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 AB |
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 JH |
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 JH |
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 JH |
23 | # -DDEBUGGING for you if the -g is specified. |
24 | # | |
b971f6e4 | 25 | # * There is even more optimisation available in the new |
f2c69087 JH |
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 JH |
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 JH |
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 JH |
61 | cc=${cc:-cc} |
62 | ||
6c7aff00 JH |
63 | case "`$cc -v 2>&1 | grep cc`" in |
64 | *gcc*) isgcc=gcc ;; | |
65 | esac | |
66 | ||
b691c02f JH |
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 "$isgcc" in |
a4349bea MB |
72 | gcc) if [ "X$gccversion" = "X" ]; then |
73 | # Done too late in Configure if hinted | |
0baa0948 | 74 | gccversion=`$cc -dumpversion` |
a4349bea | 75 | fi |
993a793c RO |
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 JH |
78 | cat >&4 <<EOF |
79 | ||
993a793c RO |
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 JB |
82 | *** are known to produce buggy code when compiling Perl (and no doubt for |
83 | *** other programs, too). | |
3f8b8817 | 84 | *** |
61f70568 JB |
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 JH |
88 | |
89 | Cannot continue, aborting. | |
90 | ||
91 | EOF | |
92 | exit 1 | |
93 | fi | |
3f8b8817 JH |
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 JB |
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 JH |
103 | |
104 | Since you explicitly chose gcc, I assume that you know what are doing. | |
105 | ||
106 | EOF | |
107 | fi | |
be73ebb0 JH |
108 | # -ansi is fine for gcc in Tru64 (-ansi is not universally so). |
109 | _ccflags_strict_ansi="-ansi" | |
2cae8c0d | 110 | ;; |
be73ebb0 JH |
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 $3}' | grep '^V'` |
e60a08f8 | 116 | # the main point is the '-v' flag of 'cc'. |
be73ebb0 | 117 | case "`cc -v -c try.c 2>&1`" in |
e60a08f8 | 118 | */gemc_cc*) # we have the new DEC GEM CC |
dfa3a3d3 | 119 | _DEC_cc_style=new |
8a019ce7 | 120 | ;; |
e60a08f8 | 121 | *) # we have the old MIPS CC |
dfa3a3d3 | 122 | _DEC_cc_style=old |
8a019ce7 | 123 | ;; |
e60a08f8 | 124 | esac |
be73ebb0 JH |
125 | # We need to figure out whether -c99 is a valid flag to use. |
126 | # If it is, we can use it for being nauseatingly C99 ANSI -- | |
127 | # but even then the lddlflags needs to stay -std1. | |
128 | # If it is not, we must use -std1 for both flags. | |
b6c28553 | 129 | # |
be73ebb0 | 130 | case "`cc -c99 try.c 2>&1`" in |
b6c28553 JH |
131 | *"-c99: Unknown flag"*) |
132 | _ccflags_strict_ansi="-std1" | |
133 | ;; | |
be73ebb0 JH |
134 | *) # However, use the -c99 only if compiling for |
135 | # -DPERL_MEM_LOG, where the C99 feature __func__ | |
136 | # is useful to have. Otherwise use the good old | |
137 | # -std1 so that we stay C89 strict, which the goal | |
138 | # of the Perl C code base (no //, no code between | |
b6c28553 JH |
139 | # declarations, etc). Moreover, the Tru64 cc is |
140 | # not fully C99, and most probably never will be. | |
141 | # | |
be73ebb0 JH |
