gnu: glibc-static: Fix static NSS support.

Support for static NSS broke in glibc 2.33, meaning that 'getpw' &
co. would always fail.  This patch backports the upstream fix to
reinstate it.

Reported by Marius Bakke.

* gnu/packages/patches/glibc-static-nss.patch: New file.
* gnu/packages/make-bootstrap.scm (glibc-for-bootstrap): Use it.
* gnu/local.mk (dist_patch_DATA): Add it.

gnu/local.mk

@@ -1146,6 +1146,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/glibc-versioned-locpath.patch		\
   %D%/packages/patches/glibc-2.29-git-updates.patch     	\
   %D%/packages/patches/glibc-2.29-supported-locales.patch     	\
+  %D%/packages/patches/glibc-static-nss.patch			\
   %D%/packages/patches/glibc-supported-locales.patch     	\
   %D%/packages/patches/gmp-arm-asm-nothumb.patch		\
   %D%/packages/patches/gmp-faulty-test.patch			\

gnu/packages/make-bootstrap.scm

@@ -30,7 +30,7 @@
   #:use-module ((guix licenses) #:select (gpl3+))
   #:use-module (guix build-system trivial)
   #:use-module (guix build-system gnu)
-  #:use-module ((gnu packages) #:select (search-patch))
+  #:use-module ((gnu packages) #:select (search-patch search-patches))
   #:use-module (gnu packages base)
   #:use-module (gnu packages cross-base)
   #:use-module (gnu packages bash)
@@ -73,8 +73,10 @@ for `sh' in $PATH, and without nscd, and with static NSS modules."
     (package
       (inherit base)
       (source (origin (inherit (package-source base))
-                      (patches (cons (search-patch "glibc-bootstrap-system.patch")
+                      (patches (append (search-patches
-                                     (origin-patches (package-source base))))))
+                                        "glibc-bootstrap-system.patch"
+                                        "glibc-static-nss.patch")
+                                   (origin-patches (package-source base))))))
       (arguments
        (substitute-keyword-arguments (package-arguments base)
          ((#:configure-flags flags)