Always add faiss library alias if it's missing (rapidsai#287)

Always add the `FAISS::FAISS` library target alias if it doesn't exist. This can happen if cuML is built and installs FAISS before cuGraph or vice-versa.

Related PRs:
rapidsai/cuml#4028
rapidsai/cugraph#1694

Note: We can probably remove the `get_faiss.cmake` file in cuML and cuGraph since they both should get it from RAFT.

Authors:
  - Paul Taylor (https://github.com/trxcllnt)

Approvers:
  - Corey J. Nolet (https://github.com/cjnolet)
  - Dante Gama Dessavre (https://github.com/dantegd)

URL: rapidsai#287

Author: trxcllnt

cpp/cmake/thirdparty/get_faiss.cmake

@@ -40,7 +40,10 @@ function(find_and_configure_faiss)
 
     if(FAISS_ADDED)
       set(FAISS_GPU_HEADERS ${FAISS_SOURCE_DIR} PARENT_SCOPE)
-      add_library(FAISS::FAISS ALIAS faiss)
+    endif()
+
+    if(TARGET faiss AND NOT TARGET FAISS::FAISS)
+        add_library(FAISS::FAISS ALIAS faiss)
     endif()
 
 endfunction()

cpp/include/raft/sparse/cusparse_wrappers.h

@@ -55,7 +55,7 @@ namespace detail {
 inline const char* cusparse_error_to_string(cusparseStatus_t err) {
 #if defined(CUDART_VERSION) && CUDART_VERSION >= 10100
   return cusparseGetErrorString(err);
-#else   // CUDART_VERSION
+#else  // CUDART_VERSION
   switch (err) {
     _CUSPARSE_ERR_TO_STR(CUSPARSE_STATUS_SUCCESS);
     _CUSPARSE_ERR_TO_STR(CUSPARSE_STATUS_NOT_INITIALIZED);

cpp/scripts/run-clang-format.py

@@ -22,7 +22,7 @@
 import tempfile
 
 
-EXPECTED_VERSION = "8.0.1"
+EXPECTED_VERSION = "11.0.0"
 VERSION_REGEX = re.compile(r"clang-format version ([0-9.]+)")
 # NOTE: populate this list with more top-level dirs as we add more of them to
 #       to the cuml repo