Rethink the uplink / applink story
[openssl.git] / Makefile.shared
1 #
2 # Helper makefile to link shared libraries in a portable way.
3 # This is much simpler than libtool, and hopefully not too error-prone.
4 #
5 # The following variables need to be set on the command line to build
6 # properly
7
8 # CC contains the current compiler.  This one MUST be defined
9 CC=cc
10 CFLAGS=$(CFLAG)
11 # LDFLAGS contains flags to be used when temporary object files (when building
12 # shared libraries) are created, or when an application is linked.
13 # SHARED_LDFLAGS contains flags to be used when the shared library is created.
14 LDFLAGS=$(LDFLAG)
15 SHARED_LDFLAGS=$(SHARED_LDFLAG)
16
17 # SHARED_RCFLAGS are flags used with windres, i.e. when build for Cygwin
18 # or Mingw.
19 SHARED_RCFLAGS=$(SHARED_RCFLAG)
20
21 NM=nm
22
23 # LIBNAME contains just the name of the library, without prefix ("lib"
24 # on Unix, "cyg" for certain forms under Cygwin...) or suffix (.a, .so,
25 # .dll, ...).  This one MUST have a value when using this makefile to
26 # build shared libraries.
27 # For example, to build libfoo.so, you need to do the following:
28 #LIBNAME=foo
29 LIBNAME=
30
31 # APPNAME contains just the name of the application, without suffix (""
32 # on Unix, ".exe" on Windows, ...).  This one MUST have a value when using
33 # this makefile to build applications.
34 # For example, to build foo, you need to do the following:
35 #APPNAME=foo
36 APPNAME=
37
38 # DSTDIR is the directory where the built file should end up in.
39 DSTDIR=.
40
41 # SRCDIR is the top directory of the source tree.
42 SRCDIR=.
43
44 # OBJECTS contains all the object files to link together into the application.
45 # This must contain at least one object file.
46 #OBJECTS=foo.o
47 OBJECTS=
48
49 # LIBEXTRAS contains extra modules to link together with the library.
50 # For example, if a second library, say libbar.a needs to be linked into
51 # libfoo.so, you need to do the following:
52 #LIBEXTRAS=libbar.a
53 # Note that this MUST be used when using the link_o targets, to hold the
54 # names of all object files that go into the target library.
55 LIBEXTRAS=
56
57 # LIBVERSION contains the current version of the library.
58 # For example, to build libfoo.so.1.2, you need to do the following:
59 #LIBVERSION=1.2
60 LIBVERSION=
61
62 # LIBCOMPATVERSIONS contains the compatibility versions (a list) of
63 # the library.  They MUST be in decreasing order.
64 # For example, if libfoo.so.1.2.1 is backward compatible with libfoo.so.1.2
65 # and libfoo.so.1, you need to do the following:
66 #LIBCOMPATVERSIONS=1.2 1
67 # Note that on systems that use sonames, the last number will appear as
68 # part of it.
69 # It's also possible, for systems that support it (Tru64, for example),
70 # to add extra compatibility info with more precision, by adding a second
71 # list of versions, separated from the first with a semicolon, like this:
72 #LIBCOMPATVERSIONS=1.2 1;1.2.0 1.1.2 1.1.1 1.1.0 1.0.0
73 LIBCOMPATVERSIONS=
74
75 # LIBDEPS contains all the flags necessary to cover all necessary
76 # dependencies to other libraries.
77 LIBDEPS=
78
79 #------------------------------------------------------------------------------
80 # The rest is private to this makefile.
81
82 SET_X=:
83 #SET_X=set -x
84
85 top:
86         echo "Trying to use this makefile interactively?  Don't."
