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