I finally got annoyed enough by multiple warnings from Autoconf and
Automake to fix them.
The first patch explicitly enables the subdir-objects option. This option
has been supported by automake for over a decade:
http://git.savannah.gnu.org/cgit/automake.git/commit/?id=88b595974744cad79fa4bc2492a796c6037eea49
The next 2 patches add brackets around AC_LANG_PROGRAM and avoid the same
warning. This is kept in separate commits because one of the files is from
an external source but I couldn't find an updated version of it. Squash
them if needed.
This warning is the result of an change in autoconf 2.68:
The macros AC_PREPROC_IFELSE, AC_COMPILE_IFELSE, AC_LINK_IFELSE, and
AC_RUN_IFELSE now warn if the first argument failed to use
AC_LANG_SOURCE or AC_LANG_PROGRAM to generate the conftest file
contents.
Source: https://lists.gnu.org/archive/html/autoconf/2010-09/msg00069.html
The last patch updates the ax_pthread.m4 file from the GNU Autoconf Archive
tarball and avoids the same warning as the last two patches.
poljar (Damir Jeli?) (4):
build: Enable subdir-objects option
build: Silence warning about missing AC_LANG_SOURCE call in
configure.ac
build: Silence warning about missing AC_LANG_SOURCE call in
acx_libwrap.m4
build: Update ax_pthread macro
configure.ac | 16 ++++++++--------
m4/acx_libwrap.m4 | 4 ++--
m4/ax_pthread.m4 | 47 +++++++++++++++++++++++++++++++----------------
3 files changed, 41 insertions(+), 26 deletions(-)
--
1.8.4
