[PATCH 1/1] compat: handle user errors gracefully to avoid parser splat

["'Felix Moessbauer' via isar-users" <isar-users@googlegroups.com>]

A common user error is to forget to define a machine (or use one that is
not defined). In this case, a huge parsing error is printed, giving no
indication what the actually user error is. Instead of crashing the
parser, we now report a meaningful user error.

Signed-off-by: Felix Moessbauer <felix.moessbauer@siemens.com>
---
Dear maintainers,

I recommend to include this patch in the upcoming release.

Best regards,
Felix

 meta/classes-recipe/compat.bbclass | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/meta/classes-recipe/compat.bbclass b/meta/classes-recipe/compat.bbclass
index 907c3ce2..7df55576 100644
--- a/meta/classes-recipe/compat.bbclass
+++ b/meta/classes-recipe/compat.bbclass
@@ -19,6 +19,9 @@ python() {
     package_arch = d.getVar('PACKAGE_ARCH')
     overrides = d.getVar('OVERRIDES').split(':')
 
+    if not distro_arch:
+        bb.fatal("DISTRO_ARCH is not set")
+
     localdata = bb.data.createCopy(d)
     new_overrides = [distro_arch] + [o for o in overrides if not o == package_arch]
     localdata.setVar('OVERRIDES', ':'.join(new_overrides))
-- 
2.51.0

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