aboutsummaryrefslogtreecommitdiffstats
path: root/Makefile.shared
blob: e753f44e18fdf6878a25024e5939f6f0d7db6305 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
#
# Helper makefile to link shared libraries in a portable way.
# This is much simpler than libtool, and hopefully not too error-prone.
#
# The following variables need to be set on the command line to build
# properly

# CC contains the current compiler.  This one MUST be defined
CC=cc
CFLAGS=$(CFLAG)
# LDFLAGS contains flags to be used when temporary object files (when building
# shared libraries) are created, or when an application is linked.
# SHARED_LDFLAGS contains flags to be used when the shared library is created.
LDFLAGS=
SHARED_LDFLAGS=

NM=nm

# LIBNAME contains just the name of the library, without prefix ("lib"
# on Unix, "cyg" for certain forms under Cygwin...) or suffix (.a, .so,
# .dll, ...).  This one MUST have a value when using this makefile to
# build shared libraries.
# For example, to build libfoo.so, you need to do the following:
#LIBNAME=foo
LIBNAME=

# APPNAME contains just the name of the application, without suffix (""
# on Unix, ".exe" on Windows, ...).  This one MUST have a value when using
# this makefile to build applications.
# For example, to build foo, you need to do the following:
#APPNAME=foo
APPNAME=

# OBJECTS contains all the object files to link together into the application.
# This must contain at least one object file.
#OBJECTS=foo.o
OBJECTS=

# LIBEXTRAS contains extra modules to link together with the library.
# For example, if a second library, say libbar.a needs to be linked into
# libfoo.so, you need to do the following:
#LIBEXTRAS=libbar.a
# Note that this MUST be used when using the link_o targets, to hold the
# names of all object files that go into the target library.
LIBEXTRAS=

# LIBVERSION contains the current version of the library.
# For example, to build libfoo.so.1.2, you need to do the following:
#LIBVERSION=1.2
LIBVERSION=

# LIBCOMPATVERSIONS contains the compatibility versions (a list) of
# the library.  They MUST be in decreasing order.
# For example, if libfoo.so.1.2.1 is backward compatible with libfoo.so.1.2
# and libfoo.so.1, you need to do the following:
#LIBCOMPATVERSIONS=1.2 1
# Note that on systems that use sonames, the last number will appear as
# part of it.
# It's also possible, for systems that support it (Tru64, for example),
# to add extra compatibility info with more precision, by adding a second
# list of versions, separated from the first with a semicolon, like this:
#LIBCOMPATVERSIONS=1.2 1;1.2.0 1.1.2 1.1.1 1.1.0 1.0.0
LIBCOMPATVERSIONS=

# LIBDEPS contains all the flags necessary to cover all necessary
# dependencies to other libraries.
LIBDEPS=

#------------------------------------------------------------------------------
# The rest is private to this makefile.

SET_X=:
#SET_X=set -x

top:
	echo "Trying to use this makefile interactively?  Don't."

CALC_VERSIONS=	\
	SHLIB_COMPAT=; SHLIB_SOVER=; \
	if [ -n "$(LIBVERSION)$(LIBCOMPATVERSIONS)" ]; then \
		prev=""; \
		for v in `echo "$(LIBVERSION) $(LIBCOMPATVERSIONS)" | cut -d';' -f1`; do \
			SHLIB_SOVER_NODOT=$$v; \
			SHLIB_SOVER=.$$v; \
			if [ -n "$$prev" ]; then \
				SHLIB_COMPAT="$$SHLIB_COMPAT .$$prev"; \
			fi; \
			prev=$$v; \
		done; \
	fi

