Makefile.shared - third_party/openssl - Git at Google

 #
 # Helper makefile to link shared libraries in a portable way.
 # This is much simpler than libtool, and hopefully not too error-prone.
 #
 # The following variables need to be set on the command line to build
 # properly

 # CC contains the current compiler.  This one MUST be defined
 CC=cc
 CFLAGS=$(CFLAG)
 # LDFLAGS contains flags to be used when temporary object files (when building
 # shared libraries) are created, or when an application is linked.
 # SHARED_LDFLAGS contains flags to be used when the shared library is created.
 LDFLAGS=$(LDFLAG)
 SHARED_LDFLAGS=$(SHARED_LDFLAG)

 RC=windres
 # SHARED_RCFLAGS are flags used with windres, i.e. when build for Cygwin
 # or Mingw.
 SHARED_RCFLAGS=$(SHARED_RCFLAG)

 NM=nm
 ECHO=echo

 # LIBNAME contains just the name of the library, without prefix ("lib"
 # on Unix, "cyg" for certain forms under Cygwin...) or suffix (.a, .so,
 # .dll, ...).  This one MUST have a value when using this makefile to
 # build shared libraries.
 # For example, to build libfoo.so, you need to do the following:
 #LIBNAME=foo
 LIBNAME=

 # STLIBNAME contains the path of the static library to build the shared
 # library from, for example:
 #STLIBNAME=libfoo.a
 STLIBNAME=

 # On most Unix platforms, SHLIBNAME contains the path of the short name of
 # the shared library to build, for example
 #SHLIBNAME=libfoo.so
 # On Windows POSIX layers (cygwin and mingw), SHLIBNAME contains the import
 # library name for the shared library to be built, for example:
 #SHLIBNAME=libfoo.dll.a

 # SHLIBNAME_FULL contains the path of the full name of the shared library to
 # build, for example:
 #SHLIBNAME_FULL=libfoo.so.1.2
 # When building DSOs, SHLIBNAME_FULL contains path of the full DSO name, for
 # example:
 #SHLIBNAME_FULL=dir/dso.so
 SHLIBNAME_FULL=

 # SHLIBVERSION contains the current version of the shared library (not to
 # be confused with the project version)
 #SHLIBVERSION=1.2
 SHLIBVERSION=

 # NOTE: to build shared libraries, LIBNAME, STLIBNAME, SHLIBNAME and
 # SHLIBNAME_FULL MUST have values when using this makefile, and in some
 # cases, SHLIBVERSION as well.  To build DSOs, SHLIBNAME_FULL MUST have
 # a value, the rest can be left alone.


 # APPNAME contains just the name of the application, without suffix (""
 # on Unix, ".exe" on Windows, ...).  This one MUST have a value when using
 # this makefile to build applications.
 # For example, to build foo, you need to do the following:
 #APPNAME=foo
 APPNAME=

 # SRCDIR is the top directory of the source tree.
 SRCDIR=.

 # OBJECTS contains all the object files to link together into the application.
 # This must contain at least one object file.
 #OBJECTS=foo.o
 OBJECTS=

 # LIBEXTRAS contains extra modules to link together with the library.
 # For example, if a second library, say libbar.a needs to be linked into
 # libfoo.so, you need to do the following:
 #LIBEXTRAS=libbar.a
 # Note that this MUST be used when using the link_dso targets, to hold the
 # names of all object files that go into the target shared object.
 LIBEXTRAS=

 # LIBDEPS contains all the flags necessary to cover all necessary
 # dependencies to other libraries.
 LIBDEPS=

 #------------------------------------------------------------------------------
 # The rest is private to this makefile.

 SET_X=:
 #SET_X=set -x

 top:
 	echo "Trying to use this makefile interactively?  Don't." ; exit 1

 LINK_APP=	\
   ( $(SET_X);   \
     LIBDEPS="$${LIBDEPS:-$(LIBDEPS)}"; \
     LDCMD="$${LDCMD:-$(CC)}"; LDFLAGS="$${LDFLAGS:-$(CFLAGS) $(LDFLAGS)}"; \
     LIBPATH=`for x in $$LIBDEPS; do echo $$x; done | sed -e 's/^ *-L//;t' -e d | uniq`; \
     LIBPATH=`echo $$LIBPATH | sed -e 's/ /:/g'`; \
     $(ECHO) LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
         $${LDCMD} $${LDFLAGS} -o $${APPNAME:=$(APPNAME)} $(OBJECTS) $${LIBDEPS}; \
     LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
     $${LDCMD} $${LDFLAGS} -o $${APPNAME:=$(APPNAME)} $(OBJECTS) $${LIBDEPS} )

 LINK_SO=	\
   ( $(SET_X);   \
     LIBDEPS="$${LIBDEPS:-$(LIBDEPS)}"; \
     SHAREDCMD="$${SHAREDCMD:-$(CC)}"; \
     SHAREDFLAGS="$${SHAREDFLAGS:-$(CFLAGS) $(SHARED_LDFLAGS)}"; \
     LIBPATH=`for x in $$LIBDEPS; do echo $$x; done | sed -e 's/^ *-L//;t' -e d | uniq`; \
     LIBPATH=`echo $$LIBPATH | sed -e 's/ /:/g'`; \
     $(ECHO) LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
          $${SHAREDCMD} $${SHAREDFLAGS} \
 	     -o $(SHLIBNAME_FULL) \
 	     $$ALLSYMSFLAGS $$SHOBJECTS $$NOALLSYMSFLAGS $$LIBDEPS; \
     LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
     $${SHAREDCMD} $${SHAREDFLAGS} \
 	-o $(SHLIBNAME_FULL) \
 	$$ALLSYMSFLAGS $$SHOBJECTS $$NOALLSYMSFLAGS $$LIBDEPS \
   ) && $(SYMLINK_SO)

 SYMLINK_SO=	\
 	if [ -n "$$INHIBIT_SYMLINKS" ]; then :; else \
 		if [ -n "$(SHLIBNAME_FULL)" -a -n "$(SHLIBNAME)" -a \
 		     "$(SHLIBNAME_FULL)" != "$(SHLIBNAME)" ]; then \
 			( $(SET_X); \
 			  rm -f $(SHLIBNAME); \
 			  ln -s $(SHLIBNAME_FULL) $(SHLIBNAME) ); \
 		fi; \
 	fi

 LINK_SO_SHLIB=	SHOBJECTS="$(STLIBNAME) $(LIBEXTRAS)"; $(LINK_SO)
 LINK_SO_DSO=	INHIBIT_SYMLINKS=yes; SHOBJECTS="$(LIBEXTRAS)"; $(LINK_SO)

