[PATCH 2/2] meta/base.bbclass: integrate COMPATIBLE_MACHINE feature

[Claudius Heine <ch@denx.de>]

Integrate the COMPATIBLE_MACHINE of OE, where recipes can specify a
regex in COMPATIBLE_MACHINE that needs to match to an entry of the
MACHINEOVERRIDES variable, otherwise the recipe will be skipped.

Similar to OE, with `PARSE_ALL_RECIPES`, parsing of the recipe can be
enforced.

This code was copied from the OE-core codebase.

Signed-off-by: Claudius Heine <ch@denx.de>
---
 meta/classes/base.bbclass | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/meta/classes/base.bbclass b/meta/classes/base.bbclass
index 17bebe94..68e88390 100644
--- a/meta/classes/base.bbclass
+++ b/meta/classes/base.bbclass
@@ -165,6 +165,16 @@ python() {
                 d.prependVar(
                     e, cleandir_code.format(ws=ws, dirlist=" ".join(dirs))
                 )
+
+    need_machine = d.getVar('COMPATIBLE_MACHINE')
+    if need_machine and not d.getVar('PARSE_ALL_RECIPES', False):
+        import re
+        compat_machines = (d.getVar('MACHINEOVERRIDES') or "").split(":")
+        for m in compat_machines:
+            if re.match(need_machine, m):
+                break
+        else:
+            raise bb.parse.SkipRecipe("incompatible with machine %s (not in COMPATIBLE_MACHINE)" % d.getVar('MACHINE'))
 }
 
 def isar_export_proxies(d):
-- 
2.30.2