Don't mention linuxthreads in Depend files.

I noticed that some of the Depend files, used to determine the
subdirectory build order in sysd-sorted, still mentioned linuxthreads,
although it hasn't been supported for many years.  This patch removes
those references.  In the case of nscd, it substitutes an nptl
reference, since I believe there is a fact a thread library dependence
there; the others already mentioned nptl.

Note that I am not at all confident in the completeness of these
Depend files.

Note also that references to linuxthreads remain in a comment in
sysdeps/unix/sysv/linux/ia64/Versions, and in manual/maint.texi,
manual/signal.texi and scripts/documented.sh.

Tested x86_64 that the installed shared libraries are unchanged by the
patch (as is sysd-sorted).

	* nscd/Depend (linuxthreads): Remove.
	(nptl): Add.
	* resolv/Depend (linuxthreads): Remove.
	* rt/Depend (linuxthreads): Remove.

4 files changed, 6 insertions, 3 deletions

diff --git a/ChangeLog b/ChangeLog
index a5a6623460..2ad5f7de9a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2014-05-21  Joseph Myers  <joseph@codesourcery.com>
 
+	* nscd/Depend (linuxthreads): Remove.
+	(nptl): Add.
+	* resolv/Depend (linuxthreads): Remove.
+	* rt/Depend (linuxthreads): Remove.
+
 	* Makeconfig [$(build-hardcoded-path-in-tests) = yes]
 	(rtld-tests-LDFLAGS): Use $(elf-objpfx) instead of
 	$(common-objpfx)elf/.
diff --git a/nscd/Depend b/nscd/Depend
index fe673ba5ec..6c1aa44e6e 100644
--- a/nscd/Depend
+++ b/nscd/Depend
@@ -1 +1 @@
-linuxthreads
+nptl
diff --git a/resolv/Depend b/resolv/Depend
index 8d2587bbc1..6c1aa44e6e 100644
--- a/resolv/Depend
+++ b/resolv/Depend
@@ -1,2 +1 @@
-linuxthreads
 nptl
diff --git a/rt/Depend b/rt/Depend
index 8d2587bbc1..6c1aa44e6e 100644
--- a/rt/Depend
+++ b/rt/Depend
@@ -1,2 +1 @@
-linuxthreads
 nptl