#
# Set up some defaults.
#
LIB_LINK_OPT=libopt
STLIBEXT=.a
# Default to being unable to build shared libraries.
SHLIBEXT=.so-nobuild
SHLIBVEXT=.so.v-nobuild
SHLIBSEXT=.so.s-nobuild
# Most systems support profiled libraries.
PFLIBEXT=_p.a
# Most systems install shared libs as mode 644, etc. while hpux wants 755
INSTALL_SHLIB='$(INSTALL_DATA)'

STOBJEXT=.o
SHOBJEXT=.so
PFOBJEXT=.po
# Default for systems w/o shared libraries
CC_LINK_STATIC='$(CC) $(PROG_LIBPATH)'

# Set up architecture-specific variables.
case $krb5_cv_host in
alpha*-dec-osf*)
	SHLIBVEXT='.so.$(LIBMAJOR).$(LIBMINOR)'
	SHLIBSEXT='.so.$(LIBMAJOR)'
	SHLIBEXT=.so
	# Alpha OSF/1 doesn't need separate PIC objects
	SHOBJEXT=.o
	LDCOMBINE='ld -shared -expect_unresolved \* -update_registry $(BUILDTOP)/so_locations -soname lib$(LIB)$(SHLIBSEXT)'
	SHLIB_EXPFLAGS='-rpath $(SHLIB_RDIRS) $(SHLIB_DIRS) $(SHLIB_EXPLIBS)'
	PROFFLAGS=-pg
	CC_LINK_SHARED='$(CC) $(PROG_LIBPATH) -Wl,-rpath -Wl,$(PROG_RPATH)'
	# Need -oldstyle_liblookup to avoid picking up shared libs from
	# other builds.  OSF/1 / Tru64 ld programs look through the entire
	# library path for shared libs prior to looking through the
	# entire library path for static libs.
	CC_LINK_STATIC='$(CC) $(PROG_LIBPATH) -Wl,-oldstyle_liblookup'
	# $(PROG_RPATH) is here to handle things like a shared tcl library
	RUN_ENV='LD_LIBRARY_PATH=`echo $(PROG_LIBPATH) | sed -e "s/-L//g" -e "s/ /:/g"`:$(PROG_RPATH):/usr/shlib:/usr/ccs/lib:/usr/lib/cmplrs/cc:/usr/lib:/usr/local/lib; export LD_LIBRARY_PATH; _RLD_ROOT=/dev/dummy/d; export _RLD_ROOT;'
	;;

# HPUX *seems* to work under 10.20.
# 
# Note: "-Wl,+s" when building executables enables the use of the
# SHLIB_PATH environment variable for finding shared libraries 
# in non-standard directories.  If a non-standard search-path for
#  shared libraries is compiled into the executable (using 
# -Wl,+b,$KRB5_SHLIBDIR), then the order of "-Wl,+b,..." and "-Wl,+s" 
# on the commandline of the linker will determine which path
# (compiled-in or SHLIB_PATH) will be searched first.
#
*-*-hpux*)
	PICFLAGS=+z
	INSTALL_SHLIB='$(INSTALL)'
	SHLIBEXT=.sl
	SHLIBVEXT='.$(LIBMAJOR).$(LIBMINOR)'
	SHLIBSEXT='.$(LIBMAJOR)'
	SHLIB_EXPFLAGS='+s +b $(SHLIB_RDIRS) $(SHLIB_DIRS) $(SHLIB_EXPLIBS)'
	LDCOMBINE='ld -b +h lib$(LIB)$(SHLIBSEXT)'
	CC_LINK_SHARED='$(CC) $(PROG_LIBPATH) -Wl,+s -Wl,+b,$(PROG_RPATH)'
	CC_LINK_STATIC='$(CC) $(PROG_LIBPATH)'
	RUN_ENV='SHLIB_PATH=`echo $(PROG_LIBPATH) | sed -e "s/-L//g" -e "s/ /:/g"`; export SHLIB_PATH;'
	;;

