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     LIBPATH=`for x in $$LIBDEPS; do if echo $$x | grep '^ *-L' > /dev/null 2>&1; then echo $$x | sed -e 's/^ *-L//'; fi; done | uniq`; \
  92     LIBPATH=`echo $$LIBPATH | sed -e 's/ /:/g'`; \
  93     LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
  94     $$LDCMD $(LDFLAGS) $$LDFLAGS -o $$APPNAME $(OBJECTS) $$LIBDEPS )
  95
  96 LINK_SO=        \
  97   ( $(DEBUG);   \
  98     nm -Pg $$SHOBJECTS | grep ' [BDT] ' | cut -f1 -d' ' > lib$(LIBNAME).exp; \
  99     LIBPATH=`for x in $$LIBDEPS; do if echo $$x | grep '^ *-L' > /dev/null 2>&1; then echo $$x | sed -e 's/^ *-L//'; fi; done | uniq`; \
 100     LIBPATH=`echo $$LIBPATH | sed -e 's/ /:/g'`; \
 101     LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
 102     $$SHAREDCMD $(SHARED_LDFLAGS) $$SHAREDFLAGS -o $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX \
 103         $$ALLSYMSFLAGS $$SHOBJECTS $$NOALLSYMSFLAGS $$LIBDEPS ) && \
 104   $(SYMLINK_SO); ( $(DEBUG); rm -f lib$(LIBNAME).exp )
 105 SYMLINK_SO=     \
 106         if [ -n "$$INHIBIT_SYMLINKS" ]; then :; else \
 107                 prev=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX; \
 108                 if [ -n "$$SHLIB_COMPAT" ]; then \
 109                         for x in $$SHLIB_COMPAT; do \
 110                                 ( $(DEBUG); rm -f $$SHLIB$$x$$SHLIB_SUFFIX; \
 111                                   ln -s $$prev $$SHLIB$$x$$SHLIB_SUFFIX ); \
 112                                 prev=$$SHLIB$$x$$SHLIB_SUFFIX; \
 113                         done; \
 114                 fi; \
 115                 if [ -n "$$SHLIB_SOVER" ]; then \
 116                         ( $(DEBUG); rm -f $$SHLIB$$SHLIB_SUFFIX; \
 117                           ln -s $$prev $$SHLIB$$SHLIB_SUFFIX ); \
 118                 fi; \
 119         fi
 120
 121 LINK_SO_A=      SHOBJECTS="lib$(LIBNAME).a $(LIBEXTRAS)"; $(LINK_SO)
 122 LINK_SO_O=      SHOBJECTS="$(LIBEXTRAS)"; $(LINK_SO)
 123 LINK_SO_A_VIA_O=        \
 124   SHOBJECTS=lib$(LIBNAME).o; \
 125   ALL=$$ALLSYMSFLAGS; ALLSYMSFLAGS=; NOALLSYMSFLAGS=; \
 126   ( $(DEBUG); \
 127     ld $(LDFLAGS) -r -o lib$(LIBNAME).o $$ALL lib$(LIBNAME).a $(LIBEXTRAS) ); \
 128   $(LINK_SO) && rm -f $(LIBNAME).o
 129 LINK_SO_A_UNPACKED=     \
 130   UNPACKDIR=link_tmp.$$$$; rm -rf $$UNPACKDIR; mkdir $$UNPACKDIR; \
 131   (cd $$UNPACKDIR; ar x ../lib$(LIBNAME).a) && \
 132   ([ -z "$(LIBEXTRAS)" ] || cp $(LIBEXTRAS) $$UNPACKDIR) && \
 133   SHOBJECTS=$$UNPACKDIR/*.o; \
 134   $(LINK_SO) && rm -rf $$UNPACKDIR
 135
 136 DETECT_GNU_LD=(${CC} -Wl,-V /dev/null 2>&1 | grep '^GNU ld' )>/dev/null
 137
 138 DO_GNU_SO=$(CALC_VERSIONS); \
 139         SHLIB=lib$(LIBNAME).so; \
 140         SHLIB_SUFFIX=; \
 141         LIBDEPS="$(LIBDEPS) -lc"; \
 142         ALLSYMSFLAGS='-Wl,--whole-archive'; \
 143         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 144         SHAREDFLAGS="-shared -Wl,-Bsymbolic -Wl,-soname=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-rpath,$(LIBRPATH)"; \
 145         SHAREDCMD='$(CC)'
 146 DO_GNU_APP=LDCMD=$(CC);\
 147         LDFLAGS="-Wl,-rpath,$(LIBRPATH)"; \
 148         LIBDEPS="$(LIBDEPS) -lc"; \
 149         APPNAME=$(APPNAME)
 150
 151 #This is rather special.  It's a special target with which one can link
 152 #applications without bothering with any features that have anything to
 153 #do with shared libraries, for example when linking against static
 154 #libraries.  It's mostly here to avoid a lot of conditionals everywhere
 155 #else...