 LINK_SO_SHLIB_VIA_O=	\
   SHOBJECTS=$(STLIBNAME).o; \
   ALL=$$ALLSYMSFLAGS; ALLSYMSFLAGS=; NOALLSYMSFLAGS=; \
   ( $(ECHO) ld $(LDFLAGS) -r -o $$SHOBJECTS $$ALL $(STLIBNAME) $(LIBEXTRAS); \
     ld $(LDFLAGS) -r -o $$SHOBJECTS $$ALL $(STLIBNAME) $(LIBEXTRAS) ); \
   $(LINK_SO) && ( $(ECHO) rm -f $$SHOBJECTS; rm -f $$SHOBJECTS )

 LINK_SO_SHLIB_UNPACKED=	\
   UNPACKDIR=link_tmp.$$$$; rm -rf $$UNPACKDIR; mkdir $$UNPACKDIR; \
   (cd $$UNPACKDIR; ar x ../$(STLIBNAME)) && \
   ([ -z "$(LIBEXTRAS)" ] || cp $(LIBEXTRAS) $$UNPACKDIR) && \
   SHOBJECTS=$$UNPACKDIR/*.o; \
   $(LINK_SO) && rm -rf $$UNPACKDIR

 DETECT_GNU_LD=($(CC) -Wl,-V /dev/null 2>&1 | grep '^GNU ld' )>/dev/null

 DO_GNU_SO_COMMON=\
 	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-Bsymbolic -Wl,-soname=$(SHLIBNAME_FULL)"
 DO_GNU_DSO=\
 	$(DO_GNU_SO_COMMON)
 DO_GNU_SO=\
 	ALLSYMSFLAGS='-Wl,--whole-archive'; \
 	NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 	$(DO_GNU_SO_COMMON)
 DO_GNU_APP=LDFLAGS="$(CFLAGS) $(LDFLAGS)"

 #This is rather special.  It's a special target with which one can link
 #applications without bothering with any features that have anything to
 #do with shared libraries, for example when linking against static
 #libraries.  It's mostly here to avoid a lot of conditionals everywhere
 #else...
 link_app.:
 	$(LINK_APP)

 link_dso.gnu:
 	@ $(DO_GNU_DSO); $(LINK_SO_DSO)
 link_shlib.gnu:
 	@ $(DO_GNU_SO); $(LINK_SO_SHLIB)
 link_app.gnu:
 	@ $(DO_GNU_APP); $(LINK_APP)

 link_shlib.linux-shared:
 	@$(PERL) $(SRCDIR)/util/mkdef.pl $(LIBNAME) linux >$(LIBNAME).map; \
 	$(DO_GNU_SO); \
 	ALLSYMSFLAGS='-Wl,--whole-archive,--version-script=$(LIBNAME).map'; \
 	$(LINK_SO_SHLIB)

 link_dso.bsd:
 	@if $(DETECT_GNU_LD); then $(DO_GNU_DSO); else \
 	LIBDEPS=" "; \
 	ALLSYMSFLAGS=; \
 	NOALLSYMSFLAGS=; \
 	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -nostdlib"; \
 	fi; $(LINK_SO_DSO)
 link_shlib.bsd:
 	@if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
 	LIBDEPS=" "; \
 	ALLSYMSFLAGS="-Wl,-Bforcearchive"; \
 	NOALLSYMSFLAGS=; \
 	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -nostdlib"; \
 	fi; $(LINK_SO_SHLIB)
 link_app.bsd:
 	@if $(DETECT_GNU_LD); then $(DO_GNU_APP); else \
 	LDFLAGS="$(CFLAGS) $(LDFLAGS)"; \
 	fi; $(LINK_APP)

 # For Darwin AKA Mac OS/X (dyld)
 # Originally link_dso.darwin produced .so, because it was hard-coded
 # in dso_dlfcn module. At later point dso_dlfcn switched to .dylib
 # extension in order to allow for run-time linking with vendor-
 # supplied shared libraries such as libz, so that link_dso.darwin had
 # to be harmonized with it. This caused minor controversy, because
 # it was believed that dlopen can't be used to dynamically load
 # .dylib-s, only so called bundle modules (ones linked with -bundle
 # flag). The belief seems to be originating from pre-10.4 release,
 # where dlfcn functionality was emulated by dlcompat add-on. In
 # 10.4 dlopen was rewritten as native part of dyld and is documented
 # to be capable of loading both dynamic libraries and bundles. In
 # order to provide compatibility with pre-10.4 dlopen, modules are
 # linked with -bundle flag, which makes .dylib extension misleading.
 # It works, because dlopen is [and always was] extension-agnostic.
 # Alternative to this heuristic approach is to develop specific
 # MacOS X dso module relying on whichever "native" dyld interface.
 link_dso.darwin:
 	@ ALLSYMSFLAGS=''; \
 	NOALLSYMSFLAGS=''; \
 	SHAREDFLAGS="$(CFLAGS) `echo $(SHARED_LDFLAGS) | sed s/dynamiclib/bundle/`"; \
 	$(LINK_SO_DSO)
 link_shlib.darwin:
 	@ ALLSYMSFLAGS='-all_load'; \
 	NOALLSYMSFLAGS=''; \
 	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -current_version $(SHLIBVERSION) -compatibility_version $(SHLIBVERSION) -install_name $(INSTALLTOP)/$(LIBDIR)/$(SHLIBNAME_FULL)"; \
 	$(LINK_SO_SHLIB)
 link_app.darwin:	# is there run-path on darwin?
 	$(LINK_APP)

 link_dso.cygwin:
 	@ALLSYMSFLAGS=''; \
 	NOALLSYMSFLAGS=''; \
 	base=-Wl,--enable-auto-image-base; \
 	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared $$base -Wl,-Bsymbolic"; \
 	$(LINK_SO_DSO)
 link_shlib.cygwin:
 	@ INHIBIT_SYMLINKS=yes; \
 	$(ECHO) "$(PERL) $(SRCDIR)/util/mkrc.pl $(SHLIBNAME_FULL) |" \
 		     "$(RC) $(SHARED_RCFLAGS) -o rc.o"; \
 	$(PERL) $(SRCDIR)/util/mkrc.pl $(SHLIBNAME_FULL) | \
 		$(RC) $(SHARED_RCFLAGS) -o rc.o; \
 	ALLSYMSFLAGS='-Wl,--whole-archive'; \
 	NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,--enable-auto-image-base -Wl,-Bsymbolic -Wl,--out-implib,$(SHLIBNAME) rc.o"; \
 	$(LINK_SO_SHLIB) || exit 1; \
 	rm rc.o
 link_app.cygwin:
 	$(LINK_APP)

