X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/be2fde8755ef463f48111bd2090e3bb29d16e8d7..b0ba908cc33ac5c4281ec27b5f42d560de67b713:/configure?ds=sidebyside

diff --git a/configure b/configure
index 07b7889..4b8170a 100755
--- a/configure
+++ b/configure
@@ -11,7 +11,7 @@
 # This configure script is free software; the Free Software Foundation
 # gives unlimited permission to copy, distribute and modify it.
 #
-# Copyright (C) 2009-2014  Jay Freeman (saurik)
+# Copyright (C) 2009-2015  Jay Freeman (saurik)
 ## -------------------- ##
 ## M4sh Initialization. ##
 ## -------------------- ##
@@ -638,16 +638,6 @@ ac_subst_vars='am__EXEEXT_FALSE
 am__EXEEXT_TRUE
 LTLIBOBJS
 LIBOBJS
-CY_MACH_FALSE
-CY_MACH_TRUE
-CY_MACH
-CY_ATTACH_GROUP
-ac_ct__OTOOL
-_OTOOL
-ac_ct__NM
-_NM
-ac_ct__LIPO
-_LIPO
 SO
 LTFLAGS
 LTLIBGCC
@@ -667,13 +657,14 @@ LIBFFI_LIBS
 LIBFFI_CFLAGS
 CY_EXECUTE_FALSE
 CY_EXECUTE_TRUE
+CY_ATTACH_FALSE
+CY_ATTACH_TRUE
 CY_CONSOLE_FALSE
 CY_CONSOLE_TRUE
 LTJAVASCRIPTCORE
 WEBKIT_LIBS
 WEBKIT_CFLAGS
 CY_EXECUTE
-CY_ARCH
 PTHREAD_CFLAGS
 PTHREAD_LIBS
 PTHREAD_CC
@@ -833,6 +824,7 @@ with_sysroot
 enable_libtool_lock
 enable_javascript
 enable_console
+enable_attach
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1499,6 +1491,7 @@ Optional Features:
                           available option for ENGINE is JavaScriptCore)
                           [default=yes]
   --disable-console       disable console
+  --disable-attach        disable attach
 
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
@@ -1617,7 +1610,7 @@ Copyright (C) 2012 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 
-Copyright (C) 2009-2014  Jay Freeman (saurik)
+Copyright (C) 2009-2015  Jay Freeman (saurik)
 _ACEOF
   exit
 fi
@@ -2570,7 +2563,7 @@ ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
 ac_config_headers="$ac_config_headers config.h"
 
 
-am__api_version='1.14'
+am__api_version='1.15'
 
 # Find a good install program.  We prefer a C program (faster),
 # so one script is as good as another.  But avoid the broken or
@@ -2742,8 +2735,8 @@ test "$program_suffix" != NONE &&
 ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
 program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"`
 
-# expand $ac_aux_dir to an absolute path
-am_aux_dir=`cd $ac_aux_dir && pwd`
+# Expand $ac_aux_dir to an absolute path.
+am_aux_dir=`cd "$ac_aux_dir" && pwd`
 
 if test x"${MISSING+set}" != xset; then
   case $am_aux_dir in
@@ -2762,7 +2755,7 @@ else
 $as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;}
 fi
 
-if test x"${install_sh}" != xset; then
+if test x"${install_sh+set}" != xset; then
   case $am_aux_dir in
   *\ * | *\	*)
     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
@@ -3090,8 +3083,8 @@ MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 mkdir_p='$(MKDIR_P)'
 
-# We need awk for the "check" target.  The system "awk" is bad on
-# some platforms.
+# We need awk for the "check" target (and possibly the TAP driver).  The
+# system "awk" is bad on some platforms.
 # Always define AMTAR for backward compatibility.  Yes, it's still used
 # in the wild :-(  We should find a proper way to deprecate it ...
 AMTAR='$${TAR-tar}'
@@ -3149,6 +3142,7 @@ END
   fi
 fi
 
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable maintainer-specific portions of Makefiles" >&5
 $as_echo_n "checking whether to enable maintainer-specific portions of Makefiles... " >&6; }
     # Check whether --enable-maintainer-mode was given.
@@ -18233,12 +18227,12 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for cc -Wno-overloaded-virtual" >&5
-$as_echo_n "checking for cc -Wno-overloaded-virtual... " >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for cc -Wno-empty-body" >&5
+$as_echo_n "checking for cc -Wno-empty-body... " >&6; }
 
     cy_save=$CFLAGS
 
-  for element in -Wno-overloaded-virtual; do
+  for element in -Wno-empty-body; do
     haveit=
     for x in $CFLAGS; do
 
@@ -18277,7 +18271,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-  for element in -Wno-overloaded-virtual; do
+  for element in -Wno-empty-body; do
     haveit=
     for x in $CFLAGS; do
 
