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, 0 insertions, 9 deletions

diff --git a/INSTALL b/INSTALL
index 62e78725f5..3f5575e23e 100644
--- a/INSTALL
+++ b/INSTALL
@@ -227,15 +227,6 @@ if 'CFLAGS' is specified it must enable optimization.  For example:
           colon-separated list in a single environment variable
           'GLIBC_TUNABLES'.
 
-'--enable-obsolete-nsl'
-     By default, libnsl is only built as shared library for backward
-     compatibility and the NSS modules libnss_compat, libnss_nis and
-     libnss_nisplus are not built at all.  Use this option to enable
-     libnsl with all depending NSS modules and header files.  For
-     architectures and ABIs that have been added after version 2.28 of
-     the GNU C Library this option is not available, and the libnsl
-     compatibility library is not built.
-
 '--disable-crypt'
      Do not install the passphrase-hashing library 'libcrypt' or the
      header file 'crypt.h'.  'unistd.h' will still declare the function