m4/compat.at

   1 # -*- autoconf -*-
   2
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at:
   6 #
   7 #     http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 m4_ifndef([AT_CHECK_UNQUOTED],
  16   [m4_define([AT_CHECK_UNQUOTED],
  17   [_AT_CHECK([$1], [$2], AS_ESCAPE(m4_dquote(m4_expand([$3])), [""]),
  18     AS_ESCAPE(m4_dquote(m4_expand([$4])),[""]), [$5], [$6])])])
  19
  20 m4_ifndef([AT_SKIP_IF],
  21   [m4_define([AT_SKIP_IF],
  22     [AT_CHECK([($1) \
  23     && exit 77 || exit 0], [0], [ignore], [ignore])])])
  24
  25 m4_ifndef([AT_FAIL_IF],
  26   [m4_define([AT_FAIL_IF],
  27     [AT_CHECK([($1) \
  28     && exit 99 || exit 0], [0], [ignore], [ignore])])])
  29
  30 m4_ifndef([AS_VAR_COPY],
  31   [m4_define([AS_VAR_COPY],
  32     [AS_LITERAL_IF([$1[]$2], [$1=$$2], [eval $1=\$$2])])])