@@ -18319,12 +18313,12 @@ ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c++ -Wno-overloaded-virtual" >&5
-$as_echo_n "checking for c++ -Wno-overloaded-virtual... " >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c++ -Wno-empty-body" >&5
+$as_echo_n "checking for c++ -Wno-empty-body... " >&6; }
 
     cy_save=$CXXFLAGS
 
-  for element in -Wno-overloaded-virtual; do
+  for element in -Wno-empty-body; do
     haveit=
     for x in $CXXFLAGS; do
 
@@ -18363,7 +18357,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-  for element in -Wno-overloaded-virtual; do
+  for element in -Wno-empty-body; do
     haveit=
     for x in $CXXFLAGS; do
 
@@ -18405,12 +18399,12 @@ ac_compile='$OBJCXX -c $OBJCXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$OBJCXX -o conftest$ac_exeext $OBJCXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_objcxx_compiler_gnu
 
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c++ -ObjC -Wno-overloaded-virtual" >&5
-$as_echo_n "checking for c++ -ObjC -Wno-overloaded-virtual... " >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c++ -ObjC -Wno-empty-body" >&5
+$as_echo_n "checking for c++ -ObjC -Wno-empty-body... " >&6; }
 
     cy_save=$OBJCXXFLAGS
 
-  for element in -Wno-overloaded-virtual; do
+  for element in -Wno-empty-body; do
     haveit=
     for x in $OBJCXXFLAGS; do
 
@@ -18449,7 +18443,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-  for element in -Wno-overloaded-virtual; do
+  for element in -Wno-empty-body; do
     haveit=
     for x in $OBJCXXFLAGS; do
 
@@ -18493,12 +18487,12 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for cc -Wno-parentheses" >&5
-$as_echo_n "checking for cc -Wno-parentheses... " >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for cc -Wno-overloaded-virtual" >&5
+$as_echo_n "checking for cc -Wno-overloaded-virtual... " >&6; }
 
     cy_save=$CFLAGS
 
-  for element in -Wno-parentheses; do
+  for element in -Wno-overloaded-virtual; do
     haveit=
     for x in $CFLAGS; do
 
@@ -18537,7 +18531,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-  for element in -Wno-parentheses; do
+  for element in -Wno-overloaded-virtual; do
     haveit=
     for x in $CFLAGS; do
 
@@ -18579,12 +18573,12 @@ ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c++ -Wno-parentheses" >&5
-$as_echo_n "checking for c++ -Wno-parentheses... " >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c++ -Wno-overloaded-virtual" >&5
+$as_echo_n "checking for c++ -Wno-overloaded-virtual... " >&6; }
 
     cy_save=$CXXFLAGS
 
-  for element in -Wno-parentheses; do
+  for element in -Wno-overloaded-virtual; do
     haveit=
     for x in $CXXFLAGS; do
 
@@ -18623,7 +18617,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-  for element in -Wno-parentheses; do
+  for element in -Wno-overloaded-virtual; do
     haveit=
     for x in $CXXFLAGS; do
 
@@ -18665,12 +18659,12 @@ ac_compile='$OBJCXX -c $OBJCXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$OBJCXX -o conftest$ac_exeext $OBJCXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_objcxx_compiler_gnu
 
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c++ -ObjC -Wno-parentheses" >&5
-$as_echo_n "checking for c++ -ObjC -Wno-parentheses... " >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c++ -ObjC -Wno-overloaded-virtual" >&5
+$as_echo_n "checking for c++ -ObjC -Wno-overloaded-virtual... " >&6; }
 
     cy_save=$OBJCXXFLAGS
 
-  for element in -Wno-parentheses; do
+  for element in -Wno-overloaded-virtual; do
     haveit=
     for x in $OBJCXXFLAGS; do
 
@@ -18709,7 +18703,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-  for element in -Wno-parentheses; do
+  for element in -Wno-overloaded-virtual; do
     haveit=
     for x in $OBJCXXFLAGS; do
 
@@ -18753,12 +18747,12 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for cc -Wno-unneeded-internal-declaration" >&5
-$as_echo_n "checking for cc -Wno-unneeded-internal-declaration... " >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for cc -Wno-parentheses" >&5
+$as_echo_n "checking for cc -Wno-parentheses... " >&6; }
 
     cy_save=$CFLAGS
 
-  for element in -Wno-unneeded-internal-declaration; do
+  for element in -Wno-parentheses; do
     haveit=
     for x in $CFLAGS; do
 
@@ -18797,7 +18791,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-  for element in -Wno-unneeded-internal-declaration; do
+  for element in -Wno-parentheses; do
     haveit=
     for x in $CFLAGS; do
 
@@ -18839,12 +18833,12 @@ ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c++ -Wno-unneeded-internal-declaration" >&5
-$as_echo_n "checking for c++ -Wno-unneeded-internal-declaration... " >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c++ -Wno-parentheses" >&5
+$as_echo_n "checking for c++ -Wno-parentheses... " >&6; }
 
     cy_save=$CXXFLAGS
 
-  for element in -Wno-unneeded-internal-declaration; do
+  for element in -Wno-parentheses; do
     haveit=
     for x in $CXXFLAGS; do
 