87
88 CALC_VERSIONS=  \
89         SHLIB_COMPAT=; SHLIB_SOVER=; \
90         if [ -n "$(LIBVERSION)$(LIBCOMPATVERSIONS)" ]; then \
91                 prev=""; \
92                 for v in `echo "$(LIBVERSION) $(LIBCOMPATVERSIONS)" | cut -d';' -f1`; do \
93                         SHLIB_SOVER_NODOT=$$v; \
94                         SHLIB_SOVER=.$$v; \
95                         if [ -n "$$prev" ]; then \
96                                 SHLIB_COMPAT="$$SHLIB_COMPAT .$$prev"; \
97                         fi; \
98                         prev=$$v; \
99                 done; \
100         fi
101
102 LINK_APP=       \
103   ( $(SET_X);   \
104     LIBDEPS="$${LIBDEPS:-$(LIBDEPS)}"; \
105     LDCMD="$${LDCMD:-$(CC)}"; LDFLAGS="$${LDFLAGS:-$(CFLAGS) $(LDFLAGS)}"; \
106     LIBPATH=`for x in $$LIBDEPS; do echo $$x; done | sed -e 's/^ *-L//;t' -e d | uniq`; \
107     LIBPATH=`echo $$LIBPATH | sed -e 's/ /:/g'`; \
108     echo LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
109         $${LDCMD} $${LDFLAGS} -o $${APPNAME:=$(APPNAME)} $(OBJECTS) $${LIBDEPS}; \
110     LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
111     $${LDCMD} $${LDFLAGS} -o $${APPNAME:=$(APPNAME)} $(OBJECTS) $${LIBDEPS} )
112
113 LINK_SO=        \
114   ( $(SET_X);   \
115     LIBDEPS="$${LIBDEPS:-$(LIBDEPS)}"; \
116     SHAREDCMD="$${SHAREDCMD:-$(CC)}"; \
117     SHAREDFLAGS="$${SHAREDFLAGS:-$(CFLAGS) $(SHARED_LDFLAGS)}"; \
118     LIBPATH=`for x in $$LIBDEPS; do echo $$x; done | sed -e 's/^ *-L//;t' -e d | uniq`; \
119     LIBPATH=`echo $$LIBPATH | sed -e 's/ /:/g'`; \
120     echo LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
121          $${SHAREDCMD} $${SHAREDFLAGS} \
122              -o $(DSTDIR)/$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX \
123              $$ALLSYMSFLAGS $$SHOBJECTS $$NOALLSYMSFLAGS $$LIBDEPS; \
124     LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
125     $${SHAREDCMD} $${SHAREDFLAGS} \
126         -o $(DSTDIR)/$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX \
127         $$ALLSYMSFLAGS $$SHOBJECTS $$NOALLSYMSFLAGS $$LIBDEPS \
128   ) && $(SYMLINK_SO)
129
130 SYMLINK_SO=     \
131         if [ -n "$$INHIBIT_SYMLINKS" ]; then :; else \
132                 prev=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX; \
133                 if [ -n "$$SHLIB_COMPAT" ]; then \
134                         for x in $$SHLIB_COMPAT; do \
135                                 ( $(SET_X); rm -f $(DSTDIR)/$$SHLIB$$x$$SHLIB_SUFFIX; \
136                                   ln -s $$prev $(DSTDIR)/$$SHLIB$$x$$SHLIB_SUFFIX ); \
137                                 prev=$$SHLIB$$x$$SHLIB_SUFFIX; \
138                         done; \
139                 fi; \
140                 if [ -n "$$SHLIB_SOVER" ]; then \
141                         ( $(SET_X); rm -f $(DSTDIR)/$$SHLIB$$SHLIB_SUFFIX; \
142                           ln -s $$prev $(DSTDIR)/$$SHLIB$$SHLIB_SUFFIX ); \
143                 fi; \
144         fi
145
146 LINK_SO_A=      SHOBJECTS="$(DSTDIR)/lib$(LIBNAME).a $(LIBEXTRAS)"; $(LINK_SO)
147 LINK_SO_O=      SHOBJECTS="$(LIBEXTRAS)"; $(LINK_SO)
148
149 LINK_SO_A_VIA_O=        \
150   SHOBJECTS=$(DSTDIR)/lib$(LIBNAME).o; \
151   ALL=$$ALLSYMSFLAGS; ALLSYMSFLAGS=; NOALLSYMSFLAGS=; \
152   ( echo ld $(LDFLAGS) -r -o $$SHOBJECTS.o $$ALL lib$(LIBNAME).a $(LIBEXTRAS); \
153     ld $(LDFLAGS) -r -o $$SHOBJECTS.o $$ALL $(DSTDIR)/lib$(LIBNAME).a $(LIBEXTRAS) ); \
154   $(LINK_SO) && ( echo rm -f $$SHOBJECTS; rm -f $$SHOBJECTS )
155
156 LINK_SO_A_UNPACKED=     \
157   UNPACKDIR=link_tmp.$$$$; rm -rf $$UNPACKDIR; mkdir $$UNPACKDIR; \
158   (cd $$UNPACKDIR; ar x ../$(DSTDIR)/lib$(LIBNAME).a) && \
159   ([ -z "$(LIBEXTRAS)" ] || cp $(LIBEXTRAS) $$UNPACKDIR) && \