 156 link_app.:
 157         LDCMD=$(CC); \
 158         LDFLAGS=""; \
 159         LIBDEPS="$(LIBDEPS)"; \
 160         APPNAME="$(APPNAME)"; \
 161         $(LINK_APP)
 162
 163 link_o.gnu:
 164         @ $(DO_GNU_SO); $(LINK_SO_O)
 165 link_a.gnu:
 166         @ $(DO_GNU_SO); $(LINK_SO_A)
 167 link_app.gnu:
 168         @ $(DO_GNU_APP); $(LINK_APP)
 169
 170 # For Darwin AKA Mac OS/X (dyld)
 171 link_o.darwin:
 172         @ $(CALC_VERSIONS); \
 173         SHLIB=lib$(LIBNAME); \
 174         SHLIB_SUFFIX=.dylib; \
 175         LIBDEPS="$(LIBDEPS) -lc"; \
 176         ALLSYMSFLAGS='-all_load'; \
 177         NOALLSYMSFLAGS=''; \
 178         SHAREDFLAGS="-dynamiclib"; \
 179         SHAREDCMD='$(CC)'; \
 180         if [ -n "$(LIBVERSION)" ]; then \
 181                 SHAREDFLAGS="$$SHAREDFLAGS -current_version $(LIBVERSION)"; \
 182         fi; \
 183         if [ -n "$$SHLIB_SOVER_NODOT" ]; then \
 184                 SHAREDFLAGS="$$SHAREDFLAGS -compatibility_version $$SHLIB_SOVER_NODOT"; \
 185         fi; \
 186         $(LINK_SO_O)
 187 link_a.darwin:
 188         @ $(CALC_VERSIONS); \
 189         SHLIB=lib$(LIBNAME); \
 190         SHLIB_SUFFIX=.dylib; \
 191         LIBDEPS="$(LIBDEPS) -lc"; \
 192         ALLSYMSFLAGS='-all_load'; \
 193         NOALLSYMSFLAGS=''; \
 194         SHAREDFLAGS="-dynamiclib"; \
 195         SHAREDCMD='$(CC)'; \
 196         if [ -n "$(LIBVERSION)" ]; then \
 197                 SHAREDFLAGS="$$SHAREDFLAGS -current_version $(LIBVERSION)"; \
 198         fi; \
 199         if [ -n "$$SHLIB_SOVER_NODOT" ]; then \
 200                 SHAREDFLAGS="$$SHAREDFLAGS -compatibility_version $$SHLIB_SOVER_NODOT"; \
 201         fi; \
 202         $(LINK_SO_A)
 203 link_app.darwin:
 204         LDCMD=$(CC);\
 205         LDFLAGS=""; \
 206         LIBDEPS="$(LIBDEPS) -lc"; \
 207         APPNAME="$(APPNAME)"; \
 208         $(LINK_APP)
 209
 210 link_o.cygwin:
 211         @ $(CALC_VERSIONS); \
 212         INHIBIT_SYMLINKS=yes; \
 213         SHLIB=cyg$(LIBNAME); \
 214         expr $(PLATFORM) : 'mingw' > /dev/null && SHLIB=$(LIBNAME)eay32; \
 215         SHLIB_SUFFIX=.dll; \
 216         LIBDEPS="$(LIBDEPS)"; \
 217         SHLIB_SOVER=-$(LIBVERSION); \
 218         ALLSYMSFLAGS='-Wl,--whole-archive'; \
 219         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 220         SHAREDFLAGS="-Wl,-Bsymbolic -Wl,--out-implib,lib$(LIBNAME).dll.a"; \
 221         SHAREDCMD='${CC}'; \
 222         $(LINK_SO_O)
 223 link_a.cygwin:
 224         @ $(CALC_VERSIONS); \
 225         INHIBIT_SYMLINKS=yes; \
 226         SHLIB=cyg$(LIBNAME); \
 227         expr $(PLATFORM) : 'mingw' > /dev/null && SHLIB=$(LIBNAME)eay32; \
 228         SHLIB_SUFFIX=.dll; \
 229         LIBDEPS="$(LIBDEPS)"; \
 230         SHLIB_SOVER=; \
 231         ALLSYMSFLAGS='-Wl,--whole-archive'; \
