Fix libc detection on various platforms

.yarn/versions/1f924e2c.yml

@@ -0,0 +1,35 @@
+releases:
+  "@yarnpkg/core": patch
+  "@yarnpkg/cli": patch
+
+declined:
+  - "@yarnpkg/plugin-compat"
+  - "@yarnpkg/plugin-constraints"
+  - "@yarnpkg/plugin-dlx"
+  - "@yarnpkg/plugin-essentials"
+  - "@yarnpkg/plugin-exec"
+  - "@yarnpkg/plugin-file"
+  - "@yarnpkg/plugin-git"
+  - "@yarnpkg/plugin-github"
+  - "@yarnpkg/plugin-http"
+  - "@yarnpkg/plugin-init"
+  - "@yarnpkg/plugin-interactive-tools"
+  - "@yarnpkg/plugin-jsr"
+  - "@yarnpkg/plugin-link"
+  - "@yarnpkg/plugin-nm"
+  - "@yarnpkg/plugin-npm"
+  - "@yarnpkg/plugin-npm-cli"
+  - "@yarnpkg/plugin-pack"
+  - "@yarnpkg/plugin-patch"
+  - "@yarnpkg/plugin-pnp"
+  - "@yarnpkg/plugin-pnpm"
+  - "@yarnpkg/plugin-stage"
+  - "@yarnpkg/plugin-typescript"
+  - "@yarnpkg/plugin-version"
+  - "@yarnpkg/plugin-workspace-tools"
+  - "@yarnpkg/builder"
+  - "@yarnpkg/doctor"
+  - "@yarnpkg/extensions"
+  - "@yarnpkg/nm"
+  - "@yarnpkg/pnpify"
+  - "@yarnpkg/sdks"

packages/yarnpkg-core/sources/nodeUtils.ts

@@ -26,9 +26,10 @@ export const openUrl = typeof openUrlBinary !== `undefined`
 const LDD_PATH = `/usr/bin/ldd` as PortablePath;
 
 function getLibc() {
-  // Darwin and Windows have their own standard libraries, and the getReport() call is costly.
-  // It also seems that Node randomly crashes with no output under some circumstances when running a getReport() on Windows.
-  if (process.platform === `darwin` || process.platform === `win32`)
+  // As of 2025, linux is the only possible process.platform value that does not imply the libc for Node's purposes.
+  // Technically mingw32 (a way to build and run software using glibc on Windows) exists and even has a node.js port, but no one in
+  // the broader node.js ecosystem seems to care about it. There have been issues in the past running getReport() on Windows.
+  if (process.platform !== `linux`)
     return null;
 
   let header: Buffer | undefined;
@@ -39,7 +40,7 @@ function getLibc() {
   // Since the getReport can be prohibitely expensive (it also queries DNS which, if misconfigured, can take a long time to timeout),
   // we first check if the ldd binary is glibc or musl, and only then run the getReport() if we can't determine the libc variant.
   if (typeof header !== `undefined`) {
-    if (header && (header.includes(`GLIBC`) || header.includes(`libc`)))
+    if (header && (header.includes(`GLIBC`) || header.includes(`GNU libc`) || header.includes(`GNU C Library`)))
       return `glibc`;
     if (header && header.includes(`musl`)) {
       return `musl`;