10880 posix_memalign() should avoid clobbering return parameter on failure

*** 37,46 ****
--- 37,47 ----
          call_once \
          endian \
          env-7076 \
          fnmatch \
          memset_s \
+         posix_memalign \
          printf-9511 \
          psignal-5097 \
          quick_exit_order \
          quick_exit_status \
          set_constraint_handler_s \
*** 64,73 ****
--- 65,76 ----
          $(PROGS:%=%.64) \
          printf-6961.64
  
  aligned_alloc.32 :=     LDLIBS += -lproc
  aligned_alloc.64 :=     LDLIBS64 += -lproc
+ posix_memalign.32 :=    LDLIBS += -lproc
+ posix_memalign.64 :=    LDLIBS64 += -lproc
  
  memset_s.32 :=  CPPFLAGS += -D__STDC_WANT_LIB_EXT1__=1
  memset_s.64 :=  CPPFLAGS += -D__STDC_WANT_LIB_EXT1__=1
  set_constraint_handler_s.32 := CPPFLAGS += -D__STDC_WANT_LIB_EXT1__=1
  set_constraint_handler_s.64 := CPPFLAGS += -D__STDC_WANT_LIB_EXT1__=1