Makefile.shared

   1 #
   2 # Helper makefile to link shared libraries in a portable way.
   3 # This is much simpler than libtool, and hopefully not too error-prone.
   4 #
   5 # The following variables need to be set on the command line to build
   6 # properly
   7
   8 # CC contains the current compiler.  This one MUST be defined
   9 CC=cc
  10 CFLAGS=$(CFLAG)
  11 # LDFLAGS contains flags to be used when temporary object files (when building
  12 # shared libraries) are created, or when an application is linked.
  13 # SHARED_LDFLAGS contains flags to be used when the shared library is created.
  14 LDFLAGS=
  15 SHARED_LDFLAGS=
  16
  17 # LIBNAME contains just the name of the library, without prefix ("lib"
  18 # on Unix, "cyg" for certain forms under Cygwin...) or suffix (.a, .so,
  19 # .dll, ...).  This one MUST have a value when using this makefile to
  20 # build shared libraries.
  21 # For example, to build libfoo.so, you need to do the following:
  22 #LIBNAME=foo
  23 LIBNAME=
  24
  25 # APPNAME contains just the name of the application, without suffix (""
  26 # on Unix, ".exe" on Windows, ...).  This one MUST have a value when using
  27 # this makefile to build applications.
  28 # For example, to build foo, you need to do the following:
  29 #APPNAME=foo
  30 APPNAME=
  31
  32 # OBJECTS contains all the object files to link together into the application.
  33 # This must contain at least one object file.
  34 #OBJECTS=foo.o
  35 OBJECTS=
  36
  37 # LIBEXTRAS contains extra modules to link together with the library.
  38 # For example, if a second library, say libbar.a needs to be linked into
  39 # libfoo.so, you need to do the following:
  40 #LIBEXTRAS=libbar.a
  41 # Note that this MUST be used when using the link_o targets, to hold the
  42 # names of all object files that go into the target library.
  43 LIBEXTRAS=
  44
  45 # LIBVERSION contains the current version of the library.
  46 # For example, to build libfoo.so.1.2, you need to do the following:
  47 #LIBVERSION=1.2
  48 LIBVERSION=
  49
  50 # LIBCOMPATVERSIONS contains the compatibility versions (a list) of
  51 # the library.  They MUST be in decreasing order.
  52 # For example, if libfoo.so.1.2.1 is backward compatible with libfoo.so.1.2
  53 # and libfoo.so.1, you need to do the following:
  54 #LIBCOMPATVERSIONS=1.2 1
  55 # Note that on systems that use sonames, the last number will appear as
  56 # part of it.
  57 # It's also possible, for systems that support it (Tru64, for example),
  58 # to add extra compatibility info with more precision, by adding a second
  59 # list of versions, separated from the first with a semicolon, like this:
  60 #LIBCOMPATVERSIONS=1.2 1;1.2.0 1.1.2 1.1.1 1.1.0 1.0.0
  61 LIBCOMPATVERSIONS=
  62
  63 # LIBDEPS contains all the flags necessary to cover all necessary
  64 # dependencies to other libraries.
  65 LIBDEPS=
  66
  67 #------------------------------------------------------------------------------
  68 # The rest is private to this makefile.
  69
  70 SET_X=:
  71 #SET_X=set -x
  72
  73 top:
  74         echo "Trying to use this makefile interactively?  Don't."