 # link_dso.mingw-shared and link_app.mingw-shared are mapped to the
 # corresponding cygwin targets, as they do the exact same thing.
 link_shlib.mingw:
 	@ INHIBIT_SYMLINKS=yes; \
 	$(PERL) $(SRCDIR)/util/mkdef.pl 32 $(LIBNAME) \
 		| sed -e 's|^\(LIBRARY  *\)$(LIBNAME)32|\1$(SHLIBNAME_FULL)|' \
 		> $(LIBNAME).def; \
 	echo "$(PERL) $(SRCDIR)/util/mkrc.pl $(SHLIBNAME_FULL) |" \
 		"$(RC) $(SHARED_RCFLAGS) -o rc.o"; \
 	$(PERL) $(SRCDIR)/util/mkrc.pl $(SHLIBNAME_FULL) | \
 		$(RC) $(SHARED_RCFLAGS) -o rc.o; \
 	ALLSYMSFLAGS='-Wl,--whole-archive'; \
 	NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
 	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-Bsymbolic -Wl,--out-implib,$(SHLIBNAME) $(LIBNAME).def rc.o"; \
 	$(LINK_SO_SHLIB) || exit 1; \
 	rm $(LIBNAME).def rc.o

 link_dso.alpha-osf1:
 	@ if $(DETECT_GNU_LD); then \
 		$(DO_GNU_DSO); \
 	else \
 		ALLSYMSFLAGS=''; \
 		NOALLSYMSFLAGS=''; \
 		SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-B,symbolic"; \
 	fi; \
 	$(LINK_SO_DSO)
 link_shlib.alpha-osf1:
 	@ if $(DETECT_GNU_LD); then \
 		$(DO_GNU_SO); \
 	else \
 		ALLSYMSFLAGS='-all'; \
 		NOALLSYMSFLAGS='-none'; \
 		SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-B,symbolic -set_version $(SHLIBVERSION)"; \
 	fi; \
 	$(LINK_SO_SHLIB)
 link_app.alpha-osf1:
 	@if $(DETECT_GNU_LD); then \
 		$(DO_GNU_APP); \
 	else \
 		LDFLAGS="$(CFLAGS) $(LDFLAGS)"; \
 	fi; \
 	$(LINK_APP)

 link_dso.solaris:
 	@ if $(DETECT_GNU_LD); then \
 		$(DO_GNU_DSO); \
 	else \
 		ALLSYMSFLAGS=""; \
 		NOALLSYMSFLAGS=""; \
 		SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -h $(SHLIBNAME_FULL) -Wl,-Bsymbolic"; \
 	fi; \
 	$(LINK_SO_DSO)
 link_shlib.solaris:
 	@ if $(DETECT_GNU_LD); then \
 		$(DO_GNU_SO); \
 	else \
 		$(PERL) $(SRCDIR)/util/mkdef.pl $(LIBNAME) linux >$(LIBNAME).map; \
 		ALLSYMSFLAGS="-Wl,-z,allextract,-M,$(LIBNAME).map"; \
 		NOALLSYMSFLAGS="-Wl,-z,defaultextract"; \
 		SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -h $(SHLIBNAME_FULL) -Wl,-Bsymbolic"; \
 	fi; \
 	$(LINK_SO_SHLIB)
 link_app.solaris:
 	@ if $(DETECT_GNU_LD); then \
 		$(DO_GNU_APP); \
 	else \
 		LDFLAGS="$(CFLAGS) $(LDFLAGS)"; \
 	fi; \
 	$(LINK_APP)

 # OpenServer 5 native compilers used
 link_dso.svr3:
 	@ if $(DETECT_GNU_LD); then \
 		$(DO_GNU_DSO); \
 	else \
 		ALLSYMSFLAGS=''; \
 		NOALLSYMSFLAGS=''; \
 		SHAREDFLAGS="$(CFLAGS) -G -h $(SHLIBNAME_FULL)"; \
 	fi; \
 	$(LINK_SO_DSO)
 link_shlib.svr3:
 	@ if $(DETECT_GNU_LD); then \
 		$(DO_GNU_SO); \
 	else \
 		ALLSYMSFLAGS=''; \
 		NOALLSYMSFLAGS=''; \
 		SHAREDFLAGS="$(CFLAGS) -G -h $(SHLIBNAME_FULL)"; \
 	fi; \
 	$(LINK_SO_SHLIB_UNPACKED)
 link_app.svr3:
 	@$(DETECT_GNU_LD) && $(DO_GNU_APP); \
 	$(LINK_APP)

 # UnixWare 7 and OpenUNIX 8 native compilers used
 link_dso.svr5:
 	@ if $(DETECT_GNU_LD); then \
 		$(DO_GNU_DSO); \
 	else \
 		SHARE_FLAG='-G'; \
 		($(CC) -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
 		ALLSYMSFLAGS=''; \
 		NOALLSYMSFLAGS=''; \
 		SHAREDFLAGS="$(CFLAGS) $${SHARE_FLAG} -h $(SHLIBNAME_FULL)"; \
 	fi; \
 	$(LINK_SO_DSO)
 link_shlib.svr5:
 	@ if $(DETECT_GNU_LD); then \
 		$(DO_GNU_SO); \
 	else \
 		SHARE_FLAG='-G'; \
 		($(CC) -v 2>&1 | grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
 		ALLSYMSFLAGS=''; \
 		NOALLSYMSFLAGS=''; \
 		SHAREDFLAGS="$(CFLAGS) $${SHARE_FLAG} -h $(SHLIBNAME_FULL)"; \
 	fi; \
 	$(LINK_SO_SHLIB_UNPACKED)
 link_app.svr5:
 	@$(DETECT_GNU_LD) && $(DO_GNU_APP); \
 	$(LINK_APP)

 link_dso.irix:
 	@ if $(DETECT_GNU_LD); then \
 		$(DO_GNU_DSO); \
 	else \
 		ALLSYMSFLAGS=""; \
 		NOALLSYMSFLAGS=""; \
 		SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-soname,$(SHLIBNAME_FULL),-B,symbolic"; \
 	fi; \
 	$(LINK_SO_DSO)
 link_shlib.irix:
 	@ if $(DETECT_GNU_LD); then \
 		$(DO_GNU_SO); \
 	else \
 		MINUSWL=""; \
 		($(CC) -v 2>&1 | grep gcc) > /dev/null && MINUSWL="-Wl,"; \
 		ALLSYMSFLAGS="$${MINUSWL}-all"; \
 		NOALLSYMSFLAGS="$${MINUSWL}-none"; \
 		SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-soname,$(SHLIBNAME_FULL),-B,symbolic"; \
 	fi; \
 	$(LINK_SO_SHLIB)
 link_app.irix:
 	@LDFLAGS="$(CFLAGS) $(LDFLAGS)"; \
 	$(LINK_APP)

