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 NM=nm
  18
  19 # LIBNAME contains just the name of the library, without prefix ("lib"
  20 # on Unix, "cyg" for certain forms under Cygwin...) or suffix (.a, .so,
  21 # .dll, ...).  This one MUST have a value when using this makefile to
  22 # build shared libraries.
  23 # For example, to build libfoo.so, you need to do the following:
  24 #LIBNAME=foo
  25 LIBNAME=
  26
  27 # APPNAME contains just the name of the application, without suffix (""
  28 # on Unix, ".exe" on Windows, ...).  This one MUST have a value when using
  29 # this makefile to build applications.
  30 # For example, to build foo, you need to do the following:
  31 #APPNAME=foo
  32 APPNAME=
  33
  34 # OBJECTS contains all the object files to link together into the application.
  35 # This must contain at least one object file.
  36 #OBJECTS=foo.o
  37 OBJECTS=
  38
  39 # LIBEXTRAS contains extra modules to link together with the library.
  40 # For example, if a second library, say libbar.a needs to be linked into
  41 # libfoo.so, you need to do the following:
  42 #LIBEXTRAS=libbar.a
  43 # Note that this MUST be used when using the link_o targets, to hold the
  44 # names of all object files that go into the target library.
  45 LIBEXTRAS=
  46
  47 # LIBVERSION contains the current version of the library.
  48 # For example, to build libfoo.so.1.2, you need to do the following:
  49 #LIBVERSION=1.2
  50 LIBVERSION=
  51
  52 # LIBCOMPATVERSIONS contains the compatibility versions (a list) of
  53 # the library.  They MUST be in decreasing order.
  54 # For example, if libfoo.so.1.2.1 is backward compatible with libfoo.so.1.2
  55 # and libfoo.so.1, you need to do the following:
  56 #LIBCOMPATVERSIONS=1.2 1
  57 # Note that on systems that use sonames, the last number will appear as
  58 # part of it.
  59 # It's also possible, for systems that support it (Tru64, for example),
  60 # to add extra compatibility info with more precision, by adding a second
  61 # list of versions, separated from the first with a semicolon, like this:
  62 #LIBCOMPATVERSIONS=1.2 1;1.2.0 1.1.2 1.1.1 1.1.0 1.0.0
  63 LIBCOMPATVERSIONS=
  64
  65 # LIBDEPS contains all the flags necessary to cover all necessary
  66 # dependencies to other libraries.
  67 LIBDEPS=
  68
  69 #------------------------------------------------------------------------------
  70 # The rest is private to this makefile.
  71
  72 SET_X=:
  73 #SET_X=set -x
  74
  75 top:
  76         echo "Trying to use this makefile interactively?  Don't."
  77
  78 CALC_VERSIONS=  \
  79         SHLIB_COMPAT=; SHLIB_SOVER=; \
  80         if [ -n "$(LIBVERSION)$(LIBCOMPATVERSIONS)" ]; then \
  81                 prev=""; \
  82                 for v in `echo "$(LIBVERSION) $(LIBCOMPATVERSIONS)" | cut -d';' -f1`; do \
  83                         SHLIB_SOVER_NODOT=$$v; \
  84                         SHLIB_SOVER=.$$v; \
  85                         if [ -n "$$prev" ]; then \
  86                                 SHLIB_COMPAT="$$SHLIB_COMPAT .$$prev"; \
  87                         fi; \
  88                         prev=$$v; \
  89                 done; \
  90         fi
  91
  92 LINK_APP=       \
  93   ( $(SET_X);   \
  94     LIBDEPS="$${LIBDEPS:-$(LIBDEPS)}"; \
  95     LDCMD="$${LDCMD:-$(CC)}"; LDFLAGS="$${LDFLAGS:-$(CFLAGS)}"; \