  75
  76 CALC_VERSIONS=  \
  77         SHLIB_COMPAT=; SHLIB_SOVER=; \
  78         if [ -n "$(LIBVERSION)$(LIBCOMPATVERSIONS)" ]; then \
  79                 prev=""; \
  80                 for v in `echo "$(LIBVERSION) $(LIBCOMPATVERSIONS)" | cut -d';' -f1`; do \
  81                         SHLIB_SOVER_NODOT=$$v; \
  82                         SHLIB_SOVER=.$$v; \
  83                         if [ -n "$$prev" ]; then \
  84                                 SHLIB_COMPAT="$$SHLIB_COMPAT .$$prev"; \
  85                         fi; \
  86                         prev=$$v; \
  87                 done; \
  88         fi
  89
  90 LINK_APP=       \
  91   ( $(SET_X);   \
  92     LIBDEPS=$${LIBDEPS:-$(LIBDEPS)}; \
  93     LIBPATH=`for x in $$LIBDEPS; do if echo $$x | grep '^ *-L' > /dev/null 2>&1; then echo $$x | sed -e 's/^ *-L//'; fi; done | uniq`; \
  94     LIBPATH=`echo $$LIBPATH | sed -e 's/ /:/g'`; \
  95     LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
  96     $${LDCMD:=$(CC)} $${LDFLAGS:=$(CFLAGS)} \
  97         -o $${APPNAME:=$(APPNAME)} $(OBJECTS) $$LIBDEPS )
  98
  99 LINK_SO=        \
 100   ( $(SET_X);   \
 101     LIBDEPS=$${LIBDEPS:-$(LIBDEPS)}; \
 102     nm -Pg $$SHOBJECTS | grep ' [BDT] ' | cut -f1 -d' ' > lib$(LIBNAME).exp; \
 103     LIBPATH=`for x in $$LIBDEPS; do if echo $$x | grep '^ *-L' > /dev/null 2>&1; then echo $$x | sed -e 's/^ *-L//'; fi; done | uniq`; \
 104     LIBPATH=`echo $$LIBPATH | sed -e 's/ /:/g'`; \
 105     LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
 106     $${SHAREDCMD:=$(CC)} $${SHAREDFLAGS:=$(CFLAGS) $(SHARED_LDFLAGS)} \
 107         -o $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX \
 108         $$ALLSYMSFLAGS $$SHOBJECTS $$NOALLSYMSFLAGS $$LIBDEPS \
 109   ) && $(SYMLINK_SO); \
 110   ( $(SET_X); rm -f lib$(LIBNAME).exp )
 111
 112 SYMLINK_SO=     \
 113         if [ -n "$$INHIBIT_SYMLINKS" ]; then :; else \
 114                 prev=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX; \
 115                 if [ -n "$$SHLIB_COMPAT" ]; then \
 116                         for x in $$SHLIB_COMPAT; do \
 117                                 ( $(SET_X); rm -f $$SHLIB$$x$$SHLIB_SUFFIX; \
 118                                   ln -s $$prev $$SHLIB$$x$$SHLIB_SUFFIX ); \
 119                                 prev=$$SHLIB$$x$$SHLIB_SUFFIX; \
 120                         done; \
 121                 fi; \
 122                 if [ -n "$$SHLIB_SOVER" ]; then \
 123                         ( $(SET_X); rm -f $$SHLIB$$SHLIB_SUFFIX; \
 124                           ln -s $$prev $$SHLIB$$SHLIB_SUFFIX ); \
 125                 fi; \
 126         fi
 127
 128 LINK_SO_A=      SHOBJECTS="lib$(LIBNAME).a $(LIBEXTRAS)"; $(LINK_SO)
 129 LINK_SO_O=      SHOBJECTS="$(LIBEXTRAS)"; $(LINK_SO)
 130
 131 LINK_SO_A_VIA_O=        \
 132   SHOBJECTS=lib$(LIBNAME).o; \
 133   ALL=$$ALLSYMSFLAGS; ALLSYMSFLAGS=; NOALLSYMSFLAGS=; \
 134   ( $(SET_X); \
 135     ld $(LDFLAGS) -r -o lib$(LIBNAME).o $$ALL lib$(LIBNAME).a $(LIBEXTRAS) ); \
 136   $(LINK_SO) && rm -f $(LIBNAME).o
 137
 138 LINK_SO_A_UNPACKED=     \
 139   UNPACKDIR=link_tmp.$$$$; rm -rf $$UNPACKDIR; mkdir $$UNPACKDIR; \
 140   (cd $$UNPACKDIR; ar x ../lib$(LIBNAME).a) && \
 141   ([ -z "$(LIBEXTRAS)" ] || cp $(LIBEXTRAS) $$UNPACKDIR) && \
 142   SHOBJECTS=$$UNPACKDIR/*.o; \
 143   $(LINK_SO) && rm -rf $$UNPACKDIR
 144
 145 DETECT_GNU_LD=(${CC} -Wl,-V /dev/null 2>&1 | grep '^GNU ld' )>/dev/null
 146
 147 DO_GNU_SO=$(CALC_VERSIONS); \
 148         SHLIB=lib$(LIBNAME).so; \
 149         SHLIB_SUFFIX=; \
 150         ALLSYMSFLAGS='-Wl,--whole-archive'; \
 151         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 152         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-Bsymbolic -Wl,-soname=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"
 153
 154 DO_GNU_APP=LDFLAGS="$(CFLAGS) -Wl,-rpath,$(LIBRPATH)"
 155
 156 #This is rather special.  It's a special target with which one can link
 157 #applications without bothering with any features that have anything to
 158 #do with shared libraries, for example when linking against static
 159 #libraries.  It's mostly here to avoid a lot of conditionals everywhere
 160 #else...
