Add hedron

Author: martin4861

examples/small_world/.bazelrc

@@ -10,3 +10,5 @@ coverage --combined_report=lcov
 build:cov_mac --repo_env=GCOV=/Library/Developer/CommandLineTools/usr/bin/llvm-profdata
 build:cov_mac --test_env=LLVM_COV=/Library/Developer/CommandLineTools/usr/bin/llvm-cov
 build:cov_mac --copt=-ffile-compilation-dir=.
+
+build:system-gcc --platforms=@rules_swiftnav//platforms:x86_64_linux_gcc11_system

examples/small_world/MODULE.bazel

@@ -20,11 +20,16 @@ use_repo(
 )
 
 register_toolchains(
+    # llvm14
     "@rules_swiftnav//cc/toolchains/llvm/aarch64-darwin:cc-toolchain-aarch64-darwin",
+    "@rules_swiftnav//cc/toolchains/llvm/x86_64-linux:cc-toolchain-x86_64-linux",
+    # llvm20
     "@rules_swiftnav//cc/toolchains/llvm20/aarch64-darwin:cc-toolchain-aarch64-darwin",
     "@rules_swiftnav//cc/toolchains/llvm20/x86_64-darwin:cc-toolchain-x86_64-darwin",
     "@rules_swiftnav//cc/toolchains/llvm20/aarch64-linux:cc-toolchain-aarch64-linux",
     "@rules_swiftnav//cc/toolchains/llvm20/x86_64-linux:cc-toolchain-x86_64-linux",
+    # system gcc
+    "@rules_swiftnav//cc/toolchains/system_gcc/gcc11_x86_64-linux:system-cc-toolchain-x86_64-linux",
 )
 
 bazel_dep(name = "eigen", version = "5.0.0")
@@ -38,3 +43,14 @@ bazel_dep(
     version = "8.2.0.2",
     dev_dependency = True,
 )
+
+# bazel run @hedron_compile_commands//:refresh_all
+# bazel run @hedron_compile_commands//:refresh_all -- --config=system-gcc
+bazel_dep(name = "hedron_compile_commands", dev_dependency = True)
+git_override(
+    module_name = "hedron_compile_commands",
+    commit = "4f28899228fb3ad0126897876f147ca15026151e",
+    remote = "https://github.com/hedronvision/bazel-compile-commands-extractor.git",
+    # Replace the commit hash (above) with the latest (https://github.com/hedronvision/bazel-compile-commands-extractor/commits/main).
+    # Even better, set up Renovate and let it do the work for you (see "Suggestion: Updates" in the README).
+)