  96     LIBPATH=`for x in $$LIBDEPS; do echo $$x; done | sed -e 's/^ *-L//;t' -e d | uniq`; \
  97     LIBPATH=`echo $$LIBPATH | sed -e 's/ /:/g'`; \
  98     LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
  99     $${LDCMD} $${LDFLAGS} -o $${APPNAME:=$(APPNAME)} $(OBJECTS) $${LIBDEPS} )
 100
 101 LINK_SO=        \
 102   ( $(SET_X);   \
 103     LIBDEPS="$${LIBDEPS:-$(LIBDEPS)}"; \
 104     SHAREDCMD="$${SHAREDCMD:-$(CC)}"; \
 105     SHAREDFLAGS="$${SHAREDFLAGS:-$(CFLAGS) $(SHARED_LDFLAGS)}"; \
 106     LIBPATH=`for x in $$LIBDEPS; do echo $$x; done | sed -e 's/^ *-L//;t' -e d | uniq`; \
 107     LIBPATH=`echo $$LIBPATH | sed -e 's/ /:/g'`; \
 108     LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
 109     $${SHAREDCMD} $${SHAREDFLAGS} \
 110         -o $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX \
 111         $$ALLSYMSFLAGS $$SHOBJECTS $$NOALLSYMSFLAGS $$LIBDEPS \
 112   ) && $(SYMLINK_SO)
 113
 114 SYMLINK_SO=     \
 115         if [ -n "$$INHIBIT_SYMLINKS" ]; then :; else \
 116                 prev=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX; \
 117                 if [ -n "$$SHLIB_COMPAT" ]; then \
 118                         for x in $$SHLIB_COMPAT; do \
 119                                 ( $(SET_X); rm -f $$SHLIB$$x$$SHLIB_SUFFIX; \
 120                                   ln -s $$prev $$SHLIB$$x$$SHLIB_SUFFIX ); \
 121                                 prev=$$SHLIB$$x$$SHLIB_SUFFIX; \
 122                         done; \
 123                 fi; \
 124                 if [ -n "$$SHLIB_SOVER" ]; then \
 125                         ( $(SET_X); rm -f $$SHLIB$$SHLIB_SUFFIX; \
 126                           ln -s $$prev $$SHLIB$$SHLIB_SUFFIX ); \
 127                 fi; \
 128         fi
 129
 130 LINK_SO_A=      SHOBJECTS="lib$(LIBNAME).a $(LIBEXTRAS)"; $(LINK_SO)
 131 LINK_SO_O=      SHOBJECTS="$(LIBEXTRAS)"; $(LINK_SO)
 132
 133 LINK_SO_A_VIA_O=        \
 134   SHOBJECTS=lib$(LIBNAME).o; \
 135   ALL=$$ALLSYMSFLAGS; ALLSYMSFLAGS=; NOALLSYMSFLAGS=; \
 136   ( $(SET_X); \
 137     ld $(LDFLAGS) -r -o lib$(LIBNAME).o $$ALL lib$(LIBNAME).a $(LIBEXTRAS) ); \
 138   $(LINK_SO) && rm -f lib$(LIBNAME).o
 139
 140 LINK_SO_A_UNPACKED=     \
 141   UNPACKDIR=link_tmp.$$$$; rm -rf $$UNPACKDIR; mkdir $$UNPACKDIR; \
 142   (cd $$UNPACKDIR; ar x ../lib$(LIBNAME).a) && \
 143   ([ -z "$(LIBEXTRAS)" ] || cp $(LIBEXTRAS) $$UNPACKDIR) && \
 144   SHOBJECTS=$$UNPACKDIR/*.o; \
 145   $(LINK_SO) && rm -rf $$UNPACKDIR
 146
 147 DETECT_GNU_LD=($(CC) -Wl,-V /dev/null 2>&1 | grep '^GNU ld' )>/dev/null
 148
 149 DO_GNU_SO=$(CALC_VERSIONS); \
 150         SHLIB=lib$(LIBNAME).so; \
 151         SHLIB_SUFFIX=; \
 152         ALLSYMSFLAGS='-Wl,--whole-archive'; \
 153         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 154         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-Bsymbolic -Wl,-soname=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"
 155
 156 DO_GNU_APP=LDFLAGS="$(CFLAGS) -Wl,-rpath,$(LIBRPATH)"
 157
 158 #This is rather special.  It's a special target with which one can link
 159 #applications without bothering with any features that have anything to
 160 #do with shared libraries, for example when linking against static
 161 #libraries.  It's mostly here to avoid a lot of conditionals everywhere
 162 #else...