 161 link_app.:
 162         $(LINK_APP)
 163
 164 link_o.gnu:
 165         @ $(DO_GNU_SO); $(LINK_SO_O)
 166 link_a.gnu:
 167         @ $(DO_GNU_SO); $(LINK_SO_A)
 168 link_app.gnu:
 169         @ $(DO_GNU_APP); $(LINK_APP)
 170
 171 link_o.bsd:
 172         @if ${DETECT_GNU_LD}; then $(DO_GNU_SO); else \
 173         $(CALC_VERSIONS); \
 174         SHLIB=lib$(LIBNAME).so; \
 175         SHLIB_SUFFIX=; \
 176         LIBDEPS=" "; \
 177         ALLSYMSFLAGS="-Wl,-Bforcearchive"; \
 178         NOALLSYMSFLAGS=; \
 179         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -nostdlib"; \
 180         fi; $(LINK_SO_O)
 181 link_a.bsd:
 182         @if ${DETECT_GNU_LD}; then $(DO_GNU_SO); else \
 183         $(CALC_VERSIONS); \
 184         SHLIB=lib$(LIBNAME).so; \
 185         SHLIB_SUFFIX=; \
 186         LIBDEPS=" "; \
 187         ALLSYMSFLAGS="-Wl,-Bforcearchive"; \
 188         NOALLSYMSFLAGS=; \
 189         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -nostdlib"; \
 190         fi; $(LINK_SO_A)
 191 link_app.bsd:
 192         @if ${DETECT_GNU_LD}; then $(DO_GNU_APP); else \
 193         LDFLAGS="$(CFLAGS) -Wl,-rpath,$(LIBPATH)"; \
 194         fi; $(LINK_APP)
 195
 196 # For Darwin AKA Mac OS/X (dyld)
 197 link_o.darwin:
 198         @ $(CALC_VERSIONS); \
 199         SHLIB=lib$(LIBNAME); \
 200         SHLIB_SUFFIX=.dylib; \
 201         ALLSYMSFLAGS='-all_load'; \
 202         NOALLSYMSFLAGS=''; \
 203         if [ -n "$(LIBVERSION)" ]; then \
 204                 SHAREDFLAGS="$$SHAREDFLAGS -current_version $(LIBVERSION)"; \
 205         fi; \
 206         if [ -n "$$SHLIB_SOVER_NODOT" ]; then \
 207                 SHAREDFLAGS="$$SHAREDFLAGS -compatibility_version $$SHLIB_SOVER_NODOT"; \
 208         fi; \
 209         $(LINK_SO_O)
 210 link_a.darwin:
 211         @ $(CALC_VERSIONS); \
 212         SHLIB=lib$(LIBNAME); \
 213         SHLIB_SUFFIX=.dylib; \
 214         ALLSYMSFLAGS='-all_load'; \
 215         NOALLSYMSFLAGS=''; \
 216         if [ -n "$(LIBVERSION)" ]; then \
 217                 SHAREDFLAGS="$$SHAREDFLAGS -current_version $(LIBVERSION)"; \
 218         fi; \
 219         if [ -n "$$SHLIB_SOVER_NODOT" ]; then \
 220                 SHAREDFLAGS="$$SHAREDFLAGS -compatibility_version $$SHLIB_SOVER_NODOT"; \
 221         fi; \
 222         $(LINK_SO_A)
 223 link_app.darwin:        # is there run-path on darwin?
