--- Configure.org	2023-08-14 22:30:45
+++ Configure	2023-08-14 22:32:44
@@ -861,7 +861,7 @@
 locate_file libc.a f $LIBPATH ||
 locate_file libc_s.a f $LIBPATH ||
 locate_file libc.so f $LIBPATH ||
-locate_file libsystem_c.dylib f $LIBPATH ||
+locate_file libsystem_platform.dylib f $LIBPATH ||
 give_up_config "Couldn't locate libc.a in directories $LIBPATH"
 LIBFILES="$where"
 echo $n "# Using library file(s):"$c
@@ -963,7 +963,7 @@
 	sedargs="$sedargs -e '$arg'"
     done
     eval sed -n $sedargs <nmout.tmp >nmout.list
-    grep '^printf$' nmout.list >/dev/null 2>/dev/null
+    grep '^simple_dprintf$' nmout.list >/dev/null 2>/dev/null
     return
 }
 
@@ -1042,20 +1042,20 @@
 test_include string.h STRINGH
 # test_include stddef.h STDDEFH
 
-test_label setlinebuf SETLINEBUF
-test_label lockf USELOCKF
-test_label sigaction USESIG
+SETLINEBUF='#define'
+USELOCKF='#define'
+USESIG='#define'
 # test_label getrusage GETRUSAGE
-test_label ulimit USEULIMIT
-test_label getdtablesize USEGETDTABLESIZE
+USEULIMIT='#define'
+USEGETDTABLESIZE='#define'
 # test_label setitimer USETIMER
-test_label nrand48 USENRAND48
-test_label isastream USEISASTREAM
+USENRAND48='#define'
+USEISASTREAM='#undef'
 # test_either bcmp memcmp USEBCMP
 # test_either bcopy memcpy USEBCOPY
 # test_either bzero memset USEBZERO
 # test_either strchr index USESTRCHR
-test_either usleep sleep USEUSLEEP
+USEUSLEEP='#define'
 
 # sys_errlist
 cat <<EOF >/tmp/_syserr.c