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         LIBVERSION="$(LIBVERSION)"; \
 233         SHLIB_SOVER=${LIBVERSION:+"-$(LIBVERSION)"}; \
 234         ALLSYMSFLAGS='-Wl,--whole-archive'; \
 235         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 236         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-Bsymbolic -Wl,--out-implib,lib$(LIBNAME).dll.a"; \
 237         $(LINK_SO_O)
 238 link_a.cygwin:
 239         @ $(CALC_VERSIONS); \
 240         INHIBIT_SYMLINKS=yes; \
 241         SHLIB=cyg$(LIBNAME); \
 242         expr $(PLATFORM) : 'mingw' > /dev/null && SHLIB=$(LIBNAME)eay32; \
 243         SHLIB_SUFFIX=.dll; \
 244         SHLIB_SOVER=-$(LIBVERSION); \
 245         ALLSYMSFLAGS='-Wl,--whole-archive'; \
 246         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 247         base=;  [ $(LIBNAME) = "crypto" ] && base=-Wl,--image-base,0x63000000; \
 248         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared $$base -Wl,-Bsymbolic -Wl,--out-implib,lib$(LIBNAME).dll.a"; \
 249         [ -f apps/$$SHLIB$$SHLIB_SUFFIX ] && rm apps/$$SHLIB$$SHLIB_SUFFIX; \
 250         [ -f test/$$SHLIB$$SHLIB_SUFFIX ] && rm test/$$SHLIB$$SHLIB_SUFFIX; \
 251         $(LINK_SO_A) || exit 1; \
 252         cp -p $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX apps/; \
 253         cp -p $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX test/
 254 link_app.cygwin:
 255         $(LINK_APP)
 256
 257 link_o.alpha-osf1:
 258         @ if ${DETECT_GNU_LD}; then \
 259                 $(DO_GNU_SO); \
 260         else \
 261                 SHLIB=lib$(LIBNAME).so; \
 262                 SHLIB_SUFFIX=; \
 263                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 264                 if [ -n "$$SHLIB_HIST" ]; then \
 265                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 266                 else \
 267                         SHLIB_HIST="$(LIBVERSION)"; \
 268                 fi; \
 269                 SHLIB_SOVER=; \
 270                 ALLSYMSFLAGS='-all'; \
 271                 NOALLSYMSFLAGS='-none'; \
 272                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared"; \
 273                 if [ -n "$$SHLIB_HIST" ]; then \
 274                         SHAREDFLAGS="$$SHAREDFLAGS -set_version \"$$SHLIB_HIST\""; \
 275                 fi; \
 276         fi; \
 277         $(LINK_SO_O)
 278 link_a.alpha-osf1:
 279         @ if ${DETECT_GNU_LD}; then \
 280                 $(DO_GNU_SO); \
 281         else \
 282                 SHLIB=lib$(LIBNAME).so; \
 283                 SHLIB_SUFFIX=; \
 284                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 285                 if [ -n "$$SHLIB_HIST" ]; then \
 286                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 287                 else \
 288                         SHLIB_HIST="$(LIBVERSION)"; \
 289                 fi; \
 290                 SHLIB_SOVER=; \
 291                 ALLSYMSFLAGS='-all'; \
 292                 NOALLSYMSFLAGS='-none'; \
 293                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared"; \
 294                 if [ -n "$$SHLIB_HIST" ]; then \
 295                         SHAREDFLAGS="$$SHAREDFLAGS -set_version \"$$SHLIB_HIST\""; \
 296                 fi; \
 297         fi; \
 298         $(LINK_SO_A)
 299 link_app.alpha-osf1:
 300         @if ${DETECT_GNU_LD}; then \
 301                 $(DO_GNU_APP); \
 302         else \
 303                 LDFLAGS="$(CFLAGS) -rpath $(LIBRPATH)"; \
 304         fi; \
 305         $(LINK_APP)
 306
 307 link_o.solaris:
 308         @ if ${DETECT_GNU_LD}; then \
 309                 $(DO_GNU_SO); \
 310         else \
 311                 $(CALC_VERSIONS); \
 312                 MINUSZ='-z '; \
 313                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSZ='-Wl,-z,'; \
 314                 SHLIB=lib$(LIBNAME).so; \
 315                 SHLIB_SUFFIX=; \
 316                 ALLSYMSFLAGS="$${MINUSZ}allextract"; \
 317                 NOALLSYMSFLAGS="$${MINUSZ}defaultextract"; \
 318                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-Bsymbolic"; \
 319         fi; \
 320         $(LINK_SO_O)
 321 link_a.solaris:
 322         @ if ${DETECT_GNU_LD}; then \
 323                 $(DO_GNU_SO); \
 324         else \
 325                 $(CALC_VERSIONS); \
 326                 MINUSZ='-z '; \
 327                 (${CC} -v 2>&1 | grep gcc) > /dev/null && MINUSZ='-Wl,-z,'; \
 328                 SHLIB=lib$(LIBNAME).so; \
 329                 SHLIB_SUFFIX=;\
 330                 ALLSYMSFLAGS="$${MINUSZ}allextract"; \
 331                 NOALLSYMSFLAGS="$${MINUSZ}defaultextract"; \