 224         $(LINK_APP)
 225
 226 link_o.cygwin:
 227         @ $(CALC_VERSIONS); \
 228         INHIBIT_SYMLINKS=yes; \
 229         SHLIB=cyg$(LIBNAME); \
 230         expr $(PLATFORM) : 'mingw' > /dev/null && SHLIB=$(LIBNAME)eay32; \
 231         SHLIB_SUFFIX=.dll; \
 232         SHLIB_SOVER=-$(LIBVERSION); \
 233         ALLSYMSFLAGS='-Wl,--whole-archive'; \
 234         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 235         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-Bsymbolic -Wl,--out-implib,lib$(LIBNAME).dll.a"; \
 236         $(LINK_SO_O)
 237 link_a.cygwin:
 238         @ $(CALC_VERSIONS); \
 239         INHIBIT_SYMLINKS=yes; \
 240         SHLIB=cyg$(LIBNAME); \
 241         expr $(PLATFORM) : 'mingw' > /dev/null && SHLIB=$(LIBNAME)eay32; \
 242         SHLIB_SUFFIX=.dll; \
 243         SHLIB_SOVER=; \
 244         ALLSYMSFLAGS='-Wl,--whole-archive'; \
 245         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 246         base=;  [ $(LIBNAME) = "crypto" ] && base=-Wl,--image-base,0x61200000; \
 247         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared $$base -Wl,-Bsymbolic -Wl,--out-implib,lib$(LIBNAME).dll.a"; \
 248         [ -f apps/$$SHLIB$$SHLIB_SUFFIX ] && rm apps/$$SHLIB$$SHLIB_SUFFIX; \
 249         [ -f test/$$SHLIB$$SHLIB_SUFFIX ] && rm test/$$SHLIB$$SHLIB_SUFFIX; \
 250         $(LINK_SO_A) || exit 1; \
 251         cp -p $$SHLIB$$SHLIB_SUFFIX apps/; \
 252         cp -p $$SHLIB$$SHLIB_SUFFIX test/
 253 link_app.cygwin:
 254         $(LINK_APP)
 255
 256 link_o.alpha-osf1:
 257         @ if ${DETECT_GNU_LD}; then \
 258                 $(DO_GNU_SO); \
 259         else \
 260                 SHLIB=lib$(LIBNAME).so; \
 261                 SHLIB_SUFFIX=; \
 262                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 263                 if [ -n "$$SHLIB_HIST" ]; then \
 264                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 265                 else \
 266                         SHLIB_HIST="$(LIBVERSION)"; \
 267                 fi; \
 268                 SHLIB_SOVER=; \
 269                 ALLSYMSFLAGS='-all'; \
 270                 NOALLSYMSFLAGS='-none'; \
 271                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared"; \
 272                 if [ -n "$$SHLIB_HIST" ]; then \
 273                         SHAREDFLAGS="$$SHAREDFLAGS -set_version \"$$SHLIB_HIST\""; \
 274                 fi; \
 275         fi; \
 276         $(LINK_SO_O)
 277 link_a.alpha-osf1:
 278         @ if ${DETECT_GNU_LD}; then \
 279                 $(DO_GNU_SO); \
 280         else \
 281                 SHLIB=lib$(LIBNAME).so; \
 282                 SHLIB_SUFFIX=; \
 283                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 284                 if [ -n "$$SHLIB_HIST" ]; then \
 285                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 286                 else \
 287                         SHLIB_HIST="$(LIBVERSION)"; \
 288                 fi; \
 289                 SHLIB_SOVER=; \
 290                 ALLSYMSFLAGS='-all'; \
 291                 NOALLSYMSFLAGS='-none'; \
 292                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared"; \
