foo

MODULE.bazel

@@ -11,8 +11,10 @@ single_version_override(
     patch_strip = 1,
     patches = [
         "//patches:llvm_windows_symlink_extract.patch",
+        "//patches:toolchains_llvm_trim_mingw_msvcrt_patch.patch",
     ],
 )
+
 # Abseil picks a MinGW pthread TLS path that does not match our hermetic
 # windows-gnullvm toolchain; force it onto the portable C++11 thread-local path.
 single_version_override(

patches/BUILD.bazel

@@ -5,6 +5,7 @@ exports_files([
     "rules_rust_windows_gnullvm_build_script.patch",
     "rules_rs_windows_gnullvm_exec.patch",
     "rusty_v8_prebuilt_out_dir.patch",
+    "toolchains_llvm_trim_mingw_msvcrt_patch.patch",
     "v8_bazel_rules.patch",
     "v8_module_deps.patch",
     "v8_source_portability.patch",

patches/toolchains_llvm_trim_mingw_msvcrt_patch.patch

@@ -0,0 +1,29 @@
+diff --git a/runtimes/mingw/extension/mingw.bzl b/runtimes/mingw/extension/mingw.bzl
+--- a/runtimes/mingw/extension/mingw.bzl
++++ b/runtimes/mingw/extension/mingw.bzl
+@@ -11,7 +11,7 @@ def _mingw_extension_impl(module_ctx):
+         strip_prefix = "mingw-w64-v13.0.0",
+         build_file = "//runtimes/mingw:mingw.BUILD.bazel",
+         patches = [
+-            "//runtimes/mingw/patches:remove-fpreset-from-msvcrt-def.patch",
++            "//runtimes/mingw/patches:remove-fpreset-from-msvcrt-def-single-hunk.patch",
+         ],
+         patch_args = ["-p1"],
+     )
+diff --git a/runtimes/mingw/patches/remove-fpreset-from-msvcrt-def-single-hunk.patch b/runtimes/mingw/patches/remove-fpreset-from-msvcrt-def-single-hunk.patch
+new file mode 100644
+--- /dev/null
++++ b/runtimes/mingw/patches/remove-fpreset-from-msvcrt-def-single-hunk.patch
+@@ -0,0 +1,12 @@
++diff --git a/mingw-w64-crt/lib-common/msvcrt.def.in b/mingw-w64-crt/lib-common/msvcrt.def.in
++index 95b25012b..95b25012b 100644
++--- a/mingw-w64-crt/lib-common/msvcrt.def.in
+++++ b/mingw-w64-crt/lib-common/msvcrt.def.in
++@@ -603,7 +603,6 @@
++ _fmode DATA
++ _fpclass
++ F_NON_X64(_fpieee_flt)
++-_fpreset F_LD80(DATA)
++ _fputchar
++ _fputwchar
++ _fsopen