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include_next: port to autoconf 2.63
[gnulib.git]
/
m4
/
gnulib-common.m4
diff --git
a/m4/gnulib-common.m4
b/m4/gnulib-common.m4
index
ae31e80
..
3b61b23
100644
(file)
--- a/
m4/gnulib-common.m4
+++ b/
m4/gnulib-common.m4
@@
-1,4
+1,4
@@
-# gnulib-common.m4 serial 3
3
+# gnulib-common.m4 serial 3
4
dnl Copyright (C) 2007-2014 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl Copyright (C) 2007-2014 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@
-375,3
+375,7
@@
AC_DEFUN([gl_CACHE_VAL_SILENT],
AC_CACHE_VAL([$1], [$2])
as_echo_n="$saved_as_echo_n"
])
AC_CACHE_VAL([$1], [$2])
as_echo_n="$saved_as_echo_n"
])
+
+# AS_VAR_COPY was added in autoconf 2.63b
+m4_define_default([AS_VAR_COPY],
+[AS_LITERAL_IF([$1[]$2], [$1=$$2], [eval $1=\$$2])])