Make sure we don't use binary on EmptyType with lief (#4900)

Co-authored-by: Jannis Leidel <jannis@leidel.info>

conda_build/os_utils/liefldd.py

@@ -232,6 +232,8 @@ def get_runpaths_or_rpaths_raw(file):
 
 def set_rpath(old_matching, new_rpath, file):
     binary = ensure_binary(file)
+    if not binary:
+        return
     if binary.format == lief.EXE_FORMATS.ELF and (
         binary.type == lief.ELF.ELF_CLASS.CLASS32
         or binary.type == lief.ELF.ELF_CLASS.CLASS64
@@ -343,7 +345,9 @@ def _get_path_dirs(prefix):
 
 def get_uniqueness_key(file):
     binary = ensure_binary(file)
-    if binary.format == lief.EXE_FORMATS.MACHO:
+    if not binary:
+        return lief.EXE_FORMATS.UNKNOWN
+    elif binary.format == lief.EXE_FORMATS.MACHO:
         return binary.name
     elif binary.format == lief.EXE_FORMATS.ELF and (  # noqa
         binary.type == lief.ELF.ELF_CLASS.CLASS32
@@ -463,7 +467,9 @@ def inspect_linkages_lief(
     sysroot = _trim_sysroot(sysroot)
 
     default_paths = []
-    if binary.format == lief.EXE_FORMATS.ELF:
+    if not binary:
+        default_paths = []
+    elif binary.format == lief.EXE_FORMATS.ELF:
         if binary.type == lief.ELF.ELF_CLASS.CLASS64:
             default_paths = [
                 "$SYSROOT/lib64",
@@ -491,6 +497,8 @@ def inspect_linkages_lief(
             filename2 = element[0]
             binary = element[1]
             uniqueness_key = get_uniqueness_key(binary)
+            if not binary:
+                continue
             if uniqueness_key not in already_seen:
                 parent_exe_dirname = None
                 if binary.format == lief.EXE_FORMATS.PE:

news/4787-fix-leaf

@@ -0,0 +1,19 @@
+### Enhancements
+
+* <news item>
+
+### Bug fixes
+
+* Fixed handling of unknown binaries with newer (py)lief versions. (#4900)
+
+### Deprecations
+
+* <news item>
+
+### Docs
+
+* <news item>
+
+### Other
+
+* <news item>