Re: pgsql: Fix install program detection

Excerpts from Peter Eisentraut's message of mié jun 27 14:23:11 -0400 2012:
> Fix install program detection
>
> configure handles INSTALL as a substitution variable specially, and
> apparently it gets confused when it's set to empty.  Use INSTALL_
> instead as a workaround to avoid the issue.

Member grebe is still failing.  Interesting log lines:

/bin/sh ../../config/install-sh -c -d
'/opt/rg/data_dba/build-farm/HEAD/pgsql.401504/src/test/regress/./tmp_check/install/opt/rg/data_dba/build-farm/HEAD/inst/bin'
'/opt/rg/data_dba/build-farm/HEAD/pgsql.401504/src/test/regress/./tmp_check/install/opt/rg/data_dba/build-farm/HEAD/inst/share/postgresql'
/bin/sh ../../config/install-sh -c -d
'/opt/rg/data_dba/build-farm/HEAD/pgsql.401504/src/test/regress/./tmp_check/install/opt/rg/data_dba/build-farm/HEAD/inst/lib/postgresql'
postgres
'/opt/rg/data_dba/build-farm/HEAD/pgsql.401504/src/test/regress/./tmp_check/install/opt/rg/data_dba/build-farm/HEAD/inst/bin/postgres'
gmake[3]: postgres: Command not found
gmake[3]: *** [install-bin] Error 127

Evidently the logic to set INSTALL_PROGRAM is wrong on that platform ...

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Álvaro Herrera <alvherre@commandprompt.com>
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