@@ -18883,7 +18877,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-  for element in -Wno-unneeded-internal-declaration; do
+  for element in -Wno-parentheses; do
     haveit=
     for x in $CXXFLAGS; do
 
@@ -18925,12 +18919,12 @@ ac_compile='$OBJCXX -c $OBJCXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$OBJCXX -o conftest$ac_exeext $OBJCXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_objcxx_compiler_gnu
 
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c++ -ObjC -Wno-unneeded-internal-declaration" >&5
-$as_echo_n "checking for c++ -ObjC -Wno-unneeded-internal-declaration... " >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c++ -ObjC -Wno-parentheses" >&5
+$as_echo_n "checking for c++ -ObjC -Wno-parentheses... " >&6; }
 
     cy_save=$OBJCXXFLAGS
 
-  for element in -Wno-unneeded-internal-declaration; do
+  for element in -Wno-parentheses; do
     haveit=
     for x in $OBJCXXFLAGS; do
 
@@ -18969,7 +18963,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 
-  for element in -Wno-unneeded-internal-declaration; do
+  for element in -Wno-parentheses; do
     haveit=
     for x in $OBJCXXFLAGS; do
 
@@ -19007,158 +19001,725 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 
 
-
-ac_ext=c
+    ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
-ax_pthread_ok=no
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for cc -Wno-tautological-undefined-compare" >&5
+$as_echo_n "checking for cc -Wno-tautological-undefined-compare... " >&6; }
+
+    cy_save=$CFLAGS
+
+  for element in -Wno-tautological-undefined-compare; do
+    haveit=
+    for x in $CFLAGS; do
+
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      CFLAGS="${CFLAGS}${CFLAGS:+ }$element"
+    fi
+  done
 
-# We used to check for pthread.h first, but this fails if pthread.h
-# requires special compiler flags (e.g. on True64 or Sequent).
-# It gets checked for in the link test anyway.
 
-# First of all, check if the user has set any of the PTHREAD_LIBS,
-# etcetera environment variables, and if threads linking works using
-# them:
-if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
-        save_CFLAGS="$CFLAGS"
-        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-        save_LIBS="$LIBS"
-        LIBS="$PTHREAD_LIBS $LIBS"
-        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS" >&5
-$as_echo_n "checking for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS... " >&6; }
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char pthread_join ();
-int
-main ()
-{
-return pthread_join ();
-  ;
-  return 0;
-}
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ax_pthread_ok=yes
+if ac_fn_c_try_compile "$LINENO"; then :
+  cy_good=1
+else
+  cy_good=0
 fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5
-$as_echo "$ax_pthread_ok" >&6; }
-        if test x"$ax_pthread_ok" = xno; then
-                PTHREAD_LIBS=""
-                PTHREAD_CFLAGS=""
-        fi
-        LIBS="$save_LIBS"
-        CFLAGS="$save_CFLAGS"
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+    CFLAGS=$cy_save
+    if test "x$cy_good" = x1; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+  for element in -Wno-tautological-undefined-compare; do
+    haveit=
+    for x in $CFLAGS; do
+
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      CFLAGS="${CFLAGS}${CFLAGS:+ }$element"
+    fi
+  done
+
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
 fi
 
-# We must check for the threads library under a number of different
-# names; the ordering is very important because some systems
-# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
-# libraries is broken (non-POSIX).
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
-# Create a list of thread flags to try.  Items starting with a "-" are
-# C compiler flags, and other items are library names, except for "none"
-# which indicates that we try without any flags at all, and "pthread-config"
-# which is a program returning the flags for the Pth emulation library.
 
-ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
 
-# The ordering *is* (sometimes) important.  Some notes on the
-# individual items follow:
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
-# pthreads: AIX (must check this before -lpthread)
-# none: in case threads are in libc; should be tried before -Kthread and
-#       other compiler flags to prevent continual compiler warnings
-# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
-# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
-# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
-# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
-# -pthreads: Solaris/gcc
-# -mthreads: Mingw32/gcc, Lynx/gcc
-# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
-#      doesn't hurt to check since this sometimes defines pthreads too;
-#      also defines -D_REENTRANT)
-#      ... -mt is also the pthreads flag for HP/aCC
-# pthread: Linux, etcetera
-# --thread-safe: KAI C++
-# pthread-config: use pthread-config program (for GNU Pth library)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c++ -Wno-tautological-undefined-compare" >&5
+$as_echo_n "checking for c++ -Wno-tautological-undefined-compare... " >&6; }
 
-case ${host_os} in
-        solaris*)
+    cy_save=$CXXFLAGS
 
-        # On Solaris (at least, for some versions), libc contains stubbed
-        # (non-functional) versions of the pthreads routines, so link-based
-        # tests will erroneously succeed.  (We need to link with -pthreads/-mt/
-        # -lpthread.)  (The stubs are missing pthread_cleanup_push, or rather
-        # a function called by this macro, so we could check for that, but
-        # who knows whether they'll stub that too in a future libc.)  So,
-        # we'll just look for -pthreads and -lpthread first:
+  for element in -Wno-tautological-undefined-compare; do
+    haveit=
+    for x in $CXXFLAGS; do
 