 163 link_app.:
 164         $(LINK_APP)
 165
 166 link_o.gnu:
 167         @ $(DO_GNU_SO); $(LINK_SO_O)
 168 link_a.gnu:
 169         @ $(DO_GNU_SO); $(LINK_SO_A)
 170 link_app.gnu:
 171         @ $(DO_GNU_APP); $(LINK_APP)
 172
 173 DO_BEOS_SO=     SHLIB=lib$(LIBNAME).so; \
 174         SHLIB_SUFFIX=; \
 175         ALLSYMSFLAGS='-Wl,--whole-archive'; \
 176         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 177         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-Bsymbolic -Wl,-soname=$$SHLIB$$SHLIB_SUFFIX"
 178
 179 link_o.beos:
 180         @ $(DO_BEOS_SO); $(LINK_SO_O)
 181 link_a.beos:
 182         @ $(DO_BEOS_SO); $(LINK_SO_A)
 183
 184 link_o.bsd:
 185         @if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
 186         $(CALC_VERSIONS); \
 187         SHLIB=lib$(LIBNAME).so; \
 188         SHLIB_SUFFIX=; \
 189         LIBDEPS=" "; \
 190         ALLSYMSFLAGS="-Wl,-Bforcearchive"; \
 191         NOALLSYMSFLAGS=; \
 192         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -nostdlib"; \
 193         fi; $(LINK_SO_O)
 194 link_a.bsd:
 195         @if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
 196         $(CALC_VERSIONS); \
 197         SHLIB=lib$(LIBNAME).so; \
 198         SHLIB_SUFFIX=; \
 199         LIBDEPS=" "; \
 200         ALLSYMSFLAGS="-Wl,-Bforcearchive"; \
 201         NOALLSYMSFLAGS=; \
 202         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -nostdlib"; \
 203         fi; $(LINK_SO_A)
 204 link_app.bsd:
 205         @if $(DETECT_GNU_LD); then $(DO_GNU_APP); else \
 206         LDFLAGS="$(CFLAGS) -Wl,-rpath,$(LIBPATH)"; \
 207         fi; $(LINK_APP)
 208
 209 # For Darwin AKA Mac OS/X (dyld)
 210 # Originally link_o.darwin produced .so, because it was hard-coded
 211 # in dso_dlfcn module. At later point dso_dlfcn switched to .dylib
 212 # extension in order to allow for run-time linking with vendor-
 213 # supplied shared libraries such as libz, so that link_o.darwin had
 214 # to be harmonized with it. This caused minor controversy, because
 215 # it was believed that dlopen can't be used to dynamically load
 216 # .dylib-s, only so called bundle modules (ones linked with -bundle
 217 # flag). The belief seems to be originating from pre-10.4 release,
 218 # where dlfcn functionality was emulated by dlcompat add-on. In
 219 # 10.4 dlopen was rewritten as native part of dyld and is documented
 220 # to be capable of loading both dynamic libraries and bundles. In
 221 # order to provide compatibility with pre-10.4 dlopen, modules are
 222 # linked with -bundle flag, which makes .dylib extension misleading.
 223 # It works, because dlopen is [and always was] extension-agnostic.
 224 # Alternative to this heuristic approach is to develop specific
 225 # MacOS X dso module relying on whichever "native" dyld interface.
 226 link_o.darwin:
 227         @ $(CALC_VERSIONS); \
 228         SHLIB=lib$(LIBNAME); \
 229         SHLIB_SUFFIX=.dylib; \
 230         ALLSYMSFLAGS='-all_load'; \
 231         NOALLSYMSFLAGS=''; \
 232         SHAREDFLAGS="$(CFLAGS) `echo $(SHARED_LDFLAGS) | sed s/dynamiclib/bundle/`"; \
 233         if [ -n "$(LIBVERSION)" ]; then \
 234                 SHAREDFLAGS="$$SHAREDFLAGS -current_version $(LIBVERSION)"; \
 235         fi; \
 236         if [ -n "$$SHLIB_SOVER_NODOT" ]; then \
 237                 SHAREDFLAGS="$$SHAREDFLAGS -compatibility_version $$SHLIB_SOVER_NODOT"; \
 238         fi; \
 239         $(LINK_SO_O)
 240 link_a.darwin:
 241         @ $(CALC_VERSIONS); \
 242         SHLIB=lib$(LIBNAME); \
 243         SHLIB_SUFFIX=.dylib; \
 244         ALLSYMSFLAGS='-all_load'; \
 245         NOALLSYMSFLAGS=''; \
 246         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS)"; \
 247         if [ -n "$(LIBVERSION)" ]; then \
 248                 SHAREDFLAGS="$$SHAREDFLAGS -current_version $(LIBVERSION)"; \
 249         fi; \
 250         if [ -n "$$SHLIB_SOVER_NODOT" ]; then \
 251                 SHAREDFLAGS="$$SHAREDFLAGS -compatibility_version $$SHLIB_SOVER_NODOT"; \
 252         fi; \
 253         SHAREDFLAGS="$$SHAREDFLAGS -install_name $(INSTALLTOP)/$(LIBDIR)/$$SHLIB$(SHLIB_EXT)"; \
 254         $(LINK_SO_A)
 255 link_app.darwin:        # is there run-path on darwin?
