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 # LDFLAGS contains flags to be used when temporary object files (when building
  11 # shared libraries) are created, or when an application is linked.
  12 # SHARED_LDFLAGS contains flags to be used when the shared library is created.
  13 LDFLAGS=
  14 SHARED_LDFLAGS=
  15
  16 # LIBNAME contains just the name of the library, without prefix ("lib"
  17 # on Unix, "cyg" for certain forms under Cygwin...) or suffix (.a, .so,
  18 # .dll, ...).  This one MUST have a value when using this makefile to
  19 # build shared libraries.
  20 # For example, to build libfoo.so, you need to do the following:
  21 #LIBNAME=foo
  22 LIBNAME=
  23
  24 # APPNAME contains just the name of the application, without suffix (""
  25 # on Unix, ".exe" on Windows, ...).  This one MUST have a value when using
  26 # this makefile to build applications.
  27 # For example, to build foo, you need to do the following:
  28 #APPNAME=foo
  29 APPNAME=
  30
  31 # OBJECTS contains all the object files to link together into the application.
  32 # This must contain at least one object file.
  33 #OBJECTS=foo.o
  34 OBJECTS=
  35
  36 # LIBEXTRAS contains extra modules to link together with the library.
  37 # For example, if a second library, say libbar.a needs to be linked into
  38 # libfoo.so, you need to do the following:
  39 #LIBEXTRAS=libbar.a
  40 # Note that this MUST be used when using the link_o targets, to hold the
  41 # names of all object files that go into the target library.
  42 LIBEXTRAS=
  43
  44 # LIBVERSION contains the current version of the library.
  45 # For example, to build libfoo.so.1.2, you need to do the following:
  46 #LIBVERSION=1.2
  47 LIBVERSION=
  48
  49 # LIBCOMPATVERSIONS contains the compatibility versions (a list) of
  50 # the library.  They MUST be in decreasing order.
  51 # For example, if libfoo.so.1.2.1 is backward compatible with libfoo.so.1.2
  52 # and libfoo.so.1, you need to do the following:
  53 #LIBCOMPATVERSIONS=1.2 1
  54 # Note that on systems that use sonames, the last number will appear as
  55 # part of it.
  56 # It's also possible, for systems that support it (Tru64, for example),
  57 # to add extra compatibility info with more precision, by adding a second
  58 # list of versions, separated from the first with a semicolon, like this:
  59 #LIBCOMPATVERSIONS=1.2 1;1.2.0 1.1.2 1.1.1 1.1.0 1.0.0
  60 LIBCOMPATVERSIONS=
  61
  62 # LIBDEPS contains all the flags necessary to cover all necessary
  63 # dependencies to other libraries.
  64 LIBDEPS=
  65
  66 #------------------------------------------------------------------------------
  67 # The rest is private to this makefile.
  68
  69 #DEBUG=:
  70 DEBUG=set -x
  71
  72 top:
  73         echo "Trying to use this makefile interactively?  Don't."
  74
  75 CALC_VERSIONS=  \
  76         SHLIB_COMPAT=; SHLIB_SOVER=; \
  77         if [ -n "$(LIBVERSION)$(LIBCOMPATVERSIONS)" ]; then \
  78                 prev=""; \
  79                 for v in `echo "$(LIBVERSION) $(LIBCOMPATVERSIONS)" | cut -d';' -f1`; do \
  80                         SHLIB_SOVER_NODOT=$$v; \
  81                         SHLIB_SOVER=.$$v; \
  82                         if [ -n "$$prev" ]; then \
  83                                 SHLIB_COMPAT="$$SHLIB_COMPAT .$$prev"; \
  84                         fi; \
  85                         prev=$$v; \
  86                 done; \
  87         fi
  88
  89 LINK_APP=       \
  90   ( $(DEBUG);   \
  91     $$LDCMD $(LDFLAGS) $$LDFLAGS -o $$APPNAME $(OBJECTS) $$LIBDEPS )
  92
  93 LINK_SO=        \
  94   ( $(DEBUG);   \
  95     nm -Pg $$SHOBJECTS | grep ' [BDT] ' | cut -f1 -d' ' > lib$(LIBNAME).exp; \
  96     $$SHAREDCMD $(SHARED_LDFLAGS) $$SHAREDFLAGS -o $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX \
  97         $$ALLSYMSFLAGS $$SHOBJECTS $$NOALLSYMSFLAGS $$LIBDEPS ) && \
  98   $(SYMLINK_SO); ( $(DEBUG); rm -f lib$(LIBNAME).exp )
  99 SYMLINK_SO=     \