mips-sgi-irix6.3)	# This is a Kludge; see below
	SHLIBVEXT='.so.$(LIBMAJOR).$(LIBMINOR)'
	SHLIBSEXT='.so.$(LIBMAJOR)'
	SHLIBEXT=.so
	SHOBJEXT=.o
	# Kludge follows: (gcc makes n32 object files but ld expects o32, so we reeducate ld)
	if test "$krb5_cv_prog_gcc" = yes; then
		LDCOMBINE='ld -n32 -shared -ignore_unresolved -update_registry $(BUILDTOP)/so_locations -soname lib$(LIB)$(SHLIBSEXT)'
	else
		LDCOMBINE='ld -shared -ignore_unresolved -update_registry $(BUILDTOP)/so_locations -soname lib$(LIB)$(SHLIBSEXT)'
	fi
	SHLIB_EXPFLAGS='-rpath $(SHLIB_RDIRS) $(SHLIB_DIRS) $(SHLIB_EXPLIBS)'
	# no gprof for Irix...
	PROFFLAGS=-p
	CC_LINK_SHARED='$(CC) $(PROG_LIBPATH) -Wl,-rpath -Wl,$(PROG_RPATH)'
	CC_LINK_STATIC='$(CC) $(PROG_LIBPATH)'
	RUN_ENV='LD_LIBRARY_PATH=`echo $(PROG_LIBPATH) | sed -e "s/-L//g" -e "s/ /:/g"`; export LD_LIBRARY_PATH;'
	;;

mips-sgi-irix*)
	SHLIBVEXT='.so.$(LIBMAJOR).$(LIBMINOR)'
	SHLIBSEXT='.so.$(LIBMAJOR)'
	SHLIBEXT=.so
	SHOBJEXT=.o
	LDCOMBINE='ld -shared -ignore_unresolved -update_registry $(BUILDTOP)/so_locations -soname lib$(LIB)$(SHLIBSEXT)'
	SHLIB_EXPFLAGS='-rpath $(SHLIB_RDIRS) $(SHLIB_DIRS) $(SHLIB_EXPLIBS)'
	# no gprof for Irix...
	PROFFLAGS=-p
	CC_LINK_SHARED='$(CC) $(PROG_LIBPATH) -Wl,-rpath -Wl,$(PROG_RPATH)'
	CC_LINK_STATIC='$(CC) $(PROG_LIBPATH)'
	RUN_ENV='LD_LIBRARY_PATH=`echo $(PROG_LIBPATH) | sed -e "s/-L//g" -e "s/ /:/g"`; export LD_LIBRARY_PATH;'
	;;

# untested...
mips-sni-sysv4)
	if test "$krb5_cv_prog_gcc" = yes; then
		PICFLAGS=-fpic
		LDCOMBINE='$(CC) -G -Wl,-h -Wl,lib$(LIB)$(SHLIBSEXT)'
	else
		PICFLAGS=-Kpic
		LDCOMBINE='$(CC) -G -h lib$(LIB)$(SHLIBSEXT)'
	fi
	SHLIB_EXPFLAGS='-R$(SHLIB_RDIRS) $(SHLIB_DIRS) $(SHLIB_EXPLIBS)'
	SHLIBEXT=.so
	SHLIBVEXT='.so.$(LIBMAJOR).$(LIBMINOR)'
	SHLIBSEXT='.so.$(LIBMAJOR)'
	CC_LINK_SHARED='$(CC) $(PROG_LIBPATH) -R$(PROG_RPATH)'
	CC_LINK_STATIC='$(CC) $(PROG_LIBPATH)'
	RUN_ENV='LD_LIBRARY_PATH=`echo $(PROG_LIBPATH) | sed -e "s/-L//g" -e "s/ /:/g"`; export LD_LIBRARY_PATH;'
	PROFFLAGS=-pg
	;;

mips-*-netbsd*)
	PICFLAGS=-fPIC
	SHLIBVEXT='.so.$(LIBMAJOR).$(LIBMINOR)'
	SHLIBSEXT='.so.$(LIBMAJOR)'
	SHLIBEXT=.so
	LDCOMBINE='ld -shared -soname lib$(LIB)$(SHLIBSEXT)'
	SHLIB_EXPFLAGS='-R$(SHLIB_RDIRS) $(SHLIB_DIRS) $(SHLIB_EXPLIBS)'
	CC_LINK_SHARED='$(CC) $(PROG_LIBPATH) -Wl,-rpath -Wl,$(PROG_RPATH)'
	CC_LINK_STATIC='$(CC) $(PROG_LIBPATH)'
	RUN_ENV='LD_LIBRARY_PATH=`echo $(PROG_LIBPATH) | sed -e "s/-L//g" -e "s/ /:/g"`; export LD_LIBRARY_PATH;'
	PROFFLAGS=-pg
	;;

*-*-netbsd*)
	PICFLAGS=-fpic
	SHLIBVEXT='.so.$(LIBMAJOR).$(LIBMINOR)'
	SHLIBEXT=.so
	LDCOMBINE='ld -Bshareable'
	SHLIB_EXPFLAGS='-R$(SHLIB_RDIRS) $(SHLIB_DIRS) $(SHLIB_EXPLIBS)'
	CC_LINK_SHARED='$(CC) $(PROG_LIBPATH) -R$(PROG_RPATH)'
	CC_LINK_STATIC='$(CC) $(PROG_LIBPATH)'
	RUN_ENV='LD_LIBRARY_PATH=`echo $(PROG_LIBPATH) | sed -e "s/-L//g" -e "s/ /:/g"`; export LD_LIBRARY_PATH;'
	PROFFLAGS=-pg
	;;