 232         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 233         SHAREDFLAGS="-Wl,-Bsymbolic -Wl,--out-implib,lib$(LIBNAME).dll.a"; \
 234         SHAREDCMD='${CC}'; \
 235         $(LINK_SO_A)
 236 link_app.cygwin:
 237         LDCMD=$(CC);\
 238         LDFLAGS=""; \
 239         LIBDEPS="$(LIBDEPS)"; \
 240         APPNAME="$(APPNAME)"; \
 241         $(LINK_APP)
 242
 243 link_o.alpha-osf1:
 244         @ if ${DETECT_GNU_LD}; then \
 245                 $(DO_GNU_SO); \
 246         else \
 247                 SHLIB=lib$(LIBNAME).so; \
 248                 SHLIB_SUFFIX=; \
 249                 LIBDEPS="$(LIBDEPS) -lc"; \
 250                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 251                 if [ -n "$$SHLIB_HIST" ]; then \
 252                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 253                 else \
 254                         SHLIB_HIST="$(LIBVERSION)"; \
 255                 fi; \
 256                 SHLIB_SOVER=; \
 257                 ALLSYMSFLAGS='-all'; \
 258                 NOALLSYMSFLAGS='-none'; \
 259                 SHAREDFLAGS="-shared"; \
 260                 SHAREDCMD='$(CC)'; \
 261                 if [ -n "$$SHLIB_HIST" ]; then \
 262                         SHAREDFLAGS="$$SHAREDFLAGS -set_version \"$$SHLIB_HIST\""; \
 263                 fi; \
 264         fi; \
 265         $(LINK_SO_O)
 266 link_a.alpha-osf1:
 267         @ if ${DETECT_GNU_LD}; then \
 268                 $(DO_GNU_SO); \
 269         else \
 270                 SHLIB=lib$(LIBNAME).so; \
 271                 SHLIB_SUFFIX=; \
 272                 LIBDEPS="$(LIBDEPS) -lc"; \
 273                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 274                 if [ -n "$$SHLIB_HIST" ]; then \
 275                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 276                 else \
 277                         SHLIB_HIST="$(LIBVERSION)"; \
 278                 fi; \
 279                 SHLIB_SOVER=; \
 280                 ALLSYMSFLAGS='-all'; \
 281                 NOALLSYMSFLAGS='-none'; \
 282                 SHAREDFLAGS="-shared"; \
 283                 SHAREDCMD='$(CC)'; \
 284                 if [ -n "$$SHLIB_HIST" ]; then \
 285                         SHAREDFLAGS="$$SHAREDFLAGS -set_version \"$$SHLIB_HIST\""; \
 286                 fi; \
 287         fi; \
 288         $(LINK_SO_A)
 289 link_app.alpha-osf1:
 290         @ if ${DETECT_GNU_LD}; then \
 291                 $(DO_GNU_APP); \
 292         else \
 293                 LDCMD=$(CC);\
 294                 LDFLAGS=""; \
 295                 LIBDEPS="$(LIBDEPS) -lc"; \
 296                 APPNAME="$(APPNAME)"
 297         fi; \
 298         $(LINK_APP)
 299
 300 # The difference between alpha-osf1-shared and tru64-shared is the `-msym'
 301 # option passed to the linker.