 # 32-bit PA-RISC HP-UX embeds the -L pathname of libs we link with, so
 # we compensate for it with +cdp ../: and +cdp ./:. Yes, these rewrite
 # rules imply that we can only link one level down in catalog structure,
 # but that's what takes place for the moment of this writing. +cdp option
 # was introduced in HP-UX 11.x and applies in 32-bit PA-RISC link
 # editor context only [it's simply ignored in other cases, which are all
 # ELFs by the way].
 #
 link_dso.hpux:
 	@if $(DETECT_GNU_LD); then $(DO_GNU_DSO); else \
 	ALLSYMSFLAGS=''; \
 	NOALLSYMSFLAGS=''; \
 	expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
 	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+h,$(SHLIBNAME_FULL),+cdp,../:,+cdp,./:"; \
 	fi; \
 	rm -f $(SHLIBNAME_FULL) || :; \
 	$(LINK_SO_DSO) && chmod a=rx $(SHLIBNAME_FULL)
 link_shlib.hpux:
 	@if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
 	ALLSYMSFLAGS='-Wl,-Fl'; \
 	NOALLSYMSFLAGS=''; \
 	expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
 	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+h,$(SHLIBNAME_FULL),+cdp,../:,+cdp,./:"; \
 	fi; \
 	rm -f $(SHLIBNAME_FULL) || :; \
 	$(LINK_SO_SHLIB) && chmod a=rx $(SHLIBNAME_FULL)
 link_app.hpux:
 	@if $(DETECT_GNU_LD); then $(DO_GNU_APP); else \
 	LDFLAGS="$(CFLAGS) $(LDFLAGS) -Wl,+s,+cdp,../:,+cdp,./:"; \
 	fi; \
 	$(LINK_APP)

 link_dso.aix:
 	@OBJECT_MODE=`expr "x$(SHARED_LDFLAGS)" : 'x\-[a-z]*\(64\)'` || :; \
 	OBJECT_MODE=$${OBJECT_MODE:-32}; export OBJECT_MODE; \
 	ALLSYMSFLAGS=''; \
 	NOALLSYMSFLAGS=''; \
 	SHAREDFLAGS='$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-bexpall,-bnolibpath,-bM:SRE'; \
 	rm -f $(SHLIBNAME_FULL) 2>&1 > /dev/null ; \
 	$(LINK_SO_DSO);
 link_shlib.aix:
 	@ OBJECT_MODE=`expr "x$(SHARED_LDFLAGS)" : 'x\-[a-z]*\(64\)'` || : ; \
 	OBJECT_MODE=$${OBJECT_MODE:-32}; export OBJECT_MODE; \
 	ALLSYMSFLAGS='-bnogc'; \
 	NOALLSYMSFLAGS=''; \
 	SHAREDFLAGS='$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-bexpall,-bnolibpath,-bM:SRE'; \
 	rm -f $(SHLIBNAME_FULL) 2>&1 > /dev/null ; \
 	$(LINK_SO_SHLIB_VIA_O)
 link_app.aix:
 	LDFLAGS="$(CFLAGS) -Wl,-bsvr4 $(LDFLAGS)"; \
 	$(LINK_APP)


 # Targets to build symbolic links when needed
 symlink.gnu symlink.solaris symlink.svr3 symlink.svr5 symlink.irix \
 symlink.aix:
 	@ $(SYMLINK_SO)
 symlink.darwin:
 	@ $(SYMLINK_SO)
 symlink.hpux:
 	@ $(SYMLINK_SO)
 # The following lines means those specific architectures do no symlinks
 symlink.cygwin symlink.alpha-osf1 symlink.tru64 symlink.tru64-rpath:

 # Compatibility targets
 link_dso.bsd-gcc-shared link_dso.linux-shared link_dso.gnu-shared: link_dso.gnu
 link_shlib.bsd-gcc-shared: link_shlib.linux-shared
 link_shlib.gnu-shared: link_shlib.gnu
 link_app.bsd-gcc-shared link_app.linux-shared link_app.gnu-shared: link_app.gnu
 symlink.bsd-gcc-shared symlink.bsd-shared symlink.linux-shared symlink.gnu-shared: symlink.gnu
 link_dso.bsd-shared: link_dso.bsd
 link_shlib.bsd-shared: link_shlib.bsd
 link_app.bsd-shared: link_app.bsd
 link_dso.darwin-shared: link_dso.darwin
 link_shlib.darwin-shared: link_shlib.darwin
 link_app.darwin-shared: link_app.darwin
 symlink.darwin-shared: symlink.darwin
 link_dso.cygwin-shared: link_dso.cygwin
 link_shlib.cygwin-shared: link_shlib.cygwin
 link_app.cygwin-shared: link_app.cygwin
 symlink.cygwin-shared: symlink.cygwin
 link_dso.mingw-shared: link_dso.cygwin
 link_shlib.mingw-shared: link_shlib.mingw
 link_app.mingw-shared: link_app.cygwin
 symlink.mingw-shared: symlink.cygwin
 link_dso.alpha-osf1-shared: link_dso.alpha-osf1
 link_shlib.alpha-osf1-shared: link_shlib.alpha-osf1
 link_app.alpha-osf1-shared: link_app.alpha-osf1
 symlink.alpha-osf1-shared: symlink.alpha-osf1
 link_dso.tru64-shared: link_dso.tru64
 link_shlib.tru64-shared: link_shlib.tru64
 link_app.tru64-shared: link_app.tru64
 symlink.tru64-shared: symlink.tru64
 link_dso.tru64-shared-rpath: link_dso.tru64-rpath
 link_shlib.tru64-shared-rpath: link_shlib.tru64-rpath
 link_app.tru64-shared-rpath: link_app.tru64-rpath
 symlink.tru64-shared-rpath: symlink.tru64-rpath
 link_dso.solaris-shared: link_dso.solaris
 link_shlib.solaris-shared: link_shlib.solaris
 link_app.solaris-shared: link_app.solaris
 symlink.solaris-shared: symlink.solaris
 link_dso.svr3-shared: link_dso.svr3
 link_shlib.svr3-shared: link_shlib.svr3
 link_app.svr3-shared: link_app.svr3
 symlink.svr3-shared: symlink.svr3
 link_dso.svr5-shared: link_dso.svr5
 link_shlib.svr5-shared: link_shlib.svr5
 link_app.svr5-shared: link_app.svr5
 symlink.svr5-shared: symlink.svr5
 link_dso.irix-shared: link_dso.irix
 link_shlib.irix-shared: link_shlib.irix
 link_app.irix-shared: link_app.irix
 symlink.irix-shared: symlink.irix
 link_dso.hpux-shared: link_dso.hpux
 link_shlib.hpux-shared: link_shlib.hpux
 link_app.hpux-shared: link_app.hpux
 symlink.hpux-shared: symlink.hpux
 link_dso.aix-shared: link_dso.aix
 link_shlib.aix-shared: link_shlib.aix
 link_app.aix-shared: link_app.aix
 symlink.aix-shared: symlink.aix
	#
	# Helper makefile to link shared libraries in a portable way.
	# This is much simpler than libtool, and hopefully not too error-prone.
	#
	# The following variables need to be set on the command line to build
	# properly

