glibc: add version 2.23

Clarify the reason it's not available for sparc < v9.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/glibc/Config.in

@@ -39,7 +39,13 @@ config BR2_GLIBC_VERSION_2_21
 
 config BR2_GLIBC_VERSION_2_22
 	bool "2.22"
-	depends on !BR2_sparc # broken
+	# No support for pthread barriers on < v9 ISA
+	depends on !BR2_sparc
+
+config BR2_GLIBC_VERSION_2_23
+	bool "2.23"
+	# No support for pthread barriers on < v9 ISA
+	depends on !BR2_sparc
 
 endchoice
 
@@ -51,3 +57,4 @@ config BR2_GLIBC_VERSION_STRING
 	default "2.19-svnr25243" if BR2_EGLIBC_VERSION_2_19
 	default "2.21" if BR2_GLIBC_VERSION_2_21
 	default "2.22" if BR2_GLIBC_VERSION_2_22
+	default "2.23" if BR2_GLIBC_VERSION_2_23

package/glibc/glibc.hash

@@ -6,3 +6,4 @@ md5	197836c2ba42fb146e971222647198dd	eglibc-2.19-svnr25243.tar.bz2
 sha1	8013c1935b46fd50d2d1fbfad3b0af362b75fb28	eglibc-2.19-svnr25243.tar.bz2
 sha256  aeeb362437965a5d3f40b151094ca79def04a115bd363fdd4a9a0c69482923b8  glibc-2.21.tar.xz
 sha256	eb731406903befef1d8f878a46be75ef862b9056ab0cde1626d08a7a05328948	glibc-2.22.tar.xz
+sha256	94efeb00e4603c8546209cefb3e1a50a5315c86fa9b078b6fad758e187ce13e9	glibc-2.23.tar.xz