Add Accelerate framework blas__ldflags tests

Author: lucianopaz

pytensor/link/c/cmodule.py

@@ -2873,9 +2873,21 @@ def check_libs(
         )
     except Exception as e:
         _logger.debug(e)
+    try:
+        # 3. Mac Accelerate framework
+        _logger.debug("Checking Accelerate framework")
+        flags = ["-framework", "Accelerate"]
+        if rpath:
+            flags = [*flags, "-rpath", rpath]
+        validated_flags = try_blas_flag(flags)
+        if validated_flags == "":
+            raise Exception("Accelerate framework flag failed ")
+        return validated_flags
+    except Exception as e:
+        _logger.debug(e)
     try:
         _logger.debug("Checking Lapack + blas")
-        # 3. Try to use LAPACK + BLAS
+        # 4. Try to use LAPACK + BLAS
         return check_libs(
             all_libs,
             required_libs=["lapack", "blas", "cblas", "m"],
@@ -2885,7 +2897,7 @@ def check_libs(
     except Exception as e:
         _logger.debug(e)
     try:
-        # 4. Try to use BLAS alone
+        # 5. Try to use BLAS alone
         _logger.debug("Checking blas alone")
         return check_libs(
             all_libs,
@@ -2896,7 +2908,7 @@ def check_libs(
     except Exception as e:
         _logger.debug(e)
     try:
-        # 5. Try to use openblas
+        # 6. Try to use openblas
         _logger.debug("Checking openblas")
         return check_libs(
             all_libs,

pytensor/tensor/blas.py

@@ -79,6 +79,7 @@
 import logging
 import os
 import time
+from pathlib import Path
 
 import numpy as np
 
@@ -425,7 +426,7 @@ def _ldflags(
 
         try:
             t0, t1 = t[0], t[1]
-            assert t0 == "-"
+            assert t0 == "-" or t == "Accelerate" or Path(t).exists()
         except Exception:
             raise ValueError(f'invalid token "{t}" in ldflags_str: "{ldflags_str}"')
         if libs_dir and t1 == "L":