	# CC contains the current compiler. This one MUST be defined
	CC=cc
	CFLAGS=$(CFLAG)
	# LDFLAGS contains flags to be used when temporary object files (when building
	# shared libraries) are created, or when an application is linked.
	# SHARED_LDFLAGS contains flags to be used when the shared library is created.
	LDFLAGS=$(LDFLAG)
	SHARED_LDFLAGS=$(SHARED_LDFLAG)

	RC=windres
	# SHARED_RCFLAGS are flags used with windres, i.e. when build for Cygwin
	# or Mingw.
	SHARED_RCFLAGS=$(SHARED_RCFLAG)

	NM=nm
	ECHO=echo

	# LIBNAME contains just the name of the library, without prefix ("lib"
	# on Unix, "cyg" for certain forms under Cygwin...) or suffix (.a, .so,
	# .dll, ...). This one MUST have a value when using this makefile to
	# build shared libraries.
	# For example, to build libfoo.so, you need to do the following:
	#LIBNAME=foo
	LIBNAME=

	# STLIBNAME contains the path of the static library to build the shared
	# library from, for example:
	#STLIBNAME=libfoo.a
	STLIBNAME=

	# On most Unix platforms, SHLIBNAME contains the path of the short name of
	# the shared library to build, for example
	#SHLIBNAME=libfoo.so
	# On Windows POSIX layers (cygwin and mingw), SHLIBNAME contains the import
	# library name for the shared library to be built, for example:
	#SHLIBNAME=libfoo.dll.a

	# SHLIBNAME_FULL contains the path of the full name of the shared library to
	# build, for example:
	#SHLIBNAME_FULL=libfoo.so.1.2
	# When building DSOs, SHLIBNAME_FULL contains path of the full DSO name, for
	# example:
	#SHLIBNAME_FULL=dir/dso.so
	SHLIBNAME_FULL=

	# SHLIBVERSION contains the current version of the shared library (not to
	# be confused with the project version)
	#SHLIBVERSION=1.2
	SHLIBVERSION=

	# NOTE: to build shared libraries, LIBNAME, STLIBNAME, SHLIBNAME and
	# SHLIBNAME_FULL MUST have values when using this makefile, and in some
	# cases, SHLIBVERSION as well. To build DSOs, SHLIBNAME_FULL MUST have
	# a value, the rest can be left alone.


	# APPNAME contains just the name of the application, without suffix (""
	# on Unix, ".exe" on Windows, ...). This one MUST have a value when using
	# this makefile to build applications.
	# For example, to build foo, you need to do the following:
	#APPNAME=foo
	APPNAME=

	# SRCDIR is the top directory of the source tree.
	SRCDIR=.

	# OBJECTS contains all the object files to link together into the application.
	# This must contain at least one object file.
	#OBJECTS=foo.o
	OBJECTS=

	# LIBEXTRAS contains extra modules to link together with the library.
	# For example, if a second library, say libbar.a needs to be linked into
	# libfoo.so, you need to do the following:
	#LIBEXTRAS=libbar.a
	# Note that this MUST be used when using the link_dso targets, to hold the
	# names of all object files that go into the target shared object.
	LIBEXTRAS=

	# LIBDEPS contains all the flags necessary to cover all necessary
	# dependencies to other libraries.
	LIBDEPS=

	#------------------------------------------------------------------------------
	# The rest is private to this makefile.

	SET_X=:
	#SET_X=set -x

	top:
	echo "Trying to use this makefile interactively? Don't." ; exit 1

	LINK_APP= \
	( $(SET_X); \
	LIBDEPS="$${LIBDEPS:-$(LIBDEPS)}"; \
	LDCMD="$${LDCMD:-$(CC)}"; LDFLAGS="$${LDFLAGS:-$(CFLAGS) $(LDFLAGS)}"; \
	LIBPATH=`for x in $$LIBDEPS; do echo $$x; done \| sed -e 's/^ *-L//;t' -e d \| uniq`; \
	LIBPATH=`echo $$LIBPATH \| sed -e 's/ /:/g'`; \
	$(ECHO) LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
	$${LDCMD} $${LDFLAGS} -o $${APPNAME:=$(APPNAME)} $(OBJECTS) $${LIBDEPS}; \
	LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
	$${LDCMD} $${LDFLAGS} -o $${APPNAME:=$(APPNAME)} $(OBJECTS) $${LIBDEPS} )

	LINK_SO= \
	( $(SET_X); \
	LIBDEPS="$${LIBDEPS:-$(LIBDEPS)}"; \
	SHAREDCMD="$${SHAREDCMD:-$(CC)}"; \
	SHAREDFLAGS="$${SHAREDFLAGS:-$(CFLAGS) $(SHARED_LDFLAGS)}"; \
	LIBPATH=`for x in $$LIBDEPS; do echo $$x; done \| sed -e 's/^ *-L//;t' -e d \| uniq`; \
	LIBPATH=`echo $$LIBPATH \| sed -e 's/ /:/g'`; \
	$(ECHO) LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
	$${SHAREDCMD} $${SHAREDFLAGS} \
	-o $(SHLIBNAME_FULL) \
	$$ALLSYMSFLAGS $$SHOBJECTS $$NOALLSYMSFLAGS $$LIBDEPS; \
	LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
	$${SHAREDCMD} $${SHAREDFLAGS} \
	-o $(SHLIBNAME_FULL) \
	$$ALLSYMSFLAGS $$SHOBJECTS $$NOALLSYMSFLAGS $$LIBDEPS \
	) && $(SYMLINK_SO)

	SYMLINK_SO= \
	if [ -n "$$INHIBIT_SYMLINKS" ]; then :; else \
	if [ -n "$(SHLIBNAME_FULL)" -a -n "$(SHLIBNAME)" -a \
	"$(SHLIBNAME_FULL)" != "$(SHLIBNAME)" ]; then \
	( $(SET_X); \
	rm -f $(SHLIBNAME); \
	ln -s $(SHLIBNAME_FULL) $(SHLIBNAME) ); \
	fi; \
	fi

	LINK_SO_SHLIB= SHOBJECTS="$(STLIBNAME) $(LIBEXTRAS)"; $(LINK_SO)
	LINK_SO_DSO= INHIBIT_SYMLINKS=yes; SHOBJECTS="$(LIBEXTRAS)"; $(LINK_SO)

