[jhbuild] waf: Support install with DESTDIR

[Colin Walters <walters src gnome org>]

commit 76dbb7f62e7a1c48154f0b86ff916390186fed31
Author: Colin Walters <walters verbum org>
Date:   Tue May 24 20:26:40 2011 -0400

    waf: Support install with DESTDIR
    
    Similar to autotools.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=647231

 jhbuild/modtypes/waf.py |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/jhbuild/modtypes/waf.py b/jhbuild/modtypes/waf.py
index c62106d..e12b16c 100644
--- a/jhbuild/modtypes/waf.py
+++ b/jhbuild/modtypes/waf.py
@@ -49,6 +49,7 @@ class WafModule(Package, DownloadableModule):
         Package.__init__(self, name, dependencies, after, suggests)
         self.branch = branch
         self.waf_cmd = waf_cmd
+        self.supports_install_destdir = True
 
     def get_srcdir(self, buildscript):
         return self.branch.srcdir
@@ -127,9 +128,10 @@ class WafModule(Package, DownloadableModule):
 
     def do_install(self, buildscript):
         buildscript.set_action(_('Installing'), self)
-        cmd = [self.waf_cmd, 'install']
+        destdir = self.prepare_installroot(buildscript)
+        cmd = [self.waf_cmd, 'install', '--destdir', destdir]
         buildscript.execute(cmd, cwd=self.get_builddir(buildscript))
-        buildscript.packagedb.add(self.name, self.get_revision() or '')
+        self.process_install(buildscript, self.get_revision())
     do_install.depends = [PHASE_BUILD]
 
     def do_uninstall(self, buildscript):