The project properties were missing several tabs in the "switches"
sections, but it wasn't immediately obvious why. It turns out that this
was caused by a missing generated file (gnat_switches.py). Restoring
that file along with having PATH set to the Ada compiler restored the
missing tabs.
The trick is that the generated file needs a texi file that is not present
in the distfile. The texi file was discarded by gnat_util (and its parent
gccX), so the solution is change gnat_util to install the file at its own
DOCDIR. Pregeneration of the gnat_switches.py is a bad idea IMO, so we
stick with the intended generation.
while here, install gps as gps_exe and create a wrapper named "gps" that
will define ADA_PROJECT_PATH and a PATH component to the Ada compiler if
they aren't already defined. GPS malfunctions a bit if it can't find the
compiler or standard library project files. Using a wrapper is nice for
new users that don't realize environmental changes are needed.
I also changed the install scripts to use BSD_INSTALL_* macros which
eliminated the need to use the install-strip INSTALL_TARGET.
Finally -- it seems that the ADAXX trick to pull in gcc-aux's versioning
for the PORTREVISION stopped working recently although the PORTVERSION
still worked. There's a new catch-22 where <pre> was needed to evaluate
USES=ada, but if <pre> is called, PORTREVISION value is frozen. Failure
to use <pre> resulted in an inclusion failure. The only fix available
was to recreate the ada.mk logic. Since gnatdroid is still hardcoded to
gcc-aux, only gnat_util was affected (discovered when poudriere failed
to rebuild it).
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