142 | # The -DPERL_MEM_LOG can be either in ccflags |
143 | # (if using an old config.sh) or in the command line | |
144 | # (which has been stowed away in UU/cmdline.opt). | |
b6c28553 | 145 | # |
be73ebb0 JH |
146 | case "$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 JH |
153 | # -no_ansi_alias because Perl code is not that strict |
154 | # (also gcc uses by default -fno-strict-aliasing). | |
155 | _ccflags_strict_ansi="$_ccflags_strict_ansi -no_ansi_alias" | |
be73ebb0 JH |
156 | # Cleanup. |
157 | rm -f try.c try.o | |
e60a08f8 JH |
158 | ;; |
159 | esac | |
160 | ||
be73ebb0 JH |
161 | # Be nauseatingly ANSI |
162 | ccflags="$ccflags $_ccflags_strict_ansi" | |
b971f6e4 | 163 | |
1d0eb99a JH |
164 | # g++ needs a lot of definitions to see the same set of |
165 | # prototypes from <unistd.h> et alia as cxx/cc see. | |
45d3b546 JH |
166 | # Note that we cannot define _XOPEN_SOURCE_EXTENDED or |
167 | # its moral equivalent, _XOPEN_SOURCE=500 (which would | |
168 | # define a lot of the required prototypes for us), because | |
169 | # the gcc-processed version of <sys/wait.h> contains fatally | |
170 | # conflicting prototypes for wait3(). | |
ebbde8c5 | 171 | case "$cc" in |
1d0eb99a | 172 | *g++*) ccflags="$ccflags -D_XOPEN_SOURCE -D_OSF_SOURCE -D_AES_SOURCE -D_BSD -D_POSIX_C_SOURCE=199309L -D_POSIX_PII_SOCKET" ;; |
ebbde8c5 JH |
173 | esac |
174 | ||
b971f6e4 | 175 | # for gcc the Configure knows about the -fpic: |
176 | # position-independent code for dynamic loading | |
177 | ||
e60a08f8 JH |
178 | # we want optimisation |
179 | ||
180 | case "$optimize" in | |
6c7aff00 JH |
181 | '') case "$isgcc" in |
182 | gcc) optimize='-O3' ;; | |
e60a08f8 | 183 | *) case "$_DEC_cc_style" in |
6c7aff00 | 184 | new) optimize='-O4' ;; |
e60a08f8 JH |
185 | old) optimize='-O2 -Olimit 3200' ;; |
186 | esac | |
b971f6e4 | 187 | ccflags="$ccflags -D_INTRINSICS" |
e60a08f8 | 188 | ;; |
8e964347 AB |
189 | esac |
190 | ;; | |
1fc4cb55 | 191 | esac |
28757baa | 192 | |
f1e45479 JH |
193 | case "$isgcc" in |
194 | gcc) ;; | |
195 | *) case "$optimize" in | |
196 | *-O*) # With both -O and -g, the -g must be -g3. | |
197 | optimize="`echo $optimize | sed 's/-g[1-4]*/-g3/'`" | |
198 | ;; | |
199 | esac | |
200 | ;; | |
201 | esac | |
202 | ||
532eb838 MB |
203 | ## Optimization limits |
204 | case "$isgcc" in | |
205 | gcc) # gcc 3.2.1 wants a lot of memory for -O3'ing toke.c | |
206 | cat >try.c <<EOF | |
ebbde8c5 | 207 | #include <stdio.h> |
532eb838 MB |
208 | #include <sys/resource.h> |
209 | ||
210 | int main () | |
211 | { | |
212 | struct rlimit rl; | |
213 | int i = getrlimit (RLIMIT_DATA, &rl); | |
214 | printf ("%d\n", rl.rlim_cur / (1024 * 1024)); | |
215 | } /* main */ | |
216 | EOF | |
217 | $cc -o try $ccflags $ldflags try.c | |
218 | maxdsiz=`./try` | |
219 | rm -f try try.c core | |
220 | if [ $maxdsiz -lt 256 ]; then | |
221 | # less than 256 MB is probably not enough to optimize toke.c with gcc -O3 | |
222 | cat <<EOM >&4 | |
223 | ||
224 | Your process datasize is limited to $maxdsiz MB, which is (sadly) not | |
225 | always enough to fully optimize some source code files of Perl, | |
226 | at least 256 MB seems to be necessary as of Perl 5.8.0. I'll try to | |
