Mercurial > gnulib
changeset 17588:b1b3e9794cf9
include_next: port to autoconf 2.63
On RHEL 6.4 (using autoconf 2.63), './gnulib-tool --test math'
fails with the following, since commit 74540d44:
executing autoconf
configure:5693: error: possibly undefined macro: AS_VAR_COPY
If this token and others are legitimate, please use m4_pattern_allow.
See the Autoconf documentation.
Since we document that we support out-of-the-box use with autoconf
2.59 and later, the fix is to provide a fallback definition.
* m4/gnulib-common.m4 (AS_VAR_COPY): Define if missing.
Signed-off-by: Eric Blake <eblake@redhat.com>
| author | Eric Blake <eblake@redhat.com> |
|---|---|
| date | Mon, 06 Jan 2014 10:20:59 -0700 |
| parents | 386365d65046 |
| children | cf3953712ce1 |
| files | ChangeLog m4/gnulib-common.m4 |
| diffstat | 2 files changed, 10 insertions(+), 1 deletions(-) [+] |
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--- a/ChangeLog Sat Jan 04 10:50:45 2014 -0800 +++ b/ChangeLog Mon Jan 06 10:20:59 2014 -0700 @@ -1,3 +1,8 @@ +2014-01-06 Eric Blake <eblake@redhat.com> + + include_next: port to autoconf 2.63 + * m4/gnulib-common.m4 (AS_VAR_COPY): Define if missing. + 2014-01-04 Jim Meyering <meyering@fb.com> maint: add a gnulib-local rule to keep non-ascii out of .texi files
--- a/m4/gnulib-common.m4 Sat Jan 04 10:50:45 2014 -0800 +++ b/m4/gnulib-common.m4 Mon Jan 06 10:20:59 2014 -0700 @@ -1,4 +1,4 @@ -# gnulib-common.m4 serial 33 +# gnulib-common.m4 serial 34 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_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])])