160   SHOBJECTS=$$UNPACKDIR/*.o; \
161   $(LINK_SO) && rm -rf $$UNPACKDIR
162
163 DETECT_GNU_LD=($(CC) -Wl,-V /dev/null 2>&1 | grep '^GNU ld' )>/dev/null
164
165 DO_GNU_SO=$(CALC_VERSIONS); \
166         SHLIB=lib$(LIBNAME).so; \
167         SHLIB_SUFFIX=; \
168         ALLSYMSFLAGS='-Wl,--whole-archive'; \
169         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
170         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-Bsymbolic -Wl,-soname=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"
171
172 DO_GNU_APP=LDFLAGS="$(CFLAGS) $(LDFLAGS) -Wl,-rpath,$(LIBRPATH)"
173
174 #This is rather special.  It's a special target with which one can link
175 #applications without bothering with any features that have anything to
176 #do with shared libraries, for example when linking against static
177 #libraries.  It's mostly here to avoid a lot of conditionals everywhere
178 #else...
179 link_app.:
180         $(LINK_APP)
181
182 link_o.gnu:
183         @ $(DO_GNU_SO); $(LINK_SO_O)
184 link_a.gnu:
185         @ $(DO_GNU_SO); $(LINK_SO_A)
186 link_app.gnu:
187         @ $(DO_GNU_APP); $(LINK_APP)
188
189 link_a.linux-shared:
190         @if [ $(LIBNAME) != "crypto" -a $(LIBNAME) != "ssl" ]; then $(DO_GNU_SO); else \
191         $(PERL) $(SRCDIR)/util/mkdef.pl $(LIBNAME) linux >$(LIBNAME).map; \
192         $(CALC_VERSIONS); \
193         SHLIB=lib$(LIBNAME).so; \
194         SHLIB_SUFFIX=; \
195         ALLSYMSFLAGS='-Wl,--whole-archive,--version-script=$(LIBNAME).map'; \
196         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
197         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-Bsymbolic -Wl,-soname=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
198         fi; $(LINK_SO_A)
199
200 link_o.bsd:
201         @if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
202         $(CALC_VERSIONS); \
203         SHLIB=lib$(LIBNAME).so; \
204         SHLIB_SUFFIX=; \
205         LIBDEPS=" "; \
206         ALLSYMSFLAGS="-Wl,-Bforcearchive"; \
207         NOALLSYMSFLAGS=; \
208         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -nostdlib"; \
209         fi; $(LINK_SO_O)
210 link_a.bsd:
211         @if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
212         $(CALC_VERSIONS); \
213         SHLIB=lib$(LIBNAME).so; \
214         SHLIB_SUFFIX=; \
215         LIBDEPS=" "; \
216         ALLSYMSFLAGS="-Wl,-Bforcearchive"; \
217         NOALLSYMSFLAGS=; \
218         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -nostdlib"; \
219         fi; $(LINK_SO_A)
220 link_app.bsd:
221         @if $(DETECT_GNU_LD); then $(DO_GNU_APP); else \
222         LDFLAGS="$(CFLAGS) $(LDFLAGS) -Wl,-rpath,$(LIBPATH)"; \
223         fi; $(LINK_APP)
224
225 # For Darwin AKA Mac OS/X (dyld)
226 # Originally link_o.darwin produced .so, because it was hard-coded
227 # in dso_dlfcn module. At later point dso_dlfcn switched to .dylib
228 # extension in order to allow for run-time linking with vendor-
229 # supplied shared libraries such as libz, so that link_o.darwin had
230 # to be harmonized with it. This caused minor controversy, because
231 # it was believed that dlopen can't be used to dynamically load
232 # .dylib-s, only so called bundle modules (ones linked with -bundle
233 # flag). The belief seems to be originating from pre-10.4 release,
234 # where dlfcn functionality was emulated by dlcompat add-on. In
235 # 10.4 dlopen was rewritten as native part of dyld and is documented
236 # to be capable of loading both dynamic libraries and bundles. In
237 # order to provide compatibility with pre-10.4 dlopen, modules are
238 # linked with -bundle flag, which makes .dylib extension misleading.
