r210901 breaks bootstrap on targets not supporting strnlen, e.g., darwin10.
../../_clean/gcc/lto-cgraph.c:976:68: error: 'strnlen' was not declared in this scope libgfortran/configure defines HAVE_STRNLEN on targets supporting it. The same revision also breaks the test g++.dg/tls/diag-1.C /opt/gcc/work/gcc/testsuite/g++.dg/tls/diag-1.C:31:1: internal compiler error: in symtab_get_node, at cgraph.h:1021 TIA, Dominique