 332                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-Bsymbolic"; \
 333         fi; \
 334         $(LINK_SO_A)
 335 link_app.solaris:
 336         @ if ${DETECT_GNU_LD}; then \
 337                 $(DO_GNU_APP); \
 338         else \
 339                 LDFLAGS="$(CFLAGS) -R $(LIBRPATH)"; \
 340         fi; \
 341         $(LINK_APP)
 342
 343 # OpenServer 5 native compilers used
 344 link_o.svr3:
 345         @ if ${DETECT_GNU_LD}; then \
 346                 $(DO_GNU_SO); \
 347         else \
 348                 $(CALC_VERSIONS); \
 349                 SHLIB=lib$(LIBNAME).so; \
 350                 SHLIB_SUFFIX=; \
 351                 ALLSYMSFLAGS=''; \
 352                 NOALLSYMSFLAGS=''; \
 353                 SHAREDFLAGS="$(CFLAGS) -G -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 354         fi; \
 355         $(LINK_SO_O)
 356 link_a.svr3:
 357         @ if ${DETECT_GNU_LD}; then \
 358                 $(DO_GNU_SO); \
 359         else \
 360                 $(CALC_VERSIONS); \
 361                 SHLIB=lib$(LIBNAME).so; \
 362                 SHLIB_SUFFIX=; \
 363                 ALLSYMSFLAGS=''; \
 364                 NOALLSYMSFLAGS=''; \
 365                 SHAREDFLAGS="$(CFLAGS) -G -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 366         fi; \
 367         $(LINK_SO_A_UNPACKED)
 368 link_app.svr3:
 369         @${DETECT_GNU_LD} && $(DO_GNU_APP); \
 370         $(LINK_APP)
 371
 372 # UnixWare 7 and OpenUNIX 8 native compilers used
 373 link_o.svr5:
 374         @ if ${DETECT_GNU_LD}; then \
 375                 $(DO_GNU_SO); \
 376         else \
 377                 $(CALC_VERSIONS); \
 378                 SHARE_FLAG='-G'; \
 379                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
 380                 SHLIB=lib$(LIBNAME).so; \
 381                 SHLIB_SUFFIX=; \
 382                 ALLSYMSFLAGS=''; \
 383                 NOALLSYMSFLAGS=''; \
 384                 SHAREDFLAGS="$(CFLAGS) $${SHARE_FLAG} -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 385         fi; \
 386         $(LINK_SO_O)
 387 link_a.svr5:
 388         @ if ${DETECT_GNU_LD}; then \
 389                 $(DO_GNU_SO); \
 390         else \
 391                 $(CALC_VERSIONS); \
 392                 SHARE_FLAG='-G'; \
 393                 (${CC} -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
 394                 SHLIB=lib$(LIBNAME).so; \
 395                 SHLIB_SUFFIX=; \
 396                 ALLSYMSFLAGS=''; \
 397                 NOALLSYMSFLAGS=''; \
 398                 SHAREDFLAGS="$(CFLAGS) $${SHARE_FLAG} -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 399         fi; \
 400         $(LINK_SO_A_UNPACKED)
 401 link_app.svr5:
 402         @${DETECT_GNU_LD} && $(DO_GNU_APP); \
 403         $(LINK_APP)
 404
 405 link_o.irix:
 406         @ if ${DETECT_GNU_LD}; then \
 407                 $(DO_GNU_SO); \
 408         else \
 409                 $(CALC_VERSIONS); \
 410                 SHLIB=lib$(LIBNAME).so; \
 411                 SHLIB_SUFFIX=; \
 412                 MINUSWL=""; \
 413                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSWL="-Wl,"; \
 414                 ALLSYMSFLAGS="$${MINUSWL}-all"; \
 415                 NOALLSYMSFLAGS="$${MINUSWL}-none"; \
 416                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-soname,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 417         fi; \
 418         $(LINK_SO_O)
 419 link_a.irix:
 420         @ if ${DETECT_GNU_LD}; then \
 421                 $(DO_GNU_SO); \
 422         else \
 423                 $(CALC_VERSIONS); \
 424                 SHLIB=lib$(LIBNAME).so; \
 425                 SHLIB_SUFFIX=; \
 426                 MINUSWL=""; \
 427                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSWL="-Wl,"; \
 428                 ALLSYMSFLAGS="$${MINUSWL}-all"; \
 429                 NOALLSYMSFLAGS="$${MINUSWL}-none"; \
 430                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-soname,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 431         fi; \
 432         $(LINK_SO_A)
 433 link_app.irix:
 434         @LDFLAGS="$(CFLAGS) -Wl,-rpath,$(LIBRPATH)"; \
 435         $(LINK_APP)
 436
 437 # 32-bit PA-RISC HP-UX embeds the -L pathname of libs we link with, so
 438 # we compensate for it with +cdp ../: and +cdp ./:. Yes, these rewrite
 439 # rules imply that we can only link one level down in catalog structure,
 440 # but that's what takes place for the moment of this writing. +cdp option
 441 # was introduced in HP-UX 11.x and applies in 32-bit PA-RISC link
 442 # editor context only [it's simply ignored in other cases, which are all
 443 # ELFs by the way].
