From 26ad6ed14f64775784679964c9478a8b3aafb135 Mon Sep 17 00:00:00 2001
From: Alexander Grund <Flamefire@users.noreply.github.com>
Date: Wed, 15 Jul 2026 05:07:43 +0200
Subject: [PATCH] Fix using ccache with clang-linux toolset  (#605)

* Fix using ccache with clang-linux toolset

When using ccache with `using clang : : ccache clang++-3.6 ;` then `common.get-absolute-tool-path` fails.

Use the last element as done for gcc

* Add test for clang-win auto-deducing ar
---
 src/tools/clang-linux.jam            | 2 +-
 test/toolset-mock/project-config.jam | 2 ++
 test/toolset_clang_linux.py          | 3 +++
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/tools/clang-linux.jam b/src/tools/clang-linux.jam
index 95e8f8fe7..03f5546c2 100644
--- a/src/tools/clang-linux.jam
+++ b/src/tools/clang-linux.jam
@@ -110,7 +110,7 @@ rule init ( version ? :  command * : options * ) {
     }
   if ! $(archiver)
     {
-    local bin = [ common.get-absolute-tool-path $(command) ] ;
+    local bin = [ common.get-absolute-tool-path $(command[-1]) ] ;
     archiver = [ common.get-invocation-command-nodefault clang-linux : llvm-ar : : $(bin) : search-path ] ;
     }
   toolset.flags clang-linux.archive .AR $(condition) : $(archiver[1]) ;
diff --git a/test/toolset-mock/project-config.jam b/test/toolset-mock/project-config.jam
index ded8d78bd..4d73ec241 100644
--- a/test/toolset-mock/project-config.jam
+++ b/test/toolset-mock/project-config.jam
@@ -27,6 +27,8 @@ using darwin : 4.2.1 : $(PYTHON) $(here)/src/darwin-4.2.1.py
 
 using clang-darwin  : 3.9.0 : $(PYTHON) $(here)/src/clang-3.9.0-darwin.py : $(ar) ;
 using clang-linux   : 3.9.0 : $(PYTHON) $(here)/src/clang-linux-3.9.0.py : $(ar) ;
+# Let clang-linux auto-deduce the archiver
+using clang-linux   : 3.9.1 : $(PYTHON) $(here)/src/clang-linux-3.9.0.py ;
 using clang-vxworks : 4.0.1 : $(PYTHON) $(here)/src/clang-vxworks-4.0.1.py : $(ar) ;
 using intel-darwin  : 10.2  : $(PYTHON) $(here)/src/intel-darwin-10.2.py : $(ar) ;
 
diff --git a/test/toolset_clang_linux.py b/test/toolset_clang_linux.py
index 1ff12336e..0f078a85e 100644
--- a/test/toolset_clang_linux.py
+++ b/test/toolset_clang_linux.py
@@ -27,3 +27,6 @@ test_toolset("clang-linux", "3.9.0", [
     ["target-os=windows", "link=static"],
     ["target-os=windows", "architecture=x86", "address-model=32"]
     ])
+
+# Auto-deduced ar
+test_toolset("clang-linux", "3.9.1", [["target-os=linux"]])