From 20e19b97ee6dc4bb54dc147579599a256bc72989 Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Mon, 2 Feb 2026 09:16:27 -0800
Subject: [PATCH] Fix NuGet packaging to handle dynamic glibc versions (#8474)

* Initial plan

* Fix NuGet package to support any glibc version

Make mk_nuget_task.py more robust by using pattern matching for glibc versions
instead of hardcoding specific versions. This fixes the issue where builds with
newer glibc versions (e.g., 2.39) were not recognized, causing the linux-x64
runtime to be missing from the NuGet package.

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

* Optimize regex patterns with non-capturing groups

Use non-capturing groups (?:) instead of capturing groups () for better
performance, as the captured groups are not used.

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
---
 scripts/mk_nuget_task.py | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/scripts/mk_nuget_task.py b/scripts/mk_nuget_task.py
index bcbe2be12..80c1f78b5 100644
--- a/scripts/mk_nuget_task.py
+++ b/scripts/mk_nuget_task.py
@@ -15,6 +15,7 @@ import sys
 import os.path
 import shutil
 import subprocess
+import re
 
 def mk_dir(d):
     if not os.path.exists(d):
@@ -33,13 +34,29 @@ os_info = {  'x64-ubuntu-latest' : ('so', 'linux-x64'),
              'arm64-osx' : ('dylib', 'osx-arm64'),
              'debian' : ('so', 'linux-x64') }
 
+# Pattern-based mappings for more flexible matching
+# These patterns handle version numbers and other variable parts
+os_patterns = [
+    (re.compile(r'x64-glibc-\d+(?:\.\d+)*'), 'so', 'linux-x64'),      # Matches x64-glibc-2.35, x64-glibc-2.39, etc.
+    (re.compile(r'arm64-glibc-\d+(?:\.\d+)*'), 'so', 'linux-arm64'),  # Matches arm64-glibc-* with version
+]
+
         
 
 def classify_package(f, arch):
+    # First try exact matches from the dictionary
     for os_name in os_info:
         if os_name in f:
             ext, dst = os_info[os_name]
             return os_name, f[:-4], ext, dst
+    
+    # Then try pattern-based matching for more flexible version handling
+    for pattern, ext, dst in os_patterns:
+        match = pattern.search(f)
+        if match:
+            matched_os_name = match.group(0)
+            return matched_os_name, f[:-4], ext, dst
+    
     print("Could not classify", f)
     return None