227 | use a lower optimization level for those parts. You could either try | |
228 | using your shell's ulimit/limit/limits command to raise your datasize | |
229 | (assuming the system-wide hard resource limits allow you to go higher), | |
230 | or if you can't go higher and if you are a sysadmin, and you *do* want | |
231 | the full optimization, you can tune the 'max_per_proc_data_size' | |
232 | kernel parameter: see man sysconfigtab, and man sys_attrs_proc. | |
233 | ||
234 | EOM | |
235 | toke_cflags='optimize=-O2' | |
236 | fi | |
237 | ;; | |
238 | esac | |
239 | ||
61ba5045 JH |
240 | # The patch 23787 |
241 | # http://public.activestate.com/cgi-bin/perlbrowse?patch=23787 | |
0fae7d62 JH |
242 | # broke things for gcc (at least gcc 3.3) so that many of the pack() |
243 | # checksum tests for formats L, j, J, especially when combined | |
244 | # with the < and > specifiers, started to fail if compiled with plain -O3. | |
61ba5045 JH |
245 | case "$isgcc" in |
246 | gcc) | |
0fae7d62 | 247 | pp_pack_cflags='optimize="-O3 -fno-cse-skip-blocks"' |
61ba5045 JH |
248 | ;; |
249 | esac | |
250 | ||
6c7aff00 JH |
251 | # we want dynamic fp rounding mode, and we want ieee exception semantics |
252 | case "$isgcc" in | |
a59bce4b JH |
253 | gcc) ;; |
254 | *) case "$_DEC_cc_style" in | |
6c7aff00 JH |
255 | new) ccflags="$ccflags -fprm d -ieee" ;; |
256 | esac | |
257 | ;; | |
258 | esac | |
259 | ||
313489a2 SB |
260 | # Make glibpth agree with the compiler suite. Note that /shlib |
261 | # is not here. That's on purpose. Even though that's where libc | |
262 | # really lives from V4.0 on, the linker (and /sbin/loader) won't | |
263 | # look there by default. The sharable /sbin utilities were all | |
264 | # built with "-Wl,-rpath,/shlib" to get around that. This makes | |
265 | # no attempt to figure out the additional location(s) searched by | |
266 | # gcc, since not all versions of gcc are easily coerced into | |
267 | # revealing that information. | |
b0362887 SB |
268 | glibpth="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc" |
269 | glibpth="$glibpth /usr/lib /usr/local/lib /var/shlib" | |
313489a2 | 270 | |
8e964347 AB |
271 | # dlopen() is in libc |
272 | libswanted="`echo $libswanted | sed -e 's/ dl / /'`" | |
273 | ||
b971f6e4 | 274 | # libPW contains nothing useful for perl |
8a019ce7 JH |
275 | libswanted="`echo $libswanted | sed -e 's/ PW / /'`" |
276 | ||
723e14d4 SB |
277 | # libnet contains nothing useful for perl here, and doesn't work |
278 | libswanted="`echo $libswanted | sed -e 's/ net / /'`" | |
279 | ||
b971f6e4 | 280 | # libbsd contains nothing used by perl that is not already in libc |
8a019ce7 JH |
281 | libswanted="`echo $libswanted | sed -e 's/ bsd / /'`" |
282 | ||
b971f6e4 | 283 | # libc need not be separately listed |
8a019ce7 JH |
284 | libswanted="`echo $libswanted | sed -e 's/ c / /'`" |
285 | ||
b971f6e4 | 286 | # ndbm is already in libc |
287 | libswanted="`echo $libswanted | sed -e 's/ ndbm / /'`" | |
8a019ce7 JH |
288 | |
289 | # the basic lddlflags used always | |
290 | lddlflags='-shared -expect_unresolved "*"' | |
291 | ||
144df5e1 | 292 | # Intentional leading tab. |
