pgsql: Make sure sharedir/extension/ directory is created when needed.

Make sure sharedir/extension/ directory is created when needed.

The previous coding worked as long as MODULEDIR wasn't set explicitly,
because we create sharedir/$(datamoduledir) and the default value of
that is "extension".  But if some other value is specified for MODULEDIR
then the installation directory needed for the control file wasn't made.

Cédric Villemain

Branch
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REL9_2_STABLE

Details
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http://git.postgresql.org/pg/commitdiff/53a1c31237298e4aeedc4f9926678505bf417d94

Modified Files
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src/makefiles/pgxs.mk |    3 +++
1 files changed, 3 insertions(+), 0 deletions(-)