	LINK_SO_SHLIB_VIA_O= \
	SHOBJECTS=$(STLIBNAME).o; \
	ALL=$$ALLSYMSFLAGS; ALLSYMSFLAGS=; NOALLSYMSFLAGS=; \
	( $(ECHO) ld $(LDFLAGS) -r -o $$SHOBJECTS $$ALL $(STLIBNAME) $(LIBEXTRAS); \
	ld $(LDFLAGS) -r -o $$SHOBJECTS $$ALL $(STLIBNAME) $(LIBEXTRAS) ); \
	$(LINK_SO) && ( $(ECHO) rm -f $$SHOBJECTS; rm -f $$SHOBJECTS )

	LINK_SO_SHLIB_UNPACKED= \
	UNPACKDIR=link_tmp.$$$$; rm -rf $$UNPACKDIR; mkdir $$UNPACKDIR; \
	(cd $$UNPACKDIR; ar x ../$(STLIBNAME)) && \
	([ -z "$(LIBEXTRAS)" ] \|\| cp $(LIBEXTRAS) $$UNPACKDIR) && \
	SHOBJECTS=$$UNPACKDIR/*.o; \
	$(LINK_SO) && rm -rf $$UNPACKDIR

	DETECT_GNU_LD=($(CC) -Wl,-V /dev/null 2>&1 \| grep '^GNU ld' )>/dev/null

	DO_GNU_SO_COMMON=\
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-Bsymbolic -Wl,-soname=$(SHLIBNAME_FULL)"
	DO_GNU_DSO=\
	$(DO_GNU_SO_COMMON)
	DO_GNU_SO=\
	ALLSYMSFLAGS='-Wl,--whole-archive'; \
	NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
	$(DO_GNU_SO_COMMON)
	DO_GNU_APP=LDFLAGS="$(CFLAGS) $(LDFLAGS)"

	#This is rather special. It's a special target with which one can link
	#applications without bothering with any features that have anything to
	#do with shared libraries, for example when linking against static
	#libraries. It's mostly here to avoid a lot of conditionals everywhere
	#else...
	link_app.:
	$(LINK_APP)

	link_dso.gnu:
	@ $(DO_GNU_DSO); $(LINK_SO_DSO)
	link_shlib.gnu:
	@ $(DO_GNU_SO); $(LINK_SO_SHLIB)
	link_app.gnu:
	@ $(DO_GNU_APP); $(LINK_APP)

	link_shlib.linux-shared:
	@$(PERL) $(SRCDIR)/util/mkdef.pl $(LIBNAME) linux >$(LIBNAME).map; \
	$(DO_GNU_SO); \
	ALLSYMSFLAGS='-Wl,--whole-archive,--version-script=$(LIBNAME).map'; \
	$(LINK_SO_SHLIB)

	link_dso.bsd:
	@if $(DETECT_GNU_LD); then $(DO_GNU_DSO); else \
	LIBDEPS=" "; \
	ALLSYMSFLAGS=; \
	NOALLSYMSFLAGS=; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -nostdlib"; \
	fi; $(LINK_SO_DSO)
	link_shlib.bsd:
	@if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
	LIBDEPS=" "; \
	ALLSYMSFLAGS="-Wl,-Bforcearchive"; \
	NOALLSYMSFLAGS=; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -nostdlib"; \
	fi; $(LINK_SO_SHLIB)
	link_app.bsd:
	@if $(DETECT_GNU_LD); then $(DO_GNU_APP); else \
	LDFLAGS="$(CFLAGS) $(LDFLAGS)"; \
	fi; $(LINK_APP)

	# For Darwin AKA Mac OS/X (dyld)
	# Originally link_dso.darwin produced .so, because it was hard-coded
	# in dso_dlfcn module. At later point dso_dlfcn switched to .dylib
	# extension in order to allow for run-time linking with vendor-
	# supplied shared libraries such as libz, so that link_dso.darwin had
	# to be harmonized with it. This caused minor controversy, because
	# it was believed that dlopen can't be used to dynamically load
	# .dylib-s, only so called bundle modules (ones linked with -bundle
	# flag). The belief seems to be originating from pre-10.4 release,
	# where dlfcn functionality was emulated by dlcompat add-on. In
	# 10.4 dlopen was rewritten as native part of dyld and is documented
	# to be capable of loading both dynamic libraries and bundles. In
	# order to provide compatibility with pre-10.4 dlopen, modules are
	# linked with -bundle flag, which makes .dylib extension misleading.
	# It works, because dlopen is [and always was] extension-agnostic.
	# Alternative to this heuristic approach is to develop specific
	# MacOS X dso module relying on whichever "native" dyld interface.
	link_dso.darwin:
	@ ALLSYMSFLAGS=''; \
	NOALLSYMSFLAGS=''; \
	SHAREDFLAGS="$(CFLAGS) `echo $(SHARED_LDFLAGS) \| sed s/dynamiclib/bundle/`"; \
	$(LINK_SO_DSO)
	link_shlib.darwin:
	@ ALLSYMSFLAGS='-all_load'; \
	NOALLSYMSFLAGS=''; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -current_version $(SHLIBVERSION) -compatibility_version $(SHLIBVERSION) -install_name $(INSTALLTOP)/$(LIBDIR)/$(SHLIBNAME_FULL)"; \
	$(LINK_SO_SHLIB)
	link_app.darwin: # is there run-path on darwin?
	$(LINK_APP)

	link_dso.cygwin:
	@ALLSYMSFLAGS=''; \
	NOALLSYMSFLAGS=''; \
	base=-Wl,--enable-auto-image-base; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared $$base -Wl,-Bsymbolic"; \
	$(LINK_SO_DSO)
	link_shlib.cygwin:
	@ INHIBIT_SYMLINKS=yes; \
	$(ECHO) "$(PERL) $(SRCDIR)/util/mkrc.pl $(SHLIBNAME_FULL) \|" \
	"$(RC) $(SHARED_RCFLAGS) -o rc.o"; \
	$(PERL) $(SRCDIR)/util/mkrc.pl $(SHLIBNAME_FULL) \| \
	$(RC) $(SHARED_RCFLAGS) -o rc.o; \
	ALLSYMSFLAGS='-Wl,--whole-archive'; \
	NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,--enable-auto-image-base -Wl,-Bsymbolic -Wl,--out-implib,$(SHLIBNAME) rc.o"; \
	$(LINK_SO_SHLIB) \|\| exit 1; \
	rm rc.o
	link_app.cygwin:
	$(LINK_APP)

