fix support of clang-15

bindgen/translation_unit.py

@@ -3,7 +3,7 @@
 
 from clang.cindex import TranslationUnit as TU
 
-from .utils import get_index, get_includes
+from .utils import get_index, get_includes, get_clang_version
 
 
 
@@ -34,7 +34,8 @@ def parse_tu(path,
     # if clang is configured with a system-wide config file, then some additional
     # unexpected headers might be added by the indexer during parsing and those ones will 
     # have a None filename location
-    args.append('--no-default-config')
+    if get_clang_version() > 15 :
+        args.append('--no-default-config')
 
     ix = get_index()
 
@@ -54,4 +55,4 @@ def parse_tu(path,
 
     tr_unit.path = ('dummy.cxx',path.name)
 
-    return tr_unit
+    return tr_unit

bindgen/utils.py

@@ -1,4 +1,5 @@
-from clang.cindex import Config, Index, Cursor
+from clang.cindex import Config, Index, Cursor, _CXString, register_function
+from clang.cindex import conf as confClang
 from ctypes import c_uint
 from path import Path
 from os import getenv
@@ -8,7 +9,7 @@
 
 initialized = False
 ix = None
-
+clangVersion = None
 
 def current_platform():
 
@@ -49,9 +50,19 @@ def get_includes(rv=[]):
 
     return rv
 
+def get_clang_version() :
+
+    global initialized,clangVersion
+
+    if not initialized: init_clang()
+
+    # clangVersion should be a string like "clang version MAJOR.MINOR.PATCH"
+    return int(clangVersion.split()[-1].split(".")[0])
+
+
 def init_clang(path=None):
 
-    global initialized,ix
+    global clangVersion,initialized,ix
 
     if not initialized:
         conda_prefix = Path(getenv('CONDA_PREFIX', ''))
@@ -67,6 +78,10 @@ def init_clang(path=None):
 
         Config.set_library_file(path)
 
+        item = ("clang_getClangVersion", [], _CXString, _CXString.from_result)
+        register_function(confClang.lib, item, False)
+        clangVersion = confClang.lib.clang_getClangVersion()
+
         # Monkeypatch clang
         monkeypatch_cursor('is_virtual',
                            'clang_isVirtualBase',