goankur commented on PR #13572:
URL: https://github.com/apache/lucene/pull/13572#issuecomment-2266340565
> java --enable-native-access=ALL-UNNAMED \
> --enable-preview \
> -Djava.library.path="./lucene/core/build/libs/dotProduct/shared" \
> -jar
lucene/benchmark-jmh/build/benchmarks/lucene-benchmark-jmh-10.0.0-SNAPSHOT.jar \
> regexp "(.*)?(binaryDotProductVector|dot8s)"
> That is the fault of your graviton setup though, you can see it right in
your previous `platforms` logic where it is invoking `cCompiler.executable
'gcc10-cc'`.
>
> Fix GCC to be in path correctly and things will work.
Ok, So I tried exporting the `CC` environment variable and cleared gradle's
config cache by executing `./gradlew clean` but the I still get the same
compilation error:
```
...
Tool chain 'gcc' (GNU GCC):
- Don't know how to build for platform 'linux_aarch64'.
...
```
Seems like `CC` environment variable is not being honored.
From [Gradle's
documentation](https://docs.gradle.org/current/userguide/native_software.html#native_binaries:tool_chain)
:
```
So for GCC running on linux, the supported target platforms are 'linux/x86'
and 'linux/x86_64'.
For GCC running on Windows via Cygwin, platforms 'windows/x86' and
'windows/x86_64' are supported.
(The Cygwin POSIX runtime is not yet modelled as part of the platform, but
will be in the future.)
If no target platforms are defined for a project, then all binaries are
built to target a default platform
named 'current'. This default platform does not specify any architecture or
operatingSystem value,
hence using the default values of the first available tool chain.
```
I could be misinterpreting things but judging by the error, gradle's default
toolchain pick - `gcc` does not know how to build for target platform -
`linux_aarch64`. To fix this problem this the best I could do (also reflected
in latest commit)
```
toolChains {
gcc(Gcc) {
target("linux_aarch64") {
cCompiler.executable = System.getenv("CC")
}
}
clang(Clang) {
target("osx_aarch64"){
cCompiler.executable = System.getenv("CC")
}
}
}
```
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