oe/lib/package: handle shlibs files disappearing

During a parallel build it's possible for unrelated shlib files to be removed if
the recipe they came from is about to be rebuilt.  They can't be involved in the
dependency chains as otherwise they wouldn't be removed, so just silently handle
files disappearing.

[ YOCTO #8555 ]

(From OE-Core rev: 1e355da3fda742c78d99ddd2ee5caa9df52f92e1)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oe/package.py

@@ -114,7 +114,12 @@ def read_shlib_providers(d):
             m = list_re.match(file)
             if m:
                 dep_pkg = m.group(1)
-                fd = open(os.path.join(dir, file))
+                try:
+                    fd = open(os.path.join(dir, file))
+                except IOError:
+                    # During a build unrelated shlib files may be deleted, so
+                    # handle files disappearing between the listdirs and open.
+                    continue
                 lines = fd.readlines()
                 fd.close()
                 for l in lines: