | # |
b971f6e4 |
45 | # * Compilation warnings like: |
46 | # |
47 | # "Undefined the ANSI standard macro ..." |
48 | # |
49 | # can be ignored, at least while compiling the POSIX extension |
50 | # and especially if using the sfio (the latter is not a standard |
51 | # part of Perl, never mind if it says little to you). |
52 | # |
8e964347 |
53 | |
e60a08f8 |
54 | # If using the DEC compiler we must find out the DEC compiler style: |
55 | # the style changed between Digital UNIX (aka DEC OSF/1) 3 and |
56 | # Digital UNIX 4. The old compiler was originally from Ultrix and |
57 | # the MIPS company, the new compiler is originally from the VAX world |
58 | # and it is called GEM. Many of the options we are going to use depend |
59 | # on the compiler style. |
60 | |
a68015de |
61 | cc=${cc:-cc} |
62 | |
6c7aff00 |
63 | case "`$cc -v 2>&1 | grep cc`" in |
64 | *gcc*) isgcc=gcc ;; |
65 | esac |
66 | |
b691c02f |
67 | # do NOT, I repeat, *NOT* take away the leading tabs |
68 | # Configure Black Magic (TM) |
b971f6e4 |
69 | # reset |
e60a08f8 |
70 | _DEC_cc_style= |
6c7aff00 |
71 | case "$isgcc" in |
a4349bea |
72 | gcc) if [ "X$gccversion" = "X" ]; then |
73 | # Done too late in Configure if hinted |
74 | gccversion=`$cc --version | sed 's/.*(GCC) *//'` |
75 | fi |
993a793c |
76 | set $gccversion |
77 | if test "$1" -lt 2 -o \( "$1" -eq 2 -a \( "$2" -lt 95 -o \( "$2" -eq 95 -a "$3" -lt 3 \) \) \); then |
2cae8c0d |
78 | cat >&4 <<EOF |
79 | |
993a793c |
80 | *** Your cc seems to be gcc and its version ($gccversion) seems to be |
81 | *** less than 2.95.3. This is not a good idea since old versions of gcc |
61f70568 |
82 | *** are known to produce buggy code when compiling Perl (and no doubt for |
83 | *** other programs, too). |
3f8b8817 |
84 | *** |
61f70568 |
85 | *** Therefore, I strongly suggest upgrading your gcc. (Why don't you use |
86 | *** the vendor cc is also a good question. It comes with the operating |
be73ebb0 |
87 | *** system, produces good code, and is very ANSI C fastidious.) |
2cae8c0d |
88 | |
89 | Cannot continue, aborting. |
90 | |
91 | EOF |
92 | exit 1 |
93 | fi |
3f8b8817 |
94 | if test "$1" -eq 2 -a "$2" -eq 95 -a "$3" -le 2; then |
95 | cat >&4 <<EOF |
96 | |
97 | *** Note that as of gcc 2.95.2 (19991024) and Perl 5.6.0 (March 2000) |
98 | *** if the said Perl is compiled with the said gcc the lib/sdbm test |
61f70568 |
99 | *** may dump core (meaning that the SDBM_File extension is unusable). |
100 | *** As this core dump never happens with the vendor cc, this is most |
101 | *** probably a lingering bug in gcc. Therefore unless you have a better |
102 | *** gcc installation you are still better off using the vendor cc. |
3f8b8817 |
103 | |
104 | Since you explicitly chose gcc, I assume that you know what are doing. |
105 | |
106 | EOF |
107 | fi |
be73ebb0 |
108 | # -ansi is fine for gcc in Tru64 (-ansi is not universally so). |
109 | _ccflags_strict_ansi="-ansi" |
2cae8c0d |
110 | ;; |
be73ebb0 |
111 | *) # compile something. |
112 | cat >try.c <<EOF |
113 | int main() { return 0; } |
114 | EOF |
4de7e3a2 |
115 | ccversion=`cc -V | awk '/(Compaq|DEC) C/ {print $3}' | grep '^V'` |
