Remove no longer needed macro.

m4/acx_c_check_sizeof_gt_relation.m4

-dnl
-dnl Copyright  (C)  2010  Thomas Jahns <jahns@dkrz.de>
-dnl
-dnl Version: 1.0
-dnl Keywords: configure configure.ac autotools
-dnl Author: Thomas Jahns <jahns@dkrz.de>
-dnl Maintainer: Thomas Jahns <jahns@dkrz.de>
-dnl URL: https://www.dkrz.de/redmine/projects/scales-ppm
-dnl
-dnl Redistribution and use in source and binary forms, with or without
-dnl modification, are  permitted provided that the following conditions are
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-dnl Redistributions of source code must retain the above copyright notice,
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-dnl Redistributions in binary form must reproduce the above copyright
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-dnl PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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-dnl SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-dnl
-dnl Commentary:
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-dnl
-dnl
-dnl Code:
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-dnl ACX_CHECK_SIZEOF_RELATION(TYPE_A, TYPE_B)
-dnl sets C_SIZEOF_TYPE_A_IS_GREATER_THAN_SIZEOF_TYPE_B to 1 or 0
-dnl depending on actual relation
-AC_DEFUN([ACX_CHECK_SIZEOF_RELATION],
-  [AS_VAR_PUSHDEF([sizeof_type_a], [ac_cv_sizeof_$1])
-   AS_VAR_PUSHDEF([sizeof_type_b], [ac_cv_sizeof_$2])
-   AC_CHECK_SIZEOF([$1])
-   AC_CHECK_SIZEOF([$2])
-   AC_MSG_CHECKING([if sizeof($1) is greater than sizeof($2)])
-   AS_IF([test AS_VAR_GET([sizeof_type_a]) -gt AS_VAR_GET([sizeof_type_b])],
-     [AS_TR_CPP([C_$1_IS_LARGER_THAN_$2])=1
-      AC_MSG_RESULT([yes])],
-     [AS_TR_CPP([C_$1_IS_LARGER_THAN_$2])=0
-      AC_MSG_RESULT([no])])
-   AC_SUBST(AS_TR_CPP([C_$1_IS_LARGER_THAN_$2]))])
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-dnl Local Variables:
-dnl license-project-url: "https://www.dkrz.de/redmine/projects/scales-ppm"
-dnl license-default: "bsd"
-dnl mode: autoconf
-dnl End: