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 $$extras
 321 link_app.cygwin:
 322         @if expr "$(CFLAGS)" : '.*OPENSSL_USE_APPLINK' > /dev/null; then \
 323                 LIBDEPS="$(SRCDIR)/crypto/applink.o $${LIBDEPS:-$(LIBDEPS)}"; \
 324                 export LIBDEPS; \
 325         fi; \
 326         $(LINK_APP)
 327
 328 link_o.alpha-osf1:
 329         @ if $(DETECT_GNU_LD); then \
 330                 $(DO_GNU_SO); \
 331         else \
 332                 SHLIB=lib$(LIBNAME).so; \
 333                 SHLIB_SUFFIX=; \
 334                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 335                 if [ -n "$$SHLIB_HIST" ]; then \
 336                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 337                 else \
 338                         SHLIB_HIST="$(LIBVERSION)"; \
 339                 fi; \
 340                 SHLIB_SOVER=; \
 341                 ALLSYMSFLAGS='-all'; \
 342                 NOALLSYMSFLAGS='-none'; \
 343                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-B,symbolic"; \
 344                 if [ -n "$$SHLIB_HIST" ]; then \
 345                         SHAREDFLAGS="$$SHAREDFLAGS -set_version $$SHLIB_HIST"; \
 346                 fi; \
 347         fi; \
 348         $(LINK_SO_O)
 349 link_a.alpha-osf1:
 350         @ if $(DETECT_GNU_LD); then \
 351                 $(DO_GNU_SO); \
 352         else \
 353                 SHLIB=lib$(LIBNAME).so; \
 354                 SHLIB_SUFFIX=; \
 355                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 356                 if [ -n "$$SHLIB_HIST" ]; then \
 357                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 358                 else \
 359                         SHLIB_HIST="$(LIBVERSION)"; \
 360                 fi; \
 361                 SHLIB_SOVER=; \
 362                 ALLSYMSFLAGS='-all'; \
 363                 NOALLSYMSFLAGS='-none'; \
 364                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-B,symbolic"; \
 365                 if [ -n "$$SHLIB_HIST" ]; then \
 366                         SHAREDFLAGS="$$SHAREDFLAGS -set_version $$SHLIB_HIST"; \
 367                 fi; \
 368         fi; \
 369         $(LINK_SO_A)
 370 link_app.alpha-osf1:
 371         @if $(DETECT_GNU_LD); then \
 372                 $(DO_GNU_APP); \
 373         else \
 374                 LDFLAGS="$(CFLAGS) $(LDFLAGS) -rpath $(LIBRPATH)"; \
 375         fi; \
 376         $(LINK_APP)
 377
 378 link_o.solaris:
 379         @ if $(DETECT_GNU_LD); then \
 380                 $(DO_GNU_SO); \
 381         else \
 382                 $(CALC_VERSIONS); \
 383                 MINUSZ='-z '; \
 384                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSZ='-Wl,-z,'; \
 385                 SHLIB=lib$(LIBNAME).so; \
 386                 SHLIB_SUFFIX=; \
 387                 ALLSYMSFLAGS="$${MINUSZ}allextract"; \
 388                 NOALLSYMSFLAGS="$${MINUSZ}defaultextract"; \
 389                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-Bsymbolic"; \
 390         fi; \
 391         $(LINK_SO_O)
 392 link_a.solaris:
 393         @ if $(DETECT_GNU_LD); then \
 394                 $(DO_GNU_SO); \
 395         else \
 396                 $(CALC_VERSIONS); \
 397                 MINUSZ='-z '; \
 398                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSZ='-Wl,-z,'; \
 399                 SHLIB=lib$(LIBNAME).so; \
 400                 SHLIB_SUFFIX=;\
 401                 if [ $(LIBNAME) != "crypto" -a $(LIBNAME) != "ssl" ]; then \
 402                         ALLSYMSFLAGS="$${MINUSZ}allextract"; \
 403                 else \
 404                         $(PERL) $(SRCDIR)/util/mkdef.pl $(LIBNAME) linux >$(LIBNAME).map; \
 405                         ALLSYMSFLAGS="$${MINUSZ}allextract,-M,$(LIBNAME).map"; \
 406                 fi; \
 407                 NOALLSYMSFLAGS="$${MINUSZ}defaultextract"; \
 408                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-Bsymbolic"; \
 409         fi; \
 410         $(LINK_SO_A)
 411 link_app.solaris:
 412         @ if $(DETECT_GNU_LD); then \
 413                 $(DO_GNU_APP); \
 414         else \
 415                 LDFLAGS="$(CFLAGS) $(LDFLAGS) -R $(LIBRPATH)"; \
 416         fi; \
 417         $(LINK_APP)
 418
 419 # OpenServer 5 native compilers used