 256         $(LINK_APP)
 257
 258 link_o.cygwin:
 259         @ $(CALC_VERSIONS); \
 260         INHIBIT_SYMLINKS=yes; \
 261         SHLIB=cyg$(LIBNAME); \
 262         base=-Wl,--enable-auto-image-base; \
 263         deffile=; \
 264         if expr $(PLATFORM) : 'mingw' > /dev/null; then \
 265                 SHLIB=$(LIBNAME)eay32; base=; \
 266                 if test -f $(LIBNAME)eay32.def; then \
 267                         deffile=$(LIBNAME)eay32.def; \
 268                 fi; \
 269         fi; \
 270         SHLIB_SUFFIX=.dll; \
 271         LIBVERSION="$(LIBVERSION)"; \
 272         SHLIB_SOVER=${LIBVERSION:+"-$(LIBVERSION)"}; \
 273         ALLSYMSFLAGS='-Wl,--whole-archive'; \
 274         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 275         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared $$base $$deffile -Wl,-s,-Bsymbolic"; \
 276         $(LINK_SO_O)
 277 #for mingw target if def-file is in use dll-name should match library-name
 278 link_a.cygwin:
 279         @ $(CALC_VERSIONS); \
 280         INHIBIT_SYMLINKS=yes; \
 281         SHLIB=cyg$(LIBNAME); SHLIB_SOVER=-$(LIBVERSION); SHLIB_SUFFIX=.dll; \
 282         dll_name=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX; extras=; \
 283         base=-Wl,--enable-auto-image-base; \
 284         if expr $(PLATFORM) : 'mingw' > /dev/null; then \
 285                 case $(LIBNAME) in \
 286                         crypto) SHLIB=libeay;; \
 287                         ssl) SHLIB=ssleay;; \
 288                 esac; \
 289                 SHLIB_SOVER=32; \
 290                 extras="$(LIBNAME).def"; \
 291                 $(PERL) util/mkdef.pl 32 $$SHLIB > $$extras; \
 292                 base=; [ $(LIBNAME) = "crypto" ] && base=-Wl,--image-base,0x63000000; \
 293         fi; \
 294         dll_name=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX; \
 295         $(PERL) util/mkrc.pl $$dll_name | \
 296                 $(CROSS_COMPILE)windres -o rc.o; \
 297         extras="$$extras rc.o"; \
 298         ALLSYMSFLAGS='-Wl,--whole-archive'; \
 299         NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 300         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared $$base -Wl,-s,-Bsymbolic -Wl,--out-implib,lib$(LIBNAME).dll.a $$extras"; \
 301         [ -f apps/$$dll_name ] && rm apps/$$dll_name; \
 302         [ -f test/$$dll_name ] && rm test/$$dll_name; \
 303         $(LINK_SO_A) || exit 1; \
 304         rm $$extras; \
 305         cp -p $$dll_name apps/; \
 306         cp -p $$dll_name test/
 307 link_app.cygwin:
 308         @if expr "$(CFLAGS)" : '.*OPENSSL_USE_APPLINK' > /dev/null; then \
 309                 LIBDEPS="$(TOP)/crypto/applink.o $${LIBDEPS:-$(LIBDEPS)}"; \
 310                 export LIBDEPS; \
 311         fi; \
 312         $(LINK_APP)
 313
 314 link_o.alpha-osf1:
 315         @ if $(DETECT_GNU_LD); then \
 316                 $(DO_GNU_SO); \
 317         else \
 318                 SHLIB=lib$(LIBNAME).so; \
 319                 SHLIB_SUFFIX=; \
 320                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 321                 if [ -n "$$SHLIB_HIST" ]; then \
 322                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 323                 else \
 324                         SHLIB_HIST="$(LIBVERSION)"; \
 325                 fi; \
 326                 SHLIB_SOVER=; \
 327                 ALLSYMSFLAGS='-all'; \
 328                 NOALLSYMSFLAGS='-none'; \
 329                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-B,symbolic"; \
 330                 if [ -n "$$SHLIB_HIST" ]; then \