 293                 if [ -n "$$SHLIB_HIST" ]; then \
 294                         SHAREDFLAGS="$$SHAREDFLAGS -set_version \"$$SHLIB_HIST\""; \
 295                 fi; \
 296         fi; \
 297         $(LINK_SO_A)
 298 link_app.alpha-osf1:
 299         @if ${DETECT_GNU_LD}; then \
 300                 $(DO_GNU_APP); \
 301         else \
 302                 LDFLAGS="$(CFLAGS) -rpath $(LIBRPATH)"; \
 303         fi; \
 304         $(LINK_APP)
 305
 306 link_o.solaris:
 307         @ if ${DETECT_GNU_LD}; then \
 308                 $(DO_GNU_SO); \
 309         else \
 310                 $(CALC_VERSIONS); \
 311                 MINUSZ='-z '; \
 312                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSZ='-Wl,-z,'; \
 313                 SHLIB=lib$(LIBNAME).so; \
 314                 SHLIB_SUFFIX=; \
 315                 ALLSYMSFLAGS="$${MINUSZ}allextract"; \
 316                 NOALLSYMSFLAGS="$${MINUSZ}defaultextract"; \
 317                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-Bsymbolic"; \
 318         fi; \
 319         $(LINK_SO_O)
 320 link_a.solaris:
 321         @ if ${DETECT_GNU_LD}; then \
 322                 $(DO_GNU_SO); \
 323         else \
 324                 $(CALC_VERSIONS); \
 325                 MINUSZ='-z '; \
 326                 (${CC} -v 2>&1 | grep gcc) > /dev/null && MINUSZ='-Wl,-z,'; \
 327                 SHLIB=lib$(LIBNAME).so; \
 328                 SHLIB_SUFFIX=;\
 329                 ALLSYMSFLAGS="$${MINUSZ}allextract"; \
 330                 NOALLSYMSFLAGS="$${MINUSZ}defaultextract"; \
 331                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-Bsymbolic"; \
 332         fi; \
 333         $(LINK_SO_A)
 334 link_app.solaris:
 335         @ if ${DETECT_GNU_LD}; then \
 336                 $(DO_GNU_APP); \
 337         else \
 338                 LDFLAGS="$(CFLAGS) -R $(LIBRPATH)"; \
 339         fi; \
 340         $(LINK_APP)
 341
 342 # OpenServer 5 native compilers used
 343 link_o.svr3:
 344         @ if ${DETECT_GNU_LD}; then \
 345                 $(DO_GNU_SO); \
 346         else \
 347                 $(CALC_VERSIONS); \
 348                 SHLIB=lib$(LIBNAME).so; \
 349                 SHLIB_SUFFIX=; \
 350                 ALLSYMSFLAGS=''; \
 351                 NOALLSYMSFLAGS=''; \
 352                 SHAREDFLAGS="$(CFLAGS) -G -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 353         fi; \
 354         $(LINK_SO_O)
 355 link_a.svr3:
 356         @ if ${DETECT_GNU_LD}; then \
 357                 $(DO_GNU_SO); \
 358         else \
 359                 $(CALC_VERSIONS); \
 360                 SHLIB=lib$(LIBNAME).so; \
 361                 SHLIB_SUFFIX=; \
 362                 ALLSYMSFLAGS=''; \
 363                 NOALLSYMSFLAGS=''; \
 364                 SHAREDFLAGS="$(CFLAGS) -G -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 365         fi; \
 366         $(LINK_SO_A_UNPACKED)
 367 link_app.svr3:
 368         @${DETECT_GNU_LD} && $(DO_GNU_APP); \
 369         $(LINK_APP)
 370
 371 # UnixWare 7 and OpenUNIX 8 native compilers used
 372 link_o.svr5:
 373         @ if ${DETECT_GNU_LD}; then \