 420 link_o.svr3:
 421         @ if $(DETECT_GNU_LD); then \
 422                 $(DO_GNU_SO); \
 423         else \
 424                 $(CALC_VERSIONS); \
 425                 SHLIB=lib$(LIBNAME).so; \
 426                 SHLIB_SUFFIX=; \
 427                 ALLSYMSFLAGS=''; \
 428                 NOALLSYMSFLAGS=''; \
 429                 SHAREDFLAGS="$(CFLAGS) -G -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 430         fi; \
 431         $(LINK_SO_O)
 432 link_a.svr3:
 433         @ if $(DETECT_GNU_LD); then \
 434                 $(DO_GNU_SO); \
 435         else \
 436                 $(CALC_VERSIONS); \
 437                 SHLIB=lib$(LIBNAME).so; \
 438                 SHLIB_SUFFIX=; \
 439                 ALLSYMSFLAGS=''; \
 440                 NOALLSYMSFLAGS=''; \
 441                 SHAREDFLAGS="$(CFLAGS) -G -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 442         fi; \
 443         $(LINK_SO_A_UNPACKED)
 444 link_app.svr3:
 445         @$(DETECT_GNU_LD) && $(DO_GNU_APP); \
 446         $(LINK_APP)
 447
 448 # UnixWare 7 and OpenUNIX 8 native compilers used
 449 link_o.svr5:
 450         @ if $(DETECT_GNU_LD); then \
 451                 $(DO_GNU_SO); \
 452         else \
 453                 $(CALC_VERSIONS); \
 454                 SHARE_FLAG='-G'; \
 455                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
 456                 SHLIB=lib$(LIBNAME).so; \
 457                 SHLIB_SUFFIX=; \
 458                 ALLSYMSFLAGS=''; \
 459                 NOALLSYMSFLAGS=''; \
 460                 SHAREDFLAGS="$(CFLAGS) $${SHARE_FLAG} -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 461         fi; \
 462         $(LINK_SO_O)
 463 link_a.svr5:
 464         @ if $(DETECT_GNU_LD); then \
 465                 $(DO_GNU_SO); \
 466         else \
 467                 $(CALC_VERSIONS); \
 468                 SHARE_FLAG='-G'; \
 469                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
 470                 SHLIB=lib$(LIBNAME).so; \
 471                 SHLIB_SUFFIX=; \
 472                 ALLSYMSFLAGS=''; \
 473                 NOALLSYMSFLAGS=''; \
 474                 SHAREDFLAGS="$(CFLAGS) $${SHARE_FLAG} -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 475         fi; \
 476         $(LINK_SO_A_UNPACKED)
 477 link_app.svr5:
 478         @$(DETECT_GNU_LD) && $(DO_GNU_APP); \
 479         $(LINK_APP)
 480
 481 link_o.irix:
 482         @ if $(DETECT_GNU_LD); then \
 483                 $(DO_GNU_SO); \
 484         else \
 485                 $(CALC_VERSIONS); \
 486                 SHLIB=lib$(LIBNAME).so; \
 487                 SHLIB_SUFFIX=; \
 488                 MINUSWL=""; \
 489                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSWL="-Wl,"; \
 490                 ALLSYMSFLAGS="$${MINUSWL}-all"; \
 491                 NOALLSYMSFLAGS="$${MINUSWL}-none"; \
 492                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-soname,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,-B,symbolic"; \
 493         fi; \
 494         $(LINK_SO_O)
 495 link_a.irix:
 496         @ if $(DETECT_GNU_LD); then \
 497                 $(DO_GNU_SO); \
 498         else \
 499                 $(CALC_VERSIONS); \
 500                 SHLIB=lib$(LIBNAME).so; \
 501                 SHLIB_SUFFIX=; \
 502                 MINUSWL=""; \
 503                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSWL="-Wl,"; \
 504                 ALLSYMSFLAGS="$${MINUSWL}-all"; \
 505                 NOALLSYMSFLAGS="$${MINUSWL}-none"; \
 506                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-soname,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,-B,symbolic"; \
 507         fi; \
 508         $(LINK_SO_A)
 509 link_app.irix:
 510         @LDFLAGS="$(CFLAGS) $(LDFLAGS) -Wl,-rpath,$(LIBRPATH)"; \
 511         $(LINK_APP)
 512
 513 # 32-bit PA-RISC HP-UX embeds the -L pathname of libs we link with, so
 514 # we compensate for it with +cdp ../: and +cdp ./:. Yes, these rewrite
 515 # rules imply that we can only link one level down in catalog structure,
 516 # but that's what takes place for the moment of this writing. +cdp option
 517 # was introduced in HP-UX 11.x and applies in 32-bit PA-RISC link
 518 # editor context only [it's simply ignored in other cases, which are all
 519 # ELFs by the way].
