bpo-42087: Remove support for AIX 5.3 and below (GH-22830)

As AIX 5.3 and below do not support thread_cputime, it was decided in
https://bugs.python.org/issue40680 to require AIX 6.1 and above. This
commit removes workarounds for — and references to — older, unsupported
AIX versions.

1 files changed, 2 insertions, 15 deletions

diff --git a/configure b/configure
index b8b056e..491869e 100755
--- a/configure
+++ b/configure
@@ -3430,16 +3430,6 @@ $as_echo "#define _BSD_SOURCE 1" >>confdefs.h
     define_xopen_source=no;;
   Darwin/[12][0-9].*)
     define_xopen_source=no;;
-  # On AIX 4 and 5.1, mbstate_t is defined only when _XOPEN_SOURCE == 500 but
-  # used in wcsnrtombs() and mbsnrtowcs() even if _XOPEN_SOURCE is not defined
-  # or has another value. By not (re)defining it, the defaults come in place.
-  AIX/4)
-    define_xopen_source=no;;
-  AIX/5)
-    if test `uname -r` -eq 1; then
-      define_xopen_source=no
-    fi
-    ;;
   # On QNX 6.3.2, defining _XOPEN_SOURCE prevents netdb.h from
   # defining NI_NUMERICHOST.
   QNX/6.3.2)
@@ -5828,10 +5818,7 @@ $as_echo_n "checking EXPORTSYMS... " >&6; }
 case $ac_sys_system in
 AIX*)
 	EXPORTSYMS="Modules/python.exp"
-	if test $ac_sys_release -ge 5 -o \
-		$ac_sys_release -eq 4 -a `uname -r` -ge 2 ; then
-	    EXPORTSFROM=. # the main executable
-	fi
+	EXPORTSFROM=. # the main executable
 	;;
 esac
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $EXPORTSYMS" >&5
@@ -11657,7 +11644,7 @@ fi
 DLINCLDIR=.
 
 # the dlopen() function means we might want to use dynload_shlib.o. some
-# platforms, such as AIX, have dlopen(), but don't want to use it.
+# platforms have dlopen(), but don't want to use it.
 for ac_func in dlopen
 do :
   ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"