-        ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags"
-        ;;
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
 
-        darwin*)
-        ax_pthread_flags="-pthread $ax_pthread_flags"
-        ;;
-esac
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      CXXFLAGS="${CXXFLAGS}${CXXFLAGS:+ }$element"
+    fi
+  done
 
-# Clang doesn't consider unrecognized options an error unless we specify
-# -Werror. We throw in some extra Clang-specific options to ensure that
-# this doesn't happen for GCC, which also accepts -Werror.
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if compiler needs -Werror to reject unknown flags" >&5
-$as_echo_n "checking if compiler needs -Werror to reject unknown flags... " >&6; }
-save_CFLAGS="$CFLAGS"
-ax_pthread_extra_flags="-Werror"
-CFLAGS="$CFLAGS $ax_pthread_extra_flags -Wunknown-warning-option -Wsizeof-array-argument"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-int foo(void);
-int
-main ()
-{
-foo()
-  ;
-  return 0;
-}
+
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  cy_good=1
 else
-  ax_pthread_extra_flags=
-                   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  cy_good=0
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-CFLAGS="$save_CFLAGS"
-
-if test x"$ax_pthread_ok" = xno; then
-for flag in $ax_pthread_flags; do
 
-        case $flag in
-                none)
-                { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work without any flags" >&5
-$as_echo_n "checking whether pthreads work without any flags... " >&6; }
-                ;;
+    CXXFLAGS=$cy_save
+    if test "x$cy_good" = x1; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
 
