[pgpool-committers: 135] pgpool: Add m4 files. This should prevent compiling problem on older

[Tatsuo Ishii]

Add m4 files. This should prevent compiling problem on older
OS's.

Branch
------
V3_1_STABLE

Details
-------
http://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=1cb6d44e045f1023cd4626a120ee3430d2e33bb6

Modified Files
--------------
.gitignore        |    1 -
m4/libtool.m4     | 7360 +++++++++++++++++++++++++++++++++++++++++++++++++++++
m4/ltoptions.m4   |  368 +++
m4/ltsugar.m4     |  123 +
m4/ltversion.m4   |   23 +
m4/lt~obsolete.m4 |   92 +
6 files changed, 7966 insertions(+), 1 deletions(-)