--- pytables/setup.py.orig	2023-01-18 07:08:12.320883779 +0000

+++ pytables/setup.py	2023-02-03 06:57:04.258213973 +0000

@@ -262,11 +262,9 @@ if __name__ == "__main__":

     debug = "--debug" in sys.argv

-    blosc2_inc, blosc2_lib = get_blosc2_directories()

-

     # Global variables

-    lib_dirs = [blosc2_lib]

-    inc_dirs = [Path("hdf5-blosc/src"), Path("hdf5-blosc2/src"), blosc2_inc]

+    lib_dirs = []

+    inc_dirs = [Path("hdf5-blosc/src"), Path("hdf5-blosc2/src")]

     optional_libs = []

     copy_libs = []

@@ -274,6 +272,15 @@ if __name__ == "__main__":

     default_library_dirs = None

     default_runtime_dirs = None

+    blosc2_inc = blosc2_lib = None

+    if os.environ.get("PYTABLES_NO_BLOSC2_WHEEL", None) is None:

+        try:

+            blosc2_inc, blosc2_lib = get_blosc2_directories()

+            lib_dirs.append(blosc2_lib)

+            inc_dirs.append(blosc2_inc)

+        except EnvironmentError:

+            pass

+

     if os.name == "posix":

         prefixes = ("/usr/local", "/sw", "/opt", "/opt/local", "/usr", "/")

         prefix_paths = [Path(x) for x in prefixes]

@@ -691,7 +698,7 @@ if __name__ == "__main__":

     # Try to locate the compulsory and optional libraries.

     lzo2_enabled = False

     compiler = new_compiler()

-    if not BLOSC2_DIR:

+    if not BLOSC2_DIR and blosc2_inc is not None:

         # Inject the blosc2 directory as detected

         BLOSC2_DIR = os.path.dirname(blosc2_inc)

     for (package, location) in [