From 13d2f146d1105036833d7baa989eb3387aa8bed2 Mon Sep 17 00:00:00 2001
From: Rene Rivera <grafikrobot@gmail.com>
Date: Thu, 6 Jun 2024 22:42:45 -0500
Subject: [PATCH] Fix `msvc : all` not discovering all versions.

---
 src/tools/msvc.jam | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/tools/msvc.jam b/src/tools/msvc.jam
index 5e167436b5..f5becbdd4f 100644
--- a/src/tools/msvc.jam
+++ b/src/tools/msvc.jam
@@ -407,6 +407,12 @@ rule configure ( version ? : options * )
                     "empty when '$(version)' is specified." ;
             }
 
+            # Auto-register any version we can detect.
+            for local i in $(.known-versions)
+            {
+                try-auto-detect-version $(i) ;
+            }
+
             # Configure (i.e. mark as used) all registered versions.
             local all-versions = [ $(.versions).all ] ;
             if ! $(all-versions)