e60a08f8 |
116 | # the main point is the '-v' flag of 'cc'. |
be73ebb0 |
117 | case "`cc -v -c try.c 2>&1`" in |
e60a08f8 |
118 | */gemc_cc*) # we have the new DEC GEM CC |
dfa3a3d3 |
119 | _DEC_cc_style=new |
8a019ce7 |
120 | ;; |
e60a08f8 |
121 | *) # we have the old MIPS CC |
dfa3a3d3 |
122 | _DEC_cc_style=old |
8a019ce7 |
123 | ;; |
e60a08f8 |
124 | esac |
be73ebb0 |
125 | # We need to figure out whether -c99 is a valid flag to use. |
126 | # If it is, we can use it for being nauseatingly C99 ANSI -- |
127 | # but even then the lddlflags needs to stay -std1. |
128 | # If it is not, we must use -std1 for both flags. |
b6c28553 |
129 | # |
be73ebb0 |
130 | case "`cc -c99 try.c 2>&1`" in |
b6c28553 |
131 | *"-c99: Unknown flag"*) |
132 | _ccflags_strict_ansi="-std1" |
133 | ;; |
be73ebb0 |
134 | *) # However, use the -c99 only if compiling for |
135 | # -DPERL_MEM_LOG, where the C99 feature __func__ |
136 | # is useful to have. Otherwise use the good old |
137 | # -std1 so that we stay C89 strict, which the goal |
138 | # of the Perl C code base (no //, no code between |
b6c28553 |
139 | # declarations, etc). Moreover, the Tru64 cc is |
140 | # not fully C99, and most probably never will be. |
141 | # |
be73ebb0 |
142 | # The -DPERL_MEM_LOG can be either in ccflags |
143 | # (if using an old config.sh) or in the command line |
144 | # (which has been stowed away in UU/cmdline.opt). |
b6c28553 |
145 | # |
be73ebb0 |
146 | case "$ccflags `cat UU/cmdline.opt`" in |
147 | *-DPERL_MEM_LOG*) _ccflags_strict_ansi="-c99" ;; |
148 | *) _ccflags_strict_ansi="-std1" ;; |
149 | esac |
150 | ;; |
151 | esac |
152 | _lddlflags_strict_ansi="-std1" |
b6c28553 |
153 | # -no_ansi_alias because Perl code is not that strict |
154 | # (also gcc uses by default -fno-strict-aliasing). |
155 | _ccflags_strict_ansi="$_ccflags_strict_ansi -no_ansi_alias" |
be73ebb0 |
156 | # Cleanup. |
157 | rm -f try.c try.o |
e60a08f8 |
158 | ;; |
159 | esac |
160 | |
be73ebb0 |
161 | # Be nauseatingly ANSI |
162 | ccflags="$ccflags $_ccflags_strict_ansi" |
b971f6e4 |
163 | |
164 | # for gcc the Configure knows about the -fpic: |
165 | # position-independent code for dynamic loading |
166 | |
e60a08f8 |
167 | # we want optimisation |
168 | |
169 | case "$optimize" in |
6c7aff00 |
170 | '') case "$isgcc" in |
171 | gcc) optimize='-O3' ;; |
e60a08f8 |
172 | *) case "$_DEC_cc_style" in |
6c7aff00 |
173 | new) optimize='-O4' ;; |
e60a08f8 |
174 | old) optimize='-O2 -Olimit 3200' ;; |
175 | esac |
b971f6e4 |
176 | ccflags="$ccflags -D_INTRINSICS" |
e60a08f8 |
177 | ;; |
8e964347 |
178 | esac |
179 | ;; |
1fc4cb55 |
180 | esac |
28757baa |
181 | |
f1e45479 |
182 | case "$isgcc" in |
183 | gcc) ;; |
184 | *) case "$optimize" in |
185 | *-O*) # With both -O and -g, the -g must be -g3. |
186 | optimize="`echo $optimize | sed 's/-g[1-4]*/-g3/'`" |
187 | ;; |
188 | esac |
189 | ;; |
190 | esac |
191 | |
532eb838 |
192 | ## Optimization limits |
193 | case "$isgcc" in |
194 | gcc) # gcc 3.2.1 wants a lot of memory for -O3'ing toke.c |
195 | cat >try.c <<EOF |
196 | #include <sys/resource.h> |
197 | |
198 | int main () |
199 | { |
200 | struct rlimit rl; |