	# link_dso.mingw-shared and link_app.mingw-shared are mapped to the
	# corresponding cygwin targets, as they do the exact same thing.
	link_shlib.mingw:
	@ INHIBIT_SYMLINKS=yes; \
	$(PERL) $(SRCDIR)/util/mkdef.pl 32 $(LIBNAME) \
	\| sed -e 's\|^\(LIBRARY *\)$(LIBNAME)32\|\1$(SHLIBNAME_FULL)\|' \
	> $(LIBNAME).def; \
	echo "$(PERL) $(SRCDIR)/util/mkrc.pl $(SHLIBNAME_FULL) \|" \
	"$(RC) $(SHARED_RCFLAGS) -o rc.o"; \
	$(PERL) $(SRCDIR)/util/mkrc.pl $(SHLIBNAME_FULL) \| \
	$(RC) $(SHARED_RCFLAGS) -o rc.o; \
	ALLSYMSFLAGS='-Wl,--whole-archive'; \
	NOALLSYMSFLAGS='-Wl,--no-whole-archive'; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-Bsymbolic -Wl,--out-implib,$(SHLIBNAME) $(LIBNAME).def rc.o"; \
	$(LINK_SO_SHLIB) \|\| exit 1; \
	rm $(LIBNAME).def rc.o

	link_dso.alpha-osf1:
	@ if $(DETECT_GNU_LD); then \
	$(DO_GNU_DSO); \
	else \
	ALLSYMSFLAGS=''; \
	NOALLSYMSFLAGS=''; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-B,symbolic"; \
	fi; \
	$(LINK_SO_DSO)
	link_shlib.alpha-osf1:
	@ if $(DETECT_GNU_LD); then \
	$(DO_GNU_SO); \
	else \
	ALLSYMSFLAGS='-all'; \
	NOALLSYMSFLAGS='-none'; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-B,symbolic -set_version $(SHLIBVERSION)"; \
	fi; \
	$(LINK_SO_SHLIB)
	link_app.alpha-osf1:
	@if $(DETECT_GNU_LD); then \
	$(DO_GNU_APP); \
	else \
	LDFLAGS="$(CFLAGS) $(LDFLAGS)"; \
	fi; \
	$(LINK_APP)

	link_dso.solaris:
	@ if $(DETECT_GNU_LD); then \
	$(DO_GNU_DSO); \
	else \
	ALLSYMSFLAGS=""; \
	NOALLSYMSFLAGS=""; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -h $(SHLIBNAME_FULL) -Wl,-Bsymbolic"; \
	fi; \
	$(LINK_SO_DSO)
	link_shlib.solaris:
	@ if $(DETECT_GNU_LD); then \
	$(DO_GNU_SO); \
	else \
	$(PERL) $(SRCDIR)/util/mkdef.pl $(LIBNAME) linux >$(LIBNAME).map; \
	ALLSYMSFLAGS="-Wl,-z,allextract,-M,$(LIBNAME).map"; \
	NOALLSYMSFLAGS="-Wl,-z,defaultextract"; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -h $(SHLIBNAME_FULL) -Wl,-Bsymbolic"; \
	fi; \
	$(LINK_SO_SHLIB)
	link_app.solaris:
	@ if $(DETECT_GNU_LD); then \
	$(DO_GNU_APP); \
	else \
	LDFLAGS="$(CFLAGS) $(LDFLAGS)"; \
	fi; \
	$(LINK_APP)

	# OpenServer 5 native compilers used
	link_dso.svr3:
	@ if $(DETECT_GNU_LD); then \
	$(DO_GNU_DSO); \
	else \
	ALLSYMSFLAGS=''; \
	NOALLSYMSFLAGS=''; \
	SHAREDFLAGS="$(CFLAGS) -G -h $(SHLIBNAME_FULL)"; \
	fi; \
	$(LINK_SO_DSO)
	link_shlib.svr3:
	@ if $(DETECT_GNU_LD); then \
	$(DO_GNU_SO); \
	else \
	ALLSYMSFLAGS=''; \
	NOALLSYMSFLAGS=''; \
	SHAREDFLAGS="$(CFLAGS) -G -h $(SHLIBNAME_FULL)"; \
	fi; \
	$(LINK_SO_SHLIB_UNPACKED)
	link_app.svr3:
	@$(DETECT_GNU_LD) && $(DO_GNU_APP); \
	$(LINK_APP)

	# UnixWare 7 and OpenUNIX 8 native compilers used
	link_dso.svr5:
	@ if $(DETECT_GNU_LD); then \
	$(DO_GNU_DSO); \
	else \
	SHARE_FLAG='-G'; \
	($(CC) -v 2>&1 \| grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
	ALLSYMSFLAGS=''; \
	NOALLSYMSFLAGS=''; \
	SHAREDFLAGS="$(CFLAGS) $${SHARE_FLAG} -h $(SHLIBNAME_FULL)"; \
	fi; \
	$(LINK_SO_DSO)
	link_shlib.svr5:
	@ if $(DETECT_GNU_LD); then \
	$(DO_GNU_SO); \
	else \
	SHARE_FLAG='-G'; \
	($(CC) -v 2>&1 \| grep gcc) > /dev/null && SHARE_FLAG='-shared'; \
	ALLSYMSFLAGS=''; \
	NOALLSYMSFLAGS=''; \
	SHAREDFLAGS="$(CFLAGS) $${SHARE_FLAG} -h $(SHLIBNAME_FULL)"; \
	fi; \
	$(LINK_SO_SHLIB_UNPACKED)
	link_app.svr5:
	@$(DETECT_GNU_LD) && $(DO_GNU_APP); \
	$(LINK_APP)

	link_dso.irix:
	@ if $(DETECT_GNU_LD); then \
	$(DO_GNU_DSO); \
	else \
	ALLSYMSFLAGS=""; \
	NOALLSYMSFLAGS=""; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-soname,$(SHLIBNAME_FULL),-B,symbolic"; \
	fi; \
	$(LINK_SO_DSO)
	link_shlib.irix:
	@ if $(DETECT_GNU_LD); then \
	$(DO_GNU_SO); \
	else \
	MINUSWL=""; \
	($(CC) -v 2>&1 \| grep gcc) > /dev/null && MINUSWL="-Wl,"; \
	ALLSYMSFLAGS="$${MINUSWL}-all"; \
	NOALLSYMSFLAGS="$${MINUSWL}-none"; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -shared -Wl,-soname,$(SHLIBNAME_FULL),-B,symbolic"; \
	fi; \
	$(LINK_SO_SHLIB)
	link_app.irix:
	@LDFLAGS="$(CFLAGS) $(LDFLAGS)"; \
	$(LINK_APP)