LINK_APP=	\
  ( $(SET_X);   \
    LIBDEPS="$${LIBDEPS:-$(LIBDEPS)}"; \
    LDCMD="$${LDCMD:-$(CC)}"; LDFLAGS="$${LDFLAGS:-$(CFLAGS)}"; \
    LIBPATH=`for x in $$LIBDEPS; do echo $$x; done | sed -e 's/^ *-L//;t' -e d | uniq`; \
    LIBPATH=`echo $$LIBPATH | sed -e 's/ /:/g'`; \
    LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
    $${LDCMD} $${LDFLAGS} -o $${APPNAME:=$(APPNAME)} $(OBJECTS) $${LIBDEPS} )

LINK_SO=	\
  ( $(SET_X);   \
    LIBDEPS="$${LIBDEPS:-$(LIBDEPS)}"; \
    SHAREDCMD="$${SHAREDCMD:-$(CC)}"; \
    SHAREDFLAGS="$${SHAREDFLAGS:-$(CFLAGS) $(SHARED_LDFLAGS)}"; \
    LIBPATH=`for x in $$LIBDEPS; do echo $$x; done | sed -e 's/^ *-L//;t' -e d | uniq`; \
    LIBPATH=`echo $$LIBPATH | sed -e 's/ /:/g'`; \
    LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
    $${SHAREDCMD} $${SHAREDFLAGS} \
	-o $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX \
	$$ALLSYMSFLAGS $$SHOBJECTS $$NOALLSYMSFLAGS $$LIBDEPS \
  ) && $(SYMLINK_SO)

SYMLINK_SO=	\
	if [ -n "$$INHIBIT_SYMLINKS" ]; then :; else \
		prev=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX; \
		if [ -n "$$SHLIB_COMPAT" ]; then \
			for x in $$SHLIB_COMPAT; do \
				( $(SET_X); rm -f $$SHLIB$$x$$SHLIB_SUFFIX; \
				  ln -s $$prev $$SHLIB$$x$$SHLIB_SUFFIX ); \
				prev=$$SHLIB$$x$$SHLIB_SUFFIX; \
			done; \
		fi; \
		if [ -n "$$SHLIB_SOVER" ]; then \
			( $(SET_X); rm -f $$SHLIB$$SHLIB_SUFFIX; \
			  ln -s $$prev $$SHLIB$$SHLIB_SUFFIX ); \
		fi; \
	fi

LINK_SO_A=	SHOBJECTS="lib$(LIBNAME).a $(LIBEXTRAS)"; $(LINK_SO)
LINK_SO_O=	SHOBJECTS="$(LIBEXTRAS)"; $(LINK_SO)

LINK_SO_A_VIA_O=	\
  SHOBJECTS=lib$(LIBNAME).o; \
  ALL=$$ALLSYMSFLAGS; ALLSYMSFLAGS=; NOALLSYMSFLAGS=; \
  ( $(SET_X); \
    ld $(LDFLAGS) -r -o lib$(LIBNAME).o $$ALL lib$(LIBNAME).a $(LIBEXTRAS) ); \
  $(LINK_SO) && rm -f lib$(LIBNAME).o

LINK_SO_A_UNPACKED=	\
  UNPACKDIR=link_tmp.$$$$; rm -rf $$UNPACKDIR; mkdir $$UNPACKDIR; \
  (cd $$UNPACKDIR; ar x ../lib$(LIBNAME).a) && \
  ([ -z "$(LIBEXTRAS)" ] || cp $(LIBEXTRAS) $$UNPACKDIR) && \
  SHOBJECTS=$$UNPACKDIR/*.o; \
  $(LINK_SO) && rm -rf $$UNPACKDIR

DETECT_GNU_LD=($(CC) -Wl,-V /dev/null 2>&1 | grep '^GNU ld' )>/dev/null

DO_GNU_SO=$(CALC_VERSIONS); \
	SHLIB=lib$(LIBNAME).so; \
	SHLIB_SUFFIX=; \
	ALLSYMSFLAGS='-Wl,--whole-archive'; \
	NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-Bsymbolic -Wl,-soname=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"