201 | int i = getrlimit (RLIMIT_DATA, &rl); |
202 | printf ("%d\n", rl.rlim_cur / (1024 * 1024)); |
203 | } /* main */ |
204 | EOF |
205 | $cc -o try $ccflags $ldflags try.c |
206 | maxdsiz=`./try` |
207 | rm -f try try.c core |
208 | if [ $maxdsiz -lt 256 ]; then |
209 | # less than 256 MB is probably not enough to optimize toke.c with gcc -O3 |
210 | cat <<EOM >&4 |
211 | |
212 | Your process datasize is limited to $maxdsiz MB, which is (sadly) not |
213 | always enough to fully optimize some source code files of Perl, |
214 | at least 256 MB seems to be necessary as of Perl 5.8.0. I'll try to |
215 | use a lower optimization level for those parts. You could either try |
216 | using your shell's ulimit/limit/limits command to raise your datasize |
217 | (assuming the system-wide hard resource limits allow you to go higher), |
218 | or if you can't go higher and if you are a sysadmin, and you *do* want |
219 | the full optimization, you can tune the 'max_per_proc_data_size' |
220 | kernel parameter: see man sysconfigtab, and man sys_attrs_proc. |
221 | |
222 | EOM |
223 | toke_cflags='optimize=-O2' |
224 | fi |
225 | ;; |
226 | esac |
227 | |
61ba5045 |
228 | # The patch 23787 |
229 | # http://public.activestate.com/cgi-bin/perlbrowse?patch=23787 |
0fae7d62 |
230 | # broke things for gcc (at least gcc 3.3) so that many of the pack() |
231 | # checksum tests for formats L, j, J, especially when combined |
232 | # with the < and > specifiers, started to fail if compiled with plain -O3. |
61ba5045 |
233 | case "$isgcc" in |
234 | gcc) |
0fae7d62 |
235 | pp_pack_cflags='optimize="-O3 -fno-cse-skip-blocks"' |
61ba5045 |
236 | ;; |
237 | esac |
238 | |
6c7aff00 |
239 | # we want dynamic fp rounding mode, and we want ieee exception semantics |
240 | case "$isgcc" in |
a59bce4b |
241 | gcc) ;; |
242 | *) case "$_DEC_cc_style" in |
6c7aff00 |
243 | new) ccflags="$ccflags -fprm d -ieee" ;; |
244 | esac |
245 | ;; |
246 | esac |
247 | |
313489a2 |
248 | # Make glibpth agree with the compiler suite. Note that /shlib |
249 | # is not here. That's on purpose. Even though that's where libc |
250 | # really lives from V4.0 on, the linker (and /sbin/loader) won't |
251 | # look there by default. The sharable /sbin utilities were all |
252 | # built with "-Wl,-rpath,/shlib" to get around that. This makes |
253 | # no attempt to figure out the additional location(s) searched by |
254 | # gcc, since not all versions of gcc are easily coerced into |
255 | # revealing that information. |
b0362887 |
256 | glibpth="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc" |
257 | glibpth="$glibpth /usr/lib /usr/local/lib /var/shlib" |
313489a2 |
258 | |
8e964347 |
259 | # dlopen() is in libc |
260 | libswanted="`echo $libswanted | sed -e 's/ dl / /'`" |
261 | |
b971f6e4 |
262 | # libPW contains nothing useful for perl |
8a019ce7 |
263 | libswanted="`echo $libswanted | sed -e 's/ PW / /'`" |
264 | |
723e14d4 |
265 | # libnet contains nothing useful for perl here, and doesn't work |
266 | libswanted="`echo $libswanted | sed -e 's/ net / /'`" |
267 | |
b971f6e4 |
268 | # libbsd contains nothing used by perl that is not already in libc |
