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--- sw:yocto:bitbake:operators [2022/01/12 15:55] – created niziak
+++ sw:yocto:bitbake:operators [2022/09/09 12:43] (current) – niziak
@@ Line 11: / Line 11: @@
 Rethink usage of ''+='' and similar in local.conf. Example:
   * If ''+='' is parsed before ''?='', the latter will be omitted.
-  * **Solution**: use ''_append'' to unconditionally appends a value.
+  * **Solution**: use ''_append'' to unconditionally appends a value (but add space before value).
+====== SRC_URI_append ======
+When multiple ''.bbappend''s adds patches, order of patching is wrong.
+poky/meta/classes/patch.bbclass
+<code python>
+def src_patches(d, all=False, expand=True):
+    import oe.patch
+    return oe.patch.src_patches(d, all, expand)
+</code>
+poky/meta/lib/oe/patch.py
+<code python>
+def src_patches(d, all=False, expand=True):
+    fetch = bb.fetch2.Fetch([], d)
+    patches = []
+    sources = []
+    for url in fetch.urls:
+        local = patch_path(url, fetch, workdir, expand)
+        if not local:
+            if all:
+                local = fetch.localpath(url)
+                sources.append(local)
+            continue
+...
+        localurl = bb.fetch.encodeurl(('file', '', local, '', '', patchparm))
+        patches.append(localurl)
+    if all:
+        return sources
+    return patches
+</code>