*-*-freebsd*)
	if test -x /usr/bin/objformat ; then
		objformat=`/usr/bin/objformat`
	else
		objformat="aout"
	fi
	PICFLAGS=-fpic
	if test "x$objformat" = "xelf" ; then
		SHLIBVEXT='.so.$(LIBMAJOR)'
		CC_LINK_SHARED='$(CC) $(PROG_LIBPATH) -Wl,-rpath -Wl,$(PROG_RPATH)'
	else
		SHLIBVEXT='.so.$(LIBMAJOR).$(LIBMINOR)'
		CC_LINK_SHARED='$(CC) $(PROG_LIBPATH) -R$(PROG_RPATH)'
	fi
	SHLIBEXT=.so
	LDCOMBINE='ld -Bshareable'
	SHLIB_EXPFLAGS='-R$(SHLIB_RDIRS) $(SHLIB_DIRS) $(SHLIB_EXPLIBS)'
	CC_LINK_STATIC='$(CC) $(PROG_LIBPATH)'
	RUN_ENV='LD_LIBRARY_PATH=`echo $(PROG_LIBPATH) | sed -e "s/-L//g" -e "s/ /:/g"`; export LD_LIBRARY_PATH;'
	PROFFLAGS=-pg
	;;

*-*-openbsd*)
	PICFLAGS=-fpic
	SHLIBVEXT='.so.$(LIBMAJOR).$(LIBMINOR)'
	SHLIBEXT=.so
	LDCOMBINE='ld -Bshareable'
	SHLIB_EXPFLAGS='-R$(SHLIB_RDIRS) $(SHLIB_DIRS) $(SHLIB_EXPLIBS)'
	CC_LINK_SHARED='$(CC) $(PROG_LIBPATH) -R$(PROG_RPATH)'
	CC_LINK_STATIC='$(CC) $(PROG_LIBPATH)'
	RUN_ENV='LD_LIBRARY_PATH=`echo $(PROG_LIBPATH) | sed -e "s/-L//g" -e "s/ /:/g"`; export LD_LIBRARY_PATH;'
	PROFFLAGS=-pg
	;;

*-*-darwin* | *-*-rhapsody*)
	PICFLAGS=-fno-common
	SHLIBVEXT='.$(LIBMAJOR).$(LIBMINOR).dylib'
	SHLIBSEXT='.$(LIBMAJOR).dylib'
	SHLIB_EXPFLAGS='$(SHLIB_DIRS) $(SHLIB_EXPLIBS)'
	SHLIBEXT=.dylib
	LDCOMBINE='$(CC) $(LDFLAGS) -undefined warning -dynamiclib -compatibility_version $(LIBMAJOR) -current_version $(LIBMAJOR).$(LIBMINOR) -install_name "$(KRB5_LIBDIR)/lib$(LIB)$(SHLIBVEXT)"'
	CC_LINK_SHARED='$(CC) $(LDFLAGS) $(PROG_LIBPATH) -dynamic'
	CC_LINK_STATIC='$(CC) $(LDFLAGS) $(PROG_LIBPATH)'
	RUN_ENV='DYLD_LIBRARY_PATH=`echo $(PROG_LIBPATH) | sed -e "s/-L//g" -e "s/ /:/g"`; export DYLD_LIBRARY_PATH;'
	LIB_LINK_OPT=frameworkopt
	EXTRA_LIB_TARGETS=all-framework
	EXTRA_LIBLINK_TARGETS=link-framework
	EXTRA_LIBINST_TARGETS=install-framework
	EXTRA_CLEAN_TARGETS=clean-framework
	EXTRA_CLEAN_LINKS=clean-framework-link
	;;