 100         if [ -n "$$INHIBIT_SYMLINKS" ]; then :; else \
 101                 prev=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX; \
 102                 if [ -n "$$SHLIB_COMPAT" ]; then \
 103                         for x in $$SHLIB_COMPAT; do \
 104                                 ( $(DEBUG); rm -f $$SHLIB$$x$$SHLIB_SUFFIX; \
 105                                   ln -s $$prev $$SHLIB$$x$$SHLIB_SUFFIX ); \
 106                                 prev=$$SHLIB$$x$$SHLIB_SUFFIX; \
 107                         done; \
 108                 fi; \
 109                 if [ -n "$$SHLIB_SOVER" ]; then \
 110                         ( $(DEBUG); rm -f $$SHLIB$$SHLIB_SUFFIX; \
 111                           ln -s $$prev $$SHLIB$$SHLIB_SUFFIX ); \
 112                 fi; \
 113         fi
 114
 115 LINK_SO_A=      SHOBJECTS="lib$(LIBNAME).a $(LIBEXTRAS)"; $(LINK_SO)
 116 LINK_SO_O=      SHOBJECTS="$(LIBEXTRAS)"; $(LINK_SO)
 117 LINK_SO_A_VIA_O=        \
 118   SHOBJECTS=lib$(LIBNAME).o; \
 119   ALL=$$ALLSYMSFLAGS; ALLSYMSFLAGS=; NOALLSYMSFLAGS=; \
 120   ( $(DEBUG); \
 121     ld $(LDFLAGS) -r -o lib$(LIBNAME).o $$ALL lib$(LIBNAME).a $(LIBEXTRAS) ); \
 122   $(LINK_SO) && rm -f $(LIBNAME).o
 123 LINK_SO_A_UNPACKED=     \
 124   UNPACKDIR=link_tmp.$$$$; rm -rf $$UNPACKDIR; mkdir $$UNPACKDIR; \
 125   (cd $$UNPACKDIR; ar x ../lib$(LIBNAME).a) && cp $(LIBEXTRAS) $$UNPACKDIR && \
 126   SHOBJECTS=$$UNPACKDIR/*.o; \
 127   $(LINK_SO) && rm -rf $$UNPACKDIR
 128
 129 DETECT_GNU_LD=(${CC} -Wl,-V /dev/null 2>&1 | grep '^GNU ld' )>/dev/null
 130
 131 DO_GNU_SO=$(CALC_VERSIONS); \
 132         SHLIB=lib$(LIBNAME).so; \
 133         SHLIB_SUFFIX=; \
 134         LIBDEPS="$(LIBDEPS) -lc"; \
 135         ALLSYMSFLAGS='-Wl,--whole-archive'; \
 136         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 137         SHAREDFLAGS="-shared -Wl,-Bsymbolic -Wl,-soname=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-rpath,$(LIBRPATH)"; \
 138         SHAREDCMD='$(CC)'
 139 DO_GNU_APP=LDCMD=$(CC);\
 140         LDFLAGS="-Wl,-rpath,$(LIBRPATH)"; \
 141         LIBDEPS="$(LIBDEPS) -lc"; \
 142         APPNAME=$(APPNAME)
 143
 144 #This is rather special.  It's a special target with which one can link
 145 #applications without bothering with any features that have anything to
 146 #do with shared libraries, for example when linking against static
 147 #libraries.  It's mostly here to avoid a lot of conditionals everywhere
 148 #else...
 149 link_app.:
 150         LDCMD=$(CC); \
 151         LDFLAGS=""; \
 152         LIBDEPS="$(LIBDEPS)"; \
 153         APPNAME="$(APPNAME)"; \
 154         $(LINK_APP)
 155
 156 link_o.gnu:
 157         @ $(DO_GNU_SO); $(LINK_SO_O)
 158 link_a.gnu:
 159         @ $(DO_GNU_SO); $(LINK_SO_A)
 160 link_app.gnu:
 161         @ $(DO_GNU_APP); $(LINK_APP)
 162
 163 # For Darwin AKA Mac OS/X (dyld)
 164 link_o.darwin:
 165         @ $(CALC_VERSIONS); \
 166         SHLIB=lib$(LIBNAME); \
 167         SHLIB_SUFFIX=.dylib; \
 168         LIBDEPS="$(LIBDEPS) -lc"; \
 169         ALLSYMSFLAGS='-all_load'; \
 170         NOALLSYMSFLAGS=''; \
 171         SHAREDFLAGS="-dynamiclib"; \
 172         SHAREDCMD='$(CC)'; \
 173         if [ -n "$(LIBVERSION)" ]; then \
 174                 SHAREDFLAGS="$$SHAREDFLAGS -current_version $(LIBVERSION)"; \
 175         fi; \
 176         if [ -n "$$SHLIB_SOVER_NODOT" ]; then \
 177                 SHAREDFLAGS="$$SHAREDFLAGS -compatibility_version $$SHLIB_SOVER_NODOT"; \
 178         fi; \
 179         $(LINK_SO_O)
 180 link_a.darwin:
 181         @ $(CALC_VERSIONS); \
 182         SHLIB=lib$(LIBNAME); \
 183         SHLIB_SUFFIX=.dylib; \
 184         LIBDEPS="$(LIBDEPS) -lc"; \
 185         ALLSYMSFLAGS='-all_load'; \
 186         NOALLSYMSFLAGS=''; \
 187         SHAREDFLAGS="-dynamiclib"; \
 188         SHAREDCMD='$(CC)'; \
 189         if [ -n "$(LIBVERSION)" ]; then \
 190                 SHAREDFLAGS="$$SHAREDFLAGS -current_version $(LIBVERSION)"; \
 191         fi; \
 192         if [ -n "$$SHLIB_SOVER_NODOT" ]; then \
