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[PATCH] Enable tunables by default

All of the major architectures are adopting tunables as a way to add
tuning to the library, from hwcap_mask for aarch64 to HLE for s390 and
ifunc and cache geometry for x86.  Given this adoption and the fact
that we don't want additional tuning knobs to be added outside of
tunables, it makes sense to enable tunables by default using this
trivial patch.

Smoke tested on x86 to ensure that tunables code was built without
specifying it as a configure flag.  I have kept it as --enabled and
not changed it to --disable since we want to still keep the option of
different kinds of front-ends for tunables.

	* Enable by default.
	* configure: Regenerate.
 configure    | 2 +- | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 422482f..f9067e2 100755
--- a/configure
+++ b/configure
@@ -3724,7 +3724,7 @@ fi
 if test "${enable_tunables+set}" = set; then :
   enableval=$enable_tunables; have_tunables=$enableval
-  have_tunables=no
+  have_tunables=yes
diff --git a/ b/
index 7f43042..fa6a883 100644
--- a/
+++ b/
@@ -436,7 +436,7 @@ AC_ARG_ENABLE([tunables],
 	       [Enable tunables support. Known values are 'yes', 'no' and 'valstring'])],
-	      [have_tunables=no])
+	      [have_tunables=yes])
 if test "$have_tunables" = yes; then

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