 302 link_o.tru64:
 303         @ if ${DETECT_GNU_LD}; then \
 304                 $(DO_GNU_SO); \
 305         else \
 306                 SHLIB=lib$(LIBNAME).so; \
 307                 SHLIB_SUFFIX=; \
 308                 LIBDEPS="$(LIBDEPS) -lc"; \
 309                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 310                 if [ -n "$$SHLIB_HIST" ]; then \
 311                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 312                 else \
 313                         SHLIB_HIST="$(LIBVERSION)"; \
 314                 fi; \
 315                 SHLIB_SOVER=; \
 316                 ALLSYMSFLAGS='-all'; \
 317                 NOALLSYMSFLAGS='-none'; \
 318                 SHAREDFLAGS="-shared -msym -rpath $(LIBRPATH)"; \
 319                 SHAREDCMD='$(CC)'; \
 320                 if [ -n "$$SHLIB_HIST" ]; then \
 321                         SHAREDFLAGS="$$SHAREDFLAGS -set_version \"$$SHLIB_HIST\""; \
 322                 fi; \
 323         fi; \
 324         $(LINK_SO_O)
 325 link_a.tru64:
 326         @ if ${DETECT_GNU_LD}; then \
 327                 $(DO_GNU_SO); \
 328         else \
 329                 SHLIB=lib$(LIBNAME).so; \
 330                 SHLIB_SUFFIX=; \
 331                 LIBDEPS="$(LIBDEPS) -lc"; \
 332                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 333                 if [ -n "$$SHLIB_HIST" ]; then \
 334                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 335                 else \
 336                         SHLIB_HIST="$(LIBVERSION)"; \
 337                 fi; \
 338                 SHLIB_SOVER=; \
 339                 ALLSYMSFLAGS='-all'; \
 340                 NOALLSYMSFLAGS='-none'; \
 341                 SHAREDFLAGS="-shared -msym -rpath $(LIBRPATH)"; \
 342                 SHAREDCMD='$(CC)'; \
 343                 if [ -n "$$SHLIB_HIST" ]; then \
 344                         SHAREDFLAGS="$$SHAREDFLAGS -set_version \"$$SHLIB_HIST\""; \
 345                 fi; \
 346         fi; \
 347         $(LINK_SO_A)
 348 link_app.tru64:
 349         @ if ${DETECT_GNU_LD}; then \
 350                 $(DO_GNU_APP); \
 351         else \
 352                 LDCMD=$(CC);\
 353                 LDFLAGS="-rpath $(LIBRPATH)"; \
 354                 LIBDEPS="$(LIBDEPS) -lc"; \
 355                 APPNAME="$(APPNAME)"; \
 356         fi; \
 357         $(LINK_APP)
 358
 359 # The difference between tru64-shared and tru64-shared-rpath is the
 360 # -rpath ${LIBRPATH} passed to the linker.
 361 link_o.tru64-rpath:
 362         @ if ${DETECT_GNU_LD}; then \
 363                 $(DO_GNU_SO); \
 364         else \
 365                 SHLIB=lib$(LIBNAME).so; \
 366                 SHLIB_SUFFIX=; \
 367                 LIBDEPS="$(LIBDEPS) -lc"; \
 368                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 369                 if [ -n "$$SHLIB_HIST" ]; then \
 370                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 371                 else \
 372                         SHLIB_HIST="$(LIBVERSION)"; \
 373                 fi; \
 374                 SHLIB_SOVER=; \
 375                 ALLSYMSFLAGS='-all'; \
 376                 NOALLSYMSFLAGS='-none'; \
 377                 SHAREDFLAGS="-shared -msym -rpath $(LIBRPATH)"; \
 378                 SHAREDCMD='$(CC)'; \
 379                 if [ -n "$$SHLIB_HIST" ]; then \
 380                         SHAREDFLAGS="$$SHAREDFLAGS -set_version \"$$SHLIB_HIST\""; \
 381                 fi; \
 382         fi; \
 383         $(LINK_SO_O)
 384 link_a.tru64-rpath:
 385         @ if ${DETECT_GNU_LD}; then \
 386                 $(DO_GNU_SO); \
 387         else \
 388                 SHLIB=lib$(LIBNAME).so; \
 389                 SHLIB_SUFFIX=; \
 390                 LIBDEPS="$(LIBDEPS) -lc"; \
 391                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 392                 if [ -n "$$SHLIB_HIST" ]; then \
 393                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 394                 else \
 395                         SHLIB_HIST="$(LIBVERSION)"; \
 396                 fi; \