 193                 SHAREDFLAGS="$$SHAREDFLAGS -compatibility_version $$SHLIB_SOVER_NODOT"; \
 194         fi; \
 195         $(LINK_SO_A)
 196 link_app.darwin:
 197         LDCMD=$(CC);\
 198         LDFLAGS=""; \
 199         LIBDEPS="$(LIBDEPS) -lc"; \
 200         APPNAME="$(APPNAME)"; \
 201         $(LINK_APP)
 202
 203 link_o.cygwin:
 204         @ $(CALC_VERSIONS); \
 205         INHIBIT_SYMLINKS=yes; \
 206         SHLIB=cyg$(LIBNAME); \
 207         SHLIB_SUFFIX=.dll; \
 208         LIBDEPS="$(LIBDEPS) -lc"; \
 209         SHLIB_SOVER=-$(LIBVERSION); \
 210         ALLSYMSFLAGS='-Wl,--whole-archive'; \
 211         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 212         SHAREDFLAGS="-shared -Wl,-Bsymbolic -Wl,--out-implib,lib$(LIBNAME).dll.a"; \
 213         SHAREDCMD='${CC}'; \
 214         $(LINK_SO_O)
 215 link_a.cygwin:
 216         @ $(CALC_VERSIONS); \
 217         INHIBIT_SYMLINKS=yes; \
 218         SHLIB=cyg$(LIBNAME); \
 219         SHLIB_SUFFIX=.dll; \
 220         LIBDEPS="$(LIBDEPS) -lc"; \
 221         SHLIB_SOVER=; \
 222         ALLSYMSFLAGS='-Wl,--whole-archive'; \
 223         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 224         SHAREDFLAGS="-shared -Wl,-Bsymbolic -Wl,--out-implib,lib$(LIBNAME).dll.a"; \
 225         SHAREDCMD='${CC}'; \
 226         $(LINK_SO_A)
 227 link_app.cygwin:
 228         LDCMD=$(CC);\
 229         LDFLAGS=""; \
 230         LIBDEPS="$(LIBDEPS) -lc"; \
 231         APPNAME="$(APPNAME).exe"
 232         $(LINK_APP)
 233
 234 link_o.alpha-osf1:
 235         @ if ${DETECT_GNU_LD}; then \
 236                 $(DO_GNU_SO); \
 237         else \
 238                 SHLIB=lib$(LIBNAME).so; \
 239                 SHLIB_SUFFIX=; \
 240                 LIBDEPS="$(LIBDEPS) -lc"; \
 241                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 242                 if [ -n "$$SHLIB_HIST" ]; then \
 243                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 244                 else \
 245                         SHLIB_HIST="$(LIBVERSION)"; \
 246                 fi; \
 247                 SHLIB_SOVER=; \
 248                 ALLSYMSFLAGS='-all'; \
 249                 NOALLSYMSFLAGS='-none'; \
 250                 SHAREDFLAGS="-shared"; \
 251                 SHAREDCMD='$(CC)'; \
 252                 if [ -n "$$SHLIB_HIST" ]; then \
 253                         SHAREDFLAGS="$$SHAREDFLAGS -set_version \"$$SHLIB_HIST\""; \
 254                 fi; \
 255         fi; \
 256         $(LINK_SO_O)
 257 link_a.alpha-osf1:
 258         @ if ${DETECT_GNU_LD}; then \
 259                 $(DO_GNU_SO); \
 260         else \
 261                 SHLIB=lib$(LIBNAME).so; \
 262                 SHLIB_SUFFIX=; \
 263                 LIBDEPS="$(LIBDEPS) -lc"; \
 264                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 265                 if [ -n "$$SHLIB_HIST" ]; then \
 266                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 267                 else \
 268                         SHLIB_HIST="$(LIBVERSION)"; \
 269                 fi; \
 270                 SHLIB_SOVER=; \
 271                 ALLSYMSFLAGS='-all'; \
 272                 NOALLSYMSFLAGS='-none'; \
 273                 SHAREDFLAGS="-shared"; \
 274                 SHAREDCMD='$(CC)'; \
 275                 if [ -n "$$SHLIB_HIST" ]; then \
 276                         SHAREDFLAGS="$$SHAREDFLAGS -set_version \"$$SHLIB_HIST\""; \
 277                 fi; \
 278         fi; \
 279         $(LINK_SO_A)
 280 link_app.alpha-osf1:
 281         @ if ${DETECT_GNU_LD}; then \
 282                 $(DO_GNU_APP); \
 283         else \
 284                 LDCMD=$(CC);\
 285                 LDFLAGS=""; \
 286                 LIBDEPS="$(LIBDEPS) -lc"; \
 287                 APPNAME="$(APPNAME)"
 288         fi; \
 289         $(LINK_APP)
 290
 291 # The difference between alpha-osf1-shared and tru64-shared is the `-msym'
 292 # option passed to the linker.
