cbuild successfully built this on x86_64-natty-cbuild296-oort1-x86_64r1.

The build results are available at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.7+bzr114986~ams-codesourcery~merge-from-fsf-4.7-20120508/logs/x86_64-natty-cbuild296-oort1-x86_64r1

-PASS: g++.dg/cpp0x/alias-decl-15.C  (test for errors, line 13)
-PASS: g++.dg/cpp0x/alias-decl-15.C  (test for errors, line 16)
-PASS: g++.dg/cpp0x/alias-decl-15.C  (test for errors, line 5)
+PASS: g++.dg/cpp0x/variadic-value1.C -std=c++11 (test for excess errors)
+PASS: g++.dg/cpp0x/variadic-value1.C -std=c++11 execution test
+UNSUPPORTED: g++.dg/cpp0x/variadic-value1.C -std=c++98
+PASS: g++.dg/cpp0x/variadic123.C -std=c++11 (test for excess errors)
+UNSUPPORTED: g++.dg/cpp0x/variadic123.C -std=c++98
+PASS: g++.dg/cpp0x/variadic124.C (test for excess errors)
+PASS: g++.dg/cpp0x/variadic125.C -std=c++11 (test for excess errors)
+UNSUPPORTED: g++.dg/cpp0x/variadic125.C -std=c++98
+PASS: g++.dg/cpp0x/variadic128.C -std=c++11 (test for excess errors)
+UNSUPPORTED: g++.dg/cpp0x/variadic128.C -std=c++98
+PASS: g++.dg/cpp0x/variadic129.C -std=c++11 (test for excess errors)
+UNSUPPORTED: g++.dg/cpp0x/variadic129.C -std=c++98
+PASS: g++.dg/cpp0x/variadic131.C -std=c++11 (test for excess errors)
+UNSUPPORTED: g++.dg/cpp0x/variadic131.C -std=c++98
+PASS: g++.dg/ext/attrib45.C -std=c++11  (test for errors, line 3)
+PASS: g++.dg/ext/attrib45.C -std=c++11 (test for excess errors)
+PASS: g++.dg/ext/attrib45.C -std=c++98  (test for errors, line 3)
+PASS: g++.dg/ext/attrib45.C -std=c++98 (test for excess errors)
+PASS: g++.dg/ipa/pr52939.C -std=gnu++11 (test for excess errors)
+PASS: g++.dg/ipa/pr52939.C -std=gnu++11 execution test
+PASS: g++.dg/ipa/pr52939.C -std=gnu++98 (test for excess errors)
+PASS: g++.dg/ipa/pr52939.C -std=gnu++98 execution test
+PASS: g++.dg/lookup/using52.C -std=c++11 (test for excess errors)
+PASS: g++.dg/lookup/using52.C -std=c++98 (test for excess errors)
+PASS: g++.dg/lto/pr52605 cp_lto_pr52605_0.o assemble, -flto -g
+PASS: g++.dg/lto/pr52605 cp_lto_pr52605_0.o-cp_lto_pr52605_0.o link, -flto -g
+PASS: g++.dg/opt/vrp3.C -std=gnu++11 (test for excess errors)
+PASS: g++.dg/opt/vrp3.C -std=gnu++11 execution test
+PASS: g++.dg/opt/vrp3.C -std=gnu++98 (test for excess errors)
+PASS: g++.dg/opt/vrp3.C -std=gnu++98 execution test
+PASS: g++.dg/other/final2.C (test for excess errors)
+PASS: g++.dg/other/final2.C scan-tree-dump-times original "F1::operator int" 1
+PASS: g++.dg/other/final2.C scan-tree-dump-times original "F1::operator\(\)" 1
+PASS: g++.dg/other/final2.C scan-tree-dump-times original "F1::operator\+\+" 1
+PASS: g++.dg/other/final2.C scan-tree-dump-times original "F2::operator int" 1
+PASS: g++.dg/other/final2.C scan-tree-dump-times original "F2::operator\(\)" 1
+PASS: g++.dg/other/final2.C scan-tree-dump-times original "F2::operator\+\+" 1
+PASS: g++.dg/parse/crash59.C -std=c++11  (test for errors, line 3)
+PASS: g++.dg/parse/crash59.C -std=c++11 (test for excess errors)
+PASS: g++.dg/parse/crash59.C -std=c++98  (test for errors, line 3)
+PASS: g++.dg/parse/crash59.C -std=c++98 (test for excess errors)
+PASS: g++.dg/template/qualified-id5.C -std=c++11 (test for excess errors)
+PASS: g++.dg/template/qualified-id5.C -std=c++98 (test for excess errors)
-PASS: g++.dg/tm/vector-1.C -std=gnu++11 (test for excess errors)
-PASS: g++.dg/tm/vector-1.C -std=gnu++98 (test for excess errors)
+FAIL: g++.dg/tm/vector-1.C -std=gnu++11 (internal compiler error)
+FAIL: g++.dg/tm/vector-1.C -std=gnu++11 (test for excess errors)
...and 4288 more

The full diff is at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.7+bzr114986~ams-codesourcery~merge-from-fsf-4.7-20120508/logs/x86_64-natty-cbuild296-oort1-x86_64r1/testsuite-diff.txt

The full testsuite results are at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.7+bzr114986~ams-codesourcery~merge-from-fsf-4.7-20120508/logs/x86_64-natty-cbuild296-oort1-x86_64r1/gcc-testsuite.txt

cbuild-checked: x86_64-natty-cbuild296-oort1-x86_64r1