configure: fix AC_CACHE_VAL warnings on Fedora 10

Autoconf 2.63 (and maybe earlier releases) complains about the cache
variable name used in aclocal/libblkid.m4:

configure.ac:217: warning: AC_CACHE_VAL(libblkid_is_recent, ...):
suspicious cache-id, must contain _cv_ to be cached
../../lib/autoconf/general.m4:1974: AC_CACHE_VAL is expanded from...
aclocal/libblkid.m4:2: AC_BLKID_VERS is expanded from...
configure.ac:217: the top level

This addresses
  https://bugzilla.redhat.com/attachment.cgi?bugid=481386 .

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>

diff --git a/aclocal/libblkid.m4 b/aclocal/libblkid.m4
index d751a8c85e0d917a984247129c4150224312f627..10824e9f58f1ae5164945f6baf14c000ba7949fd 100644 (file)
--- a/aclocal/libblkid.m4
+++ b/aclocal/libblkid.m4
@@ -1,7 +1,7 @@
 dnl *************************** libblkid needs version 1.40 or later ***********************
 AC_DEFUN([AC_BLKID_VERS], [
   AC_MSG_CHECKING(for suitable libblkid version)
-  AC_CACHE_VAL(libblkid_is_recent,
+  AC_CACHE_VAL([libblkid_cv_is_recent],
    [
     saved_LIBS="$LIBS"
     LIBS=-lblkid
@@ -12,9 +12,8 @@ AC_DEFUN([AC_BLKID_VERS], [
                int vers = blkid_get_library_version(0, 0);
                return vers >= 140 ? 0 : 1;
        }
-       ], libblkid_is_recent=yes, libblkid_is_recent=no,
-       libblkid_is_recent=unknown)
-    LIBS="$saved_LIBS"
-    ])dnl
-  AC_MSG_RESULT($libblkid_is_recent)
+       ], [libblkid_cv_is_recent=yes], [libblkid_cv_is_recent=no],
+       [libblkid_cv_is_recent=unknown])
+    LIBS="$saved_LIBS"])
+  AC_MSG_RESULT($libblkid_cv_is_recent)
 ])dnl

diff --git a/configure.ac b/configure.ac
index c8508f1328a382a43ee78a656cd6393fa1c8f80a..4fd111f7e6f9ac01b2d964310a2ae9cb7d91e041 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -219,9 +219,9 @@ if test "$choose_blkid" != no; then
    AC_BLKID_VERS
    if test $choose_blkid = yes; then
       use_blkid=1
-      test $libblkid_is_recent = no && AC_MSG_WARN([libblkid is old and may cause mountd to leak memory])
+      test $libblkid_cv_is_recent = no && AC_MSG_WARN([libblkid is old and may cause mountd to leak memory])
    else
-      if test $libblkid_is_recent = yes
+      if test $libblkid_cv_is_recent = yes
       then use_blkid=1
       else use_blkid=0
           AC_MSG_WARN([uuid support disabled as libblkid is too old])