Remove --enable-obsolete-nsl configure flag

this means that *always* libnsl is only built as shared library for
backward compatibility and the NSS modules libnss_nis and libnss_nisplus
are not built at all, libnsl's headers aren't installed.

This compatibility is kept only for architectures and ABIs that have
been added in or before version 2.28.

Replacement implementations based on TIRPC, which additionally support
IPv6, are available from <https://github.com/thkukuk/>.

This change does not affect libnss_compat which does not depended
on libnsl since 2.27 and thus can be used without NIS.

libnsl code depends on Sun RPC, e.g. on --enable-obsolete-rpc (installed
libnsl headers use installed Sun RPC headers), which will be removed in
the following commit.

1 files changed, 2 insertions, 53 deletions

diff --git a/nis/Makefile b/nis/Makefile
index 9ad5e1db7a..2d3c586890 100644
--- a/nis/Makefile
+++ b/nis/Makefile
@@ -22,40 +22,13 @@ subdir	:= nis
 
 include ../Makeconfig
 
-ifndef have-GLIBC_2.28
-
-ifeq ($(build-obsolete-nsl),yes)
-$(error --enabe-obsolete-nsl is not available)
-endif
-
-else
-
-ifeq ($(build-obsolete-nsl),yes)
-headers			:= $(wildcard rpcsvc/*.[hx])
-
-# These are the databases available for the nis (and perhaps later nisplus)
-# service.  This must be a superset of the services in nss.
-databases		= proto service hosts network grp pwd rpc ethers \
-			  spwd netgrp alias
-
-# Specify rules for the nss_* modules.
-services		:= nis nisplus
-endif
+ifdef have-GLIBC_2.28
 
 extra-libs		= libnsl
-ifeq ($(build-obsolete-nsl),yes)
-extra-libs += $(services:%=libnss_%)
-endif
 # These libraries will be built in the `others' pass rather than
 # the `lib' pass, because they depend on libc.so being built already.
 extra-libs-others	= $(extra-libs)
 
-ifeq ($(build-obsolete-nsl),yes)
-# The sources are found in the appropriate subdir.
-subdir-dirs = $(services:%=nss_%)
-vpath %.c $(subdir-dirs)
-endif
-
 libnsl-routines = yp_xdr ypclnt ypupdate_xdr \
 		  nis_subr nis_local_names nis_free nis_file \
 		  nis_print nis_error nis_call nis_lookup\
@@ -68,17 +41,6 @@ libnsl-routines = yp_xdr ypclnt ypupdate_xdr \
 		  nis_findserv nis_callback nis_clone_dir nis_clone_obj\
 		  nis_clone_res
 
-ifeq ($(build-obsolete-nsl),yes)
-libnsl-routines += nss-default
-libnss_nis-routines	:= $(addprefix nis-,$(databases)) nis-initgroups \
-			   nss-nis
-libnss_nis-inhibit-o	= $(filter-out .os,$(object-suffixes))
-
-libnss_nisplus-routines	:= $(addprefix nisplus-,$(databases)) nisplus-parser \
-			   nss-nisplus nisplus-initgroups
-libnss_nisplus-inhibit-o = $(filter-out .os,$(object-suffixes))
-
-else # not $(build-obsolete-nsl)
 # Pretend that libnsl.so is a linker script, so that the symbolic link
 # is not installed.
 install-lib-ldscripts = libnsl.so
@@ -86,31 +48,18 @@ $(inst_libdir)/libnsl.so:
 # Build only shared libnsl.
 libnsl-inhibit-o = $(filter-out .os,$(object-suffixes))
 
-endif # not $(build-obsolete-nsl)
-
 endif # have-GLIBC_2.28
 
 include ../Rules
 
 
-ifeq ($(build-obsolete-nsl),yes)
-$(objpfx)libnss_nis.so: $(objpfx)libnsl.so$(libnsl.so-version) \
-			$(common-objpfx)nss/libnss_files.so
-$(objpfx)libnss_nisplus.so: $(objpfx)libnsl.so$(libnsl.so-version)
-endif
-
 libnsl-libc = $(common-objpfx)linkobj/libc.so
 # Target-specific variable setting to link objects using deprecated
 # RPC interfaces with the version of libc.so that makes them available
 # for new links:
-$(services:%=$(objpfx)libnss_%.so) $(objpfx)libnsl.so: \
-  libc-for-link = $(libnsl-libc)
+$(objpfx)libnsl.so: libc-for-link = $(libnsl-libc)
 
 
 ifeq ($(build-shared),yes)
 $(others:%=$(objpfx)%): $(objpfx)libnsl.so$(libnsl.so-version)
-else
-ifeq ($(build-obsolete-nsl),yes)
-$(others:%=$(objpfx)%): $(objpfx)libnsl.a
-endif
 endif