DO_GNU_APP=LDFLAGS="$(CFLAGS) -Wl,-rpath,$(LIBRPATH)"

#This is rather special.  It's a special target with which one can link
#applications without bothering with any features that have anything to
#do with shared libraries, for example when linking against static
#libraries.  It's mostly here to avoid a lot of conditionals everywhere
#else...
link_app.:
	$(LINK_APP)

link_o.gnu:
	@ $(DO_GNU_SO); $(LINK_SO_O)
link_a.gnu:
	@ $(DO_GNU_SO); $(LINK_SO_A)
link_app.gnu:
	@ $(DO_GNU_APP); $(LINK_APP)

DO_BEOS_SO=	SHLIB=lib$(LIBNAME).so; \
	SHLIB_SUFFIX=; \
	ALLSYMSFLAGS='-Wl,--whole-archive'; \
	NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-Bsymbolic -Wl,-soname=$$SHLIB$$SHLIB_SUFFIX"

link_o.beos:
	@ $(DO_BEOS_SO); $(LINK_SO_O)
link_a.beos:
	@ $(DO_BEOS_SO); $(LINK_SO_A)

link_o.bsd:
	@if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
	$(CALC_VERSIONS); \
	SHLIB=lib$(LIBNAME).so; \
	SHLIB_SUFFIX=; \
	LIBDEPS=" "; \
	ALLSYMSFLAGS="-Wl,-Bforcearchive"; \
	NOALLSYMSFLAGS=; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -nostdlib"; \
	fi; $(LINK_SO_O)
link_a.bsd:
	@if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
	$(CALC_VERSIONS); \
	SHLIB=lib$(LIBNAME).so; \
	SHLIB_SUFFIX=; \
	LIBDEPS=" "; \
	ALLSYMSFLAGS="-Wl,-Bforcearchive"; \
	NOALLSYMSFLAGS=; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -nostdlib"; \
	fi; $(LINK_SO_A)
link_app.bsd:
	@if $(DETECT_GNU_LD); then $(DO_GNU_APP); else \
	LDFLAGS="$(CFLAGS) -Wl,-rpath,$(LIBPATH)"; \
	fi; $(LINK_APP)

# For Darwin AKA Mac OS/X (dyld)
# Originally link_o.darwin produced .so, because it was hard-coded
# in dso_dlfcn module. At later point dso_dlfcn switched to .dylib
# extension in order to allow for run-time linking with vendor-
# supplied shared libraries such as libz, so that link_o.darwin had
# to be harmonized with it. This caused minor controversy, because
# it was believed that dlopen can't be used to dynamically load
# .dylib-s, only so called bundle modules (ones linked with -bundle
# flag). The belief seems to be originating from pre-10.4 release,
# where dlfcn functionality was emulated by dlcompat add-on. In
# 10.4 dlopen was rewritten as native part of dyld and is documented
# to be capable of loading both dynamic libraries and bundles. In
# order to provide compatibility with pre-10.4 dlopen, modules are
# linked with -bundle flag, which makes .dylib extension misleading.
# It works, because dlopen is [and always was] extension-agnostic.
# Alternative to this heuristic approach is to develop specific
# MacOS X dso module relying on whichever "native" dyld interface.
link_o.darwin:
	@ $(CALC_VERSIONS); \
	SHLIB=lib$(LIBNAME); \
	SHLIB_SUFFIX=.dylib; \
	ALLSYMSFLAGS='-all_load'; \
	NOALLSYMSFLAGS=''; \
	SHAREDFLAGS="$(CFLAGS) `echo $(SHARED_LDFLAGS) | sed s/dynamiclib/bundle/`"; \
	if [ -n "$(LIBVERSION)" ]; then \
		SHAREDFLAGS="$$SHAREDFLAGS -current_version $(LIBVERSION)"; \
	fi; \
	if [ -n "$$SHLIB_SOVER_NODOT" ]; then \
		SHAREDFLAGS="$$SHAREDFLAGS -compatibility_version $$SHLIB_SOVER_NODOT"; \
	fi; \
	$(LINK_SO_O)
link_a.darwin:
	@ $(CALC_VERSIONS); \
	SHLIB=lib$(LIBNAME); \
	SHLIB_SUFFIX=.dylib; \
	ALLSYMSFLAGS='-all_load'; \
	NOALLSYMSFLAGS=''; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS)"; \
	if [ -n "$(LIBVERSION)" ]; then \
		SHAREDFLAGS="$$SHAREDFLAGS -current_version $(LIBVERSION)"; \
	fi; \
	if [ -n "$$SHLIB_SOVER_NODOT" ]; then \
		SHAREDFLAGS="$$SHAREDFLAGS -compatibility_version $$SHLIB_SOVER_NODOT"; \
	fi; \
	SHAREDFLAGS="$$SHAREDFLAGS -install_name $(INSTALLTOP)/$(LIBDIR)/$$SHLIB$(SHLIB_EXT)"; \
	$(LINK_SO_A)
link_app.darwin:	# is there run-path on darwin?
	$(LINK_APP)