*-*-solaris*)
	if test "$krb5_cv_prog_gcc" = yes; then
		PICFLAGS=-fpic
		LDCOMBINE='$(CC) -shared -h lib$(LIB)$(SHLIBSEXT)'
	else
		PICFLAGS=-Kpic
		# Solaris cc doesn't default to stuffing the SONAME field...
		LDCOMBINE='$(CC) -dy -G -z text -h lib$(LIB)$(SHLIBSEXT)'
	fi
	SHLIBVEXT='.so.$(LIBMAJOR).$(LIBMINOR)'
	SHLIBSEXT='.so.$(LIBMAJOR)'
	SHLIBEXT=.so
	SHLIB_EXPFLAGS='-R$(SHLIB_RDIRS) $(SHLIB_DIRS) $(SHLIB_EXPLIBS)'
	PROFFLAGS=-pg
	CC_LINK_SHARED='$(PURE) $(CC) $(PROG_LIBPATH) -R$(PROG_RPATH)'
	CC_LINK_STATIC='$(PURE) $(CC) $(PROG_LIBPATH)'
	RUN_ENV='LD_LIBRARY_PATH=`echo $(PROG_LIBPATH) | sed -e "s/-L//g" -e "s/ /:/g"`; export LD_LIBRARY_PATH;'
	;;

*-*-sunos*)
	PICFLAGS=-fpic
	SHLIBVEXT='.so.$(LIBMAJOR).$(LIBMINOR)'
	SHLIBEXT=.so
	# The following grossness is to prevent relative paths from
	# creeping into the RPATH of an executable or library built
	# under SunOS; the explicit setting of LD_LIBRARY_PATH does
	# does not make it into the output file, while directories
	# passed by "-Ldirname" do.
	LDCOMBINE='LD_LIBRARY_PATH=`echo $(SHLIB_DIRS) | sed -e "s/-L//g" -e "s/ /:/g"` ld -dp -assert pure-text'
	SHLIB_EXPFLAGS='-L$(SHLIB_RDIRS) $(SHLIB_EXPLIBS)'
	PROFFLAGS=-pg
	CC_LINK_SHARED='LD_LIBRARY_PATH=`echo $(PROG_LIBPATH) | sed -e "s/-L//g" -e "s/ /:/g"` $(PURE) $(CC) -L$(PROG_RPATH)'
	CC_LINK_STATIC='LD_LIBRARY_PATH=`echo $(PROG_LIBPATH) | sed -e "s/-L//g" -e "s/ /:/g` $(PURE) $(CC)'
	RUN_ENV='LD_LIBRARY_PATH=`echo $(PROG_LIBPATH) | sed -e "s/-L//g" -e "s/ /:/g"`; export LD_LIBRARY_PATH;'
	;;
*-*-linux*)
	PICFLAGS=-fPIC
	SHLIBVEXT='.so.$(LIBMAJOR).$(LIBMINOR)'
	SHLIBSEXT='.so.$(LIBMAJOR)'
	SHLIBEXT=.so
	# Linux ld doesn't default to stuffing the SONAME field...
	# Use objdump -x to examine the fields of the library
	LDCOMBINE='ld -shared -h lib$(LIB)$(SHLIBSEXT)'
	SHLIB_EXPFLAGS='-R$(SHLIB_RDIRS) $(SHLIB_DIRS) $(SHLIB_EXPLIBS)'
	PROFFLAGS=-pg
	CC_LINK_SHARED='$(CC) $(PROG_LIBPATH) -Wl,-rpath -Wl,$(PROG_RPATH)'
	CC_LINK_STATIC='$(CC) $(PROG_LIBPATH)'
	RUN_ENV='LD_LIBRARY_PATH=`echo $(PROG_LIBPATH) | sed -e "s/-L//g" -e "s/ /:/g"`; export LD_LIBRARY_PATH;'
	;;

*-*-aix*)
	SHLIBVEXT='.a.$(LIBMAJOR).$(LIBMINOR)'
	SHLIBEXT=.a
	# AIX doesn't need separate PIC objects
	SHOBJEXT=.o
	LDCOMBINE='$(BUILDTOP)/util/makeshlib $(LIBMAJOR).$(LIBMINOR)'
	SHLIB_EXPFLAGS='  $(SHLIB_DIRS) $(SHLIB_EXPLIBS)'
	PROFFLAGS=-pg
	if test "$krb5_cv_prog_gcc" = "yes" ; then
 	  CC_LINK_SHARED='$(CC) $(PROG_LIBPATH) -Wl,-blibpath:$(PROG_RPATH):/usr/lib:/lib'
	else
	  CC_LINK_SHARED='$(CC) $(PROG_LIBPATH) -blibpath:$(PROG_RPATH):/usr/lib:/lib'
	fi
	CC_LINK_STATIC='$(CC) $(PROG_LIBPATH)'
	# $(PROG_RPATH) is here to handle things like a shared tcl library
	RUN_ENV='LIBPATH=`echo $(PROG_LIBPATH) | sed -e "s/-L//g" -e "s/ /:/g"`:$(PROG_RPATH):/usr/lib:/usr/local/lib; export LIBPATH; '

esac