 293 link_o.tru64:
 294         @ if ${DETECT_GNU_LD}; then \
 295                 $(DO_GNU_SO); \
 296         else \
 297                 SHLIB=lib$(LIBNAME).so; \
 298                 SHLIB_SUFFIX=; \
 299                 LIBDEPS="$(LIBDEPS) -lc"; \
 300                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 301                 if [ -n "$$SHLIB_HIST" ]; then \
 302                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 303                 else \
 304                         SHLIB_HIST="$(LIBVERSION)"; \
 305                 fi; \
 306                 SHLIB_SOVER=; \
 307                 ALLSYMSFLAGS='-all'; \
 308                 NOALLSYMSFLAGS='-none'; \
 309                 SHAREDFLAGS="-shared -msym -rpath $(LIBRPATH)"; \
 310                 SHAREDCMD='$(CC)'; \
 311                 if [ -n "$$SHLIB_HIST" ]; then \
 312                         SHAREDFLAGS="$$SHAREDFLAGS -set_version \"$$SHLIB_HIST\""; \
 313                 fi; \
 314         fi; \
 315         $(LINK_SO_O)
 316 link_a.tru64:
 317         @ if ${DETECT_GNU_LD}; then \
 318                 $(DO_GNU_SO); \
 319         else \
 320                 SHLIB=lib$(LIBNAME).so; \
 321                 SHLIB_SUFFIX=; \
 322                 LIBDEPS="$(LIBDEPS) -lc"; \
 323                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 324                 if [ -n "$$SHLIB_HIST" ]; then \
 325                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 326                 else \
 327                         SHLIB_HIST="$(LIBVERSION)"; \
 328                 fi; \
 329                 SHLIB_SOVER=; \
 330                 ALLSYMSFLAGS='-all'; \
 331                 NOALLSYMSFLAGS='-none'; \
 332                 SHAREDFLAGS="-shared -msym -rpath $(LIBRPATH)"; \
 333                 SHAREDCMD='$(CC)'; \
 334                 if [ -n "$$SHLIB_HIST" ]; then \
 335                         SHAREDFLAGS="$$SHAREDFLAGS -set_version \"$$SHLIB_HIST\""; \
 336                 fi; \
 337         fi; \
 338         $(LINK_SO_A)
 339 link_app.tru64:
 340         @ if ${DETECT_GNU_LD}; then \
 341                 $(DO_GNU_APP); \
 342         else \
 343                 LDCMD=$(CC);\
 344                 LDFLAGS="-rpath $(LIBRPATH)"; \
 345                 LIBDEPS="$(LIBDEPS) -lc"; \
 346                 APPNAME="$(APPNAME)"; \
 347         fi; \
 348         $(LINK_APP)
 349
 350 # The difference between tru64-shared and tru64-shared-rpath is the
 351 # -rpath ${LIBRPATH} passed to the linker.