239 # It works, because dlopen is [and always was] extension-agnostic.
240 # Alternative to this heuristic approach is to develop specific
241 # MacOS X dso module relying on whichever "native" dyld interface.
242 link_o.darwin:
243         @ $(CALC_VERSIONS); \
244         SHLIB=lib$(LIBNAME); \
245         SHLIB_SUFFIX=.dylib; \
246         ALLSYMSFLAGS='-all_load'; \
247         NOALLSYMSFLAGS=''; \
248         SHAREDFLAGS="$(CFLAGS) `echo $(SHARED_LDFLAGS) | sed s/dynamiclib/bundle/`"; \
249         if [ -n "$(LIBVERSION)" ]; then \
250                 SHAREDFLAGS="$$SHAREDFLAGS -current_version $(LIBVERSION)"; \
251         fi; \
252         if [ -n "$$SHLIB_SOVER_NODOT" ]; then \
253                 SHAREDFLAGS="$$SHAREDFLAGS -compatibility_version $$SHLIB_SOVER_NODOT"; \
254         fi; \
255         $(LINK_SO_O)
256 link_a.darwin:
257         @ $(CALC_VERSIONS); \
258         SHLIB=lib$(LIBNAME); \
259         SHLIB_SUFFIX=.dylib; \
260         ALLSYMSFLAGS='-all_load'; \
261         NOALLSYMSFLAGS=''; \
262         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS)"; \
263         if [ -n "$(LIBVERSION)" ]; then \
264                 SHAREDFLAGS="$$SHAREDFLAGS -current_version $(LIBVERSION)"; \
265         fi; \
266         if [ -n "$$SHLIB_SOVER_NODOT" ]; then \
267                 SHAREDFLAGS="$$SHAREDFLAGS -compatibility_version $$SHLIB_SOVER_NODOT"; \
268         fi; \
269         SHAREDFLAGS="$$SHAREDFLAGS -install_name $(INSTALLTOP)/$(LIBDIR)/$$SHLIB$(SHLIB_EXT)"; \
270         $(LINK_SO_A)
271 link_app.darwin:        # is there run-path on darwin?
272         $(LINK_APP)
273
274 link_o.cygwin:
275         @ $(CALC_VERSIONS); \
276         INHIBIT_SYMLINKS=yes; \
277         SHLIB=cyg$(LIBNAME); \
278         base=-Wl,--enable-auto-image-base; \
279         deffile=; \
280         if expr $(PLATFORM) : 'mingw' > /dev/null; then \
281                 SHLIB=$(LIBNAME)eay32; base=; \
282                 if test -f $(LIBNAME)eay32.def; then \
283                         deffile=$(LIBNAME)eay32.def; \
284                 fi; \
285         fi; \
286         SHLIB_SUFFIX=.dll; \
287         LIBVERSION="$(LIBVERSION)"; \
288         SHLIB_SOVER=${LIBVERSION:+"-$(LIBVERSION)"}; \
289         ALLSYMSFLAGS='-Wl,--whole-archive'; \
290         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
291         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared $$base $$deffile -Wl,-Bsymbolic"; \
292         $(LINK_SO_O)
293 #for mingw target if def-file is in use dll-name should match library-name
294 link_a.cygwin:
295         @ $(CALC_VERSIONS); \
296         INHIBIT_SYMLINKS=yes; \
297         SHLIB=cyg$(LIBNAME); SHLIB_SOVER=-$(LIBVERSION); SHLIB_SUFFIX=.dll; \
298         dll_name=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX; extras=; \
299         base=-Wl,--enable-auto-image-base; \
300         if expr $(PLATFORM) : 'mingw' > /dev/null; then \
301                 case $(LIBNAME) in \
302                         crypto) SHLIB=libeay;; \
303                         ssl) SHLIB=ssleay;; \
304                 esac; \
305                 SHLIB_SOVER=32; \
306                 extras="$(LIBNAME).def"; \
307                 $(PERL) $(SRCDIR)/util/mkdef.pl 32 $$SHLIB > $$extras; \
308                 base=; [ $(LIBNAME) = "crypto" ] && base=-Wl,--image-base,0x63000000; \
309         fi; \
310         dll_name=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX; \
311         echo "$(PERL) $(SRCDIR)/util/mkrc.pl $$dll_name |" \
312                      "$(CROSS_COMPILE)windres $(SHARED_RCFLAGS) -o rc.o"; \