8a019ce7 |
269 | libswanted="`echo $libswanted | sed -e 's/ bsd / /'`" |
270 | |
b971f6e4 |
271 | # libc need not be separately listed |
8a019ce7 |
272 | libswanted="`echo $libswanted | sed -e 's/ c / /'`" |
273 | |
b971f6e4 |
274 | # ndbm is already in libc |
275 | libswanted="`echo $libswanted | sed -e 's/ ndbm / /'`" |
8a019ce7 |
276 | |
277 | # the basic lddlflags used always |
278 | lddlflags='-shared -expect_unresolved "*"' |
279 | |
144df5e1 |
280 | # Intentional leading tab. |
8cfab5ff |
281 | myosvers="`/usr/sbin/sizer -v 2>/dev/null || uname -r`" |
144df5e1 |
282 | |
b971f6e4 |
283 | # Fancy compiler suites use optimising linker as well as compiler. |
284 | # <spider@Orb.Nashua.NH.US> |
b8f0c030 |
285 | case "`uname -r`" in |
b971f6e4 |
286 | *[123].*) # old loader |
287 | lddlflags="$lddlflags -O3" |
288 | ;; |
a07564da |
289 | *) if $test "X$optimize" = "X$undef"; then |
290 | lddlflags="$lddlflags -msym" |
291 | else |
144df5e1 |
292 | case "$myosvers" in |
e3159d07 |
293 | *4.0D*) |
294 | # QAR 56761: -O4 + .so may produce broken code, |
295 | # fixed in 4.0E or better. |
296 | ;; |
297 | *) |
298 | lddlflags="$lddlflags $optimize" |
299 | ;; |
300 | esac |
301 | # -msym: If using a sufficiently recent /sbin/loader, |
302 | # keep the module symbols with the modules. |
be73ebb0 |
303 | lddlflags="$lddlflags -msym $_lddlflags_strict_ansi" |
a07564da |
304 | fi |
b971f6e4 |
305 | ;; |
306 | esac |
307 | # Yes, the above loses if gcc does not use the system linker. |
308 | # If that happens, let me know about it. <jhi@iki.fi> |
309 | |
8cfab5ff |
310 | # Because there is no other handy way to recognize 3.X. |
311 | case "`uname -r`" in |
312 | *3.*) ccflags="$ccflags -DDEC_OSF1_3_X" ;; |
313 | esac |
8a019ce7 |
314 | |
b971f6e4 |
315 | # If debugging or (old systems and doing shared) |
316 | # then do not strip the lib, otherwise, strip. |
317 | # As noted above the -DDEBUGGING is added automagically by Configure if -g. |
8a019ce7 |
318 | case "$optimize" in |
319 | *-g*) ;; # left intentionally blank |
b8f0c030 |
320 | *) case "`uname -r`" in |
b971f6e4 |
321 | *[123].*) |
322 | case "$useshrplib" in |
323 | false|undef|'') lddlflags="$lddlflags -s" ;; |
324 | esac |
325 | ;; |
8a019ce7 |
326 | *) lddlflags="$lddlflags -s" |
b971f6e4 |
327 | ;; |
328 | esac |
329 | ;; |
8a019ce7 |
330 | esac |
8e964347 |
331 | |
332 | # |
313489a2 |
333 | # Make embedding in things like INN and Apache more memory friendly. |
334 | # Keep it overridable on the Configure command line, though, so that |
335 | # "-Uuseshrplib" prevents this default. |
336 | # |
337 | |
2bf2710f |
338 | case "$_DEC_cc_style.$useshrplib" in |
339 | new.) useshrplib="$define" ;; |
340 | esac |
313489a2 |
341 | |
85ab1d1d |
342 | # The EFF_ONLY_OK from <sys/access.h> is present but dysfunctional for |
343 | # [RWX]_OK as of Digital UNIX 4.0[A-D]?. If and when this gets fixed, |
344 | # please adjust this appropriately. See also pp_sys.c just before the |
345 | # emulate_eaccess(). |
5ff3f7a4 |
346 | |
baa8820a |
347 | # Fixed in V5.0A. |
144df5e1 |
348 | case "$myosvers" in |
f60a5d46 |
349 | *5.0[A-Z]*|*5.[1-9]*|*[6-9].[0-9]*) |