8cfab5ff | 293 | myosvers="`/usr/sbin/sizer -v 2>/dev/null || uname -r`" |
144df5e1 | 294 | |
b971f6e4 | 295 | # Fancy compiler suites use optimising linker as well as compiler. |
296 | # <spider@Orb.Nashua.NH.US> | |
b8f0c030 | 297 | case "`uname -r`" in |
b971f6e4 | 298 | *[123].*) # old loader |
299 | lddlflags="$lddlflags -O3" | |
300 | ;; | |
a07564da KS |
301 | *) if $test "X$optimize" = "X$undef"; then |
302 | lddlflags="$lddlflags -msym" | |
303 | else | |
144df5e1 | 304 | case "$myosvers" in |
e3159d07 JH |
305 | *4.0D*) |
306 | # QAR 56761: -O4 + .so may produce broken code, | |
307 | # fixed in 4.0E or better. | |
308 | ;; | |
309 | *) | |
310 | lddlflags="$lddlflags $optimize" | |
311 | ;; | |
312 | esac | |
313 | # -msym: If using a sufficiently recent /sbin/loader, | |
314 | # keep the module symbols with the modules. | |
be73ebb0 | 315 | lddlflags="$lddlflags -msym $_lddlflags_strict_ansi" |
a07564da | 316 | fi |
b971f6e4 | 317 | ;; |
318 | esac | |
319 | # Yes, the above loses if gcc does not use the system linker. | |
320 | # If that happens, let me know about it. <jhi@iki.fi> | |
321 | ||
8cfab5ff JH |
322 | # Because there is no other handy way to recognize 3.X. |
323 | case "`uname -r`" in | |
324 | *3.*) ccflags="$ccflags -DDEC_OSF1_3_X" ;; | |
325 | esac | |
8a019ce7 | 326 | |
b971f6e4 | 327 | # If debugging or (old systems and doing shared) |
328 | # then do not strip the lib, otherwise, strip. | |
329 | # As noted above the -DDEBUGGING is added automagically by Configure if -g. | |
8a019ce7 JH |
330 | case "$optimize" in |
331 | *-g*) ;; # left intentionally blank | |
b8f0c030 | 332 | *) case "`uname -r`" in |
b971f6e4 | 333 | *[123].*) |
334 | case "$useshrplib" in | |
335 | false|undef|'') lddlflags="$lddlflags -s" ;; | |
336 | esac | |
337 | ;; | |
8a019ce7 | 338 | *) lddlflags="$lddlflags -s" |
b971f6e4 | 339 | ;; |
340 | esac | |
341 | ;; | |
8a019ce7 | 342 | esac |
8e964347 AB |
343 | |
344 | # | |
313489a2 SB |
345 | # Make embedding in things like INN and Apache more memory friendly. |
346 | # Keep it overridable on the Configure command line, though, so that | |
347 | # "-Uuseshrplib" prevents this default. | |
348 | # | |
349 | ||
2bf2710f GS |
350 | case "$_DEC_cc_style.$useshrplib" in |
351 | new.) useshrplib="$define" ;; | |
352 | esac | |
313489a2 | 353 | |
85ab1d1d JH |
354 | # The EFF_ONLY_OK from <sys/access.h> is present but dysfunctional for |
355 | # [RWX]_OK as of Digital UNIX 4.0[A-D]?. If and when this gets fixed, | |
356 | # please adjust this appropriately. See also pp_sys.c just before the | |
357 | # emulate_eaccess(). | |
5ff3f7a4 | 358 | |
baa8820a | 359 | # Fixed in V5.0A. |
144df5e1 | 360 | case "$myosvers" in |
f60a5d46 | 361 | *5.0[A-Z]*|*5.[1-9]*|*[6-9].[0-9]*) |
baa8820a JH |
362 | : ok |
363 | ;; | |
364 | *) | |
365 | # V5.0 or previous | |
5ff3f7a4 | 366 | pp_sys_cflags='ccflags="$ccflags -DNO_EFF_ONLY_OK"' |
baa8820a JH |
367 | ;; |
368 | esac | |
5ff3f7a4 | 369 | |
6b8eaf93 JH |
370 | # The off_t is already 8 bytes, so we do have largefileness. |
371 | ||
f60a5d46 | 372 | cat > UU/usethreads.cbu <<'EOCBU' |
104d25b7 JH |
373 | # This script UU/usethreads.cbu will get 'called-back' by Configure |