 352 link_o.tru64-rpath:
 353         @ if ${DETECT_GNU_LD}; then \
 354                 $(DO_GNU_SO); \
 355         else \
 356                 SHLIB=lib$(LIBNAME).so; \
 357                 SHLIB_SUFFIX=; \
 358                 LIBDEPS="$(LIBDEPS) -lc"; \
 359                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 360                 if [ -n "$$SHLIB_HIST" ]; then \
 361                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 362                 else \
 363                         SHLIB_HIST="$(LIBVERSION)"; \
 364                 fi; \
 365                 SHLIB_SOVER=; \
 366                 ALLSYMSFLAGS='-all'; \
 367                 NOALLSYMSFLAGS='-none'; \
 368                 SHAREDFLAGS="-shared -msym -rpath $(LIBRPATH)"; \
 369                 SHAREDCMD='$(CC)'; \
 370                 if [ -n "$$SHLIB_HIST" ]; then \
 371                         SHAREDFLAGS="$$SHAREDFLAGS -set_version \"$$SHLIB_HIST\""; \
 372                 fi; \
 373         fi; \
 374         $(LINK_SO_O)
 375 link_a.tru64-rpath:
 376         @ if ${DETECT_GNU_LD}; then \
 377                 $(DO_GNU_SO); \
 378         else \
 379                 SHLIB=lib$(LIBNAME).so; \
 380                 SHLIB_SUFFIX=; \
 381                 LIBDEPS="$(LIBDEPS) -lc"; \
 382                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 383                 if [ -n "$$SHLIB_HIST" ]; then \
 384                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 385                 else \
 386                         SHLIB_HIST="$(LIBVERSION)"; \
 387                 fi; \
 388                 SHLIB_SOVER=; \
 389                 ALLSYMSFLAGS='-all'; \
 390                 NOALLSYMSFLAGS='-none'; \
 391                 SHAREDFLAGS="-shared -msym -rpath $(LIBRPATH)"; \
 392                 SHAREDCMD='$(CC)'; \
 393                 if [ -n "$$SHLIB_HIST" ]; then \
 394                         SHAREDFLAGS="$$SHAREDFLAGS -set_version \"$$SHLIB_HIST\""; \
 395                 fi; \
 396         fi; \
 397         $(LINK_SO_A)
 398 link_app.tru64-rpath:
 399         @ if ${DETECT_GNU_LD}; then \
 400                 $(DO_GNU_APP); \
 401         else \
 402                 LDCMD=$(CC);\
 403                 LDFLAGS="-rpath $(LIBRPATH)"; \
 404                 LIBDEPS="$(LIBDEPS) -lc"; \
 405                 APPNAME="$(APPNAME)"; \
 406         fi; \
 407         $(LINK_APP)
 408
 409 link_o.solaris:
 410         @ if ${DETECT_GNU_LD}; then \
 411                 $(DO_GNU_SO); \
 412         else \
 413                 $(CALC_VERSIONS); \
 414                 MINUSZ='-z '; \
 415                 (${CC} -v 2>&1 | grep gcc) > /dev/null && MINUSZ='-Wl,-z,'; \
 416                 SHLIB=lib$(LIBNAME).so; \
 417                 SHLIB_SUFFIX=; \
 418                 LIBDEPS="$(LIBDEPS) -lc"; \
 419                 ALLSYMSFLAGS="$${MINUSZ}allextract"; \
 420                 NOALLSYMSFLAGS="$${MINUSZ}defaultextract"; \
 421                 SHAREDFLAGS="-G -dy -z text -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -R $(LIBRPATH)"; \
 422                 SHAREDCMD='$(CC)'; \
 423         fi; \
 424         $(LINK_SO_O)
 425 link_a.solaris:
 426         @ if ${DETECT_GNU_LD}; then \
 427                 $(DO_GNU_SO); \
 428         else \
 429                 $(CALC_VERSIONS); \
 430                 MINUSZ='-z '; \
 431                 (${CC} -v 2>&1 | grep gcc) > /dev/null && MINUSZ='-Wl,-z,'; \
 432                 SHLIB=lib$(LIBNAME).so; \
 433                 SHLIB_SUFFIX=;\
 434                 LIBDEPS="$(LIBDEPS) -lc"; \
 435                 ALLSYMSFLAGS="$${MINUSZ}allextract"; \
 436                 NOALLSYMSFLAGS="$${MINUSZ}defaultextract"; \
 437                 SHAREDFLAGS="-G -dy -z text -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -R $(LIBRPATH)"; \
 438                 SHAREDCMD='$(CC)'; \
 439         fi; \
 440         $(LINK_SO_A)
 441 link_app.solaris:
 442         @ if ${DETECT_GNU_LD}; then \
 443                 $(DO_GNU_APP); \
 444         else \
 445                 LDCMD=$(CC);\
 446                 LDFLAGS="-R $(LIBRPATH)"; \
 447                 LIBDEPS="$(LIBDEPS) -lc"; \
 448                 APPNAME="$(APPNAME)"; \
 449         fi; \
 450         $(LINK_APP)
 451
 452 # OpenServer 5 native compilers used
 453 # UnixWare 7 and OpenUNIX 8 native compilers used
 454 link_o.svr3:
 455         @ if ${DETECT_GNU_LD}; then \
 456                 $(DO_GNU_SO); \
 457         else \
 458                 $(CALC_VERSIONS); \
 459                 SHARE_FLAG='-G'; \
 460                 (${CC} -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAGS='-shared'; \
 461                 SHLIB=lib$(LIBNAME).so; \
 462                 SHLIB_SUFFIX=; \
 463                 LIBDEPS="$(LIBDEPS) -lc"; \