	# 32-bit PA-RISC HP-UX embeds the -L pathname of libs we link with, so
	# we compensate for it with +cdp ../: and +cdp ./:. Yes, these rewrite
	# rules imply that we can only link one level down in catalog structure,
	# but that's what takes place for the moment of this writing. +cdp option
	# was introduced in HP-UX 11.x and applies in 32-bit PA-RISC link
	# editor context only [it's simply ignored in other cases, which are all
	# ELFs by the way].
	#
	link_dso.hpux:
	@if $(DETECT_GNU_LD); then $(DO_GNU_DSO); else \
	ALLSYMSFLAGS=''; \
	NOALLSYMSFLAGS=''; \
	expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+h,$(SHLIBNAME_FULL),+cdp,../:,+cdp,./:"; \
	fi; \
	rm -f $(SHLIBNAME_FULL) \|\| :; \
	$(LINK_SO_DSO) && chmod a=rx $(SHLIBNAME_FULL)
	link_shlib.hpux:
	@if $(DETECT_GNU_LD); then $(DO_GNU_SO); else \
	ALLSYMSFLAGS='-Wl,-Fl'; \
	NOALLSYMSFLAGS=''; \
	expr $(PLATFORM) : 'hpux64' > /dev/null && ALLSYMSFLAGS='-Wl,+forceload'; \
	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+h,$(SHLIBNAME_FULL),+cdp,../:,+cdp,./:"; \
	fi; \
	rm -f $(SHLIBNAME_FULL) \|\| :; \
	$(LINK_SO_SHLIB) && chmod a=rx $(SHLIBNAME_FULL)
	link_app.hpux:
	@if $(DETECT_GNU_LD); then $(DO_GNU_APP); else \
	LDFLAGS="$(CFLAGS) $(LDFLAGS) -Wl,+s,+cdp,../:,+cdp,./:"; \
	fi; \
	$(LINK_APP)

	link_dso.aix:
	@OBJECT_MODE=`expr "x$(SHARED_LDFLAGS)" : 'x\-[a-z]*\(64\)'` \|\| :; \
	OBJECT_MODE=$${OBJECT_MODE:-32}; export OBJECT_MODE; \
	ALLSYMSFLAGS=''; \
	NOALLSYMSFLAGS=''; \
	SHAREDFLAGS='$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-bexpall,-bnolibpath,-bM:SRE'; \
	rm -f $(SHLIBNAME_FULL) 2>&1 > /dev/null ; \
	$(LINK_SO_DSO);
	link_shlib.aix:
	@ OBJECT_MODE=`expr "x$(SHARED_LDFLAGS)" : 'x\-[a-z]*\(64\)'` \|\| : ; \
	OBJECT_MODE=$${OBJECT_MODE:-32}; export OBJECT_MODE; \
	ALLSYMSFLAGS='-bnogc'; \
	NOALLSYMSFLAGS=''; \
	SHAREDFLAGS='$(CFLAGS) $(SHARED_LDFLAGS) -Wl,-bexpall,-bnolibpath,-bM:SRE'; \
	rm -f $(SHLIBNAME_FULL) 2>&1 > /dev/null ; \
	$(LINK_SO_SHLIB_VIA_O)
	link_app.aix:
	LDFLAGS="$(CFLAGS) -Wl,-bsvr4 $(LDFLAGS)"; \
	$(LINK_APP)


	# Targets to build symbolic links when needed
	symlink.gnu symlink.solaris symlink.svr3 symlink.svr5 symlink.irix \
	symlink.aix:
	@ $(SYMLINK_SO)
	symlink.darwin:
	@ $(SYMLINK_SO)
	symlink.hpux:
	@ $(SYMLINK_SO)
	# The following lines means those specific architectures do no symlinks
	symlink.cygwin symlink.alpha-osf1 symlink.tru64 symlink.tru64-rpath:

	# Compatibility targets
	link_dso.bsd-gcc-shared link_dso.linux-shared link_dso.gnu-shared: link_dso.gnu
	link_shlib.bsd-gcc-shared: link_shlib.linux-shared
	link_shlib.gnu-shared: link_shlib.gnu
	link_app.bsd-gcc-shared link_app.linux-shared link_app.gnu-shared: link_app.gnu
	symlink.bsd-gcc-shared symlink.bsd-shared symlink.linux-shared symlink.gnu-shared: symlink.gnu
	link_dso.bsd-shared: link_dso.bsd
	link_shlib.bsd-shared: link_shlib.bsd
	link_app.bsd-shared: link_app.bsd
	link_dso.darwin-shared: link_dso.darwin
	link_shlib.darwin-shared: link_shlib.darwin
	link_app.darwin-shared: link_app.darwin
	symlink.darwin-shared: symlink.darwin
	link_dso.cygwin-shared: link_dso.cygwin
	link_shlib.cygwin-shared: link_shlib.cygwin
	link_app.cygwin-shared: link_app.cygwin
	symlink.cygwin-shared: symlink.cygwin
	link_dso.mingw-shared: link_dso.cygwin
	link_shlib.mingw-shared: link_shlib.mingw
	link_app.mingw-shared: link_app.cygwin
	symlink.mingw-shared: symlink.cygwin
	link_dso.alpha-osf1-shared: link_dso.alpha-osf1
	link_shlib.alpha-osf1-shared: link_shlib.alpha-osf1
	link_app.alpha-osf1-shared: link_app.alpha-osf1
	symlink.alpha-osf1-shared: symlink.alpha-osf1
	link_dso.tru64-shared: link_dso.tru64
	link_shlib.tru64-shared: link_shlib.tru64
	link_app.tru64-shared: link_app.tru64
	symlink.tru64-shared: symlink.tru64
	link_dso.tru64-shared-rpath: link_dso.tru64-rpath
	link_shlib.tru64-shared-rpath: link_shlib.tru64-rpath
	link_app.tru64-shared-rpath: link_app.tru64-rpath
	symlink.tru64-shared-rpath: symlink.tru64-rpath
	link_dso.solaris-shared: link_dso.solaris
	link_shlib.solaris-shared: link_shlib.solaris
	link_app.solaris-shared: link_app.solaris
	symlink.solaris-shared: symlink.solaris
	link_dso.svr3-shared: link_dso.svr3
	link_shlib.svr3-shared: link_shlib.svr3
	link_app.svr3-shared: link_app.svr3
	symlink.svr3-shared: symlink.svr3
	link_dso.svr5-shared: link_dso.svr5
	link_shlib.svr5-shared: link_shlib.svr5
	link_app.svr5-shared: link_app.svr5
	symlink.svr5-shared: symlink.svr5
	link_dso.irix-shared: link_dso.irix
	link_shlib.irix-shared: link_shlib.irix
	link_app.irix-shared: link_app.irix
	symlink.irix-shared: symlink.irix
	link_dso.hpux-shared: link_dso.hpux
	link_shlib.hpux-shared: link_shlib.hpux
	link_app.hpux-shared: link_app.hpux
	symlink.hpux-shared: symlink.hpux
	link_dso.aix-shared: link_dso.aix
	link_shlib.aix-shared: link_shlib.aix
	link_app.aix-shared: link_app.aix
	symlink.aix-shared: symlink.aix