313         $(PERL) $(SRCDIR)/util/mkrc.pl $$dll_name | \
314                 $(CROSS_COMPILE)windres $(SHARED_RCFLAGS) -o rc.o; \
315         extras="$$extras rc.o"; \
316         ALLSYMSFLAGS='-Wl,--whole-archive'; \
317         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
318         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared $$base -Wl,-Bsymbolic -Wl,--out-implib,lib$(LIBNAME).dll.a $$extras"; \
319         $(LINK_SO_A) || exit 1; \
320         rm $$extras
321 link_app.cygwin:
322         $(LINK_APP)
323
324 link_o.alpha-osf1:
325         @ if $(DETECT_GNU_LD); then \
326                 $(DO_GNU_SO); \
327         else \
328                 SHLIB=lib$(LIBNAME).so; \
329                 SHLIB_SUFFIX=; \
330                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
331                 if [ -n "$$SHLIB_HIST" ]; then \
332                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
333                 else \
334                         SHLIB_HIST="$(LIBVERSION)"; \
335                 fi; \
336                 SHLIB_SOVER=; \
337                 ALLSYMSFLAGS='-all'; \
338                 NOALLSYMSFLAGS='-none'; \
339                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-B,symbolic"; \
340                 if [ -n "$$SHLIB_HIST" ]; then \
341                         SHAREDFLAGS="$$SHAREDFLAGS -set_version $$SHLIB_HIST"; \
342                 fi; \
343         fi; \
344         $(LINK_SO_O)
345 link_a.alpha-osf1:
346         @ if $(DETECT_GNU_LD); then \
347                 $(DO_GNU_SO); \
348         else \
349                 SHLIB=lib$(LIBNAME).so; \
350                 SHLIB_SUFFIX=; \
351                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
352                 if [ -n "$$SHLIB_HIST" ]; then \
353                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
354                 else \
355                         SHLIB_HIST="$(LIBVERSION)"; \
356                 fi; \
357                 SHLIB_SOVER=; \
358                 ALLSYMSFLAGS='-all'; \
359                 NOALLSYMSFLAGS='-none'; \
360                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-B,symbolic"; \
361                 if [ -n "$$SHLIB_HIST" ]; then \
362                         SHAREDFLAGS="$$SHAREDFLAGS -set_version $$SHLIB_HIST"; \
363                 fi; \
364         fi; \
365         $(LINK_SO_A)
366 link_app.alpha-osf1:
367         @if $(DETECT_GNU_LD); then \
368                 $(DO_GNU_APP); \
369         else \
370                 LDFLAGS="$(CFLAGS) $(LDFLAGS) -rpath $(LIBRPATH)"; \
371         fi; \
372         $(LINK_APP)
373
374 link_o.solaris:
375         @ if $(DETECT_GNU_LD); then \
376                 $(DO_GNU_SO); \
377         else \
378                 $(CALC_VERSIONS); \
379                 SHLIB=lib$(LIBNAME).so; \
380                 SHLIB_SUFFIX=; \
381                 ALLSYMSFLAGS="-Wl,-z,allextract"; \
382                 NOALLSYMSFLAGS="-Wl,-z,defaultextract"; \
383                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-Bsymbolic"; \
384         fi; \
385         $(LINK_SO_O)
386 link_a.solaris:
387         @ if $(DETECT_GNU_LD); then \
388                 $(DO_GNU_SO); \
389         else \
390                 $(CALC_VERSIONS); \
391                 SHLIB=lib$(LIBNAME).so; \
392                 SHLIB_SUFFIX=;\
393                 if [ $(LIBNAME) != "crypto" -a $(LIBNAME) != "ssl" ]; then \
394                         ALLSYMSFLAGS="-Wl,-z,allextract"; \
395                 else \