-                -*)
-                { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with $flag" >&5
-$as_echo_n "checking whether pthreads work with $flag... " >&6; }
-                PTHREAD_CFLAGS="$flag"
-                ;;
+  for element in -Wno-tautological-undefined-compare; do
+    haveit=
+    for x in $CXXFLAGS; do
+
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      CXXFLAGS="${CXXFLAGS}${CXXFLAGS:+ }$element"
+    fi
+  done
+
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+
+    ac_ext=mm
+ac_cpp='$OBJCXXCPP $CPPFLAGS'
+ac_compile='$OBJCXX -c $OBJCXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$OBJCXX -o conftest$ac_exeext $OBJCXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_objcxx_compiler_gnu
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c++ -ObjC -Wno-tautological-undefined-compare" >&5
+$as_echo_n "checking for c++ -ObjC -Wno-tautological-undefined-compare... " >&6; }
+
+    cy_save=$OBJCXXFLAGS
+
+  for element in -Wno-tautological-undefined-compare; do
+    haveit=
+    for x in $OBJCXXFLAGS; do
+
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      OBJCXXFLAGS="${OBJCXXFLAGS}${OBJCXXFLAGS:+ }$element"
+    fi
+  done
+
+
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+_ACEOF
+if ac_fn_objcxx_try_compile "$LINENO"; then :
+  cy_good=1
+else
+  cy_good=0
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+    OBJCXXFLAGS=$cy_save
+    if test "x$cy_good" = x1; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+  for element in -Wno-tautological-undefined-compare; do
+    haveit=
+    for x in $OBJCXXFLAGS; do
+
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      OBJCXXFLAGS="${OBJCXXFLAGS}${OBJCXXFLAGS:+ }$element"
+    fi
+  done
+
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+
+
+
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for cc -Wno-unneeded-internal-declaration" >&5
+$as_echo_n "checking for cc -Wno-unneeded-internal-declaration... " >&6; }
+
+    cy_save=$CFLAGS
+
+  for element in -Wno-unneeded-internal-declaration; do
+    haveit=
+    for x in $CFLAGS; do
+
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      CFLAGS="${CFLAGS}${CFLAGS:+ }$element"
+    fi
+  done
+
+
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  cy_good=1
+else
+  cy_good=0
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+    CFLAGS=$cy_save
+    if test "x$cy_good" = x1; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+  for element in -Wno-unneeded-internal-declaration; do
+    haveit=
+    for x in $CFLAGS; do
+
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      CFLAGS="${CFLAGS}${CFLAGS:+ }$element"
+    fi
+  done
+
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c++ -Wno-unneeded-internal-declaration" >&5
+$as_echo_n "checking for c++ -Wno-unneeded-internal-declaration... " >&6; }
+
+    cy_save=$CXXFLAGS
+
+  for element in -Wno-unneeded-internal-declaration; do
+    haveit=
+    for x in $CXXFLAGS; do
+
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      CXXFLAGS="${CXXFLAGS}${CXXFLAGS:+ }$element"
+    fi
+  done
+
+
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  cy_good=1
+else
+  cy_good=0
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+    CXXFLAGS=$cy_save
+    if test "x$cy_good" = x1; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+  for element in -Wno-unneeded-internal-declaration; do
+    haveit=
+    for x in $CXXFLAGS; do
+
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      CXXFLAGS="${CXXFLAGS}${CXXFLAGS:+ }$element"
+    fi
+  done
+
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+
+    ac_ext=mm
+ac_cpp='$OBJCXXCPP $CPPFLAGS'
+ac_compile='$OBJCXX -c $OBJCXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$OBJCXX -o conftest$ac_exeext $OBJCXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_objcxx_compiler_gnu
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for c++ -ObjC -Wno-unneeded-internal-declaration" >&5
+$as_echo_n "checking for c++ -ObjC -Wno-unneeded-internal-declaration... " >&6; }
+
+    cy_save=$OBJCXXFLAGS
+
+  for element in -Wno-unneeded-internal-declaration; do
+    haveit=
+    for x in $OBJCXXFLAGS; do
+
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      OBJCXXFLAGS="${OBJCXXFLAGS}${OBJCXXFLAGS:+ }$element"
+    fi
+  done
+
+
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+_ACEOF
+if ac_fn_objcxx_try_compile "$LINENO"; then :
+  cy_good=1
+else
+  cy_good=0
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+    OBJCXXFLAGS=$cy_save
+    if test "x$cy_good" = x1; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+  for element in -Wno-unneeded-internal-declaration; do
+    haveit=
+    for x in $OBJCXXFLAGS; do
+
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      OBJCXXFLAGS="${OBJCXXFLAGS}${OBJCXXFLAGS:+ }$element"
+    fi
+  done
+
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+
+
+
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+ax_pthread_ok=no
+
+# We used to check for pthread.h first, but this fails if pthread.h
+# requires special compiler flags (e.g. on Tru64 or Sequent).
+# It gets checked for in the link test anyway.
+
+# First of all, check if the user has set any of the PTHREAD_LIBS,
+# etcetera environment variables, and if threads linking works using
+# them:
+if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
+        save_CFLAGS="$CFLAGS"
+        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+        save_LIBS="$LIBS"
+        LIBS="$PTHREAD_LIBS $LIBS"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS" >&5
+$as_echo_n "checking for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS... " >&6; }
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_join ();
+int
+main ()
+{
+return pthread_join ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_pthread_ok=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5
+$as_echo "$ax_pthread_ok" >&6; }
+        if test x"$ax_pthread_ok" = xno; then
+                PTHREAD_LIBS=""
+                PTHREAD_CFLAGS=""
+        fi
+        LIBS="$save_LIBS"
+        CFLAGS="$save_CFLAGS"
+fi
+
+# We must check for the threads library under a number of different
+# names; the ordering is very important because some systems
+# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
+# libraries is broken (non-POSIX).
+
+# Create a list of thread flags to try.  Items starting with a "-" are
+# C compiler flags, and other items are library names, except for "none"
+# which indicates that we try without any flags at all, and "pthread-config"
+# which is a program returning the flags for the Pth emulation library.
+
+ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mt -mthreads pthread --thread-safe pthread-config"
+
+# The ordering *is* (sometimes) important.  Some notes on the
+# individual items follow:
+
+# pthreads: AIX (must check this before -lpthread)
+# none: in case threads are in libc; should be tried before -Kthread and
+#       other compiler flags to prevent continual compiler warnings
+# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
+# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
+# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
+# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64
+# -pthreads: Solaris/gcc
+# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
+#      doesn't hurt to check since this sometimes defines pthreads and
+#      -D_REENTRANT too), HP C (must be checked before -lpthread, which
+#      is present but should not be used directly)
+# -mthreads: Mingw32/gcc, Lynx/gcc
+# pthread: Linux, etcetera
+# --thread-safe: KAI C++
+# pthread-config: use pthread-config program (for GNU Pth library)
+
+case $host_os in
+
+        hpux*)
+
+        # From the cc(1) man page: "[-mt] Sets various -D flags to enable
+        # multi-threading and also sets -lpthread."
+
+        ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags"
+        ;;
+
+        openedition*)
+
+        # IBM z/OS requires a feature-test macro to be defined in order to
+        # enable POSIX threads at all, so give the user a hint if this is
+        # not set. (We don't define these ourselves, as they can affect
+        # other portions of the system API in unpredictable ways.)
+
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#            if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS)
+             AX_PTHREAD_ZOS_MISSING
+#            endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "AX_PTHREAD_ZOS_MISSING" >/dev/null 2>&1; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&5
+$as_echo "$as_me: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&2;}
+fi
+rm -f conftest*
+
+        ;;
+
+        solaris*)
+
+        # Newer versions of Solaris require the "-mt -lpthread" pair, and we
+        # check that first.  On some older versions, libc contains stubbed
+        # (non-functional) versions of the pthreads routines, so link-based
+        # tests will erroneously succeed.  (We need to link with -pthreads/-mt/
+        # -lpthread.)  (The stubs are missing pthread_cleanup_push, or rather
+        # a function called by this macro, so we could check for that, but
+        # who knows whether they'll stub that too in a future libc.)  So
+        # we'll look for -pthreads and -lpthread shortly thereafter.
+
+        ax_pthread_flags="-mt,pthread -pthreads -pthread pthread $ax_pthread_flags"
+        ;;
+esac
+
+# Older versions of Clang only give a warning instead of an error for an
+# unrecognized option, unless we specify -Werror. (We throw in some extra
+# Clang warning flags for good measure.)
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if compiler needs certain flags to reject unknown flags" >&5
+$as_echo_n "checking if compiler needs certain flags to reject unknown flags... " >&6; }
+if ${ax_cv_PTHREAD_REJECT_UNKNOWN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ax_cv_PTHREAD_REJECT_UNKNOWN=unknown
+     save_CFLAGS="$CFLAGS"
+     ax_pthread_extra_flags="-Wunknown-warning-option -Wunused-command-line-argument"
+     CFLAGS="$CFLAGS $ax_pthread_extra_flags -Wfoobaz -foobaz"
+     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo(void);
+int
+main ()
+{
+foo()
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ax_cv_PTHREAD_REJECT_UNKNOWN="-Werror $ax_pthread_extra_flags"
+else
+  ax_cv_PTHREAD_REJECT_UNKNOWN=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+     CFLAGS="$save_CFLAGS"
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_REJECT_UNKNOWN" >&5
+$as_echo "$ax_cv_PTHREAD_REJECT_UNKNOWN" >&6; }
+ax_pthread_extra_flags=
+if test "x$ax_cv_PTHREAD_REJECT_UNKNOWN" != "xno"; then :
+  ax_pthread_extra_flags="$ax_cv_PTHREAD_REJECT_UNKNOWN"
+fi
+
+if test x"$ax_pthread_ok" = xno; then
+for flag in $ax_pthread_flags; do
+
+        case $flag in
+                none)
+                { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work without any flags" >&5
+$as_echo_n "checking whether pthreads work without any flags... " >&6; }
+                ;;
+
+                -mt,pthread)
+                { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with -mt -lpthread" >&5
+$as_echo_n "checking whether pthreads work with -mt -lpthread... " >&6; }
+                PTHREAD_CFLAGS="-mt"
+                PTHREAD_LIBS="-lpthread"
+                ;;
+
+                -*)
+                { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with $flag" >&5
+$as_echo_n "checking whether pthreads work with $flag... " >&6; }
+                PTHREAD_CFLAGS="$flag"
+                ;;
 