 331                         SHAREDFLAGS="$$SHAREDFLAGS -set_version $$SHLIB_HIST"; \
 332                 fi; \
 333         fi; \
 334         $(LINK_SO_O)
 335 link_a.alpha-osf1:
 336         @ if $(DETECT_GNU_LD); then \
 337                 $(DO_GNU_SO); \
 338         else \
 339                 SHLIB=lib$(LIBNAME).so; \
 340                 SHLIB_SUFFIX=; \
 341                 SHLIB_HIST=`echo "$(LIBCOMPATVERSIONS)" | cut -d';' -f2 | sed -e 's/ */:/'`; \
 342                 if [ -n "$$SHLIB_HIST" ]; then \
 343                         SHLIB_HIST="$${SHLIB_HIST}:$(LIBVERSION)"; \
 344                 else \
 345                         SHLIB_HIST="$(LIBVERSION)"; \
 346                 fi; \
 347                 SHLIB_SOVER=; \
 348                 ALLSYMSFLAGS='-all'; \
 349                 NOALLSYMSFLAGS='-none'; \
 350                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-B,symbolic"; \
 351                 if [ -n "$$SHLIB_HIST" ]; then \
 352                         SHAREDFLAGS="$$SHAREDFLAGS -set_version $$SHLIB_HIST"; \
 353                 fi; \
 354         fi; \
 355         $(LINK_SO_A)
 356 link_app.alpha-osf1:
 357         @if $(DETECT_GNU_LD); then \
 358                 $(DO_GNU_APP); \
 359         else \
 360                 LDFLAGS="$(CFLAGS) -rpath $(LIBRPATH)"; \
 361         fi; \
 362         $(LINK_APP)
 363
 364 link_o.solaris:
 365         @ if $(DETECT_GNU_LD); then \
 366                 $(DO_GNU_SO); \
 367         else \
 368                 $(CALC_VERSIONS); \
 369                 MINUSZ='-z '; \
 370                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSZ='-Wl,-z,'; \
 371                 SHLIB=lib$(LIBNAME).so; \
 372                 SHLIB_SUFFIX=; \
 373                 ALLSYMSFLAGS="$${MINUSZ}allextract"; \
 374                 NOALLSYMSFLAGS="$${MINUSZ}defaultextract"; \
 375                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-Bsymbolic"; \
 376         fi; \
 377         $(LINK_SO_O)
 378 link_a.solaris:
 379         @ if $(DETECT_GNU_LD); then \
 380                 $(DO_GNU_SO); \
 381         else \
 382                 $(CALC_VERSIONS); \
 383                 MINUSZ='-z '; \
 384                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSZ='-Wl,-z,'; \
 385                 SHLIB=lib$(LIBNAME).so; \
 386                 SHLIB_SUFFIX=;\
 387                 ALLSYMSFLAGS="$${MINUSZ}allextract"; \
 388                 NOALLSYMSFLAGS="$${MINUSZ}defaultextract"; \
 389                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX -Wl,-Bsymbolic"; \
 390         fi; \
 391         $(LINK_SO_A)
 392 link_app.solaris:
 393         @ if $(DETECT_GNU_LD); then \
 394                 $(DO_GNU_APP); \
 395         else \
 396                 LDFLAGS="$(CFLAGS) -R $(LIBRPATH)"; \
 397         fi; \
 398         $(LINK_APP)
 399
 400 # OpenServer 5 native compilers used
 401 link_o.svr3:
 402         @ if $(DETECT_GNU_LD); then \
 403                 $(DO_GNU_SO); \
 404         else \
 405                 $(CALC_VERSIONS); \
 406                 SHLIB=lib$(LIBNAME).so; \
 407                 SHLIB_SUFFIX=; \
 408                 ALLSYMSFLAGS=''; \
 409                 NOALLSYMSFLAGS=''; \
 410                 SHAREDFLAGS="$(CFLAGS) -G -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 411         fi; \
 412         $(LINK_SO_O)
 413 link_a.svr3:
 414         @ if $(DETECT_GNU_LD); then \
 415                 $(DO_GNU_SO); \
 416         else \
 417                 $(CALC_VERSIONS); \
 418                 SHLIB=lib$(LIBNAME).so; \
 419                 SHLIB_SUFFIX=; \