396                         $(PERL) $(SRCDIR)/util/mkdef.pl $(LIBNAME) linux >$(LIBNAME).map; \
397                         ALLSYMSFLAGS="-Wl,-z,allextract,-M,$(LIBNAME).map"; \
398                 fi; \
399                 NOALLSYMSFLAGS="-Wl,-z,defaultextract"; \
400                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-Bsymbolic"; \
401         fi; \
402         $(LINK_SO_A)
403 link_app.solaris:
404         @ if $(DETECT_GNU_LD); then \
405                 $(DO_GNU_APP); \
406         else \
407                 LDFLAGS="$(CFLAGS) $(LDFLAGS) -R $(LIBRPATH)"; \
408         fi; \
409         $(LINK_APP)
410
411 # OpenServer 5 native compilers used
412 link_o.svr3:
413         @ if $(DETECT_GNU_LD); then \
414                 $(DO_GNU_SO); \
415         else \
416                 $(CALC_VERSIONS); \
417                 SHLIB=lib$(LIBNAME).so; \
418                 SHLIB_SUFFIX=; \
419                 ALLSYMSFLAGS=''; \
420                 NOALLSYMSFLAGS=''; \
421                 SHAREDFLAGS="$(CFLAGS) -G -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
422         fi; \
423         $(LINK_SO_O)
424 link_a.svr3:
425         @ if $(DETECT_GNU_LD); then \
426                 $(DO_GNU_SO); \
427         else \
428                 $(CALC_VERSIONS); \
429                 SHLIB=lib$(LIBNAME).so; \
430                 SHLIB_SUFFIX=; \
431                 ALLSYMSFLAGS=''; \
432                 NOALLSYMSFLAGS=''; \
433                 SHAREDFLAGS="$(CFLAGS) -G -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
434         fi; \
435         $(LINK_SO_A_UNPACKED)
436 link_app.svr3:
437         @$(DETECT_GNU_LD) && $(DO_GNU_APP); \
438         $(LINK_APP)
439
440 # UnixWare 7 and OpenUNIX 8 native compilers used
441 link_o.svr5:
442         @ if $(DETECT_GNU_LD); then \
443                 $(DO_GNU_SO); \
444         else \
445                 $(CALC_VERSIONS); \
446                 SHARE_FLAG='-G'; \
447                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
448                 SHLIB=lib$(LIBNAME).so; \
449                 SHLIB_SUFFIX=; \
450                 ALLSYMSFLAGS=''; \
451                 NOALLSYMSFLAGS=''; \
452                 SHAREDFLAGS="$(CFLAGS) $${SHARE_FLAG} -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
453         fi; \
454         $(LINK_SO_O)
455 link_a.svr5:
456         @ if $(DETECT_GNU_LD); then \
457                 $(DO_GNU_SO); \
458         else \
459                 $(CALC_VERSIONS); \
460                 SHARE_FLAG='-G'; \
461                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
462                 SHLIB=lib$(LIBNAME).so; \
463                 SHLIB_SUFFIX=; \
464                 ALLSYMSFLAGS=''; \
465                 NOALLSYMSFLAGS=''; \
466                 SHAREDFLAGS="$(CFLAGS) $${SHARE_FLAG} -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
467         fi; \
468         $(LINK_SO_A_UNPACKED)
469 link_app.svr5:
470         @$(DETECT_GNU_LD) && $(DO_GNU_APP); \
471         $(LINK_APP)
472
473 link_o.irix:
474         @ if $(DETECT_GNU_LD); then \
475                 $(DO_GNU_SO); \
476         else \
477                 $(CALC_VERSIONS); \
478                 SHLIB=lib$(LIBNAME).so; \
479                 SHLIB_SUFFIX=; \
480                 MINUSWL=""; \
481                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSWL="-Wl,"; \
482                 ALLSYMSFLAGS="$${MINUSWL}-all"; \
483                 NOALLSYMSFLAGS="$${MINUSWL}-none"; \
