* Bruno Haible wrote on Sat, Apr 02, 2011 at 01:37:27AM CEST:
> There's also a problem when the set of macros defined in .m4 files changes.
> Then 'autoconf' complains.
> $ ./gnulib-tool --create-testdir --dir=/tmp/testdir wchar
> $ cd /tmp/testdir
> $ configure
> $ make
> $ gnulib-tool --source-base=gllib --m4-base=glm4 --add-import iswblank
> $ make
> $ gnulib-tool --source-base=gllib --m4-base=glm4 --remove-import iswblank
> $ make
> CDPATH="${ZSH_VERSION+.}:" && cd . && /bin/sh /tmp/testdir/build-aux/missing
> --run aclocal-1.11 -I glm4
> cd . && /bin/sh /tmp/testdir/build-aux/missing --run automake-1.11 --foreign
> CDPATH="${ZSH_VERSION+.}:" && cd . && /bin/sh /tmp/testdir/build-aux/missing
> --run autoconf
> configure:4572: error: possibly undefined macro: gl_NEXT_HEADERS
This is a bug in gnulib-tool. --remove-import may not remove
include_next.m4 (and others) because it is still used by wchar
(directly or indirectly).
We fixed the "deleted header file problem" for *.m4 files in
Automake 1.11.
Cheers,
Ralf
