build: Make building of glupy more obvious

Yet again glupy..!!

Core changes:
* Provide --disable-glupy(instead of --enable-glupy) since we try to
  build it by default.
* AC_SUBST macro is considered/executed even if it is inside an if
  condition. As a result GLUPY_SUBDIR was always substituted which in
  turn would make compilation enter glupy/ translator sources in absence
  of python{2/3}-devel and fails.

Miscellaneous changes:
* Remove an explicit echo for printing PYTHON version.
* Replace hard coded python version in warning message displayed in
  absence of python{2/3}-devel.
* Redirect pushd and popd output to /dev/null

Change-Id: If1ba30a12a8bda5763ef528787fccb2f7946b136
Updates: bz#1193929
Signed-off-by: Anoop C S <anoopcs@redhat.com>

0 files changed, 0 insertions, 0 deletions