link_o.cygwin:
	@ $(CALC_VERSIONS); \
	INHIBIT_SYMLINKS=yes; \
	SHLIB=cyg$(LIBNAME); \
	base=-Wl,--enable-auto-image-base; \
	deffile=; \
	if expr $(PLATFORM) : 'mingw' > /dev/null; then \
		SHLIB=$(LIBNAME)eay32; base=; \
		if test -f $(LIBNAME)eay32.def; then \
			deffile=$(LIBNAME)eay32.def; \
		fi; \
	fi; \
	SHLIB_SUFFIX=.dll; \
	LIBVERSION="$(LIBVERSION)"; \
	SHLIB_SOVER=${LIBVERSION:+"-$(LIBVERSION)"}; \
	ALLSYMSFLAGS='-Wl,--whole-archive'; \
	NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared $$base $$deffile -Wl,-s,-Bsymbolic"; \
	$(LINK_SO_O)
#for mingw target if def-file is in use dll-name should match library-name
link_a.cygwin:
	@ $(CALC_VERSIONS); \
	INHIBIT_SYMLINKS=yes; \
	SHLIB=cyg$(LIBNAME); SHLIB_SOVER=-$(LIBVERSION); SHLIB_SUFFIX=.dll; \
	dll_name=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX; extras=; \
	base=-Wl,--enable-auto-image-base; \
	if expr $(PLATFORM) : 'mingw' > /dev/null; then \
		case $(LIBNAME) in \
			crypto) SHLIB=libeay;; \
			ssl) SHLIB=ssleay;; \
		esac; \
		SHLIB_SOVER=32; \
		extras="$(LIBNAME).def"; \
		$(PERL) util/mkdef.pl 32 $$SHLIB > $$extras; \
		base=; [ $(LIBNAME) = "crypto" ] && base=-Wl,--image-base,0x63000000; \
	fi; \
	dll_name=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX; \
	$(PERL) util/mkrc.pl $$dll_name | \
		$(CROSS_COMPILE)windres -o rc.o; \
	extras="$$extras rc.o"; \
	ALLSYMSFLAGS='-Wl,--whole-archive'; \
	NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared $$base -Wl,-s,-Bsymbolic -Wl,--out-implib,lib$(LIBNAME).dll.a $$extras"; \
	[ -f apps/$$dll_name ] && rm apps/$$dll_name; \
	[ -f test/$$dll_name ] && rm test/$$dll_name; \
	$(LINK_SO_A) || exit 1; \
	rm $$extras; \
	cp -p $$dll_name apps/; \
	cp -p $$dll_name test/
link_app.cygwin:
	@if expr "$(CFLAGS)" : '.*OPENSSL_USE_APPLINK' > /dev/null; then \
		LIBDEPS="$(TOP)/crypto/applink.o $${LIBDEPS:-$(LIBDEPS)}"; \
		export LIBDEPS; \
	fi; \
	$(LINK_APP)