 464                 ALLSYMSFLAGS='-z allextract'; \
 465                 NOALLSYMSFLAGS=''; \
 466                 SHAREDFLAGS="$${SHARE_FLAG} -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 467                 SHAREDCMD='$(CC)'; \
 468         fi; \
 469         $(LINK_SO_O)
 470 link_a.svr3:
 471         @ if ${DETECT_GNU_LD}; then \
 472                 $(DO_GNU_SO); \
 473         else \
 474                 $(CALC_VERSIONS); \
 475                 SHARE_FLAG='-G'; \
 476                 (${CC} -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAGS='-shared'; \
 477                 SHLIB=lib$(LIBNAME).so; \
 478                 SHLIB_SUFFIX=; \
 479                 LIBDEPS="$(LIBDEPS) -lc"; \
 480                 ALLSYMSFLAGS='-z allextract'; \
 481                 NOALLSYMSFLAGS=''; \
 482                 SHAREDFLAGS="$${SHARE_FLAG} -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 483                 SHAREDCMD='$(CC)'; \
 484         fi; \
 485         $(LINK_SO_A_UNPACKED)
 486 link_app.svr3:
 487         @ if ${DETECT_GNU_LD}; then \
 488                 $(DO_GNU_APP); \
 489         else \
 490                 LDCMD=$(CC);\
 491                 LDFLAGS=""; \
 492                 LIBDEPS="$(LIBDEPS) -lc"; \
 493                 APPNAME="$(APPNAME)"; \
 494         fi; \
 495         $(LINK_APP)
 496
 497 link_o.irix:
 498         @ if ${DETECT_GNU_LD}; then \
 499                 $(DO_GNU_SO); \
 500         else \
 501                 $(CALC_VERSIONS); \
 502                 SHLIB=lib$(LIBNAME).so; \
 503                 SHLIB_SUFFIX=; \
 504                 LIBDEPS="$(LIBDEPS) -lc"; \
 505                 ALLSYMSFLAGS='-all'; \
 506                 NOALLSYMSFLAGS=''; \
 507                 SHAREDFLAGS="-shared -Wl,-soname,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-rpath,$(LIBRPATH)"; \
 508                 SHAREDCMD='$(CC)'; \
 509         fi; \
 510         $(LINK_SO_O)
 511 link_a.irix:
 512         @ if ${DETECT_GNU_LD}; then \
 513                 $(DO_GNU_SO); \
 514         else \
 515                 $(CALC_VERSIONS); \
 516                 SHLIB=lib$(LIBNAME).so; \
 517                 SHLIB_SUFFIX=; \
 518                 LIBDEPS="$(LIBDEPS) -lc"; \
 519                 ALLSYMSFLAGS='-all'; \
 520                 NOALLSYMSFLAGS=''; \
 521                 SHAREDFLAGS="-shared -Wl,-soname,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-rpath,$(LIBRPATH)"; \
 522                 SHAREDCMD='$(CC)'; \
 523         fi; \
 524         $(LINK_SO_A)
 525 link_app.irix:
 526         @ if ${DETECT_GNU_LD}; then \
 527                 $(DO_GNU_APP); \
 528         else \
 529                 LDCMD=$(CC);\
 530                 LDFLAGS="-Wl,-rpath,$(LIBRPATH)"; \
 531                 LIBDEPS="$(LIBDEPS) -lc"; \
 532                 APPNAME="$(APPNAME)"; \
 533         fi; \
 534         $(LINK_APP)
 535
 536 # HP-UX includes the full pathname of libs we depend on, so we would get
 537 # ./libcrypto (with ./ as path information) compiled into libssl, hence
 538 # we omit the SHLIBDEPS. Applications must be linked with -lssl -lcrypto
 539 # anyway.
 540 # The object modules are loaded from lib$i.a using the undocumented -Fl
 541 # option.
 542 #
 543 # WARNING: Until DSO is fixed to support a search path, we support SHLIB_PATH
 544 #          by temporarily specifying "+s"!
 545 #
 546 link_o.hpux32:
 547         @ $(CALC_VERSIONS); \
 548         SHLIB=lib$(LIBNAME).sl; \
 549         SHLIB_SUFFIX=; \
 550         LIBDEPS="$(LIBDEPS) -lc"; \
 551         ALLSYMSFLAGS='-Fl'; \
 552         NOALLSYMSFLAGS=''; \
 553         SHAREDFLAGS="+vnocompatwarnings -b -z +s +h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX +b $(LIBRPATH)"; \
 554         SHAREDCMD='/usr/ccs/bin/ld'; \
 555         $(LINK_SO_O) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
 556 link_a.hpux32:
 557         @ $(CALC_VERSIONS); \
 558         SHLIB=lib$(LIBNAME).sl; \
 559         SHLIB_SUFFIX=; \
 560         LIBDEPS="$(LIBDEPS) -lc"; \
 561         ALLSYMSFLAGS='-Fl'; \
 562         NOALLSYMSFLAGS=''; \
 563         SHAREDFLAGS="+vnocompatwarnings -b -z +s +h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX +b $(LIBRPATH)"; \
 564         SHAREDCMD='/usr/ccs/bin/ld'; \
 565         $(LINK_SO_A) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
 566 link_app.hpux32:
 567         LDCMD=$(CC);\
 568         LDFLAGS="-Wl,+b,$(LIBRPATH)"; \
 569         LIBDEPS="$(LIBDEPS) -lc"; \
 570         APPNAME="$(APPNAME)"
 571         $(LINK_APP)
 572
 573 # HP-UX includes the full pathname of libs we depend on, so we would get
 574 # ./libcrypto (with ./ as path information) compiled into libssl, hence
 575 # we omit the SHLIBDEPS. Applications must be linked with -lssl -lcrypto
 576 # anyway.