374 | # after it has prompted the user for whether to use threads. | |
104d25b7 JH |
375 | case "$usethreads" in |
376 | $define|true|[yY]*) | |
700a71f5 JH |
377 | # In Tru64 V5 (at least V5.1A, V5.1B) gcc (at least 3.2.2) |
378 | # cannot be used to compile a threaded Perl. | |
379 | cat > pthread.c <<EOF | |
380 | #include <pthread.h> | |
381 | extern int foo; | |
382 | EOF | |
383 | $cc -c pthread.c 2> pthread.err | |
89a3a251 | 384 | if egrep -q "unrecognized compiler|syntax error" pthread.err; then |
700a71f5 JH |
385 | cat >&4 <<EOF |
386 | *** | |
387 | *** I'm sorry but your C compiler ($cc) cannot be used to | |
388 | *** compile Perl with threads. The system C compiler should work. | |
389 | *** | |
390 | ||
391 | Cannot continue, aborting. | |
392 | ||
393 | EOF | |
394 | rm -f pthread.* | |
395 | exit 1 | |
396 | fi | |
397 | rm -f pthread.* | |
75d72f2c | 398 | # Threads interfaces changed with V4.0. |
6c7aff00 | 399 | case "$isgcc" in |
700a71f5 JH |
400 | gcc) |
401 | ccflags="-D_REENTRANT $ccflags" | |
402 | ;; | |
75d72f2c JH |
403 | *) case "`uname -r`" in |
404 | *[123].*) ccflags="-threads $ccflags" ;; | |
405 | *) ccflags="-pthread $ccflags" ;; | |
406 | esac | |
104d25b7 | 407 | ;; |
75d72f2c JH |
408 | esac |
409 | case "`uname -r`" in | |
410 | *[123].*) libswanted="$libswanted pthreads mach exc c_r" ;; | |
411 | *) libswanted="$libswanted pthread exc" ;; | |
412 | esac | |
e883c329 | 413 | |
baa8820a | 414 | case "$usemymalloc" in |
24130e51 JH |
415 | '') |
416 | usemymalloc='n' | |
baa8820a JH |
417 | ;; |
418 | esac | |
a48ec845 JH |
419 | # These symbols are renamed in <time.h> so |
420 | # that the Configure hasproto doesn't see them. | |
421 | d_asctime_r_proto="$define" | |
422 | d_ctime_r_proto="$define" | |
423 | d_gmtime_r_proto="$define" | |
424 | d_localtime_r_proto="$define" | |
104d25b7 JH |
425 | ;; |
426 | esac | |
427 | EOCBU | |
428 | ||
da0b61dd NC |
429 | # malloc wrap works |
430 | case "$usemallocwrap" in | |
431 | '') usemallocwrap='define' ;; | |
432 | esac | |
433 | ||
f60a5d46 JH |
434 | cat > UU/uselongdouble.cbu <<'EOCBU' |
435 | # This script UU/uselongdouble.cbu will get 'called-back' by Configure | |
436 | # after it has prompted the user for whether to use long doubles. | |
437 | case "$uselongdouble" in | |
bef5f079 | 438 | $define|true|[yY]*) |
144df5e1 | 439 | case "$myosvers" in |
bef5f079 JH |
440 | *[1-4].0*) cat >&4 <<EOF |
441 | ||
442 | *** | |
443 | *** Sorry, you cannot use long doubles in pre-V5.0 releases of Tru64. | |
444 | *** | |
445 | ||
446 | Cannot continue, aborting. | |
447 | ||
448 | EOF | |
449 | exit 1 | |
450 | ;; | |
fa17d112 | 451 | *) |
be73ebb0 | 452 | # Test whether libc's been fixed yet for long doubles. |
fa17d112 SB |
453 | cat >try.c <<\TRY |
454 | #include <stdio.h> | |
455 | int main(int argc, char **argv) | |
456 | { | |
457 | unsigned long uvmax = ~0UL; | |
458 | long double ld = uvmax + 0.0L; | |
459 | char buf1[30], buf2[30]; | |
460 | ||
461 | (void) sprintf(buf1, "%lu", uvmax); | |
462 | (void) sprintf(buf2, "%.0Lf", ld); | |
463 | return strcmp(buf1, buf2) != 0; | |
464 | } | |
465 | TRY | |
466 | # Don't bother trying to work with Configure's idea of | |
