move more AC_LIBOBJ invocations to the module descriptions

[Bruno Haible]

This patch moves some more AC_LIBOBJ invocations to the module descriptions,
following the principle that source file names don't belong in *.m4 files.

It's a preparation for the next patch, which will eliminate these AC_LIBOBJ
invocations from the module descriptions.

Some AC_LIBOBJ invocations still exist in the m4/*printf*.m4 files, but they
are more hairy to clean up.


2022-01-09  Bruno Haible  <bruno@clisp.org>

        obstack: Move AC_LIBOBJ invocation to the module description.
        * m4/obstack.m4 (gl_FUNC_OBSTACK): Renamed from AC_FUNC_OBSTACK. Don't
        invoke AC_LIBSOURCES nor AC_LIBOBJ.
        * modules/obstack (configure.ac): Update. Invoke AC_LIBOBJ here.

2022-01-09  Bruno Haible  <bruno@clisp.org>

        stdio: Move AC_LIBOBJ invocations to the module description.
        * m4/stdio_h.m4 (gl_STDIO_H): Don't invoke AC_LIBOBJ.
        * modules/stdio (configure.ac): Invoke AC_LIBOBJ here.

2022-01-09  Bruno Haible  <bruno@clisp.org>

        fchdir: Move AC_LIBOBJ invocation to the module description.
        * m4/fchdir.m4 (gl_FUNC_FCHDIR): Don't invoke AC_LIBOBJ and
        gl_PREREQ_FCHDIR.
        * modules/fchdir (configure.ac): Invoke AC_LIBOBJ and gl_PREREQ_FCHDIR.

0001-fchdir-Move-AC_LIBOBJ-invocation-to-the-module-descr.patch
Description: Text Data

0002-stdio-Move-AC_LIBOBJ-invocations-to-the-module-descr.patch
Description: Text Data

0003-obstack-Move-AC_LIBOBJ-invocation-to-the-module-desc.patch
Description: Text Data