 577 #
 578 # HP-UX in 64bit mode has "+s" enabled by default; it will search for
 579 # shared libraries along LD_LIBRARY_PATH _and_ SHLIB_PATH.
 580 #
 581 link_o.hpux64:
 582         @ $(CALC_VERSIONS); \
 583         SHLIB=lib$(LIBNAME).sl; \
 584         SHLIB_SUFFIX=; \
 585         LIBDEPS="$(LIBDEPS) -lc"; \
 586         ALLSYMSFLAGS='+forceload'; \
 587         NOALLSYMSFLAGS=''; \
 588         SHAREDFLAGS="-b -z +h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX +b $(LIBRPATH)"; \
 589         SHAREDCMD='/usr/ccs/bin/ld'; \
 590         $(LINK_SO_O) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
 591 link_a.hpux64:
 592         @ $(CALC_VERSIONS); \
 593         SHLIB=lib$(LIBNAME).sl; \
 594         SHLIB_SUFFIX=; \
 595         LIBDEPS="$(LIBDEPS) -lc"; \
 596         ALLSYMSFLAGS='+forceload'; \
 597         NOALLSYMSFLAGS=''; \
 598         SHAREDFLAGS="-b -z +h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX +b $(LIBRPATH)"; \
 599         SHAREDCMD='/usr/ccs/bin/ld'; \
 600         $(LINK_SO_A) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
 601 link_app.hpux64:
 602         LDCMD=$(CC);\
 603         LDFLAGS="-Wl,+b,$(LIBRPATH)"; \
 604         LIBDEPS="$(LIBDEPS) -lc"; \
 605         APPNAME="$(APPNAME)"
 606         $(LINK_APP)
 607
 608 link_o.aix:
 609         @ $(CALC_VERSIONS); \
 610         SHLIB=lib$(LIBNAME).so; \
 611         SHLIB_SUFFIX=; \
 612         LIBDEPS="$(LIBDEPS) -lc"; \
 613         ALLSYMSFLAGS='-bnogc'; \
 614         NOALLSYMSFLAGS=''; \
 615         SHAREDFLAGS='-G -bE:lib$(LIBNAME).exp -bM:SRE -blibpath:$(LIBRPATH)'; \
 616         SHAREDCMD='$(CC)'; \
 617         $(LINK_SO_O)
 618 link_a.aix:
 619         @ $(CALC_VERSIONS); \
 620         SHLIB=lib$(LIBNAME).so; \
 621         SHLIB_SUFFIX=; \
 622         LIBDEPS="$(LIBDEPS) -lc"; \
 623         ALLSYMSFLAGS='-bnogc'; \
 624         NOALLSYMSFLAGS=''; \
 625         SHAREDFLAGS='-G -bE:lib$(LIBNAME).exp -bM:SRE -blibpath:$(LIBRPATH)'; \
 626         SHAREDCMD='$(CC)'; \
 627         $(LINK_SO_A_VIA_O)
 628 link_app.aix:
 629         LDCMD=$(CC);\
 630         LDFLAGS="-blibpath:$(LIBRPATH)"; \
 631         LIBDEPS="$(LIBDEPS) -lc"; \
 632         APPNAME="$(APPNAME)"
 633         $(LINK_APP)
 634
 635 link_o.reliantunix:
 636         @ $(CALC_VERSIONS); \
 637         SHLIB=lib$(LIBNAME).so; \
 638         SHLIB_SUFFIX=; \
 639         LIBDEPS="$(LIBDEPS) -lc"; \
 640         ALLSYMSFLAGS=; \
 641         NOALLSYMSFLAGS=''; \
 642         SHAREDFLAGS='-G'; \
 643         SHAREDCMD='$(CC)'; \
 644         $(LINK_SO_O)
 645 link_a.reliantunix:
 646         @ $(CALC_VERSIONS); \
 647         SHLIB=lib$(LIBNAME).so; \
 648         SHLIB_SUFFIX=; \
 649         LIBDEPS="$(LIBDEPS) -lc"; \
 650         ALLSYMSFLAGS=; \
 651         NOALLSYMSFLAGS=''; \
 652         SHAREDFLAGS='-G'; \
 653         SHAREDCMD='$(CC)'; \
 654         $(LINK_SO_A_UNPACKED)
 655 link_app.reliantunix:
 656         LDCMD=$(CC);\
 657         LDFLAGS=""; \
 658         LIBDEPS="$(LIBDEPS) -lc"; \
 659         APPNAME="$(APPNAME)"
 660         $(LINK_APP)
 661
 662 # Targets to build symbolic links when needed
 663 symlink.gnu symlink.solaris symlink.svr3 symlink.irix \