467 | # cc and the various flags. This might not work as-is | |
468 | # with gcc -- but we're testing libc, not the compiler. | |
be73ebb0 | 469 | if cc -o try $_ccflags_strict_ansi try.c && ./try |
fa17d112 SB |
470 | then |
471 | : ok | |
472 | else | |
473 | cat <<\UGLY >&4 | |
474 | ! | |
475 | Warning! Your libc has not yet been patched so that its "%Lf" format for | |
476 | printing long doubles shows all the significant digits. You will get errors | |
477 | in the t/op/numconvert test because of this. (The data is still good | |
478 | internally, and the "%e" format of printf() or sprintf() in perl will still | |
479 | produce valid results.) See README.tru64 for additional details. | |
480 | ||
481 | Continuing anyway. | |
482 | ! | |
483 | UGLY | |
484 | fi | |
485 | $rm -f try try.c | |
bef5f079 | 486 | esac |
bef5f079 | 487 | ;; |
f60a5d46 JH |
488 | esac |
489 | EOCBU | |
490 | ||
144df5e1 | 491 | case "$myosvers" in |
bef5f079 | 492 | *[1-4].0*) d_modfl=undef ;; # must wait till 5.0 |
1cade9fc JH |
493 | esac |
494 | ||
cfc8a802 | 495 | # Keep that leading tab. |
a4ccfa76 JH |
496 | old_LD_LIBRARY_PATH=$LD_LIBRARY_PATH |
497 | for p in $loclibpth | |
498 | do | |
a4ccfa76 JH |
499 | if test -d $p; then |
500 | echo "Appending $p to LD_LIBRARY_PATH." >& 4 | |
501 | case "$LD_LIBRARY_PATH" in | |
502 | '') LD_LIBRARY_PATH=$p ;; | |
503 | *) LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$p ;; | |
504 | esac | |
505 | fi | |
506 | done | |
507 | case "$LD_LIBRARY_PATH" in | |
508 | "$old_LD_LIBRARY_PATH") ;; | |
509 | *) echo "LD_LIBRARY_PATH is now $LD_LIBRARY_PATH." >& 4 ;; | |
c93bd003 | 510 | esac |
5460b889 JH |
511 | case "$LD_LIBRARY_PATH" in |
512 | '') ;; | |
513 | * ) export LD_LIBRARY_PATH ;; | |
514 | esac | |
c93bd003 | 515 | |
313489a2 | 516 | # |
e60a08f8 JH |
517 | # Unset temporary variables no more needed. |
518 | # | |
519 | ||
520 | unset _DEC_cc_style | |
521 | ||
522 | # | |
8e964347 AB |
523 | # History: |
524 | # | |
85ab1d1d JH |
525 | # perl5.005_51: |
526 | # | |
527 | # September-1998 Jarkko Hietaniemi <jhi@iki.fi> | |
528 | # | |
529 | # * Added the -DNO_EFF_ONLY_OK flag ('use filetest;' support). | |
530 | # | |
313489a2 SB |
531 | # perl5.004_57: |
532 | # | |
533 | # 19-Dec-1997 Spider Boardman <spider@Orb.Nashua.NH.US> | |
534 | # | |
85ab1d1d | 535 | # * Newer Digital UNIX compilers enforce signaling for NaN without |
313489a2 SB |
536 | # -ieee. Added -fprm d at the same time since it's friendlier for |
537 | # embedding. | |
538 | # | |
539 | # * Fixed the library search path to match cc, ld, and /sbin/loader. | |
540 | # | |
541 | # * Default to building -Duseshrplib on newer systems. -Uuseshrplib | |
542 | # still overrides. | |
543 | # | |
544 | # * Fix -pthread additions for useshrplib. ld has no -pthread option. | |
545 | # | |
546 | # | |
723e14d4 SB |
547 | # perl5.004_04: |
548 | # | |
549 | # 19-Sep-1997 Spider Boardman <spider@Orb.Nashua.NH.US> | |
550 | # | |
551 | # * libnet on Digital UNIX is for JAVA, not for sockets. | |
552 | # | |
553 | # | |
b971f6e4 | 554 | # perl5.003_28: |
555 | # | |
556 | # 22-Feb-1997 Jarkko Hietaniemi <jhi@iki.fi> | |
557 | # | |