 397                 SHLIB_SOVER=; \
 398                 ALLSYMSFLAGS='-all'; \
 399                 NOALLSYMSFLAGS='-none'; \
 400                 SHAREDFLAGS="-shared -msym -rpath $(LIBRPATH)"; \
 401                 SHAREDCMD='$(CC)'; \
 402                 if [ -n "$$SHLIB_HIST" ]; then \
 403                         SHAREDFLAGS="$$SHAREDFLAGS -set_version \"$$SHLIB_HIST\""; \
 404                 fi; \
 405         fi; \
 406         $(LINK_SO_A)
 407 link_app.tru64-rpath:
 408         @ if ${DETECT_GNU_LD}; then \
 409                 $(DO_GNU_APP); \
 410         else \
 411                 LDCMD=$(CC);\
 412                 LDFLAGS="-rpath $(LIBRPATH)"; \
 413                 LIBDEPS="$(LIBDEPS) -lc"; \
 414                 APPNAME="$(APPNAME)"; \
 415         fi; \
 416         $(LINK_APP)
 417
 418 link_o.solaris:
 419         @ if ${DETECT_GNU_LD}; then \
 420                 $(DO_GNU_SO); \
 421         else \
 422                 $(CALC_VERSIONS); \
 423                 MINUSZ='-z '; \
 424                 (${CC} -v 2>&1 | grep gcc) > /dev/null && MINUSZ='-Wl,-z,'; \
 425                 SHLIB=lib$(LIBNAME).so; \
 426                 SHLIB_SUFFIX=; \
 427                 LIBDEPS="$(LIBDEPS) -lc"; \
 428                 ALLSYMSFLAGS="$${MINUSZ}allextract"; \
 429                 NOALLSYMSFLAGS="$${MINUSZ}defaultextract"; \
 430                 SHAREDFLAGS="-G -dy -z text -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -R $(LIBRPATH)"; \
 431                 SHAREDCMD='$(CC)'; \
 432         fi; \
 433         $(LINK_SO_O)
 434 link_a.solaris:
 435         @ if ${DETECT_GNU_LD}; then \
 436                 $(DO_GNU_SO); \
 437         else \
 438                 $(CALC_VERSIONS); \
 439                 MINUSZ='-z '; \
 440                 (${CC} -v 2>&1 | grep gcc) > /dev/null && MINUSZ='-Wl,-z,'; \
 441                 SHLIB=lib$(LIBNAME).so; \
 442                 SHLIB_SUFFIX=;\
 443                 LIBDEPS="$(LIBDEPS) -lc"; \
 444                 ALLSYMSFLAGS="$${MINUSZ}allextract"; \
 445                 NOALLSYMSFLAGS="$${MINUSZ}defaultextract"; \
 446                 SHAREDFLAGS="-G -dy -z text -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -R $(LIBRPATH)"; \
 447                 SHAREDCMD='$(CC)'; \
 448         fi; \
 449         $(LINK_SO_A)
 450 link_app.solaris:
 451         @ if ${DETECT_GNU_LD}; then \
 452                 $(DO_GNU_APP); \
 453         else \
 454                 LDCMD=$(CC);\
 455                 LDFLAGS="-R $(LIBRPATH)"; \
 456                 LIBDEPS="$(LIBDEPS) -lc"; \
 457                 APPNAME="$(APPNAME)"; \
 458         fi; \
 459         $(LINK_APP)
 460
 461 # OpenServer 5 native compilers used
 462 link_o.svr3:
 463         @ if ${DETECT_GNU_LD}; then \
 464                 $(DO_GNU_SO); \
 465         else \
 466                 $(CALC_VERSIONS); \
 467                 SHLIB=lib$(LIBNAME).so; \
 468                 SHLIB_SUFFIX=; \
 469                 LIBDEPS="$(LIBDEPS) -lc"; \
 470                 ALLSYMSFLAGS=''; \
 471                 NOALLSYMSFLAGS=''; \
 472                 SHAREDFLAGS="-G -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 473                 SHAREDCMD='$(CC)'; \
 474         fi; \
 475         $(LINK_SO_O)
 476 link_a.svr3:
 477         @ if ${DETECT_GNU_LD}; then \
 478                 $(DO_GNU_SO); \
 479         else \
 480                 $(CALC_VERSIONS); \
 481                 SHLIB=lib$(LIBNAME).so; \
 482                 SHLIB_SUFFIX=; \
 483                 LIBDEPS="$(LIBDEPS) -lc"; \
 484                 ALLSYMSFLAGS=''; \
 485                 NOALLSYMSFLAGS=''; \
 486                 SHAREDFLAGS="-G -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 487                 SHAREDCMD='$(CC)'; \
 488         fi; \
 489         $(LINK_SO_A_UNPACKED)
 490 link_app.svr3:
 491         @ if ${DETECT_GNU_LD}; then \
 492                 $(DO_GNU_APP); \
 493         else \
 494                 LDCMD=$(CC);\
 495                 LDFLAGS=""; \
 496                 LIBDEPS="$(LIBDEPS) -lc"; \
 497                 APPNAME="$(APPNAME)"; \
 498         fi; \