 374                 $(DO_GNU_SO); \
 375         else \
 376                 $(CALC_VERSIONS); \
 377                 SHARE_FLAG='-G'; \
 378                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
 379                 SHLIB=lib$(LIBNAME).so; \
 380                 SHLIB_SUFFIX=; \
 381                 ALLSYMSFLAGS=''; \
 382                 NOALLSYMSFLAGS=''; \
 383                 SHAREDFLAGS="$(CFLAGS) $${SHARE_FLAG} -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 384         fi; \
 385         $(LINK_SO_O)
 386 link_a.svr5:
 387         @ if ${DETECT_GNU_LD}; then \
 388                 $(DO_GNU_SO); \
 389         else \
 390                 $(CALC_VERSIONS); \
 391                 SHARE_FLAG='-G'; \
 392                 (${CC} -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
 393                 SHLIB=lib$(LIBNAME).so; \
 394                 SHLIB_SUFFIX=; \
 395                 ALLSYMSFLAGS=''; \
 396                 NOALLSYMSFLAGS=''; \
 397                 SHAREDFLAGS="$(CFLAGS) $${SHARE_FLAG} -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 398         fi; \
 399         $(LINK_SO_A_UNPACKED)
 400 link_app.svr5:
 401         @${DETECT_GNU_LD} && $(DO_GNU_APP); \
 402         $(LINK_APP)
 403
 404 link_o.irix:
 405         @ if ${DETECT_GNU_LD}; then \
 406                 $(DO_GNU_SO); \
 407         else \
 408                 $(CALC_VERSIONS); \
 409                 SHLIB=lib$(LIBNAME).so; \
 410                 SHLIB_SUFFIX=; \
 411                 MINUSWL=""; \
 412                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSWL="-Wl,"; \
 413                 ALLSYMSFLAGS="$${MINUSWL}-all"; \
 414                 NOALLSYMSFLAGS="$${MINUSWL}-none"; \
 415                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-soname,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 416         fi; \
 417         $(LINK_SO_O)
 418 link_a.irix:
 419         @ if ${DETECT_GNU_LD}; then \
 420                 $(DO_GNU_SO); \
 421         else \
 422                 $(CALC_VERSIONS); \
 423                 SHLIB=lib$(LIBNAME).so; \
 424                 SHLIB_SUFFIX=; \
 425                 MINUSWL=""; \
 426                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSWL="-Wl,"; \
 427                 ALLSYMSFLAGS="$${MINUSWL}-all"; \
 428                 NOALLSYMSFLAGS="$${MINUSWL}-none"; \
 429                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-soname,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 430         fi; \
 431         $(LINK_SO_A)
 432 link_app.irix:
 433         @LDFLAGS="$(CFLAGS) -Wl,-rpath,$(LIBRPATH)"; \
 434         $(LINK_APP)
 435
 436 # 32-bit PA-RISC HP-UX embeds the -L pathname of libs we link with, so
 437 # we compensate for it with +cdp ../: and +cdp ./:. Yes, these rewrite
 438 # rules imply that we can only link one level down in catalog structure,
 439 # but that's what takes place for the moment of this writing. +cdp option
 440 # was introduced in HP-UX 11.x and applies in 32-bit PA-RISC link
 441 # editor context only [it's simply ignored in other cases, which are all
 442 # ELFs by the way].