                 pthread-config)
                 # Extract the first word of "pthread-config", so it can be a program name with args.
@@ -19273,9 +19834,12 @@ if test "x$ax_pthread_ok" = xyes; then
         # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
         { $as_echo "$as_me:${as_lineno-$LINENO}: checking for joinable pthread attribute" >&5
 $as_echo_n "checking for joinable pthread attribute... " >&6; }
-        attr_name=unknown
-        for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
-            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+if ${ax_cv_PTHREAD_JOINABLE_ATTR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ax_cv_PTHREAD_JOINABLE_ATTR=unknown
+             for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
+                 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <pthread.h>
 int
@@ -19287,49 +19851,69 @@ int attr = $attr; return attr /* ; */
 }
 _ACEOF
 if ac_fn_c_try_link "$LINENO"; then :
-  attr_name=$attr; break
+  ax_cv_PTHREAD_JOINABLE_ATTR=$attr; break
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
-        done
-        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $attr_name" >&5
-$as_echo "$attr_name" >&6; }
-        if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
+             done
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_JOINABLE_ATTR" >&5
+$as_echo "$ax_cv_PTHREAD_JOINABLE_ATTR" >&6; }
+        if test "$ax_cv_PTHREAD_JOINABLE_ATTR" != unknown && \
+               test "$ax_cv_PTHREAD_JOINABLE_ATTR" != PTHREAD_CREATE_JOINABLE; then :
 
 cat >>confdefs.h <<_ACEOF
-#define PTHREAD_CREATE_JOINABLE $attr_name
+#define PTHREAD_CREATE_JOINABLE $ax_cv_PTHREAD_JOINABLE_ATTR
 _ACEOF
 