baa8820a |
350 | : ok |
351 | ;; |
352 | *) |
353 | # V5.0 or previous |
5ff3f7a4 |
354 | pp_sys_cflags='ccflags="$ccflags -DNO_EFF_ONLY_OK"' |
baa8820a |
355 | ;; |
356 | esac |
5ff3f7a4 |
357 | |
6b8eaf93 |
358 | # The off_t is already 8 bytes, so we do have largefileness. |
359 | |
f60a5d46 |
360 | cat > UU/usethreads.cbu <<'EOCBU' |
104d25b7 |
361 | # This script UU/usethreads.cbu will get 'called-back' by Configure |
362 | # after it has prompted the user for whether to use threads. |
104d25b7 |
363 | case "$usethreads" in |
364 | $define|true|[yY]*) |
700a71f5 |
365 | # In Tru64 V5 (at least V5.1A, V5.1B) gcc (at least 3.2.2) |
366 | # cannot be used to compile a threaded Perl. |
367 | cat > pthread.c <<EOF |
368 | #include <pthread.h> |
369 | extern int foo; |
370 | EOF |
371 | $cc -c pthread.c 2> pthread.err |
372 | if grep -q "unrecognized compiler" pthread.err; then |
373 | cat >&4 <<EOF |
374 | *** |
375 | *** I'm sorry but your C compiler ($cc) cannot be used to |
376 | *** compile Perl with threads. The system C compiler should work. |
377 | *** |
378 | |
379 | Cannot continue, aborting. |
380 | |
381 | EOF |
382 | rm -f pthread.* |
383 | exit 1 |
384 | fi |
385 | rm -f pthread.* |
75d72f2c |
386 | # Threads interfaces changed with V4.0. |
6c7aff00 |
387 | case "$isgcc" in |
700a71f5 |
388 | gcc) |
389 | ccflags="-D_REENTRANT $ccflags" |
390 | ;; |
75d72f2c |
391 | *) case "`uname -r`" in |
392 | *[123].*) ccflags="-threads $ccflags" ;; |
393 | *) ccflags="-pthread $ccflags" ;; |
394 | esac |
104d25b7 |
395 | ;; |
75d72f2c |
396 | esac |
397 | case "`uname -r`" in |
398 | *[123].*) libswanted="$libswanted pthreads mach exc c_r" ;; |
399 | *) libswanted="$libswanted pthread exc" ;; |
400 | esac |
e883c329 |
401 | |
baa8820a |
402 | case "$usemymalloc" in |
24130e51 |
403 | '') |
404 | usemymalloc='n' |
baa8820a |
405 | ;; |
406 | esac |
a48ec845 |
407 | # These symbols are renamed in <time.h> so |
408 | # that the Configure hasproto doesn't see them. |
409 | d_asctime_r_proto="$define" |
410 | d_ctime_r_proto="$define" |
411 | d_gmtime_r_proto="$define" |
412 | d_localtime_r_proto="$define" |
104d25b7 |
413 | ;; |
414 | esac |
415 | EOCBU |
416 | |
da0b61dd |
417 | # malloc wrap works |
418 | case "$usemallocwrap" in |
419 | '') usemallocwrap='define' ;; |
420 | esac |
421 | |
f60a5d46 |
422 | cat > UU/uselongdouble.cbu <<'EOCBU' |
423 | # This script UU/uselongdouble.cbu will get 'called-back' by Configure |
424 | # after it has prompted the user for whether to use long doubles. |
425 | case "$uselongdouble" in |
bef5f079 |
426 | $define|true|[yY]*) |
144df5e1 |
427 | case "$myosvers" in |
bef5f079 |
428 | *[1-4].0*) cat >&4 <<EOF |
429 | |
430 | *** |
431 | *** Sorry, you cannot use long doubles in pre-V5.0 releases of Tru64. |
432 | *** |
433 | |
434 | Cannot continue, aborting. |
435 | |
436 | EOF |
437 | exit 1 |
438 | ;; |
fa17d112 |
439 | *) |
be73ebb0 |
440 | # Test whether libc's been fixed yet for long doubles. |
fa17d112 |
441 | cat >try.c <<\TRY |
442 | #include <stdio.h> |
443 | int main(int argc, char **argv) |
444 | { |
445 | unsigned long uvmax = ~0UL; |