484                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-soname,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,-B,symbolic"; \
485         fi; \
486         $(LINK_SO_O)
487 link_a.irix:
488         @ if $(DETECT_GNU_LD); then \
489                 $(DO_GNU_SO); \
490         else \
491                 $(CALC_VERSIONS); \
492                 SHLIB=lib$(LIBNAME).so; \
493                 SHLIB_SUFFIX=; \
494                 MINUSWL=""; \
495                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSWL="-Wl,"; \
496                 ALLSYMSFLAGS="$${MINUSWL}-all"; \
497                 NOALLSYMSFLAGS="$${MINUSWL}-none"; \
498                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-soname,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,-B,symbolic"; \
499         fi; \
500         $(LINK_SO_A)
501 link_app.irix:
502         @LDFLAGS="$(CFLAGS) $(LDFLAGS) -Wl,-rpath,$(LIBRPATH)"; \
503         $(LINK_APP)
504
505 # 32-bit PA-RISC HP-UX embeds the -L pathname of libs we link with, so
506 # we compensate for it with +cdp ../: and +cdp ./:. Yes, these rewrite
507 # rules imply that we can only link one level down in catalog structure,
508 # but that's what takes place for the moment of this writing. +cdp option
509 # was introduced in HP-UX 11.x and applies in 32-bit PA-RISC link
510 # editor context only [it's simply ignored in other cases, which are all
511 # ELFs by the way].
512 #
513 link_o.hpux:
514         @if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
515         $(CALC_VERSIONS); \
516         SHLIB=lib$(LIBNAME).sl; \
517         expr "$(CFLAGS)" : '.*DSO_DLFCN' > /dev/null && SHLIB=lib$(LIBNAME).so; \
518         SHLIB_SUFFIX=; \
519         ALLSYMSFLAGS='-Wl,-Fl'; \
520         NOALLSYMSFLAGS=''; \
521         expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
522         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+h,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,+cdp,../:,+cdp,./:"; \
523         fi; \
524         rm -f $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX || :; \
525         $(LINK_SO_O) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
526 link_a.hpux:
527         @if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
528         $(CALC_VERSIONS); \
529         SHLIB=lib$(LIBNAME).sl; \
530         expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
531         SHLIB_SUFFIX=; \
532         ALLSYMSFLAGS='-Wl,-Fl'; \
533         NOALLSYMSFLAGS=''; \
534         expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
535         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+h,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,+cdp,../:,+cdp,./:"; \
536         fi; \
537         rm -f $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX || :; \
538         $(LINK_SO_A) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
539 link_app.hpux:
540         @if $(DETECT_GNU_LD); then $(DO_GNU_APP); else \
541         LDFLAGS="$(CFLAGS) $(LDFLAGS) -Wl,+s,+cdp,../:,+cdp,./:,+b,$(LIBRPATH)"; \
542         fi; \
543         $(LINK_APP)
544
545 link_o.aix:
546         @ $(CALC_VERSIONS); \
547         OBJECT_MODE=`expr "x$(SHARED_LDFLAGS)" : 'x\-[a-z]*\(64\)'` || :; \
548         OBJECT_MODE=$${OBJECT_MODE:-32}; export OBJECT_MODE; \
549         SHLIB=lib$(LIBNAME).so; \
550         SHLIB_SUFFIX=; \
551         ALLSYMSFLAGS=''; \
552         NOALLSYMSFLAGS=''; \
553         SHAREDFLAGS='$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-bexpall,-bnolibpath,-bM:SRE'; \
554         $(LINK_SO_O);
555 link_a.aix:
556         @ $(CALC_VERSIONS); \
