[PATCH] libnsl: Do not install libnsl.so, libnsl.a if NIS is disabled [BZ #22701]

[Florian Weimer]

This also skips building the .o files for libnsl.a.

2018-01-11  Florian Weimer  <fweimer@redhat.com>

	* nis/Makefile (install-lib-ldscripts, $(inst_libdir)/libnsl.so):
	Prevent installation of libnsl.so.
	(libnsl-inhibit-o): Do not build (or install) static libraries.

diff --git a/nis/Makefile b/nis/Makefile
index b828c5ec4d..702c31eb63 100644
--- a/nis/Makefile
+++ b/nis/Makefile
@@ -69,7 +69,15 @@ 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))
-endif
+
+else # not $(build-obsolete-nsl)
+# Pretend that libnsl.so is a linker script, so that the symbolic link
+# is not installed.
+install-lib-ldscripts = libnsl.so
+$(inst_libdir)/libnsl.so:
+libnsl-inhibit-o = .o # Build no static libnsl.a.
+
+endif # not $(build-obsolete-nsl)
 
 include ../Rules