From 4d7957a0432165fdb4baf93b1cc159801535a04f Mon Sep 17 00:00:00 2001
From: Lovell Fuller <github@lovell.info>
Date: Sun, 23 Apr 2023 11:37:43 +0100
Subject: [PATCH] Install: coerce libc version to semver #3641

---
 docs/changelog.md  |  3 +++
 install/libvips.js | 11 ++++++-----
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/docs/changelog.md b/docs/changelog.md
index 1bf8733b3..6f274a93a 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -29,6 +29,9 @@ Requires libvips v8.14.2
 * Ensure `trim` operation works with CMYK images (regression in 0.31.0).
   [#3636](https://github.com/lovell/sharp/issues/3636)
 
+* Install: coerce libc version to semver.
+  [#3641](https://github.com/lovell/sharp/issues/3641)
+
 ### v0.32.0 - 24th March 2023
 
 * Default to using sequential rather than random access read where possible.
diff --git a/install/libvips.js b/install/libvips.js
index 0e40b274a..493c79672 100644
--- a/install/libvips.js
+++ b/install/libvips.js
@@ -11,6 +11,7 @@ const zlib = require('zlib');
 const { createHash } = require('crypto');
 
 const detectLibc = require('detect-libc');
+const semverCoerce = require('semver/functions/coerce');
 const semverLessThan = require('semver/functions/lt');
 const semverSatisfies = require('semver/functions/satisfies');
 const simpleGet = require('simple-get');
@@ -140,16 +141,16 @@ try {
     }
     // Linux libc version check
     const libcFamily = detectLibc.familySync();
-    const libcVersion = detectLibc.versionSync();
+    const libcVersionRaw = detectLibc.versionSync();
+    const libcVersion = semverCoerce(libcVersionRaw).version;
     if (libcFamily === detectLibc.GLIBC && libcVersion && minimumGlibcVersionByArch[arch]) {
-      const libcVersionWithoutPatch = libcVersion.split('.').slice(0, 2).join('.');
-      if (semverLessThan(`${libcVersionWithoutPatch}.0`, `${minimumGlibcVersionByArch[arch]}.0`)) {
-        handleError(new Error(`Use with glibc ${libcVersion} requires manual installation of libvips >= ${minimumLibvipsVersion}`));
+      if (semverLessThan(libcVersion, semverCoerce(minimumGlibcVersionByArch[arch]).version)) {
+        handleError(new Error(`Use with glibc ${libcVersionRaw} requires manual installation of libvips >= ${minimumLibvipsVersion}`));
       }
     }
     if (libcFamily === detectLibc.MUSL && libcVersion) {
       if (semverLessThan(libcVersion, '1.1.24')) {
-        handleError(new Error(`Use with musl ${libcVersion} requires manual installation of libvips >= ${minimumLibvipsVersion}`));
+        handleError(new Error(`Use with musl ${libcVersionRaw} requires manual installation of libvips >= ${minimumLibvipsVersion}`));
       }
     }
     // Node.js minimum version check