The valgrind tool can be used to find out both memory leaks and illegal
heap memory accesses. As of version 3.3.0, Valgrind only supports Linux
-on x86, x86-64 and PowerPC and Darwin (OS X) on x86 and x86-64). The
+on x86, x86-64 and PowerPC and Darwin (OS X) on x86 and x86-64. The
special "test.valgrind" target can be used to run the tests under
valgrind. Found errors and memory leaks are logged in files named
F<testfile.valgrind> and by default output is displayed inline.