Add --disable-build-nscd configure option.

ChangeLog

@@ -1,5 +1,13 @@
 2012-08-22  Roland McGrath  <roland@hack.frob.com>
 
+	* configure.in (build_nscd): New substituted variable, set
+	by --disable-build-nscd and defaults to $use_nscd.
+	* configure: Regenerated.
+	* config.make.in (build-nscd): New substituted variable.
+	* nscd/Makefile (others, others-pie, install-sbin, extra-objs):
+	Change conditional to require [$(build-nscd) = yes] as well.
+	* NEWS: Mention --disable-build-nscd in the --disable-nscd item.
+
 	[BZ# 13696]
 	* configure.in (use_nscd): New substituted variable, set by
 	--disable-nscd.  If enabled, define USE_NSCD.

NEWS

@@ -36,6 +36,8 @@ Version 2.17
 
 * New configure option --disable-nscd builds the C library such that it
   never attempts to contact the Name Service Caching Daemon (nscd).
+  New configure option --disable-build-nscd avoids building nscd itself;
+  this is the default if --disable-nscd is used.
 
 
 Version 2.16

config.make.in

@@ -100,6 +100,7 @@ sysdeps-add-ons = @sysdeps_add_ons@
 cross-compiling = @cross_compiling@
 force-install = @force_install@
 link-obsolete-rpc = @link_obsolete_rpc@
+build-nscd = @build_nscd@
 use-nscd = @use_nscd@
 
 # Build tools.

configure

@@ -655,6 +655,7 @@ multi_arch
 base_machine
 add_on_subdirs
 add_ons
+build_nscd
 link_obsolete_rpc
 libc_cv_nss_crypt
 all_warnings
@@ -751,6 +752,7 @@ enable_multi_arch
 enable_nss_crypt
 enable_obsolete_rpc
 enable_systemtap
+enable_build_nscd
 enable_nscd
 with_cpu
 '
@@ -1410,6 +1412,7 @@ Optional Features:
   --enable-obsolete-rpc   build and install the obsolete RPC code for
                           link-time usage
   --enable-systemtap      enable systemtap static probe points [default=no]
+  --disable-build-nscd    disable building and installing the nscd daemon
   --disable-nscd          library functions will not contact the nscd daemon
 
 Optional Packages:
@@ -3756,6 +3759,15 @@ See \`config.log' for more details" "$LINENO" 5; }
   fi
 fi
 
+# Check whether --enable-build-nscd was given.
+if test "${enable_build_nscd+set}" = set; then :
+  enableval=$enable_build_nscd; build_nscd=$enableval
+else
+  build_nscd=default
+fi
+
+
+
 # Note the use of $use_nscd is near the bottom of the file.
 # Check whether --enable-nscd was given.
 if test "${enable_nscd+set}" = set; then :
@@ -7423,6 +7435,9 @@ if test "x$use_nscd" != xno; then
   $as_echo "#define USE_NSCD 1" >>confdefs.h
 
 fi
+if test "x$build_nscd" = xdefault; then
+  build_nscd=$use_nscd
+fi
 
 # Test for old glibc 2.0.x headers so that they can be removed properly
 # Search only in includedir.

configure.in

@@ -293,6 +293,13 @@ void foo (int i, void *p)
   fi
 fi
 
+AC_ARG_ENABLE([build-nscd],
+	      [AS_HELP_STRING([--disable-build-nscd],
+	       [disable building and installing the nscd daemon])],
+	      [build_nscd=$enableval],
+	      [build_nscd=default])
+AC_SUBST(build_nscd)
+
 # Note the use of $use_nscd is near the bottom of the file.
 AC_ARG_ENABLE([nscd],
 	      [AS_HELP_STRING([--disable-nscd],
@@ -2112,6 +2119,9 @@ AC_SUBST(use_nscd)
 if test "x$use_nscd" != xno; then
   AC_DEFINE([USE_NSCD])
 fi
+if test "x$build_nscd" = xdefault; then
+  build_nscd=$use_nscd
+fi
 
 # Test for old glibc 2.0.x headers so that they can be removed properly
 # Search only in includedir.

nscd/Makefile

@@ -38,7 +38,7 @@ nscd-modules := nscd connections pwdcache getpwnam_r getpwuid_r grpcache \
 		xmalloc xstrdup aicache initgrcache gai res_hconf \
 		netgroupcache
 
-ifeq ($(have-thread-library),yes)
+ifeq ($(build-nscd)$(have-thread-library),yesyes)
 
 others += nscd
 others-pie += nscd