[rtems-source-builder commit] sb: Change default prefix

[Sebastian Huber]

Module:    rtems-source-builder
Branch:    master
Commit:    d523d4c9d6521fc2786d1f30f8a7075932c79547
Changeset: http://git.rtems.org/rtems-source-builder/commit/?id=d523d4c9d6521fc2786d1f30f8a7075932c79547

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Thu Jan 17 11:32:45 2019 +0100

sb: Change default prefix

Use OS prefix + "rtems" + $rtems_version as the default prefix to
automatically separate different RTEMS versions.

Close #3675.

---

 source-builder/sb/options.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/source-builder/sb/options.py b/source-builder/sb/options.py
index f6963ac..ae67eeb 100644
--- a/source-builder/sb/options.py
+++ b/source-builder/sb/options.py
@@ -310,6 +310,12 @@ class command_line:
         # Must have a host
         if self.defaults['_build'] == self.defaults['nil']:
             raise error.general('--build not set')
+        # Default prefix
+        prefix = self.parse_args('--prefix')
+        if prefix is None:
+            value = path.join(self.defaults['_prefix'], 'rtems', str(self.defaults['rtems_version']))
+            self.opts['prefix'] = value
+            self.defaults['_prefix'] = value
         # Manage the regression option
         if self.opts['regression'] != '0':
             self.opts['no-install'] = '1'