558 | # * Restructuring Spider's suggestions. | |
559 | # | |
560 | # * Older Digital UNIXes cannot handle -Olimit ... for $lddlflags. | |
561 | # | |
562 | # * ld -s cannot be used in older Digital UNIXes when doing shared. | |
563 | # | |
564 | # | |
565 | # 21-Feb-1997 Spider Boardman <spider@Orb.Nashua.NH.US> | |
566 | # | |
567 | # * -hidden removed. | |
568 | # | |
569 | # * -DSTANDARD_C removed. | |
570 | # | |
571 | # * -D_INTRINSICS added. (that -fast does not seem to buy much confirmed) | |
572 | # | |
573 | # * odbm not in libc, only ndbm. Therefore dbm back to $libswanted. | |
574 | # | |
575 | # * -msym for the newer runtime loaders. | |
576 | # | |
577 | # * $optimize also in $lddflags. | |
578 | # | |
579 | # | |
e60a08f8 JH |
580 | # perl5.003_27: |
581 | # | |
582 | # 18-Feb-1997 Jarkko Hietaniemi <jhi@iki.fi> | |
583 | # | |
584 | # * unset _DEC_cc_style and more commentary on -std. | |
585 | # | |
586 | # | |
dfa3a3d3 CS |
587 | # perl5.003_26: |
588 | # | |
589 | # 15-Feb-1997 Jarkko Hietaniemi <jhi@iki.fi> | |
590 | # | |
e60a08f8 | 591 | # * -std and -ansi. |
dfa3a3d3 CS |
592 | # |
593 | # | |
f2c69087 JH |
594 | # perl5.003_24: |
595 | # | |
596 | # 30-Jan-1997 Jarkko Hietaniemi <jhi@iki.fi> | |
597 | # | |
598 | # * Fixing the note on -DDEBUGGING. | |
599 | # | |
600 | # * Note on -O5 -fast. | |
601 | # | |
602 | # | |
8a019ce7 JH |
603 | # perl5.003_23: |
604 | # | |
605 | # 26-Jan-1997 Jarkko Hietaniemi <jhi@iki.fi> | |
606 | # | |
607 | # * Notes on how to do both optimisation and debugging. | |
608 | # | |
609 | # | |
610 | # 25-Jan-1997 Jarkko Hietaniemi <jhi@iki.fi> | |
611 | # | |
612 | # * Remove unneeded libraries from $libswanted: PW, bsd, c, dbm | |
613 | # | |
614 | # * Restructure the $lddlflags build. | |
615 | # | |
616 | # * $optimize based on which compiler we have. | |
617 | # | |
618 | # | |
8e964347 AB |
619 | # perl5.003_22: |
620 | # | |
621 | # 23-Jan-1997 Achim Bohnet <ach@rosat.mpe-garching.mpg.de> | |
622 | # | |
623 | # * Added comments 'how to create a debugging version of perl' | |
624 | # | |
625 | # * Fixed logic of this script to prevent stripping of shared | |
626 | # objects by the loader (see ld man page for -s) is debugging | |
627 | # is set via the -g switch. | |
628 | # | |
629 | # | |
630 | # 21-Jan-1997 Achim Bohnet <ach@rosat.mpe-garching.mpg.de> | |
631 | # | |
632 | # * now 'dl' is always removed from libswanted. Not only if | |
633 | # optimize is an empty string. | |
634 | # | |
635 | # | |
636 | # 17-Jan-1997 Achim Bohnet <ach@rosat.mpe-garching.mpg.de> | |
637 | # | |
638 | # * Removed 'dl' from libswanted: When the FreePort binary | |
639 | # translator for Sun binaries is installed Configure concludes | |
640 | # that it should use libdl.x.yz.fpx.so :-( | |
641 | # Because the dlopen, dlclose,... calls are in the | |
642 | # C library it not necessary at all to check for the | |
643 | # dl library. Therefore dl is removed from libswanted. | |
644 | # | |
645 | # | |
646 | # 1-Jan-1997 Achim Bohnet <ach@rosat.mpe-garching.mpg.de> | |
647 | # | |
648 | # * Set -Olimit to 3200 because perl_yylex.c got too big | |
649 | # for the optimizer. | |
650 | # | |
be73ebb0 | 651 |