446 | long double ld = uvmax + 0.0L; |
447 | char buf1[30], buf2[30]; |
448 | |
449 | (void) sprintf(buf1, "%lu", uvmax); |
450 | (void) sprintf(buf2, "%.0Lf", ld); |
451 | return strcmp(buf1, buf2) != 0; |
452 | } |
453 | TRY |
454 | # Don't bother trying to work with Configure's idea of |
455 | # cc and the various flags. This might not work as-is |
456 | # with gcc -- but we're testing libc, not the compiler. |
be73ebb0 |
457 | if cc -o try $_ccflags_strict_ansi try.c && ./try |
fa17d112 |
458 | then |
459 | : ok |
460 | else |
461 | cat <<\UGLY >&4 |
462 | ! |
463 | Warning! Your libc has not yet been patched so that its "%Lf" format for |
464 | printing long doubles shows all the significant digits. You will get errors |
465 | in the t/op/numconvert test because of this. (The data is still good |
466 | internally, and the "%e" format of printf() or sprintf() in perl will still |
467 | produce valid results.) See README.tru64 for additional details. |
468 | |
469 | Continuing anyway. |
470 | ! |
471 | UGLY |
472 | fi |
473 | $rm -f try try.c |
bef5f079 |
474 | esac |
bef5f079 |
475 | ;; |
f60a5d46 |
476 | esac |
477 | EOCBU |
478 | |
144df5e1 |
479 | case "$myosvers" in |
bef5f079 |
480 | *[1-4].0*) d_modfl=undef ;; # must wait till 5.0 |
1cade9fc |
481 | esac |
482 | |
cfc8a802 |
483 | # Keep that leading tab. |
a4ccfa76 |
484 | old_LD_LIBRARY_PATH=$LD_LIBRARY_PATH |
485 | for p in $loclibpth |
486 | do |
a4ccfa76 |
487 | if test -d $p; then |
488 | echo "Appending $p to LD_LIBRARY_PATH." >& 4 |
489 | case "$LD_LIBRARY_PATH" in |
490 | '') LD_LIBRARY_PATH=$p ;; |
491 | *) LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$p ;; |
492 | esac |
493 | fi |
494 | done |
495 | case "$LD_LIBRARY_PATH" in |
496 | "$old_LD_LIBRARY_PATH") ;; |
497 | *) echo "LD_LIBRARY_PATH is now $LD_LIBRARY_PATH." >& 4 ;; |
c93bd003 |
498 | esac |
5460b889 |
499 | case "$LD_LIBRARY_PATH" in |
500 | '') ;; |
501 | * ) export LD_LIBRARY_PATH ;; |
502 | esac |
c93bd003 |
503 | |
313489a2 |
504 | # |
e60a08f8 |
505 | # Unset temporary variables no more needed. |
506 | # |
507 | |
508 | unset _DEC_cc_style |
509 | |
510 | # |
8e964347 |
511 | # History: |
512 | # |
85ab1d1d |
513 | # perl5.005_51: |
514 | # |
515 | # September-1998 Jarkko Hietaniemi <jhi@iki.fi> |
516 | # |
517 | # * Added the -DNO_EFF_ONLY_OK flag ('use filetest;' support). |
518 | # |
313489a2 |
519 | # perl5.004_57: |
520 | # |
521 | # 19-Dec-1997 Spider Boardman <spider@Orb.Nashua.NH.US> |
522 | # |
85ab1d1d |
523 | # * Newer Digital UNIX compilers enforce signaling for NaN without |
313489a2 |
524 | # -ieee. Added -fprm d at the same time since it's friendlier for |
525 | # embedding. |
526 | # |
527 | # * Fixed the library search path to match cc, ld, and /sbin/loader. |
528 | # |
529 | # * Default to building -Duseshrplib on newer systems. -Uuseshrplib |
530 | # still overrides. |
531 | # |
532 | # * Fix -pthread additions for useshrplib. ld has no -pthread option. |
533 | # |
534 | # |
723e14d4 |
535 | # perl5.004_04: |
536 | # |
537 | # 19-Sep-1997 Spider Boardman <spider@Orb.Nashua.NH.US> |
538 | # |
539 | # * libnet on Digital UNIX is for JAVA, not for sockets. |