 420                 ALLSYMSFLAGS=''; \
 421                 NOALLSYMSFLAGS=''; \
 422                 SHAREDFLAGS="$(CFLAGS) -G -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 423         fi; \
 424         $(LINK_SO_A_UNPACKED)
 425 link_app.svr3:
 426         @$(DETECT_GNU_LD) && $(DO_GNU_APP); \
 427         $(LINK_APP)
 428
 429 # UnixWare 7 and OpenUNIX 8 native compilers used
 430 link_o.svr5:
 431         @ if $(DETECT_GNU_LD); then \
 432                 $(DO_GNU_SO); \
 433         else \
 434                 $(CALC_VERSIONS); \
 435                 SHARE_FLAG='-G'; \
 436                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
 437                 SHLIB=lib$(LIBNAME).so; \
 438                 SHLIB_SUFFIX=; \
 439                 ALLSYMSFLAGS=''; \
 440                 NOALLSYMSFLAGS=''; \
 441                 SHAREDFLAGS="$(CFLAGS) $${SHARE_FLAG} -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 442         fi; \
 443         $(LINK_SO_O)
 444 link_a.svr5:
 445         @ if $(DETECT_GNU_LD); then \
 446                 $(DO_GNU_SO); \
 447         else \
 448                 $(CALC_VERSIONS); \
 449                 SHARE_FLAG='-G'; \
 450                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
 451                 SHLIB=lib$(LIBNAME).so; \
 452                 SHLIB_SUFFIX=; \
 453                 ALLSYMSFLAGS=''; \
 454                 NOALLSYMSFLAGS=''; \
 455                 SHAREDFLAGS="$(CFLAGS) $${SHARE_FLAG} -h $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX"; \
 456         fi; \
 457         $(LINK_SO_A_UNPACKED)
 458 link_app.svr5:
 459         @$(DETECT_GNU_LD) && $(DO_GNU_APP); \
 460         $(LINK_APP)
 461
 462 link_o.irix:
 463         @ if $(DETECT_GNU_LD); then \
 464                 $(DO_GNU_SO); \
 465         else \
 466                 $(CALC_VERSIONS); \
 467                 SHLIB=lib$(LIBNAME).so; \
 468                 SHLIB_SUFFIX=; \
 469                 MINUSWL=""; \
 470                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSWL="-Wl,"; \
 471                 ALLSYMSFLAGS="$${MINUSWL}-all"; \
 472                 NOALLSYMSFLAGS="$${MINUSWL}-none"; \
 473                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-soname,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,-B,symbolic"; \
 474         fi; \
 475         $(LINK_SO_O)
 476 link_a.irix:
 477         @ if $(DETECT_GNU_LD); then \
 478                 $(DO_GNU_SO); \
 479         else \
 480                 $(CALC_VERSIONS); \
 481                 SHLIB=lib$(LIBNAME).so; \
 482                 SHLIB_SUFFIX=; \
 483                 MINUSWL=""; \
 484                 ($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSWL="-Wl,"; \
 485                 ALLSYMSFLAGS="$${MINUSWL}-all"; \
 486                 NOALLSYMSFLAGS="$${MINUSWL}-none"; \
 487                 SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-soname,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,-B,symbolic"; \
 488         fi; \
 489         $(LINK_SO_A)
 490 link_app.irix:
 491         @LDFLAGS="$(CFLAGS) -Wl,-rpath,$(LIBRPATH)"; \
 492         $(LINK_APP)
 493
 494 # 32-bit PA-RISC HP-UX embeds the -L pathname of libs we link with, so
 495 # we compensate for it with +cdp ../: and +cdp ./:. Yes, these rewrite
 496 # rules imply that we can only link one level down in catalog structure,
 497 # but that's what takes place for the moment of this writing. +cdp option
 498 # was introduced in HP-UX 11.x and applies in 32-bit PA-RISC link
 499 # editor context only [it's simply ignored in other cases, which are all
 500 # ELFs by the way].
