+++ crypto/secp256k1/BUILD.bazel
--- crypto/secp256k1/BUILD.bazel
@@ -10,10 +10,13 @@
         "scalar_mult_nocgo.go",
         "secp256.go",
     ],
+    cdeps = [
+        "//crypto/secp256k1/libsecp256k1",
+    ],
     cgo = True,
     copts = [
-        "-Icrypto/secp256k1/libsecp256k1",
-        "-Icrypto/secp256k1/libsecp256k1/src",
+        "-Iexternal/com_github_ethereum_go_ethereum/crypto/secp256k1/libsecp256k1",
+        "-Iexternal/com_github_ethereum_go_ethereum/crypto/secp256k1/libsecp256k1/src",
     ],
     importpath = "github.com/ethereum/go-ethereum/crypto/secp256k1",
     visibility = ["//visibility:public"],

--- crypto/secp256k1/libsecp256k1/BUILD.bazel
--- crypto/secp256k1/libsecp256k1/BUILD.bazel
@@ -0,0 +1,11 @@
+cc_library(
+    name = "libsecp256k1",
+    hdrs = glob([
+        # .c files are included in hdrs because this target exists only to make
+        # the files available for cgo. If they were in srcs then they would be
+        # compiled, which would break without @rules_foreign_cc configure_make.
+        "**/*.c",
+        "**/*.h",
+    ]),
+    visibility = ["//crypto/secp256k1:__pkg__"],
+)