Allow for different directories containing the "libc",

as it may well happen with 32- vs 64-bit Linux systems.

This patch was proposed immediately with the report of
Bug #29658  wrong test for static nss checking on linux, doesn't cover all platforms

configure.in

@@ -631,7 +631,7 @@ AC_SUBST(NOINST_LDFLAGS)
 
 if test "$TARGET_LINUX" = "true" -a "$static_nss" = ""
 then
-  tmp=`nm /usr/lib/libc.a  | grep _nss_files_getaliasent_r`
+  tmp=`nm /usr/lib*/libc.a  | grep _nss_files_getaliasent_r`
   if test -n "$tmp"
   then
      STATIC_NSS_FLAGS="-lc -lnss_files -lnss_dns -lresolv"