-        fi
+fi
 
         { $as_echo "$as_me:${as_lineno-$LINENO}: checking if more special flags are required for pthreads" >&5
 $as_echo_n "checking if more special flags are required for pthreads... " >&6; }
-        flag=no
-        case ${host_os} in
-            aix* | freebsd* | darwin*) flag="-D_THREAD_SAFE";;
-            osf* | hpux*) flag="-D_REENTRANT";;
-            solaris*)
-            if test "$GCC" = "yes"; then
-                flag="-D_REENTRANT"
-            else
-                # TODO: What about Clang on Solaris?
-                flag="-mt -D_REENTRANT"
-            fi
-            ;;
-        esac
-        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $flag" >&5
-$as_echo "$flag" >&6; }
-        if test "x$flag" != xno; then
-            PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
-        fi
+if ${ax_cv_PTHREAD_SPECIAL_FLAGS+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ax_cv_PTHREAD_SPECIAL_FLAGS=no
+             ax_pthread_special_flags_added=no
+             cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#                 if !defined(_REENTRANT) && !defined(_THREAD_SAFE)
+                  AX_PTHREAD_NEED_SPECIAL_FLAG
+#                 endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "AX_PTHREAD_NEED_SPECIAL_FLAG" >/dev/null 2>&1; then :
+  case $host_os in
+                  aix* | freebsd*)
+                  ax_cv_PTHREAD_SPECIAL_FLAGS="-D_THREAD_SAFE"
+                  ;;
+                  darwin* | hpux* | osf* | solaris*)
+                  ax_cv_PTHREAD_SPECIAL_FLAGS="-D_REENTRANT"
+                  ;;
+                  esac
+
+fi
+rm -f conftest*
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_SPECIAL_FLAGS" >&5
+$as_echo "$ax_cv_PTHREAD_SPECIAL_FLAGS" >&6; }
+        if test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \
+               test "x$ax_pthread_special_flags_added" != "xyes"; then :
+  PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS"
+               ax_pthread_special_flags_added=yes
+fi
 
         { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PTHREAD_PRIO_INHERIT" >&5
 $as_echo_n "checking for PTHREAD_PRIO_INHERIT... " >&6; }
 if ${ax_cv_PTHREAD_PRIO_INHERIT+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-
-                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <pthread.h>
 int
@@ -19438,101 +20022,17 @@ $as_echo "#define HAVE_PTHREAD 1" >>confdefs.h
 
         :
 else
-        ax_pthread_ok=no
-
-fi
-ac_ext=cpp
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-
-
-
-
-
-for cy_arch in ppc ppc64 i386 x86_64 armv6 arm64; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -arch $cy_arch" >&5
-$as_echo_n "checking for -arch $cy_arch... " >&6; }
-
-    cy_save=$CXXFLAGS
-
-  for element in "-arch $cy_arch"; do
-    haveit=
-    for x in $CXXFLAGS; do
-
-  acl_save_prefix="$prefix"
-  prefix="$acl_final_prefix"
-  acl_save_exec_prefix="$exec_prefix"
-  exec_prefix="$acl_final_exec_prefix"
-  eval x=\"$x\"
-  exec_prefix="$acl_save_exec_prefix"
-  prefix="$acl_save_prefix"
-
-      if test "X$x" = "X$element"; then
-        haveit=yes
-        break
-      fi
-    done
-    if test -z "$haveit"; then
-      CXXFLAGS="${CXXFLAGS}${CXXFLAGS:+ }$element"
-    fi
-  done
-
-
-        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_cxx_try_link "$LINENO"; then :
-  cy_good=1
-else
-  cy_good=0
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-
-    CXXFLAGS=$cy_save
-    if test "x$cy_good" = x1; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-
-  for element in "-arch $cy_arch"; do
-    haveit=
-    for x in $CY_ARCH; do
-
-  acl_save_prefix="$prefix"
-  prefix="$acl_final_prefix"
-  acl_save_exec_prefix="$exec_prefix"
-  exec_prefix="$acl_final_exec_prefix"
-  eval x=\"$x\"
-  exec_prefix="$acl_save_exec_prefix"
-  prefix="$acl_save_prefix"
-
-      if test "X$x" = "X$element"; then
-        haveit=yes
-        break
-      fi
-    done
-    if test -z "$haveit"; then
-      CY_ARCH="${CY_ARCH}${CY_ARCH:+ }$element"
-    fi
-  done
-
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+        ax_pthread_ok=no
+
 fi
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
 
-done
 
 
 
@@ -20364,6 +20864,20 @@ else
 fi
 
 
+# Check whether --enable-attach was given.
+if test "${enable_attach+set}" = set; then :
+  enableval=$enable_attach;
+fi
+
+ if test "x$enable_attach" != "xno" -a "x$CY_EXECUTE" = x1; then
+  CY_ATTACH_TRUE=
+  CY_ATTACH_FALSE='#'
+else
+  CY_ATTACH_TRUE='#'
+  CY_ATTACH_FALSE=
+fi
+
+
 