link_o.alpha-osf1:
	@ if $(DETECT_GNU_LD); then \
		$(DO_GNU_SO); \
	else \
		SHLIB=lib$(LIBNAME).so; \
		SHLIB_SUFFIX=; \
		SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
		if [ -n "$$SHLIB_HIST" ]; then \
			SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
		else \
			SHLIB_HIST="$(LIBVERSION)"; \
		fi; \
		SHLIB_SOVER=; \
		ALLSYMSFLAGS='-all'; \
		NOALLSYMSFLAGS='-none'; \
		SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-B,symbolic"; \
		if [ -n "$$SHLIB_HIST" ]; then \
			SHAREDFLAGS="$$SHAREDFLAGS -set_version $$SHLIB_HIST"; \
		fi; \
	fi; \
	$(LINK_SO_O)
link_a.alpha-osf1:
	@ if $(DETECT_GNU_LD); then \
		$(DO_GNU_SO); \
	else \
		SHLIB=lib$(LIBNAME).so; \
		SHLIB_SUFFIX=; \
		SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
		if [ -n "$$SHLIB_HIST" ]; then \
			SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
		else \
			SHLIB_HIST="$(LIBVERSION)"; \
		fi; \
		SHLIB_SOVER=; \
		ALLSYMSFLAGS='-all'; \
		NOALLSYMSFLAGS='-none'; \
		SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-B,symbolic"; \
		if [ -n "$$SHLIB_HIST" ]; then \
			SHAREDFLAGS="$$SHAREDFLAGS -set_version $$SHLIB_HIST"; \
		fi; \
	fi; \
	$(LINK_SO_A)
link_app.alpha-osf1:
	@if $(DETECT_GNU_LD); then \
		$(DO_GNU_APP); \
	else \
		LDFLAGS="$(CFLAGS) -rpath $(LIBRPATH)"; \
	fi; \
	$(LINK_APP)

link_o.solaris:
	@ if $(DETECT_GNU_LD); then \
		$(DO_GNU_SO); \
	else \
		$(CALC_VERSIONS); \
		MINUSZ='-z '; \
		($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSZ='-Wl,-z,'; \
		SHLIB=lib$(LIBNAME).so; \
		SHLIB_SUFFIX=; \
		ALLSYMSFLAGS="$${MINUSZ}allextract"; \
		NOALLSYMSFLAGS="$${MINUSZ}defaultextract"; \
		SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-Bsymbolic"; \
	fi; \
	$(LINK_SO_O)
link_a.solaris:
	@ if $(DETECT_GNU_LD); then \
		$(DO_GNU_SO); \
	else \
		$(CALC_VERSIONS); \
		MINUSZ='-z '; \
		($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSZ='-Wl,-z,'; \
		SHLIB=lib$(LIBNAME).so; \
		SHLIB_SUFFIX=;\
		ALLSYMSFLAGS="$${MINUSZ}allextract"; \
		NOALLSYMSFLAGS="$${MINUSZ}defaultextract"; \
		SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-Bsymbolic"; \
	fi; \
	$(LINK_SO_A)
link_app.solaris:
	@ if $(DETECT_GNU_LD); then \
		$(DO_GNU_APP); \
	else \
		LDFLAGS="$(CFLAGS) -R $(LIBRPATH)"; \
	fi; \
	$(LINK_APP)

