ICU-23190 Update configure files from configure.ac using autoreconf.

Author: roubert

icu4c/source/configure

@@ -686,8 +686,6 @@ U_HAVE_TZNAME
 U_TZSET
 U_HAVE_TZSET
 U_HAVE_POPEN
-U_HAVE_PLACEMENT_NEW
-U_OVERRIDE_CXX_ALLOCATION
 U_NL_LANGINFO_CODESET
 U_HAVE_NL_LANGINFO_CODESET
 U_IS_BIG_ENDIAN
@@ -2111,54 +2109,6 @@ printf "%s\n" "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_func
-
-# ac_fn_cxx_try_link LINENO
-# -------------------------
-# Try to link conftest.$ac_ext, and return whether this succeeded.
-ac_fn_cxx_try_link ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext conftest.beam conftest$ac_exeext
-  if { { ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
-  (eval "$ac_link") 2>conftest.err
-  ac_status=$?
-  if test -s conftest.err; then
-    grep -v '^ *+' conftest.err >conftest.er1
-    cat conftest.er1 >&5
-    mv -f conftest.er1 conftest.err
-  fi
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && {
-	 test -z "$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 test -x conftest$ac_exeext
-       }
-then :
-  ac_retval=0
-else case e in #(
-  e) printf "%s\n" "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_retval=1 ;;
-esac
-fi
-  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
-  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
-  # interfere with the next link command; also delete a directory that is
-  # left behind by Apple's compiler.  We do this before executing the actions.
-  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-  as_fn_set_status $ac_retval
-
-} # ac_fn_cxx_try_link
 ac_configure_args_raw=
 for ac_arg
 do
@@ -7415,109 +7365,6 @@ 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
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for properly overriding new and delete" >&5
-printf %s "checking for properly overriding new and delete... " >&6; }
-U_OVERRIDE_CXX_ALLOCATION=0
-U_HAVE_PLACEMENT_NEW=0
-if test ${ac_cv_override_cxx_allocation_ok+y}
-then :
-  printf %s "(cached) " >&6
-else case e in #(
-  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdlib.h>
-    class UMemory {
-    public:
-    void *operator new(size_t size) {return malloc(size);}
-    void *operator new[](size_t size) {return malloc(size);}
-    void operator delete(void *p) {free(p);}
-    void operator delete[](void *p) {free(p);}
-    };
-
-int
-main (void)
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_cxx_try_link "$LINENO"
-then :
-  ac_cv_override_cxx_allocation_ok=yes
-else case e in #(
-  e) ac_cv_override_cxx_allocation_ok=no ;;
-esac
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext  ;;
-esac
-fi
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_override_cxx_allocation_ok" >&5
-printf "%s\n" "$ac_cv_override_cxx_allocation_ok" >&6; }
-if test $ac_cv_override_cxx_allocation_ok = yes
-then
-    U_OVERRIDE_CXX_ALLOCATION=1
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for placement new and delete" >&5
-printf %s "checking for placement new and delete... " >&6; }
-    if test ${ac_cv_override_placement_new_ok+y}
-then :
-  printf %s "(cached) " >&6
-else case e in #(
-  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdlib.h>
-        class UMemory {
-        public:
-        void *operator new(size_t size) {return malloc(size);}
-        void *operator new[](size_t size) {return malloc(size);}
-        void operator delete(void *p) {free(p);}
-        void operator delete[](void *p) {free(p);}
-        void * operator new(size_t, void *ptr) { return ptr; }
-        void operator delete(void *, void *) {}
-        };
-
-int
-main (void)
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_cxx_try_link "$LINENO"
-then :
-  ac_cv_override_placement_new_ok=yes
-else case e in #(
-  e) ac_cv_override_placement_new_ok=no ;;
-esac
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext  ;;
-esac
-fi
-
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_override_placement_new_ok" >&5
-printf "%s\n" "$ac_cv_override_placement_new_ok" >&6; }
-    if test $ac_cv_override_placement_new_ok = yes
-    then
-        U_HAVE_PLACEMENT_NEW=1
-    else
-        CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_PLACEMENT_NEW=0"
-    fi
-else
-    CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_OVERRIDE_CXX_ALLOCATION=0"
-fi
-
-
-
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'