540 | # |
541 | # |
b971f6e4 |
542 | # perl5.003_28: |
543 | # |
544 | # 22-Feb-1997 Jarkko Hietaniemi <jhi@iki.fi> |
545 | # |
546 | # * Restructuring Spider's suggestions. |
547 | # |
548 | # * Older Digital UNIXes cannot handle -Olimit ... for $lddlflags. |
549 | # |
550 | # * ld -s cannot be used in older Digital UNIXes when doing shared. |
551 | # |
552 | # |
553 | # 21-Feb-1997 Spider Boardman <spider@Orb.Nashua.NH.US> |
554 | # |
555 | # * -hidden removed. |
556 | # |
557 | # * -DSTANDARD_C removed. |
558 | # |
559 | # * -D_INTRINSICS added. (that -fast does not seem to buy much confirmed) |
560 | # |
561 | # * odbm not in libc, only ndbm. Therefore dbm back to $libswanted. |
562 | # |
563 | # * -msym for the newer runtime loaders. |
564 | # |
565 | # * $optimize also in $lddflags. |
566 | # |
567 | # |
e60a08f8 |
568 | # perl5.003_27: |
569 | # |
570 | # 18-Feb-1997 Jarkko Hietaniemi <jhi@iki.fi> |
571 | # |
572 | # * unset _DEC_cc_style and more commentary on -std. |
573 | # |
574 | # |
dfa3a3d3 |
575 | # perl5.003_26: |
576 | # |
577 | # 15-Feb-1997 Jarkko Hietaniemi <jhi@iki.fi> |
578 | # |
e60a08f8 |
579 | # * -std and -ansi. |
dfa3a3d3 |
580 | # |
581 | # |
f2c69087 |
582 | # perl5.003_24: |
583 | # |
584 | # 30-Jan-1997 Jarkko Hietaniemi <jhi@iki.fi> |
585 | # |
586 | # * Fixing the note on -DDEBUGGING. |
587 | # |
588 | # * Note on -O5 -fast. |
589 | # |
590 | # |
8a019ce7 |
591 | # perl5.003_23: |
592 | # |
593 | # 26-Jan-1997 Jarkko Hietaniemi <jhi@iki.fi> |
594 | # |
595 | # * Notes on how to do both optimisation and debugging. |
596 | # |
597 | # |
598 | # 25-Jan-1997 Jarkko Hietaniemi <jhi@iki.fi> |
599 | # |
600 | # * Remove unneeded libraries from $libswanted: PW, bsd, c, dbm |
601 | # |
602 | # * Restructure the $lddlflags build. |
603 | # |
604 | # * $optimize based on which compiler we have. |
605 | # |
606 | # |
8e964347 |
607 | # perl5.003_22: |
608 | # |
609 | # 23-Jan-1997 Achim Bohnet <ach@rosat.mpe-garching.mpg.de> |
610 | # |
611 | # * Added comments 'how to create a debugging version of perl' |
612 | # |
613 | # * Fixed logic of this script to prevent stripping of shared |
614 | # objects by the loader (see ld man page for -s) is debugging |
615 | # is set via the -g switch. |
616 | # |
617 | # |
618 | # 21-Jan-1997 Achim Bohnet <ach@rosat.mpe-garching.mpg.de> |
619 | # |
620 | # * now 'dl' is always removed from libswanted. Not only if |
621 | # optimize is an empty string. |
622 | # |
623 | # |
624 | # 17-Jan-1997 Achim Bohnet <ach@rosat.mpe-garching.mpg.de> |
625 | # |
626 | # * Removed 'dl' from libswanted: When the FreePort binary |
627 | # translator for Sun binaries is installed Configure concludes |
628 | # that it should use libdl.x.yz.fpx.so :-( |
629 | # Because the dlopen, dlclose,... calls are in the |
630 | # C library it not necessary at all to check for the |
631 | # dl library. Therefore dl is removed from libswanted. |
632 | # |
633 | # |
634 | # 1-Jan-1997 Achim Bohnet <ach@rosat.mpe-garching.mpg.de> |
635 | # |
636 | # * Set -Olimit to 3200 because perl_yylex.c got too big |
637 | # for the optimizer. |
638 | # |
be73ebb0 |
639 | |