# OpenServer 5 native compilers used
link_o.svr3:
	@ if $(DETECT_GNU_LD); then \
		$(DO_GNU_SO); \
	else \
		$(CALC_VERSIONS); \
		SHLIB=lib$(LIBNAME).so; \
		SHLIB_SUFFIX=; \
		ALLSYMSFLAGS=''; \
		NOALLSYMSFLAGS=''; \
		SHAREDFLAGS="$(CFLAGS) -G -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
	fi; \
	$(LINK_SO_O)
link_a.svr3:
	@ if $(DETECT_GNU_LD); then \
		$(DO_GNU_SO); \
	else \
		$(CALC_VERSIONS); \
		SHLIB=lib$(LIBNAME).so; \
		SHLIB_SUFFIX=; \
		ALLSYMSFLAGS=''; \
		NOALLSYMSFLAGS=''; \
		SHAREDFLAGS="$(CFLAGS) -G -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
	fi; \
	$(LINK_SO_A_UNPACKED)
link_app.svr3:
	@$(DETECT_GNU_LD) && $(DO_GNU_APP); \
	$(LINK_APP)

# UnixWare 7 and OpenUNIX 8 native compilers used
link_o.svr5:
	@ if $(DETECT_GNU_LD); then \
		$(DO_GNU_SO); \
	else \
		$(CALC_VERSIONS); \
		SHARE_FLAG='-G'; \
		($(CC) -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
		SHLIB=lib$(LIBNAME).so; \
		SHLIB_SUFFIX=; \
		ALLSYMSFLAGS=''; \
		NOALLSYMSFLAGS=''; \
		SHAREDFLAGS="$(CFLAGS) $${SHARE_FLAG} -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
	fi; \
	$(LINK_SO_O)
link_a.svr5:
	@ if $(DETECT_GNU_LD); then \
		$(DO_GNU_SO); \
	else \
		$(CALC_VERSIONS); \
		SHARE_FLAG='-G'; \
		($(CC) -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
		SHLIB=lib$(LIBNAME).so; \
		SHLIB_SUFFIX=; \
		ALLSYMSFLAGS=''; \
		NOALLSYMSFLAGS=''; \
		SHAREDFLAGS="$(CFLAGS) $${SHARE_FLAG} -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
	fi; \
	$(LINK_SO_A_UNPACKED)
link_app.svr5:
	@$(DETECT_GNU_LD) && $(DO_GNU_APP); \
	$(LINK_APP)

link_o.irix:
	@ if $(DETECT_GNU_LD); then \
		$(DO_GNU_SO); \
	else \
		$(CALC_VERSIONS); \
		SHLIB=lib$(LIBNAME).so; \
		SHLIB_SUFFIX=; \
		MINUSWL=""; \
		($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSWL="-Wl,"; \
		ALLSYMSFLAGS="$${MINUSWL}-all"; \
		NOALLSYMSFLAGS="$${MINUSWL}-none"; \
		SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-soname,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,-B,symbolic"; \
	fi; \
	$(LINK_SO_O)
link_a.irix:
	@ if $(DETECT_GNU_LD); then \
		$(DO_GNU_SO); \
	else \
		$(CALC_VERSIONS); \
		SHLIB=lib$(LIBNAME).so; \
		SHLIB_SUFFIX=; \
		MINUSWL=""; \
		($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSWL="-Wl,"; \
		ALLSYMSFLAGS="$${MINUSWL}-all"; \
		NOALLSYMSFLAGS="$${MINUSWL}-none"; \
		SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-soname,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,-B,symbolic"; \
	fi; \
	$(LINK_SO_A)
link_app.irix:
	@LDFLAGS="$(CFLAGS) -Wl,-rpath,$(LIBRPATH)"; \
	$(LINK_APP)