 499         $(LINK_APP)
 500
 501 # UnixWare 7 and OpenUNIX 8 native compilers used
 502 link_o.svr5:
 503         @ if ${DETECT_GNU_LD}; then \
 504                 $(DO_GNU_SO); \
 505         else \
 506                 $(CALC_VERSIONS); \
 507                 SHARE_FLAG='-G'; \
 508                 (${CC} -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
 509                 SHLIB=lib$(LIBNAME).so; \
 510                 SHLIB_SUFFIX=; \
 511                 LIBDEPS="$(LIBDEPS) -lc"; \
 512                 ALLSYMSFLAGS=''; \
 513                 NOALLSYMSFLAGS=''; \
 514                 SHAREDFLAGS="$${SHARE_FLAG} -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 515                 SHAREDCMD='$(CC)'; \
 516         fi; \
 517         $(LINK_SO_O)
 518 link_a.svr5:
 519         @ if ${DETECT_GNU_LD}; then \
 520                 $(DO_GNU_SO); \
 521         else \
 522                 $(CALC_VERSIONS); \
 523                 SHARE_FLAG='-G'; \
 524                 (${CC} -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
 525                 SHLIB=lib$(LIBNAME).so; \
 526                 SHLIB_SUFFIX=; \
 527                 LIBDEPS="$(LIBDEPS) -lc"; \
 528                 ALLSYMSFLAGS=''; \
 529                 NOALLSYMSFLAGS=''; \
 530                 SHAREDFLAGS="$${SHARE_FLAG} -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 531                 SHAREDCMD='$(CC)'; \
 532         fi; \
 533         $(LINK_SO_A_UNPACKED)
 534 link_app.svr5:
 535         @ if ${DETECT_GNU_LD}; then \
 536                 $(DO_GNU_APP); \
 537         else \
 538                 LDCMD=$(CC);\
 539                 LDFLAGS=""; \
 540                 LIBDEPS="$(LIBDEPS) -lc"; \
 541                 APPNAME="$(APPNAME)"; \
 542         fi; \
 543         $(LINK_APP)
 544
 545 link_o.irix:
 546         @ if ${DETECT_GNU_LD}; then \
 547                 $(DO_GNU_SO); \
 548         else \
 549                 $(CALC_VERSIONS); \
 550                 SHLIB=lib$(LIBNAME).so; \
 551                 SHLIB_SUFFIX=; \
 552                 LIBDEPS="$(LIBDEPS) -lc"; \
 553                 MINUSWL=""; \
 554                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSWL="-Wl,"; \
 555                 ALLSYMSFLAGS="$${MINUSWL}-all"; \
 556                 NOALLSYMSFLAGS="$${MINUSWL}-notall"; \
 557                 SHAREDFLAGS="-shared -Wl,-soname,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-rpath,$(LIBRPATH)"; \
 558                 SHAREDCMD='$(CC)'; \
 559         fi; \
 560         $(LINK_SO_O)
 561 link_a.irix:
 562         @ if ${DETECT_GNU_LD}; then \
 563                 $(DO_GNU_SO); \
 564         else \
 565                 $(CALC_VERSIONS); \
 566                 SHLIB=lib$(LIBNAME).so; \
 567                 SHLIB_SUFFIX=; \
 568                 LIBDEPS="$(LIBDEPS) -lc"; \
 569                 MINUSWL=""; \
 570                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSWL="-Wl,"; \
 571                 ALLSYMSFLAGS="$${MINUSWL}-all"; \
 572                 NOALLSYMSFLAGS="$${MINUSWL}-notall"; \
 573                 SHAREDFLAGS="-shared -Wl,-soname,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-rpath,$(LIBRPATH)"; \
 574                 SHAREDCMD='$(CC)'; \
 575         fi; \
 576         $(LINK_SO_A)
 577 link_app.irix:
 578         @ if ${DETECT_GNU_LD}; then \
 579                 $(DO_GNU_APP); \
 580         else \
 581                 LDCMD=$(CC);\
 582                 LDFLAGS="-Wl,-rpath,$(LIBRPATH)"; \
 583                 LIBDEPS="$(LIBDEPS) -lc"; \
 584                 APPNAME="$(APPNAME)"; \
 585         fi; \
 586         $(LINK_APP)
 587
 588 # 32-bit PA-RISC HP-UX embeds the -L pathname of libs we link with, so
 589 # we compensate for it with +cdp ../: and +cdp ./:. Yes, these rewrite
 590 # rules imply that we can only link one level down in catalog structure,
 591 # but that's what takes place for the moment of this writing. +cdp option
 592 # was introduced in HP-UX 11.x and applies in 32-bit PA-RISC link
 593 # editor context only [it's simply ignored in other cases, which are all
 594 # ELFs by the way].
