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annotate m4/isblank.m4 @ 40196:e63f5d3edab5

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relocatable-prog: Update documentation. * doc/relocatable-maint.texi (Supporting Relocation): Update to match the recent changes.
author Bruno Haible <bruno@clisp.org>
date Sun, 24 Feb 2019 01:49:15 +0100
parents b06060465f09
children
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2f5bc02c2203 isblank: Move AC_LIBOBJ invocations to module description.
Bruno Haible <bruno@clisp.org>
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1 # isblank.m4 serial 3
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b06060465f09 maint: Run 'make update-copyright'
Paul Eggert <eggert@cs.ucla.edu>
parents: 19484
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2 dnl Copyright (C) 2009-2019 Free Software Foundation, Inc.
12184
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3 dnl This file is free software; the Free Software Foundation
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4 dnl gives unlimited permission to copy and/or distribute it,
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5 dnl with or without modifications, as long as this notice is preserved.
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6
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7 AC_DEFUN([gl_FUNC_ISBLANK],
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8 [
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9 dnl Persuade glibc <ctype.h> to declare isblank().
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10 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
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11
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12 AC_REQUIRE([gl_CTYPE_H_DEFAULTS])
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13 AC_CHECK_FUNCS_ONCE([isblank])
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14 if test $ac_cv_func_isblank = no; then
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15 HAVE_ISBLANK=0
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16 fi
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17 ])