 443 #
 444 link_o.hpux:
 445         @if ${DETECT_GNU_LD}; then $(DO_GNU_SO); else \
 446         $(CALC_VERSIONS); \
 447         SHLIB=lib$(LIBNAME).sl; \
 448         expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
 449         SHLIB_SUFFIX=; \
 450         ALLSYMSFLAGS='-Wl,-Fl'; \
 451         NOALLSYMSFLAGS=''; \
 452         expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
 453         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+h,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 454         fi; \
 455         $(LINK_SO_O) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
 456 link_a.hpux:
 457         @if ${DETECT_GNU_LD}; then $(DO_GNU_SO); else \
 458         $(CALC_VERSIONS); \
 459         SHLIB=lib$(LIBNAME).sl; \
 460         expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
 461         SHLIB_SUFFIX=; \
 462         ALLSYMSFLAGS='-Wl,-Fl'; \
 463         NOALLSYMSFLAGS=''; \
 464         expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
 465         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+h,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 466         fi; \
 467         $(LINK_SO_A) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
 468 link_app.hpux:
 469         @if ${DETECT_GNU_LD}; then $(DO_GNU_APP); else \
 470         LDFLAGS="$(CFLAGS) -Wl,+s,+cdp,../:,+cdp,./:,+b,$(LIBRPATH)"; \
 471         fi; \
 472         $(LINK_APP)
 473
 474 link_o.aix:
 475         @ $(CALC_VERSIONS); \
 476         OBJECT_MODE=`expr x$(SHARED_LDFLAGS) : 'x\-[a-z]\([0-9]*\)'`; \
 477         OBJECT_MODE=$${OBJECT_MODE:-32}; export OBJECT_MODE; \
 478         SHLIB=lib$(LIBNAME).so; \
 479         SHLIB_SUFFIX=; \
 480         ALLSYMSFLAGS='-bnogc'; \
 481         NOALLSYMSFLAGS=''; \
 482         SHAREDFLAGS='$(CFLAGS) $(SHARED_LDFLAGS) -G -bE:lib$(LIBNAME).exp -bM:SRE'; \
 483         $(LINK_SO_O); rm -rf lib$(LIBNAME).exp
 484 link_a.aix:
 485         @ $(CALC_VERSIONS); \
 486         OBJECT_MODE=`expr x$(SHARED_LDFLAGS) : 'x\-[a-z]\([0-9]*\)'`; \
 487         OBJECT_MODE=$${OBJECT_MODE:-32}; export OBJECT_MODE; \
 488         SHLIB=lib$(LIBNAME).so; \
 489         SHLIB_SUFFIX=; \
 490         ALLSYMSFLAGS='-bnogc'; \
 491         NOALLSYMSFLAGS=''; \
 492         SHAREDFLAGS='$(CFLAGS) $(SHARED_LDFLAGS) -G -bE:lib$(LIBNAME).exp -bM:SRE'; \
 493         $(LINK_SO_A_VIA_O)
 494 link_app.aix:
 495         LDFLAGS="$(CFLAGS) -blibpath:$(LIBRPATH)"; \
 496         $(LINK_APP)
 497
 498 link_o.reliantunix:
 499         @ $(CALC_VERSIONS); \
 500         SHLIB=lib$(LIBNAME).so; \
 501         SHLIB_SUFFIX=; \
 502         ALLSYMSFLAGS=; \
 503         NOALLSYMSFLAGS=''; \
 504         SHAREDFLAGS='$(CFLAGS) -G'; \
 505         $(LINK_SO_O)
 506 link_a.reliantunix:
 507         @ $(CALC_VERSIONS); \
 508         SHLIB=lib$(LIBNAME).so; \
 509         SHLIB_SUFFIX=; \
 510         ALLSYMSFLAGS=; \
 511         NOALLSYMSFLAGS=''; \
 512         SHAREDFLAGS='$(CFLAGS) -G'; \
 513         $(LINK_SO_A_UNPACKED)
 514 link_app.reliantunix:
 515         $(LINK_APP)
 516
 517 # Targets to build symbolic links when needed
 518 symlink.gnu symlink.solaris symlink.svr3 symlink.svr5 symlink.irix \