 595 #
 596 link_o.hpux:
 597         @if ${DETECT_GNU_LD}; then $(DO_GNU_SO); else \
 598         $(CALC_VERSIONS); \
 599         SHLIB=lib$(LIBNAME).sl; \
 600         expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
 601         SHLIB_SUFFIX=; \
 602         LIBDEPS="$(LIBDEPS)"; \
 603         ALLSYMSFLAGS='-Wl,-Fl'; \
 604         NOALLSYMSFLAGS=''; \
 605         expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
 606         SHAREDFLAGS="-Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+cdp,../:,+cdp,./:,+h,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,+b,$(LIBRPATH)"; \
 607         SHAREDCMD=$(CC); \
 608         fi; \
 609         $(LINK_SO_O) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
 610 link_a.hpux:
 611         @if ${DETECT_GNU_LD}; then $(DO_GNU_SO); else \
 612         $(CALC_VERSIONS); \
 613         SHLIB=lib$(LIBNAME).sl; \
 614         expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
 615         SHLIB_SUFFIX=; \
 616         LIBDEPS="$(LIBDEPS)"; \
 617         ALLSYMSFLAGS='-Wl,-Fl'; \
 618         NOALLSYMSFLAGS=''; \
 619         expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
 620         SHAREDFLAGS="-Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+cdp,../:,+cdp,./:,+h,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,+b,$(LIBRPATH)"; \
 621         SHAREDCMD='$(CC)'; \
 622         fi; \
 623         $(LINK_SO_A) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
 624 link_app.hpux:
 625         @if ${DETECT_GNU_LD}; then $(DO_GNU_APP); else \
 626         LDCMD=$(CC);\
 627         LDFLAGS="-Wl,+s,+cdp,../:,+cdp,./:,+b,$(LIBRPATH)"; \
 628         LIBDEPS="$(LIBDEPS)"; \
 629         APPNAME="$(APPNAME)"; \
 630         fi; \
 631         $(LINK_APP)
 632
 633 link_o.aix:
 634         @ $(CALC_VERSIONS); \
 635         SHLIB=lib$(LIBNAME).so; \
 636         SHLIB_SUFFIX=; \
 637         LIBDEPS="$(LIBDEPS) -lc"; \
 638         ALLSYMSFLAGS='-bnogc'; \
 639         NOALLSYMSFLAGS=''; \
 640         SHAREDFLAGS='-G -bE:lib$(LIBNAME).exp -bM:SRE -blibpath:$(LIBRPATH)'; \
 641         SHAREDCMD='$(CC)'; \
 642         $(LINK_SO_O)
 643 link_a.aix:
 644         @ $(CALC_VERSIONS); \
 645         SHLIB=lib$(LIBNAME).so; \
 646         SHLIB_SUFFIX=; \
 647         LIBDEPS="$(LIBDEPS) -lc"; \
 648         ALLSYMSFLAGS='-bnogc'; \
 649         NOALLSYMSFLAGS=''; \
 650         SHAREDFLAGS='-G -bE:lib$(LIBNAME).exp -bM:SRE -blibpath:$(LIBRPATH)'; \
 651         SHAREDCMD='$(CC)'; \
 652         $(LINK_SO_A_VIA_O)
 653 link_app.aix:
 654         LDCMD=$(CC);\
 655         LDFLAGS="-blibpath:$(LIBRPATH)"; \
 656         LIBDEPS="$(LIBDEPS) -lc"; \
 657         APPNAME="$(APPNAME)"
 658         $(LINK_APP)
 659
 660 link_o.reliantunix:
 661         @ $(CALC_VERSIONS); \
 662         SHLIB=lib$(LIBNAME).so; \
 663         SHLIB_SUFFIX=; \
 664         LIBDEPS="$(LIBDEPS) -lc"; \
 665         ALLSYMSFLAGS=; \
 666         NOALLSYMSFLAGS=''; \
 667         SHAREDFLAGS='-G'; \
 668         SHAREDCMD='$(CC)'; \
 669         $(LINK_SO_O)
 670 link_a.reliantunix:
 671         @ $(CALC_VERSIONS); \
 672         SHLIB=lib$(LIBNAME).so; \
 673         SHLIB_SUFFIX=; \
 674         LIBDEPS="$(LIBDEPS) -lc"; \
 675         ALLSYMSFLAGS=; \
 676         NOALLSYMSFLAGS=''; \
 677         SHAREDFLAGS='-G'; \
 678         SHAREDCMD='$(CC)'; \
