Rename ENABLE_PYNVJITLINK for consistency

- As a config variable, it is called `CUDA_ENABLE_PYNVJITLINK`
- As an environment variable, it is `NUMBA_CUDA_ENABLE_PYNVJITLINK`

ci/test_conda_pynvjitlink.sh

@@ -69,7 +69,7 @@ popd
 
 
 rapids-logger "Run Tests"
-ENABLE_PYNVJITLINK=1 NUMBA_CUDA_TEST_BIN_DIR=$NUMBA_CUDA_TEST_BIN_DIR python -m numba.runtests numba.cuda.tests -v
+NUMBA_CUDA_ENABLE_PYNVJITLINK=1 NUMBA_CUDA_TEST_BIN_DIR=$NUMBA_CUDA_TEST_BIN_DIR python -m numba.runtests numba.cuda.tests -v
 
 popd
 

ci/test_wheel_pynvjitlink.sh

@@ -42,6 +42,6 @@ rapids-logger "Show Numba system info"
 python -m numba --sysinfo
 
 rapids-logger "Run Tests"
-ENABLE_PYNVJITLINK=1 NUMBA_CUDA_TEST_BIN_DIR=$NUMBA_CUDA_TEST_BIN_DIR python -m numba.runtests numba.cuda.tests -v
+NUMBA_CUDA_ENABLE_PYNVJITLINK=1 NUMBA_CUDA_TEST_BIN_DIR=$NUMBA_CUDA_TEST_BIN_DIR python -m numba.runtests numba.cuda.tests -v
 
 popd

numba_cuda/numba/cuda/cudadrv/driver.py

@@ -83,11 +83,11 @@ def _readenv(name, ctor, default):
 )
 
 ENABLE_PYNVJITLINK = (
-    _readenv("ENABLE_PYNVJITLINK", bool, False)
-    or getattr(config, "ENABLE_PYNVJITLINK", False)
+    _readenv("NUMBA_CUDA_ENABLE_PYNVJITLINK", bool, False)
+    or getattr(config, "CUDA_ENABLE_PYNVJITLINK", False)
 )
-if not hasattr(config, "ENABLE_PYNVJITLINK"):
-    config.ENABLE_PYNVJITLINK = ENABLE_PYNVJITLINK
+if not hasattr(config, "CUDA_ENABLE_PYNVJITLINK"):
+    config.CUDA_ENABLE_PYNVJITLINK = ENABLE_PYNVJITLINK
 
 if ENABLE_PYNVJITLINK:
     try:
@@ -100,7 +100,7 @@ def _readenv(name, ctor, default):
     if config.CUDA_ENABLE_MINOR_VERSION_COMPATIBILITY:
         raise ValueError(
             "Can't set CUDA_ENABLE_MINOR_VERSION_COMPATIBILITY and "
-            "ENABLE_PYNVJITLINK at the same time"
+            "CUDA_ENABLE_PYNVJITLINK at the same time"
         )
 
 
@@ -2612,13 +2612,13 @@ def new(cls,
             and driver_ver >= (12, 0)
         ):
             raise ValueError(
-                "Use ENABLE_PYNVJITLINK for CUDA >= 12.0 MVC"
+                "Use CUDA_ENABLE_PYNVJITLINK for CUDA >= 12.0 MVC"
             )
-        if config.ENABLE_PYNVJITLINK and driver_ver < (12, 0):
+        if config.CUDA_ENABLE_PYNVJITLINK and driver_ver < (12, 0):
             raise ValueError(
                 "Enabling pynvjitlink requires CUDA 12."
             )
-        if config.ENABLE_PYNVJITLINK:
+        if config.CUDA_ENABLE_PYNVJITLINK:
             linker = PyNvJitLinker
 
         elif config.CUDA_ENABLE_MINOR_VERSION_COMPATIBILITY:

numba_cuda/numba/cuda/tests/cudadrv/test_nvjitlink.py

@@ -35,7 +35,7 @@
 
 
 @unittest.skipIf(
-    not config.ENABLE_PYNVJITLINK or not TEST_BIN_DIR,
+    not config.CUDA_ENABLE_PYNVJITLINK or not TEST_BIN_DIR,
     "pynvjitlink not enabled"
 )
 @skip_on_cudasim("Linking unsupported in the simulator")