# 32-bit PA-RISC HP-UX embeds the -L pathname of libs we link with, so
# we compensate for it with +cdp ../: and +cdp ./:. Yes, these rewrite
# rules imply that we can only link one level down in catalog structure,
# but that's what takes place for the moment of this writing. +cdp option
# was introduced in HP-UX 11.x and applies in 32-bit PA-RISC link
# editor context only [it's simply ignored in other cases, which are all
# ELFs by the way].
#
link_o.hpux:
	@if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
	$(CALC_VERSIONS); \
	SHLIB=lib$(LIBNAME).sl; \
	expr "$(CFLAGS)" : '.*DSO_DLFCN' > /dev/null && SHLIB=lib$(LIBNAME).so; \
	SHLIB_SUFFIX=; \
	ALLSYMSFLAGS='-Wl,-Fl'; \
	NOALLSYMSFLAGS=''; \
	expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+h,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,+cdp,../:,+cdp,./:"; \
	fi; \
	rm -f $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX || :; \
	$(LINK_SO_O) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
link_a.hpux:
	@if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
	$(CALC_VERSIONS); \
	SHLIB=lib$(LIBNAME).sl; \
	expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
	SHLIB_SUFFIX=; \
	ALLSYMSFLAGS='-Wl,-Fl'; \
	NOALLSYMSFLAGS=''; \
	expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+h,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,+cdp,../:,+cdp,./:"; \
	fi; \
	rm -f $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX || :; \
	$(LINK_SO_A) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
link_app.hpux:
	@if $(DETECT_GNU_LD); then $(DO_GNU_APP); else \
	LDFLAGS="$(CFLAGS) -Wl,+s,+cdp,../:,+cdp,./:,+b,$(LIBRPATH)"; \
	fi; \
	$(LINK_APP)

link_o.aix:
	@ $(CALC_VERSIONS); \
	OBJECT_MODE=`expr "x$(SHARED_LDFLAGS)" : 'x\-[a-z]*\(64\)'` || :; \
	OBJECT_MODE=$${OBJECT_MODE:-32}; export OBJECT_MODE; \
	SHLIB=lib$(LIBNAME).so; \
	SHLIB_SUFFIX=; \
	ALLSYMSFLAGS=''; \
	NOALLSYMSFLAGS=''; \
	SHAREDFLAGS='$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-bexpall,-bnolibpath,-bM:SRE'; \
	$(LINK_SO_O);
link_a.aix:
	@ $(CALC_VERSIONS); \
	OBJECT_MODE=`expr "x$(SHARED_LDFLAGS)" : 'x\-[a-z]*\(64\)'` || : ; \
	OBJECT_MODE=$${OBJECT_MODE:-32}; export OBJECT_MODE; \
	SHLIB=lib$(LIBNAME).so; \
	SHLIB_SUFFIX=; \
	ALLSYMSFLAGS='-bnogc'; \
	NOALLSYMSFLAGS=''; \
	SHAREDFLAGS='$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-bexpall,-bnolibpath,-bM:SRE'; \
	$(LINK_SO_A_VIA_O)
link_app.aix:
	LDFLAGS="$(CFLAGS) -Wl,-brtl,-blibpath:$(LIBRPATH):$${LIBPATH:-/usr/lib:/lib}"; \
	$(LINK_APP)

link_o.reliantunix:
	@ $(CALC_VERSIONS); \
	SHLIB=lib$(LIBNAME).so; \
	SHLIB_SUFFIX=; \
	ALLSYMSFLAGS=; \
	NOALLSYMSFLAGS=''; \
	SHAREDFLAGS='$(CFLAGS) -G'; \
	$(LINK_SO_O)
link_a.reliantunix:
	@ $(CALC_VERSIONS); \
	SHLIB=lib$(LIBNAME).so; \
	SHLIB_SUFFIX=; \
	ALLSYMSFLAGS=; \
	NOALLSYMSFLAGS=''; \
	SHAREDFLAGS='$(CFLAGS) -G'; \
	$(LINK_SO_A_UNPACKED)
link_app.reliantunix:
	$(LINK_APP)

