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30 lines
1.1 KiB
Plaintext
30 lines
1.1 KiB
Plaintext
# Copyright 2000 Free Software Foundation, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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# AC_PROG_GNU_M4
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# --------------
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# Check for GNU m4, at least 1.3 (supports frozen files).
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AC_DEFUN([AC_PROG_GNU_M4],
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[AC_PATH_PROGS(M4, gm4 gnum4 m4, m4)
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AC_CACHE_CHECK(whether m4 supports frozen files, ac_cv_prog_gnu_m4,
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[ac_cv_prog_gnu_m4=no
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if test x"$M4" != x; then
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case `$M4 --help < /dev/null 2>&1` in
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*reload-state*) ac_cv_prog_gnu_m4=yes ;;
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esac
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fi])])
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