 501 #
 502 link_o.hpux:
 503         @if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
 504         $(CALC_VERSIONS); \
 505         SHLIB=lib$(LIBNAME).sl; \
 506         expr "$(CFLAGS)" : '.*DSO_DLFCN' > /dev/null && SHLIB=lib$(LIBNAME).so; \
 507         SHLIB_SUFFIX=; \
 508         ALLSYMSFLAGS='-Wl,-Fl'; \
 509         NOALLSYMSFLAGS=''; \
 510         expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
 511         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+h,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,+cdp,../:,+cdp,./:"; \
 512         fi; \
 513         rm -f $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX || :; \
 514         $(LINK_SO_O) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
 515 link_a.hpux:
 516         @if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
 517         $(CALC_VERSIONS); \
 518         SHLIB=lib$(LIBNAME).sl; \
 519         expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
 520         SHLIB_SUFFIX=; \
 521         ALLSYMSFLAGS='-Wl,-Fl'; \
 522         NOALLSYMSFLAGS=''; \
 523         expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
 524         SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+h,$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX,+cdp,../:,+cdp,./:"; \
 525         fi; \
 526         rm -f $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX || :; \
 527         $(LINK_SO_A) && chmod a=rx $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX
 528 link_app.hpux:
 529         @if $(DETECT_GNU_LD); then $(DO_GNU_APP); else \
 530         LDFLAGS="$(CFLAGS) -Wl,+s,+cdp,../:,+cdp,./:,+b,$(LIBRPATH)"; \
 531         fi; \
 532         $(LINK_APP)
 533
 534 link_o.aix:
 535         @ $(CALC_VERSIONS); \
 536         OBJECT_MODE=`expr "x$(SHARED_LDFLAGS)" : 'x\-[a-z]*\(64\)'` || :; \
 537         OBJECT_MODE=$${OBJECT_MODE:-32}; export OBJECT_MODE; \
 538         SHLIB=lib$(LIBNAME).so; \
 539         SHLIB_SUFFIX=; \
 540         ALLSYMSFLAGS=''; \
 541         NOALLSYMSFLAGS=''; \
 542         SHAREDFLAGS='$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-bexpall,-bnolibpath,-bM:SRE'; \
 543         $(LINK_SO_O);
 544 link_a.aix:
 545         @ $(CALC_VERSIONS); \
 546         OBJECT_MODE=`expr "x$(SHARED_LDFLAGS)" : 'x\-[a-z]*\(64\)'` || : ; \
 547         OBJECT_MODE=$${OBJECT_MODE:-32}; export OBJECT_MODE; \
 548         SHLIB=lib$(LIBNAME).so; \
 549         SHLIB_SUFFIX=; \
 550         ALLSYMSFLAGS='-bnogc'; \
 551         NOALLSYMSFLAGS=''; \
 552         SHAREDFLAGS='$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-bexpall,-bnolibpath,-bM:SRE'; \
 553         $(LINK_SO_A_VIA_O)
 554 link_app.aix:
 555         LDFLAGS="$(CFLAGS) -Wl,-brtl,-blibpath:$(LIBRPATH):$${LIBPATH:-/usr/lib:/lib}"; \
 556         $(LINK_APP)
 557
 558 link_o.reliantunix:
 559         @ $(CALC_VERSIONS); \
 560         SHLIB=lib$(LIBNAME).so; \
 561         SHLIB_SUFFIX=; \
 562         ALLSYMSFLAGS=; \
 563         NOALLSYMSFLAGS=''; \
 564         SHAREDFLAGS='$(CFLAGS) -G'; \
 565         $(LINK_SO_O)
 566 link_a.reliantunix:
 567         @ $(CALC_VERSIONS); \
 568         SHLIB=lib$(LIBNAME).so; \
 569         SHLIB_SUFFIX=; \
 570         ALLSYMSFLAGS=; \
 571         NOALLSYMSFLAGS=''; \
 572         SHAREDFLAGS='$(CFLAGS) -G'; \
 573         $(LINK_SO_A_UNPACKED)
 574 link_app.reliantunix:
 575         $(LINK_APP)
 576
 577 # Targets to build symbolic links when needed
