[jhbuild] add attribute supports-non-srcdir-builds to cmake

[Craig Keogh <cskeogh src gnome org>]

commit 5ee85630873d0c5372d39d2beca8e470d505f10c
Author: Marcin Wojdyr <wojdyr gmail com>
Date:   Fri May 4 18:30:24 2012 +0100

    add attribute supports-non-srcdir-builds to cmake

 jhbuild/modtypes/cmake.py |    6 +++++-
 modulesets/moduleset.dtd  |    3 ++-
 2 files changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/jhbuild/modtypes/cmake.py b/jhbuild/modtypes/cmake.py
index 7ba4a33..b30ac6c 100644
--- a/jhbuild/modtypes/cmake.py
+++ b/jhbuild/modtypes/cmake.py
@@ -44,13 +44,14 @@ class CMakeModule(Package, DownloadableModule):
         Package.__init__(self, name, branch=branch)
         self.cmakeargs = cmakeargs
         self.makeargs  = makeargs
+        self.supports_non_srcdir_builds = True
         self.supports_install_destdir = True
 
     def get_srcdir(self, buildscript):
         return self.branch.srcdir
 
     def get_builddir(self, buildscript):
-        if buildscript.config.buildroot:
+        if buildscript.config.buildroot and self.supports_non_srcdir_builds:
             d = buildscript.config.builddir_pattern % (
                 self.branch.checkoutdir or self.branch.get_module_basename())
             return os.path.join(buildscript.config.buildroot, d)
@@ -140,6 +141,9 @@ class CMakeModule(Package, DownloadableModule):
 
 def parse_cmake(node, config, uri, repositories, default_repo):
     instance = CMakeModule.parse_from_xml(node, config, uri, repositories, default_repo)
+    if node.hasAttribute('supports-non-srcdir-builds'):
+        instance.supports_non_srcdir_builds = \
+                (node.getAttribute('supports-non-srcdir-builds') != 'no')
     if node.hasAttribute('cmakeargs'):
         instance.cmakeargs = node.getAttribute('cmakeargs')
     if node.hasAttribute('makeargs'):
diff --git a/modulesets/moduleset.dtd b/modulesets/moduleset.dtd
index 4b95eb0..2ab13cb 100644
--- a/modulesets/moduleset.dtd
+++ b/modulesets/moduleset.dtd
@@ -81,7 +81,8 @@
 <!ATTLIST cmake
 	id		CDATA	#REQUIRED
 	cmakeargs	CDATA	#IMPLIED
-	makeargs	CDATA	#IMPLIED>
+	makeargs	CDATA	#IMPLIED
+	supports-non-srcdir-builds (yes|no) "yes">
 
 <!ELEMENT perl (pkg-config?,branch?,dependencies?,after?)>
 <!ATTLIST perl