 519 symlink.aix symlink.reliantunix:
 520         @ $(CALC_VERSIONS); \
 521         SHLIB=lib$(LIBNAME).so; \
 522         $(SYMLINK_SO)
 523 symlink.darwin:
 524         @ $(CALC_VERSIONS); \
 525         SHLIB=lib$(LIBNAME); \
 526         SHLIB_SUFFIX=.dylib; \
 527         $(SYMLINK_SO)
 528 symlink.hpux:
 529         @ $(CALC_VERSIONS); \
 530         SHLIB=lib$(LIBNAME).sl; \
 531         expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
 532         $(SYMLINK_SO)
 533 # The following lines means those specific architectures do no symlinks
 534 symlink.cygwin symlib.alpha-osf1 symlink.tru64 symlink.tru64-rpath:
 535
 536 # Compatibility targets
 537 link_o.bsd-gcc-shared link_o.linux-shared link_o.gnu-shared: link_o.gnu
 538 link_a.bsd-gcc-shared link_a.linux-shared link_a.gnu-shared: link_a.gnu
 539 link_app.bsd-gcc-shared link_app.linux-shared link_app.gnu-shared: link_app.gnu
 540 symlink.bsd-gcc-shared symlink.bsd-shared symlink.linux-shared symlink.gnu-shared: symlink.gnu
 541 link_o.bsd-shared: link_o.bsd
 542 link_a.bsd-shared: link_a.bsd
 543 link_app.bsd-shared: link_app.bsd
 544 link_o.darwin-shared: link_o.darwin
 545 link_a.darwin-shared: link_a.darwin
 546 link_app.darwin-shared: link_app.darwin
 547 symlink.darwin-shared: symlink.darwin
 548 link_o.cygwin-shared: link_o.cygwin
 549 link_a.cygwin-shared: link_a.cygwin
 550 link_app.cygwin-shared: link_app.cygwin
 551 symlink.cygwin-shared: symlink.cygwin
 552 link_o.alpha-osf1-shared: link_o.alpha-osf1
 553 link_a.alpha-osf1-shared: link_a.alpha-osf1
 554 link_app.alpha-osf1-shared: link_app.alpha-osf1
 555 symlink.alpha-osf1-shared: symlink.alpha-osf1
 556 link_o.tru64-shared: link_o.tru64
 557 link_a.tru64-shared: link_a.tru64
 558 link_app.tru64-shared: link_app.tru64
 559 symlink.tru64-shared: symlink.tru64
 560 link_o.tru64-shared-rpath: link_o.tru64-rpath
 561 link_a.tru64-shared-rpath: link_a.tru64-rpath
 562 link_app.tru64-shared-rpath: link_app.tru64-rpath
 563 symlink.tru64-shared-rpath: symlink.tru64-rpath
 564 link_o.solaris-shared: link_o.solaris
 565 link_a.solaris-shared: link_a.solaris
 566 link_app.solaris-shared: link_app.solaris
 567 symlink.solaris-shared: symlink.solaris
 568 link_o.svr3-shared: link_o.svr3
 569 link_a.svr3-shared: link_a.svr3
 570 link_app.svr3-shared: link_app.svr3
 571 symlink.svr3-shared: symlink.svr3
 572 link_o.svr5-shared: link_o.svr5
 573 link_a.svr5-shared: link_a.svr5
 574 link_app.svr5-shared: link_app.svr5
 575 symlink.svr5-shared: symlink.svr5
 576 link_o.irix-shared: link_o.irix
 577 link_a.irix-shared: link_a.irix
 578 link_app.irix-shared: link_app.irix
 579 symlink.irix-shared: symlink.irix
 580 link_o.hpux-shared: link_o.hpux
 581 link_a.hpux-shared: link_a.hpux
 582 link_app.hpux-shared: link_app.hpux
 583 symlink.hpux-shared: symlink.hpux
 584 link_o.aix-shared: link_o.aix
 585 link_a.aix-shared: link_a.aix
 586 link_app.aix-shared: link_app.aix
 587 symlink.aix-shared: symlink.aix
 588 link_o.reliantunix-shared: link_o.reliantunix
 589 link_a.reliantunix-shared: link_a.reliantunix
 590 link_app.reliantunix-shared: link_app.reliantunix
 591 symlink.reliantunix-shared: symlink.reliantunix