 578 symlink.gnu symlink.solaris symlink.svr3 symlink.svr5 symlink.irix \
 579 symlink.aix symlink.reliantunix:
 580         @ $(CALC_VERSIONS); \
 581         SHLIB=lib$(LIBNAME).so; \
 582         $(SYMLINK_SO)
 583 symlink.darwin:
 584         @ $(CALC_VERSIONS); \
 585         SHLIB=lib$(LIBNAME); \
 586         SHLIB_SUFFIX=.dylib; \
 587         $(SYMLINK_SO)
 588 symlink.hpux:
 589         @ $(CALC_VERSIONS); \
 590         SHLIB=lib$(LIBNAME).sl; \
 591         expr $(PLATFORM) : '.*ia64' > /dev/null && SHLIB=lib$(LIBNAME).so; \
 592         $(SYMLINK_SO)
 593 # The following lines means those specific architectures do no symlinks
 594 symlink.cygwin symlink.alpha-osf1 symlink.tru64 symlink.tru64-rpath symlink.beos:
 595
 596 # Compatibility targets
 597 link_o.bsd-gcc-shared link_o.linux-shared link_o.gnu-shared: link_o.gnu
 598 link_a.bsd-gcc-shared link_a.linux-shared link_a.gnu-shared: link_a.gnu
 599 link_app.bsd-gcc-shared link_app.linux-shared link_app.gnu-shared: link_app.gnu
 600 symlink.bsd-gcc-shared symlink.bsd-shared symlink.linux-shared symlink.gnu-shared: symlink.gnu
 601 link_o.bsd-shared: link_o.bsd
 602 link_a.bsd-shared: link_a.bsd
 603 link_app.bsd-shared: link_app.bsd
 604 link_o.darwin-shared: link_o.darwin
 605 link_a.darwin-shared: link_a.darwin
 606 link_app.darwin-shared: link_app.darwin
 607 symlink.darwin-shared: symlink.darwin
 608 link_o.cygwin-shared: link_o.cygwin
 609 link_a.cygwin-shared: link_a.cygwin
 610 link_app.cygwin-shared: link_app.cygwin
 611 symlink.cygwin-shared: symlink.cygwin
 612 link_o.alpha-osf1-shared: link_o.alpha-osf1
 613 link_a.alpha-osf1-shared: link_a.alpha-osf1
 614 link_app.alpha-osf1-shared: link_app.alpha-osf1
 615 symlink.alpha-osf1-shared: symlink.alpha-osf1
 616 link_o.tru64-shared: link_o.tru64
 617 link_a.tru64-shared: link_a.tru64
 618 link_app.tru64-shared: link_app.tru64
 619 symlink.tru64-shared: symlink.tru64
 620 link_o.tru64-shared-rpath: link_o.tru64-rpath
 621 link_a.tru64-shared-rpath: link_a.tru64-rpath
 622 link_app.tru64-shared-rpath: link_app.tru64-rpath
 623 symlink.tru64-shared-rpath: symlink.tru64-rpath
 624 link_o.solaris-shared: link_o.solaris
 625 link_a.solaris-shared: link_a.solaris
 626 link_app.solaris-shared: link_app.solaris
 627 symlink.solaris-shared: symlink.solaris
 628 link_o.svr3-shared: link_o.svr3
 629 link_a.svr3-shared: link_a.svr3
 630 link_app.svr3-shared: link_app.svr3
 631 symlink.svr3-shared: symlink.svr3
 632 link_o.svr5-shared: link_o.svr5
 633 link_a.svr5-shared: link_a.svr5
 634 link_app.svr5-shared: link_app.svr5
 635 symlink.svr5-shared: symlink.svr5
 636 link_o.irix-shared: link_o.irix
 637 link_a.irix-shared: link_a.irix
 638 link_app.irix-shared: link_app.irix
 639 symlink.irix-shared: symlink.irix
 640 link_o.hpux-shared: link_o.hpux
 641 link_a.hpux-shared: link_a.hpux
 642 link_app.hpux-shared: link_app.hpux
 643 symlink.hpux-shared: symlink.hpux
 644 link_o.aix-shared: link_o.aix
 645 link_a.aix-shared: link_a.aix
 646 link_app.aix-shared: link_app.aix
 647 symlink.aix-shared: symlink.aix
 648 link_o.reliantunix-shared: link_o.reliantunix
 649 link_a.reliantunix-shared: link_a.reliantunix
 650 link_app.reliantunix-shared: link_app.reliantunix
 651 symlink.reliantunix-shared: symlink.reliantunix
 652 link_o.beos-shared: link_o.beos
 653 link_a.beos-shared: link_a.beos
 654 link_app.beos-shared: link_app.gnu
 655 symlink.beos-shared: symlink.beos