Let non-add-on preconfigure scripts set libc_config_ok.

ChangeLog

@@ -1,5 +1,9 @@
 2015-04-09  Roland McGrath  <roland@hack.frob.com>
 
+	* configure.ac (libc_config_ok): Initialize before reading
+	preconfigure scripts, not after.
+	* configure: Regenerated.
+
 	* test-skeleton.c (TIMEOUT): Move #define to top level.
 	(main): Grok environment variable TEST_DIRECT.  If set, print
 	test expectation details into that file and then behave as if

configure

@@ -3878,6 +3878,10 @@ if test "${with_cpu+set}" = set; then :
 fi
 
 
+# An preconfigure script can set this when it wants to disable the sanity
+# check below.
+libc_config_ok=no
+
 if frags=`ls -d $srcdir/sysdeps/*/preconfigure 2> /dev/null`
 then
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysdeps preconfigure fragments" >&5
@@ -3891,9 +3895,6 @@ $as_echo_n "checking for sysdeps preconfigure fragments... " >&6; }
 $as_echo "" >&6; }
 fi
 
-# An add-on can set this when it wants to disable the sanity check below.
-libc_config_ok=no
-
 subdirs="$subdirs "
 
 

configure.ac

@@ -412,12 +412,13 @@ AC_ARG_WITH([cpu],
   esac
 ])
 
+# An preconfigure script can set this when it wants to disable the sanity
+# check below.
+libc_config_ok=no
+
 dnl Let sysdeps/*/preconfigure act here, like they can in add-ons.
 LIBC_PRECONFIGURE([$srcdir], [for sysdeps])
 
-# An add-on can set this when it wants to disable the sanity check below.
-libc_config_ok=no
-
 dnl Having this here, though empty, makes sure that if add-ons' fragments
 dnl do AC_CONFIG_SUBDIRS([some-dir]), which just sets $subdirs, then
 dnl our AC_OUTPUT will actually use it.