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Diffstat (limited to 'build-aux/m4/m4-error.m4')
| -rw-r--r-- | build-aux/m4/m4-error.m4 | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/build-aux/m4/m4-error.m4 b/build-aux/m4/m4-error.m4 new file mode 100644 index 00000000..27695cbb --- /dev/null +++ b/build-aux/m4/m4-error.m4 @@ -0,0 +1,41 @@ +# -*- Autoconf -*- +# m4-error.m4 -- Use the installed version of error.h if available. +# Written by Gary V. Vaughan <gary@gnu.org> +# +# Copyright (C) 2003-2004, 2006-2007, 2010, 2013 Free Software +# Foundation, Inc. +# +# This file is part of GNU M4. +# +# GNU M4 is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# GNU M4 is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +# serial 4 + +# M4_ERROR +# -------- +# Use the installed version of error.h if available. +AC_DEFUN([M4_ERROR], +[AC_BEFORE([gl_ERROR], [M4_ERROR]) + +AC_CHECK_HEADERS([error.h], + [ERROR_H=""], [ERROR_H="error.h"], [AC_INCLUDES_DEFAULT]) +AC_SUBST([ERROR_H]) + +if test $ac_cv_header_error_h = yes; then + INCLUDE_ERROR_H='#include <error.h>' +else + INCLUDE_ERROR_H='#include <gnu/error.h>' +fi +AC_SUBST([INCLUDE_ERROR_H]) +])# M4_ERROR |