10880 posix_memalign() should avoid clobbering return parameter on failure

@@ -37,10 +37,11 @@
         call_once \
         endian \
         env-7076 \
         fnmatch \
         memset_s \
+        posix_memalign \
         printf-9511 \
         psignal-5097 \
         quick_exit_order \
         quick_exit_status \
         set_constraint_handler_s \

@@ -64,10 +65,12 @@
         $(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