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