Bazel include file not found - c++

Question

Edit (2022-05-28): for anyone who ends up here from searching for bazel + sfml, I gave up on trying to compile it from source with bazel.
Instead, I installed SFML with brew. Then in WORKSPACE.bazel:
new_local_repository(
name = "SFML",
path = "/opt/homebrew",
build_file = "third_party/SFML/BUILD.bazel"
)
and third_party/SFML/BUILD.bazel:
cc_library(
name = "sfml",
srcs = glob(["lib/libsfml-*.dylib"]),
hdrs = glob(["include/SFML/**/*.*"]),
include_prefix = "SFML",
strip_include_prefix = "include/SFML",
visibility = ["//visibility:public"],
)
finally, as a dependency in any BUILD.bazel:
cc_binary(
name = "main",
srcs = ["main.cc"],
deps = [
"#SFML//:sfml",
]
)
This allows me to #include <SFML/Graphics.hpp> for example in main.cc and so far it's working.
I'm trying to use bazel to build SFML from source and use it in a project. Right now I have a very simple setup:
foo/
src/
main.cc
BUILD
third_party/
SFML/
...
BUILD
BUILD
WORKSPACE
# third_party/SFML/BUILD
load("#rules_cc//cc:defs.bzl", "cc_library")
cc_library(
name = "sfml",
srcs = glob(["src/*.cpp"]),
hdrs = glob(["include/*.hpp"]),
copts = ["-Ithird_party/SFML/include"],
linkopts = [
"-lsfml‑system",
"-lsfml‑window",
"-lsfml‑graphics",
"-lsfml‑audio",
],
visibility = ["//visibility:public"]
)
# src/BUILD
load("#rules_cc//cc:defs.bzl", "cc_binary")
cc_binary(
name = "mygame",
srcs = ["main.cc"],
deps = [
"//third_party/SFML:sfml",
],
)
and main.cc:
#include "third_party/SFML/sfml/Graphics.hpp"
#include "third_party/SFML/sfml/System.hpp"
#include "third_party/SFML/sfml/Window.hpp"
int main() {
// ...
}
When I run bazel build //src:mygame I get an error:
fatal error: 'third_party/SFML/Graphics.hpp' file not found
I also tried using #include "third_party/SFML/Graphics.hpp" but that doesn't work either.
Not sure what the correct include path needs to be. Any suggestions?