 679         $(LINK_SO_A_UNPACKED)
 680 link_app.reliantunix:
 681         LDCMD=$(CC);\
 682         LDFLAGS=""; \
 683         LIBDEPS="$(LIBDEPS) -lc"; \
 684         APPNAME="$(APPNAME)"
 685         $(LINK_APP)
 686
 687 # Targets to build symbolic links when needed
 688 symlink.gnu symlink.solaris symlink.svr3 symlink.svr5 symlink.irix \
 689 symlink.aix symlink.reliantunix:
 690         @ $(CALC_VERSIONS); \
 691         SHLIB=lib$(LIBNAME).so; \
 692         $(SYMLINK_SO)
 693 symlink.darwin:
 694         @ $(CALC_VERSIONS); \
 695         SHLIB=lib$(LIBNAME); \
 696         SHLIB_SUFFIX=.dylib; \
 697         $(SYMLINK_SO)
 698 symlink.hpux:
 699         @ $(CALC_VERSIONS); \
 700         SHLIB=lib$(LIBNAME).sl; \
 701         expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
 702         $(SYMLINK_SO)
 703 # The following lines means those specific architectures do no symlinks
 704 symlink.cygwin symlib.alpha-osf1 symlink.tru64 symlink.tru64-rpath:
 705
 706 # Compatibility targets
 707 link_o.bsd-gcc-shared link_o.linux-shared link_o.gnu-shared: link_o.gnu
 708 link_a.bsd-gcc-shared link_a.linux-shared link_a.gnu-shared: link_a.gnu
 709 link_app.bsd-gcc-shared link_app.linux-shared link_app.gnu-shared: link_app.gnu
 710 symlink.bsd-gcc-shared symlink.linux-shared symlink.gnu-shared: symlink.gnu
 711 link_o.darwin-shared: link_o.darwin
 712 link_a.darwin-shared: link_a.darwin
 713 link_app.darwin-shared: link_app.darwin
 714 symlink.darwin-shared: symlink.darwin
 715 link_o.cygwin-shared: link_o.cygwin
 716 link_a.cygwin-shared: link_a.cygwin
 717 link_app.cygwin-shared: link_app.cygwin
 718 symlink.cygwin-shared: symlink.cygwin
 719 link_o.alpha-osf1-shared: link_o.alpha-osf1
 720 link_a.alpha-osf1-shared: link_a.alpha-osf1
 721 link_app.alpha-osf1-shared: link_app.alpha-osf1
 722 symlink.alpha-osf1-shared: symlink.alpha-osf1
 723 link_o.tru64-shared: link_o.tru64
 724 link_a.tru64-shared: link_a.tru64
 725 link_app.tru64-shared: link_app.tru64
 726 symlink.tru64-shared: symlink.tru64
 727 link_o.tru64-shared-rpath: link_o.tru64-rpath
 728 link_a.tru64-shared-rpath: link_a.tru64-rpath
 729 link_app.tru64-shared-rpath: link_app.tru64-rpath
 730 symlink.tru64-shared-rpath: symlink.tru64-rpath
 731 link_o.solaris-shared: link_o.solaris
 732 link_a.solaris-shared: link_a.solaris
 733 link_app.solaris-shared: link_app.solaris
 734 symlink.solaris-shared: symlink.solaris
 735 link_o.svr3-shared: link_o.svr3
 736 link_a.svr3-shared: link_a.svr3
 737 link_app.svr3-shared: link_app.svr3
 738 symlink.svr3-shared: symlink.svr3
 739 link_o.svr5-shared: link_o.svr5
 740 link_a.svr5-shared: link_a.svr5
 741 link_app.svr5-shared: link_app.svr5
 742 symlink.svr5-shared: symlink.svr5
 743 link_o.irix-shared: link_o.irix
 744 link_a.irix-shared: link_a.irix
 745 link_app.irix-shared: link_app.irix
 746 symlink.irix-shared: symlink.irix
 747 link_o.hpux-shared: link_o.hpux
 748 link_a.hpux-shared: link_a.hpux
 749 link_app.hpux-shared: link_app.hpux
 750 symlink.hpux-shared: symlink.hpux
 751 link_o.aix-shared: link_o.aix
 752 link_a.aix-shared: link_a.aix
 753 link_app.aix-shared: link_app.aix
 754 symlink.aix-shared: symlink.aix
 755 link_o.reliantunix-shared: link_o.reliantunix
 756 link_a.reliantunix-shared: link_a.reliantunix
 757 link_app.reliantunix-shared: link_app.reliantunix
 758 symlink.reliantunix-shared: symlink.reliantunix