 520 #
 521 link_o.hpux:
 522         @if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
 523         $(CALC_VERSIONS); \
 524         SHLIB=lib$(LIBNAME).sl; \
 525         expr "$(CFLAGS)" : '.*DSO_DLFCN' > /dev/null && SHLIB=lib$(LIBNAME).so; \
 526         SHLIB_SUFFIX=; \
 527         ALLSYMSFLAGS='-Wl,-Fl'; \
 528         NOALLSYMSFLAGS=''; \
 529         expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
 530         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+h,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,+cdp,../:,+cdp,./:"; \
 531         fi; \
 532         rm -f $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX || :; \
 533         $(LINK_SO_O) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
 534 link_a.hpux:
 535         @if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
 536         $(CALC_VERSIONS); \
 537         SHLIB=lib$(LIBNAME).sl; \
 538         expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
 539         SHLIB_SUFFIX=; \
 540         ALLSYMSFLAGS='-Wl,-Fl'; \
 541         NOALLSYMSFLAGS=''; \
 542         expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
 543         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+h,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,+cdp,../:,+cdp,./:"; \
 544         fi; \
 545         rm -f $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX || :; \
 546         $(LINK_SO_A) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
 547 link_app.hpux:
 548         @if $(DETECT_GNU_LD); then $(DO_GNU_APP); else \
 549         LDFLAGS="$(CFLAGS) $(LDFLAGS) -Wl,+s,+cdp,../:,+cdp,./:,+b,$(LIBRPATH)"; \
 550         fi; \
 551         $(LINK_APP)
 552
 553 link_o.aix:
 554         @ $(CALC_VERSIONS); \
 555         OBJECT_MODE=`expr "x$(SHARED_LDFLAGS)" : 'x\-[a-z]*\(64\)'` || :; \
 556         OBJECT_MODE=$${OBJECT_MODE:-32}; export OBJECT_MODE; \
 557         SHLIB=lib$(LIBNAME).so; \
 558         SHLIB_SUFFIX=; \
 559         ALLSYMSFLAGS=''; \
 560         NOALLSYMSFLAGS=''; \
 561         SHAREDFLAGS='$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-bexpall,-bnolibpath,-bM:SRE'; \
 562         $(LINK_SO_O);
 563 link_a.aix:
 564         @ $(CALC_VERSIONS); \
 565         OBJECT_MODE=`expr "x$(SHARED_LDFLAGS)" : 'x\-[a-z]*\(64\)'` || : ; \
 566         OBJECT_MODE=$${OBJECT_MODE:-32}; export OBJECT_MODE; \
 567         SHLIB=lib$(LIBNAME).so; \
 568         SHLIB_SUFFIX=; \
 569         ALLSYMSFLAGS='-bnogc'; \
 570         NOALLSYMSFLAGS=''; \
 571         SHAREDFLAGS='$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-bexpall,-bnolibpath,-bM:SRE'; \
 572         $(LINK_SO_A_VIA_O)
 573 link_app.aix:
 574         LDFLAGS="$(CFLAGS) $(LDFLAGS) -Wl,-brtl,-blibpath:$(LIBRPATH):$${LIBPATH:-/usr/lib:/lib}"; \
 575         $(LINK_APP)
 576
 577
 578 # Targets to build symbolic links when needed
 579 symlink.gnu symlink.solaris symlink.svr3 symlink.svr5 symlink.irix \