 444 #
 445 link_o.hpux:
 446         @if ${DETECT_GNU_LD}; then $(DO_GNU_SO); else \
 447         $(CALC_VERSIONS); \
 448         SHLIB=lib$(LIBNAME).sl; \
 449         expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
 450         SHLIB_SUFFIX=; \
 451         ALLSYMSFLAGS='-Wl,-Fl'; \
 452         NOALLSYMSFLAGS=''; \
 453         expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
 454         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+h,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 455         fi; \
 456         $(LINK_SO_O) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
 457 link_a.hpux:
 458         @if ${DETECT_GNU_LD}; then $(DO_GNU_SO); else \
 459         $(CALC_VERSIONS); \
 460         SHLIB=lib$(LIBNAME).sl; \
 461         expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
 462         SHLIB_SUFFIX=; \
 463         ALLSYMSFLAGS='-Wl,-Fl'; \
 464         NOALLSYMSFLAGS=''; \
 465         expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
 466         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+h,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 467         fi; \
 468         $(LINK_SO_A) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
 469 link_app.hpux:
 470         @if ${DETECT_GNU_LD}; then $(DO_GNU_APP); else \
 471         LDFLAGS="$(CFLAGS) -Wl,+s,+cdp,../:,+cdp,./:,+b,$(LIBRPATH)"; \
 472         fi; \
 473         $(LINK_APP)
 474
 475 link_o.aix:
 476         @ $(CALC_VERSIONS); \
 477         OBJECT_MODE=`expr x$(SHARED_LDFLAGS) : 'x\-[a-z]\([0-9]*\)'`; \
 478         OBJECT_MODE=$${OBJECT_MODE:-32}; export OBJECT_MODE; \
 479         SHLIB=lib$(LIBNAME).so; \
 480         SHLIB_SUFFIX=; \
 481         ALLSYMSFLAGS='-bnogc'; \
 482         NOALLSYMSFLAGS=''; \
 483         SHAREDFLAGS='$(CFLAGS) $(SHARED_LDFLAGS) -G -bE:lib$(LIBNAME).exp -bM:SRE'; \
 484         $(LINK_SO_O); rm -rf lib$(LIBNAME).exp
 485 link_a.aix:
 486         @ $(CALC_VERSIONS); \
 487         OBJECT_MODE=`expr x$(SHARED_LDFLAGS) : 'x\-[a-z]\([0-9]*\)'`; \
 488         OBJECT_MODE=$${OBJECT_MODE:-32}; export OBJECT_MODE; \
 489         SHLIB=lib$(LIBNAME).so; \
 490         SHLIB_SUFFIX=; \
 491         ALLSYMSFLAGS='-bnogc'; \
 492         NOALLSYMSFLAGS=''; \
 493         SHAREDFLAGS='$(CFLAGS) $(SHARED_LDFLAGS) -G -bE:lib$(LIBNAME).exp -bM:SRE'; \
 494         $(LINK_SO_A_VIA_O)
 495 link_app.aix:
 496         LDFLAGS="$(CFLAGS) -blibpath:$(LIBRPATH)"; \
 497         $(LINK_APP)
 498
 499 link_o.reliantunix:
 500         @ $(CALC_VERSIONS); \
 501         SHLIB=lib$(LIBNAME).so; \
 502         SHLIB_SUFFIX=; \
 503         ALLSYMSFLAGS=; \
 504         NOALLSYMSFLAGS=''; \
 505         SHAREDFLAGS='$(CFLAGS) -G'; \
 506         $(LINK_SO_O)
 507 link_a.reliantunix:
 508         @ $(CALC_VERSIONS); \
 509         SHLIB=lib$(LIBNAME).so; \
 510         SHLIB_SUFFIX=; \
 511         ALLSYMSFLAGS=; \
 512         NOALLSYMSFLAGS=''; \
 513         SHAREDFLAGS='$(CFLAGS) -G'; \
 514         $(LINK_SO_A_UNPACKED)
 515 link_app.reliantunix:
 516         $(LINK_APP)
 517
 518 # Targets to build symbolic links when needed
 519 symlink.gnu symlink.solaris symlink.svr3 symlink.svr5 symlink.irix \
