Update Bazel to v5.0.0.

.bazelversion

@@ -1 +1 @@
-4.2.2
+5.0.0

.github/workflows/cpp.yml

@@ -103,14 +103,14 @@ jobs:
           os: ubuntu-20.04
           arch: aarch64
           action: build
-          run_under: docker run --rm --env HOME=$HOME --env USER=$(id -un) --volume "$HOME:$HOME" --workdir $(pwd) --user $(id -u):$(id -g) --platform linux/arm64 piotrsikora/build-tools:bazel-4.2.2-clang-13-gcc-11
+          run_under: docker run --rm --env HOME=$HOME --env USER=$(id -un) --volume "$HOME:$HOME" --workdir $(pwd) --user $(id -u):$(id -g) --platform linux/arm64 piotrsikora/build-tools:bazel-5.0.0-clang-13-gcc-11
         - name: 'Wasmtime on Linux/s390x'
           runtime: 'wasmtime'
           repo: 'com_github_bytecodealliance_wasmtime'
           os: ubuntu-20.04
           arch: s390x
           action: build
-          run_under: docker run --rm --env HOME=$HOME --env USER=$(id -un) --volume "$HOME:$HOME" --workdir $(pwd) --user $(id -u):$(id -g) --platform linux/s390x piotrsikora/build-tools:bazel-4.2.2-clang-13-gcc-11
+          run_under: docker run --rm --env HOME=$HOME --env USER=$(id -un) --volume "$HOME:$HOME" --workdir $(pwd) --user $(id -u):$(id -g) --platform linux/s390x piotrsikora/build-tools:bazel-5.0.0-clang-13-gcc-11
         - name: 'Wasmtime on macOS/x86_64'
           runtime: 'wasmtime'
           repo: 'com_github_bytecodealliance_wasmtime'

bazel/external/llvm.patch

@@ -0,0 +1,22 @@
+# Workaround for different linkers used in cmake()'s generate and build steps.
+# See: https://github.com/bazelbuild/rules_foreign_cc/issues/863
+
+diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake
+index 5d4d692a70ac..0a2e441b1b94 100644
+--- a/cmake/modules/HandleLLVMOptions.cmake
++++ b/cmake/modules/HandleLLVMOptions.cmake
+@@ -843,14 +843,6 @@ if (UNIX AND
+   append("-fdiagnostics-color" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
+ endif()
+
+-# lld doesn't print colored diagnostics when invoked from Ninja
+-if (UNIX AND CMAKE_GENERATOR STREQUAL "Ninja")
+-  include(CheckLinkerFlag)
+-  check_linker_flag("-Wl,--color-diagnostics" LINKER_SUPPORTS_COLOR_DIAGNOSTICS)
+-  append_if(LINKER_SUPPORTS_COLOR_DIAGNOSTICS "-Wl,--color-diagnostics"
+-    CMAKE_EXE_LINKER_FLAGS CMAKE_MODULE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS)
+-endif()
+-
+ # Add flags for add_dead_strip().
+ # FIXME: With MSVS, consider compiling with /Gy and linking with /OPT:REF?
+ # But MinSizeRel seems to add that automatically, so maybe disable these

bazel/external/llvm13.patch

@@ -0,0 +1,22 @@
+# Workaround for different linkers used in cmake()'s generate and build steps.
+# See: https://github.com/bazelbuild/rules_foreign_cc/issues/863
+
+diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake
+index 0c3419390c27..352e9402d808 100644
+--- a/cmake/modules/HandleLLVMOptions.cmake
++++ b/cmake/modules/HandleLLVMOptions.cmake
+@@ -917,14 +917,6 @@ if (UNIX AND
+   append("-fdiagnostics-color" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
+ endif()
+
+-# lld doesn't print colored diagnostics when invoked from Ninja
+-if (UNIX AND CMAKE_GENERATOR STREQUAL "Ninja")
+-  include(LLVMCheckLinkerFlag)
+-  llvm_check_linker_flag(CXX "-Wl,--color-diagnostics" LINKER_SUPPORTS_COLOR_DIAGNOSTICS)
+-  append_if(LINKER_SUPPORTS_COLOR_DIAGNOSTICS "-Wl,--color-diagnostics"
+-    CMAKE_EXE_LINKER_FLAGS CMAKE_MODULE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS)
+-endif()
+-
+ # Add flags for add_dead_strip().
+ # FIXME: With MSVS, consider compiling with /Gy and linking with /OPT:REF?
+ # But MinSizeRel seems to add that automatically, so maybe disable these

bazel/repositories.bzl

@@ -162,6 +162,8 @@ def proxy_wasm_cpp_host_repositories():
         sha256 = "408d11708643ea826f519ff79761fcdfc12d641a2510229eec459e72f8163020",
         strip_prefix = "llvm-13.0.0.src",
         url = "https://github.com/llvm/llvm-project/releases/download/llvmorg-13.0.0/llvm-13.0.0.src.tar.xz",
+        patches = ["@proxy_wasm_cpp_host//bazel/external:llvm13.patch"],
+        patch_args = ["-p1"],
     )
 
     # Wasmtime with dependencies.
@@ -214,4 +216,6 @@ def proxy_wasm_cpp_host_repositories():
         sha256 = "7d9a8405f557cefc5a21bf5672af73903b64749d9bc3a50322239f56f34ffddf",
         strip_prefix = "llvm-12.0.1.src",
         url = "https://github.com/llvm/llvm-project/releases/download/llvmorg-12.0.1/llvm-12.0.1.src.tar.xz",
+        patches = ["@proxy_wasm_cpp_host//bazel/external:llvm.patch"],
+        patch_args = ["-p1"],
     )