 664 symlink.aix symlink.reliantunix:
 665         @ $(CALC_VERSIONS); \
 666         SHLIB=lib$(LIBNAME).so; \
 667         $(SYMLINK_SO)
 668 symlink.darwin:
 669         @ $(CALC_VERSIONS); \
 670         SHLIB=lib$(LIBNAME); \
 671         SHLIB_SUFFIX=.dylib; \
 672         $(SYMLINK_SO)
 673 symlink.hpux32 symlink.hpux64:
 674         @ $(CALC_VERSIONS); \
 675         SHLIB=lib$(LIBNAME).sl; \
 676         $(SYMLINK_SO)
 677 # The following lines means those specific architectures do no symlinks
 678 symlink.cygwin symlib.alpha-osf1 symlink.tru64 symlink.tru64-rpath:
 679
 680 # Compatibility targets
 681 link_o.bsd-gcc-shared link_o.linux-shared link_o.gnu-shared: link_o.gnu
 682 link_a.bsd-gcc-shared link_a.linux-shared link_a.gnu-shared: link_a.gnu
 683 link_app.bsd-gcc-shared link_app.linux-shared link_app.gnu-shared: link_app.gnu
 684 symlink.bsd-gcc-shared symlink.linux-shared symlink.gnu-shared: symlink.gnu
 685 link_o.darwin-shared: link_o.darwin
 686 link_a.darwin-shared: link_a.darwin
 687 link_app.darwin-shared: link_app.darwin
 688 symlink.darwin-shared: symlink.darwin
 689 link_o.cygwin-shared: link_o.cygwin
 690 link_a.cygwin-shared: link_a.cygwin
 691 link_app.cygwin-shared: link_app.cygwin
 692 symlink.cygwin-shared: symlink.cygwin
 693 link_o.alpha-osf1-shared: link_o.alpha-osf1
 694 link_a.alpha-osf1-shared: link_a.alpha-osf1
 695 link_app.alpha-osf1-shared: link_app.alpha-osf1
 696 symlink.alpha-osf1-shared: symlink.alpha-osf1
 697 link_o.tru64-shared: link_o.tru64
 698 link_a.tru64-shared: link_a.tru64
 699 link_app.tru64-shared: link_app.tru64
 700 symlink.tru64-shared: symlink.tru64
 701 link_o.tru64-shared-rpath: link_o.tru64-rpath
 702 link_a.tru64-shared-rpath: link_a.tru64-rpath
 703 link_app.tru64-shared-rpath: link_app.tru64-rpath
 704 symlink.tru64-shared-rpath: symlink.tru64-rpath
 705 link_o.solaris-shared: link_o.solaris
 706 link_a.solaris-shared: link_a.solaris
 707 link_app.solaris-shared: link_app.solaris
 708 symlink.solaris-shared: symlink.solaris
 709 link_o.svr3-shared: link_o.svr3
 710 link_a.svr3-shared: link_a.svr3
 711 link_app.svr3-shared: link_app.svr3
 712 symlink.svr3-shared: symlink.svr3
 713 link_o.svr5-shared: link_o.svr3
 714 link_a.svr5-shared: link_a.svr3
 715 link_app.svr5-shared: link_app.svr3
 716 symlink.svr5-shared: symlink.svr3
 717 link_o.irix-shared: link_o.irix
 718 link_a.irix-shared: link_a.irix
 719 link_app.irix-shared: link_app.irix
 720 symlink.irix-shared: symlink.irix
 721 link_o.hpux-shared: link_o.hpux32
 722 link_a.hpux-shared: link_a.hpux32
 723 link_app.hpux-shared: link_app.hpux32
 724 symlink.hpux-shared: symlink.hpux32
 725 link_o.hpux64-shared: link_o.hpux64
 726 link_a.hpux64-shared: link_a.hpux64
 727 link_app.hpux64-shared: link_app.hpux64
 728 symlink.hpux64-shared: symlink.hpux64
 729 link_o.aix-shared: link_o.aix
 730 link_a.aix-shared: link_a.aix
 731 link_app.aix-shared: link_app.aix
 732 symlink.aix-shared: symlink.aix
 733 link_o.reliantunix-shared: link_o.reliantunix
 734 link_a.reliantunix-shared: link_a.reliantunix
 735 link_app.reliantunix-shared: link_app.reliantunix
 736 symlink.reliantunix-shared: symlink.reliantunix