 520 symlink.aix symlink.reliantunix:
 521         @ $(CALC_VERSIONS); \
 522         SHLIB=lib$(LIBNAME).so; \
 523         $(SYMLINK_SO)
 524 symlink.darwin:
 525         @ $(CALC_VERSIONS); \
 526         SHLIB=lib$(LIBNAME); \
 527         SHLIB_SUFFIX=.dylib; \
 528         $(SYMLINK_SO)
 529 symlink.hpux:
 530         @ $(CALC_VERSIONS); \
 531         SHLIB=lib$(LIBNAME).sl; \
 532         expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
 533         $(SYMLINK_SO)
 534 # The following lines means those specific architectures do no symlinks
 535 symlink.cygwin symlib.alpha-osf1 symlink.tru64 symlink.tru64-rpath:
 536
 537 # Compatibility targets
 538 link_o.bsd-gcc-shared link_o.linux-shared link_o.gnu-shared: link_o.gnu
 539 link_a.bsd-gcc-shared link_a.linux-shared link_a.gnu-shared: link_a.gnu
 540 link_app.bsd-gcc-shared link_app.linux-shared link_app.gnu-shared: link_app.gnu
 541 symlink.bsd-gcc-shared symlink.bsd-shared symlink.linux-shared symlink.gnu-shared: symlink.gnu
 542 link_o.bsd-shared: link_o.bsd
 543 link_a.bsd-shared: link_a.bsd
 544 link_app.bsd-shared: link_app.bsd
 545 link_o.darwin-shared: link_o.darwin
 546 link_a.darwin-shared: link_a.darwin
 547 link_app.darwin-shared: link_app.darwin
 548 symlink.darwin-shared: symlink.darwin
 549 link_o.cygwin-shared: link_o.cygwin
 550 link_a.cygwin-shared: link_a.cygwin
 551 link_app.cygwin-shared: link_app.cygwin
 552 symlink.cygwin-shared: symlink.cygwin
 553 link_o.alpha-osf1-shared: link_o.alpha-osf1
 554 link_a.alpha-osf1-shared: link_a.alpha-osf1
 555 link_app.alpha-osf1-shared: link_app.alpha-osf1
 556 symlink.alpha-osf1-shared: symlink.alpha-osf1
 557 link_o.tru64-shared: link_o.tru64
 558 link_a.tru64-shared: link_a.tru64
 559 link_app.tru64-shared: link_app.tru64
 560 symlink.tru64-shared: symlink.tru64
 561 link_o.tru64-shared-rpath: link_o.tru64-rpath
 562 link_a.tru64-shared-rpath: link_a.tru64-rpath
 563 link_app.tru64-shared-rpath: link_app.tru64-rpath
 564 symlink.tru64-shared-rpath: symlink.tru64-rpath
 565 link_o.solaris-shared: link_o.solaris
 566 link_a.solaris-shared: link_a.solaris
 567 link_app.solaris-shared: link_app.solaris
 568 symlink.solaris-shared: symlink.solaris
 569 link_o.svr3-shared: link_o.svr3
 570 link_a.svr3-shared: link_a.svr3
 571 link_app.svr3-shared: link_app.svr3
 572 symlink.svr3-shared: symlink.svr3
 573 link_o.svr5-shared: link_o.svr5
 574 link_a.svr5-shared: link_a.svr5
 575 link_app.svr5-shared: link_app.svr5
 576 symlink.svr5-shared: symlink.svr5
 577 link_o.irix-shared: link_o.irix
 578 link_a.irix-shared: link_a.irix
 579 link_app.irix-shared: link_app.irix
 580 symlink.irix-shared: symlink.irix
 581 link_o.hpux-shared: link_o.hpux
 582 link_a.hpux-shared: link_a.hpux
 583 link_app.hpux-shared: link_app.hpux
 584 symlink.hpux-shared: symlink.hpux
 585 link_o.aix-shared: link_o.aix
 586 link_a.aix-shared: link_a.aix
 587 link_app.aix-shared: link_app.aix
 588 symlink.aix-shared: symlink.aix
 589 link_o.reliantunix-shared: link_o.reliantunix
 590 link_a.reliantunix-shared: link_a.reliantunix
 591 link_app.reliantunix-shared: link_app.reliantunix
 592 symlink.reliantunix-shared: symlink.reliantunix