third_party/rocksdb: fix build, improve flags

Change-Id: I35cde0b8a74b57491dd019d17d7df60905c92180
Reviewed-on: https://git.firedancer.io/c/radiance/+/316

third_party/rocksdb/rocksdb.bzl

@@ -8,7 +8,24 @@ filegroup(
 cmake(
     name = "rocksdb",
     lib_source = "//:srcs",
+    out_lib_dir = "lib64",
     out_static_libs = ["librocksdb.a"],
     visibility = ["//visibility:public"],
-    build_args = ["--parallel `njobs`"],
+    build_args = ["--parallel 6"],
+    generate_args = ["-G Ninja"],
+    linkopts = ["-lz", "-lbz2", "-lsnappy", "-lzstd"],
+    cache_entries = {
+        "ROCKSDB_BUILD_SHARED": "OFF",
+        "WITH_BZ2": "ON",
+        "WITH_SNAPPY": "ON",
+        "WITH_ZLIB": "ON",
+        "WITH_ZSTD": "ON",
+        "WITH_ALL_TESTS": "OFF",
+        "WITH_BENCHMARK_TOOLS": "OFF",
+        "WITH_CORE_TOOLS": "OFF",
+        "WITH_RUNTIME_DEBUG": "OFF",
+        "WITH_TESTS": "OFF",
+        "WITH_TOOLS": "OFF",
+        "WITH_TRACE_TOOLS": "OFF",
+    },
 )