glmark2: Fix gcc 6 configure error

Remove the un-necessary check for sqrt and avoid a gcc 6 configure error.

Upstream-Status: Submitted [Pull request: a39907dd19726b2df3bac29a4bdc59d1bd0922a1]

Signed-off-by: Tom Hochstein <tom.hochstein@nxp.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-oe/recipes-benchmark/glmark2/files/Fix-configure-for-sqrt-check.patch

@@ -0,0 +1,13 @@
+Index: git/wscript
+===================================================================
+--- git.orig/wscript	2016-07-29 13:15:44.954249796 -0500
++++ git/wscript	2016-07-29 15:52:06.196768865 -0500
+@@ -90,7 +90,7 @@
+         ctx.check_cxx(lib = lib, uselib_store = uselib)
+ 
+     # Check required functions
+-    req_funcs = [('memset', 'string.h', []) ,('sqrt', 'math.h', ['m'])]
++    req_funcs = [('memset', 'string.h', [])]
+     for func, header, uselib in req_funcs:
+         ctx.check_cxx(function_name = func, header_name = header,
+                       uselib = uselib, mandatory = True)

meta-oe/recipes-benchmark/glmark2/glmark2_git.bb

@@ -14,7 +14,8 @@ PV = "2014.03+${SRCPV}"
 
 SRC_URI = "git://github.com/glmark2/glmark2.git;protocol=https \
            file://build-Check-packages-to-be-used-by-the-enabled-flavo.patch \
-           file://0001-Fix-wl_surface-should-be-destoryed-after-the-wl_wind.patch"
+           file://0001-Fix-wl_surface-should-be-destoryed-after-the-wl_wind.patch \
+           file://Fix-configure-for-sqrt-check.patch"
 SRCREV = "fa71af2dfab711fac87b9504b6fc9862f44bf72a"
 
 S = "${WORKDIR}/git"
@@ -51,5 +52,3 @@ python __anonymous() {
         d.appendVar("EXTRA_OECONF", " --with-flavors=%s" % ",".join(flavors))
 }
 
-# http://errors.yoctoproject.org/Errors/Details/68626/
-PNBLACKLIST[glmark2] ?= "BROKEN: fails to build with gcc-6"