557         OBJECT_MODE=`expr "x$(SHARED_LDFLAGS)" : 'x\-[a-z]*\(64\)'` || : ; \
558         OBJECT_MODE=$${OBJECT_MODE:-32}; export OBJECT_MODE; \
559         SHLIB=lib$(LIBNAME).so; \
560         SHLIB_SUFFIX=; \
561         ALLSYMSFLAGS='-bnogc'; \
562         NOALLSYMSFLAGS=''; \
563         SHAREDFLAGS='$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-bexpall,-bnolibpath,-bM:SRE'; \
564         $(LINK_SO_A_VIA_O)
565 link_app.aix:
566         LDFLAGS="$(CFLAGS) $(LDFLAGS) -Wl,-brtl,-blibpath:$(LIBRPATH):$${LIBPATH:-/usr/lib:/lib}"; \
567         $(LINK_APP)
568
569
570 # Targets to build symbolic links when needed
571 symlink.gnu symlink.solaris symlink.svr3 symlink.svr5 symlink.irix \
572 symlink.aix:
573         @ $(CALC_VERSIONS); \
574         SHLIB=lib$(LIBNAME).so; \
575         $(SYMLINK_SO)
576 symlink.darwin:
577         @ $(CALC_VERSIONS); \
578         SHLIB=lib$(LIBNAME); \
579         SHLIB_SUFFIX=.dylib; \
580         $(SYMLINK_SO)
581 symlink.hpux:
582         @ $(CALC_VERSIONS); \
583         SHLIB=lib$(LIBNAME).sl; \
584         expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
585         $(SYMLINK_SO)
586 # The following lines means those specific architectures do no symlinks
587 symlink.cygwin symlink.alpha-osf1 symlink.tru64 symlink.tru64-rpath:
588
589 # Compatibility targets
590 link_o.bsd-gcc-shared link_o.linux-shared link_o.gnu-shared: link_o.gnu
591 link_a.bsd-gcc-shared link_a.gnu-shared: link_a.gnu
592 link_app.bsd-gcc-shared link_app.linux-shared link_app.gnu-shared: link_app.gnu
593 symlink.bsd-gcc-shared symlink.bsd-shared symlink.linux-shared symlink.gnu-shared: symlink.gnu
594 link_o.bsd-shared: link_o.bsd
595 link_a.bsd-shared: link_a.bsd
596 link_app.bsd-shared: link_app.bsd
597 link_o.darwin-shared: link_o.darwin
598 link_a.darwin-shared: link_a.darwin
599 link_app.darwin-shared: link_app.darwin
600 symlink.darwin-shared: symlink.darwin
601 link_o.cygwin-shared: link_o.cygwin
602 link_a.cygwin-shared: link_a.cygwin
603 link_app.cygwin-shared: link_app.cygwin
604 symlink.cygwin-shared: symlink.cygwin
605 link_o.alpha-osf1-shared: link_o.alpha-osf1
606 link_a.alpha-osf1-shared: link_a.alpha-osf1
607 link_app.alpha-osf1-shared: link_app.alpha-osf1
608 symlink.alpha-osf1-shared: symlink.alpha-osf1
609 link_o.tru64-shared: link_o.tru64
610 link_a.tru64-shared: link_a.tru64
611 link_app.tru64-shared: link_app.tru64
612 symlink.tru64-shared: symlink.tru64
613 link_o.tru64-shared-rpath: link_o.tru64-rpath
614 link_a.tru64-shared-rpath: link_a.tru64-rpath
615 link_app.tru64-shared-rpath: link_app.tru64-rpath
616 symlink.tru64-shared-rpath: symlink.tru64-rpath
617 link_o.solaris-shared: link_o.solaris
618 link_a.solaris-shared: link_a.solaris
619 link_app.solaris-shared: link_app.solaris
620 symlink.solaris-shared: symlink.solaris
621 link_o.svr3-shared: link_o.svr3
622 link_a.svr3-shared: link_a.svr3
623 link_app.svr3-shared: link_app.svr3
624 symlink.svr3-shared: symlink.svr3
625 link_o.svr5-shared: link_o.svr5
626 link_a.svr5-shared: link_a.svr5
627 link_app.svr5-shared: link_app.svr5
628 symlink.svr5-shared: symlink.svr5
629 link_o.irix-shared: link_o.irix
630 link_a.irix-shared: link_a.irix
631 link_app.irix-shared: link_app.irix
632 symlink.irix-shared: symlink.irix
633 link_o.hpux-shared: link_o.hpux
634 link_a.hpux-shared: link_a.hpux
635 link_app.hpux-shared: link_app.hpux
636 symlink.hpux-shared: symlink.hpux
637 link_o.aix-shared: link_o.aix
638 link_a.aix-shared: link_a.aix
639 link_app.aix-shared: link_app.aix
640 symlink.aix-shared: symlink.aix