 580 symlink.aix:
 581         @ $(CALC_VERSIONS); \
 582         SHLIB=lib$(LIBNAME).so; \
 583         $(SYMLINK_SO)
 584 symlink.darwin:
 585         @ $(CALC_VERSIONS); \
 586         SHLIB=lib$(LIBNAME); \
 587         SHLIB_SUFFIX=.dylib; \
 588         $(SYMLINK_SO)
 589 symlink.hpux:
 590         @ $(CALC_VERSIONS); \
 591         SHLIB=lib$(LIBNAME).sl; \
 592         expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
 593         $(SYMLINK_SO)
 594 # The following lines means those specific architectures do no symlinks
 595 symlink.cygwin symlink.alpha-osf1 symlink.tru64 symlink.tru64-rpath:
 596
 597 # Compatibility targets
 598 link_o.bsd-gcc-shared link_o.linux-shared link_o.gnu-shared: link_o.gnu
 599 link_a.bsd-gcc-shared link_a.gnu-shared: link_a.gnu
 600 link_app.bsd-gcc-shared link_app.linux-shared link_app.gnu-shared: link_app.gnu
 601 symlink.bsd-gcc-shared symlink.bsd-shared symlink.linux-shared symlink.gnu-shared: symlink.gnu
 602 link_o.bsd-shared: link_o.bsd
 603 link_a.bsd-shared: link_a.bsd
 604 link_app.bsd-shared: link_app.bsd
 605 link_o.darwin-shared: link_o.darwin
 606 link_a.darwin-shared: link_a.darwin
 607 link_app.darwin-shared: link_app.darwin
 608 symlink.darwin-shared: symlink.darwin
 609 link_o.cygwin-shared: link_o.cygwin
 610 link_a.cygwin-shared: link_a.cygwin
 611 link_app.cygwin-shared: link_app.cygwin
 612 symlink.cygwin-shared: symlink.cygwin
 613 link_o.alpha-osf1-shared: link_o.alpha-osf1
 614 link_a.alpha-osf1-shared: link_a.alpha-osf1
 615 link_app.alpha-osf1-shared: link_app.alpha-osf1
 616 symlink.alpha-osf1-shared: symlink.alpha-osf1
 617 link_o.tru64-shared: link_o.tru64
 618 link_a.tru64-shared: link_a.tru64
 619 link_app.tru64-shared: link_app.tru64
 620 symlink.tru64-shared: symlink.tru64
 621 link_o.tru64-shared-rpath: link_o.tru64-rpath
 622 link_a.tru64-shared-rpath: link_a.tru64-rpath
 623 link_app.tru64-shared-rpath: link_app.tru64-rpath
 624 symlink.tru64-shared-rpath: symlink.tru64-rpath
 625 link_o.solaris-shared: link_o.solaris
 626 link_a.solaris-shared: link_a.solaris
 627 link_app.solaris-shared: link_app.solaris
 628 symlink.solaris-shared: symlink.solaris
 629 link_o.svr3-shared: link_o.svr3
 630 link_a.svr3-shared: link_a.svr3
 631 link_app.svr3-shared: link_app.svr3
 632 symlink.svr3-shared: symlink.svr3
 633 link_o.svr5-shared: link_o.svr5
 634 link_a.svr5-shared: link_a.svr5
 635 link_app.svr5-shared: link_app.svr5
 636 symlink.svr5-shared: symlink.svr5
 637 link_o.irix-shared: link_o.irix
 638 link_a.irix-shared: link_a.irix
 639 link_app.irix-shared: link_app.irix
 640 symlink.irix-shared: symlink.irix
 641 link_o.hpux-shared: link_o.hpux
 642 link_a.hpux-shared: link_a.hpux
 643 link_app.hpux-shared: link_app.hpux
 644 symlink.hpux-shared: symlink.hpux
 645 link_o.aix-shared: link_o.aix
 646 link_a.aix-shared: link_a.aix
 647 link_app.aix-shared: link_app.aix
 648 symlink.aix-shared: symlink.aix