 
  if test "x$CY_EXECUTE" = x1; then
@@ -21302,328 +21816,6 @@ fi
 SO=$acl_shlibext
 
 
-if test "x$CY_EXECUTE" = x1; then :
-
-    ac_fn_cxx_check_header_mongrel "$LINENO" "mach/mach.h" "ac_cv_header_mach_mach_h" "$ac_includes_default"
-if test "x$ac_cv_header_mach_mach_h" = xyes; then :
-
-        if test -n "$ac_tool_prefix"; then
-  for ac_prog in lipo
-  do
-    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
-set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog__LIPO+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$_LIPO"; then
-  ac_cv_prog__LIPO="$_LIPO" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog__LIPO="$ac_tool_prefix$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-_LIPO=$ac_cv_prog__LIPO
-if test -n "$_LIPO"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $_LIPO" >&5
-$as_echo "$_LIPO" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-    test -n "$_LIPO" && break
-  done
-fi
-if test -z "$_LIPO"; then
-  ac_ct__LIPO=$_LIPO
-  for ac_prog in lipo
-do
-  # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct__LIPO+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct__LIPO"; then
-  ac_cv_prog_ac_ct__LIPO="$ac_ct__LIPO" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_ac_ct__LIPO="$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct__LIPO=$ac_cv_prog_ac_ct__LIPO
-if test -n "$ac_ct__LIPO"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct__LIPO" >&5
-$as_echo "$ac_ct__LIPO" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-  test -n "$ac_ct__LIPO" && break
-done
-
-  if test "x$ac_ct__LIPO" = x; then
-    _LIPO="as_fn_error $? "missing \"lipo\"" "$LINENO" 5"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    _LIPO=$ac_ct__LIPO
-  fi
-fi
-
-        if test -n "$ac_tool_prefix"; then
-  for ac_prog in nm
-  do
-    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
-set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog__NM+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$_NM"; then
-  ac_cv_prog__NM="$_NM" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog__NM="$ac_tool_prefix$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-_NM=$ac_cv_prog__NM
-if test -n "$_NM"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $_NM" >&5
-$as_echo "$_NM" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-    test -n "$_NM" && break
-  done
-fi
-if test -z "$_NM"; then
-  ac_ct__NM=$_NM
-  for ac_prog in nm
-do
-  # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct__NM+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct__NM"; then
-  ac_cv_prog_ac_ct__NM="$ac_ct__NM" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_ac_ct__NM="$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct__NM=$ac_cv_prog_ac_ct__NM
-if test -n "$ac_ct__NM"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct__NM" >&5
-$as_echo "$ac_ct__NM" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-  test -n "$ac_ct__NM" && break
-done
-
-  if test "x$ac_ct__NM" = x; then
-    _NM="as_fn_error $? "missing \"nm\"" "$LINENO" 5"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    _NM=$ac_ct__NM
-  fi
-fi
-
-        if test -n "$ac_tool_prefix"; then
-  for ac_prog in otool
-  do
-    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
-set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog__OTOOL+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$_OTOOL"; then
-  ac_cv_prog__OTOOL="$_OTOOL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog__OTOOL="$ac_tool_prefix$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-_OTOOL=$ac_cv_prog__OTOOL
-if test -n "$_OTOOL"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $_OTOOL" >&5
-$as_echo "$_OTOOL" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-    test -n "$_OTOOL" && break
-  done
-fi
-if test -z "$_OTOOL"; then
-  ac_ct__OTOOL=$_OTOOL
-  for ac_prog in otool
-do
-  # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct__OTOOL+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct__OTOOL"; then
-  ac_cv_prog_ac_ct__OTOOL="$ac_ct__OTOOL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_ac_ct__OTOOL="$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct__OTOOL=$ac_cv_prog_ac_ct__OTOOL
-if test -n "$ac_ct__OTOOL"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct__OTOOL" >&5
-$as_echo "$ac_ct__OTOOL" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-  test -n "$ac_ct__OTOOL" && break
-done
-
-  if test "x$ac_ct__OTOOL" = x; then
-    _OTOOL="as_fn_error $? "missing \"otool\"" "$LINENO" 5"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    _OTOOL=$ac_ct__OTOOL
-  fi
-fi
-
-        CY_ATTACH_GROUP=procmod
-
-        CY_MACH=1
-
-fi
-
-
-fi
- if test "x$CY_MACH" = x1; then
-  CY_MACH_TRUE=
-  CY_MACH_FALSE='#'
-else
-  CY_MACH_TRUE='#'
-  CY_MACH_FALSE=
-fi
-
-
 ac_config_files="$ac_config_files Makefile"
 
 cat >confcache <<\_ACEOF
@@ -21775,6 +21967,10 @@ if test -z "${CY_CONSOLE_TRUE}" && test -z "${CY_CONSOLE_FALSE}"; then
   as_fn_error $? "conditional \"CY_CONSOLE\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
+if test -z "${CY_ATTACH_TRUE}" && test -z "${CY_ATTACH_FALSE}"; then
+  as_fn_error $? "conditional \"CY_ATTACH\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
 if test -z "${CY_EXECUTE_TRUE}" && test -z "${CY_EXECUTE_FALSE}"; then
   as_fn_error $? "conditional \"CY_EXECUTE\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
@@ -21787,10 +21983,6 @@ if test -z "${CY_OBJECTIVEC_TRUE}" && test -z "${CY_OBJECTIVEC_FALSE}"; then
   as_fn_error $? "conditional \"CY_OBJECTIVEC\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
-if test -z "${CY_MACH_TRUE}" && test -z "${CY_MACH_FALSE}"; then
-  as_fn_error $? "conditional \"CY_MACH\" was never defined.
-Usually this means the macro was only invoked conditionally." "$LINENO" 5
-fi
 
 : "${CONFIG_STATUS=./config.status}"
 ac_write_fail=0