# Targets to build symbolic links when needed
symlink.gnu symlink.solaris symlink.svr3 symlink.svr5 symlink.irix \
symlink.aix symlink.reliantunix:
	@ $(CALC_VERSIONS); \
	SHLIB=lib$(LIBNAME).so; \
	$(SYMLINK_SO)
symlink.darwin:
	@ $(CALC_VERSIONS); \
	SHLIB=lib$(LIBNAME); \
	SHLIB_SUFFIX=.dylib; \
	$(SYMLINK_SO)
symlink.hpux:
	@ $(CALC_VERSIONS); \
	SHLIB=lib$(LIBNAME).sl; \
	expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
	$(SYMLINK_SO)
# The following lines means those specific architectures do no symlinks
symlink.cygwin symlink.alpha-osf1 symlink.tru64 symlink.tru64-rpath symlink.beos:

# Compatibility targets
link_o.bsd-gcc-shared link_o.linux-shared link_o.gnu-shared: link_o.gnu
link_a.bsd-gcc-shared link_a.linux-shared link_a.gnu-shared: link_a.gnu
link_app.bsd-gcc-shared link_app.linux-shared link_app.gnu-shared: link_app.gnu
symlink.bsd-gcc-shared symlink.bsd-shared symlink.linux-shared symlink.gnu-shared: symlink.gnu
link_o.bsd-shared: link_o.bsd
link_a.bsd-shared: link_a.bsd
link_app.bsd-shared: link_app.bsd
link_o.darwin-shared: link_o.darwin
link_a.darwin-shared: link_a.darwin
link_app.darwin-shared: link_app.darwin
symlink.darwin-shared: symlink.darwin
link_o.cygwin-shared: link_o.cygwin
link_a.cygwin-shared: link_a.cygwin
link_app.cygwin-shared: link_app.cygwin
symlink.cygwin-shared: symlink.cygwin
link_o.alpha-osf1-shared: link_o.alpha-osf1
link_a.alpha-osf1-shared: link_a.alpha-osf1
link_app.alpha-osf1-shared: link_app.alpha-osf1
symlink.alpha-osf1-shared: symlink.alpha-osf1
link_o.tru64-shared: link_o.tru64
link_a.tru64-shared: link_a.tru64
link_app.tru64-shared: link_app.tru64
symlink.tru64-shared: symlink.tru64
link_o.tru64-shared-rpath: link_o.tru64-rpath
link_a.tru64-shared-rpath: link_a.tru64-rpath
link_app.tru64-shared-rpath: link_app.tru64-rpath
symlink.tru64-shared-rpath: symlink.tru64-rpath
link_o.solaris-shared: link_o.solaris
link_a.solaris-shared: link_a.solaris
link_app.solaris-shared: link_app.solaris
symlink.solaris-shared: symlink.solaris
link_o.svr3-shared: link_o.svr3
link_a.svr3-shared: link_a.svr3
link_app.svr3-shared: link_app.svr3
symlink.svr3-shared: symlink.svr3
link_o.svr5-shared: link_o.svr5
link_a.svr5-shared: link_a.svr5
link_app.svr5-shared: link_app.svr5
symlink.svr5-shared: symlink.svr5
link_o.irix-shared: link_o.irix
link_a.irix-shared: link_a.irix
link_app.irix-shared: link_app.irix
symlink.irix-shared: symlink.irix
link_o.hpux-shared: link_o.hpux
link_a.hpux-shared: link_a.hpux
link_app.hpux-shared: link_app.hpux
symlink.hpux-shared: symlink.hpux
link_o.aix-shared: link_o.aix
link_a.aix-shared: link_a.aix
link_app.aix-shared: link_app.aix
symlink.aix-shared: symlink.aix
link_o.reliantunix-shared: link_o.reliantunix
link_a.reliantunix-shared: link_a.reliantunix
link_app.reliantunix-shared: link_app.reliantunix
symlink.reliantunix-shared: symlink.reliantunix
link_o.beos-shared: link_o.beos
link_a.beos-shared: link_a.beos
link_app.beos-shared: link_app.gnu
symlink.beos-shared: symlink.beos