cbuild successfully built this on armv7l-natty-cbuild260-tcpanda02-armv5r2.

The build results are available at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.5+bzr99563~ams-codesourcery~merge-from-fsf-4.5-20120306/logs/armv7l-natty-cbuild260-tcpanda02-armv5r2

+PASS: c-c++-common/pr51768.c  (test for errors, line 16)
+PASS: c-c++-common/pr51768.c  (test for errors, line 24)
+PASS: c-c++-common/pr51768.c  (test for errors, line 8)
+PASS: c-c++-common/pr51768.c (test for excess errors)
-FAIL: g++.dg/torture/pr51344.C  -O0  (test for excess errors)
-FAIL: g++.dg/torture/pr51344.C  -O1  (test for excess errors)
-FAIL: g++.dg/torture/pr51344.C  -O2  (test for excess errors)
-FAIL: g++.dg/torture/pr51344.C  -O2 -flto  (test for excess errors)
-FAIL: g++.dg/torture/pr51344.C  -O2 -fwhopr  (test for excess errors)
-FAIL: g++.dg/torture/pr51344.C  -O3 -fomit-frame-pointer  (test for excess errors)
-FAIL: g++.dg/torture/pr51344.C  -O3 -g  (test for excess errors)
-FAIL: g++.dg/torture/pr51344.C  -Os  (test for excess errors)
+UNSUPPORTED: g++.dg/torture/pr51344.C  -O0
+UNSUPPORTED: g++.dg/torture/pr51344.C  -O1
+UNSUPPORTED: g++.dg/torture/pr51344.C  -O2
+UNSUPPORTED: g++.dg/torture/pr51344.C  -O2 -flto
+UNSUPPORTED: g++.dg/torture/pr51344.C  -O2 -fwhopr
+UNSUPPORTED: g++.dg/torture/pr51344.C  -O3 -fomit-frame-pointer
+UNSUPPORTED: g++.dg/torture/pr51344.C  -O3 -g
+UNSUPPORTED: g++.dg/torture/pr51344.C  -Os
+PASS: c-c++-common/pr51768.c  -Wc++-compat   (test for errors, line 16)
+PASS: c-c++-common/pr51768.c  -Wc++-compat   (test for errors, line 24)
+PASS: c-c++-common/pr51768.c  -Wc++-compat   (test for errors, line 8)
+PASS: c-c++-common/pr51768.c  -Wc++-compat  (test for excess errors)
+PASS: gcc.c-torture/compile/pr51767.c  -O0  (test for excess errors)
+PASS: gcc.c-torture/compile/pr51767.c  -O1  (test for excess errors)
+PASS: gcc.c-torture/compile/pr51767.c  -O2  (test for excess errors)
+PASS: gcc.c-torture/compile/pr51767.c  -O2 -flto  (test for excess errors)
+PASS: gcc.c-torture/compile/pr51767.c  -O2 -fwhopr  (test for excess errors)
+PASS: gcc.c-torture/compile/pr51767.c  -O3 -fomit-frame-pointer  (test for excess errors)
+PASS: gcc.c-torture/compile/pr51767.c  -O3 -g  (test for excess errors)
+PASS: gcc.c-torture/compile/pr51767.c  -Os  (test for excess errors)
+PASS: gcc.dg/noncompile/pr52290.c  -O0   (test for errors, line 3)
+PASS: gcc.dg/noncompile/pr52290.c  -O0   (test for errors, line 3)
+PASS: gcc.dg/noncompile/pr52290.c  -O0  (test for excess errors)
+PASS: gcc.dg/noncompile/pr52290.c  -O1   (test for errors, line 3)
+PASS: gcc.dg/noncompile/pr52290.c  -O1   (test for errors, line 3)
+PASS: gcc.dg/noncompile/pr52290.c  -O1  (test for excess errors)
+PASS: gcc.dg/noncompile/pr52290.c  -O2   (test for errors, line 3)
+PASS: gcc.dg/noncompile/pr52290.c  -O2   (test for errors, line 3)
+PASS: gcc.dg/noncompile/pr52290.c  -O2  (test for excess errors)
+PASS: gcc.dg/noncompile/pr52290.c  -O2 -flto   (test for errors, line 3)
+PASS: gcc.dg/noncompile/pr52290.c  -O2 -flto   (test for errors, line 3)
+PASS: gcc.dg/noncompile/pr52290.c  -O2 -flto  (test for excess errors)
+PASS: gcc.dg/noncompile/pr52290.c  -O2 -fwhopr   (test for errors, line 3)
+PASS: gcc.dg/noncompile/pr52290.c  -O2 -fwhopr   (test for errors, line 3)
+PASS: gcc.dg/noncompile/pr52290.c  -O2 -fwhopr  (test for excess errors)
+PASS: gcc.dg/noncompile/pr52290.c  -O3 -fomit-frame-pointer   (test for errors, line 3)
+PASS: gcc.dg/noncompile/pr52290.c  -O3 -fomit-frame-pointer   (test for errors, line 3)
+PASS: gcc.dg/noncompile/pr52290.c  -O3 -fomit-frame-pointer  (test for excess errors)
...and 62 more

The full diff is at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.5+bzr99563~ams-codesourcery~merge-from-fsf-4.5-20120306/logs/armv7l-natty-cbuild260-tcpanda02-armv5r2/testsuite-diff.txt

The full testsuite results are at:
 http://ex.seabright.co.nz/build/gcc-linaro-4.5+bzr99563~ams-codesourcery~merge-from-fsf-4.5-20120306/logs/armv7l-natty-cbuild260-tcpanda02-armv5r2/gcc-testsuite.txt

cbuild-checked: armv7l-natty-cbuild260-tcpanda02-armv5r2