diff --git a/src/Makevars.in b/src/Makevars.in
index be8445f..faee771 100644
--- a/src/Makevars.in
+++ b/src/Makevars.in
@@ -60,7 +60,10 @@ else
 	endif
 
 	ifeq ($(UNAME), Linux)
-		USE_TBB=Linux
+		# bincraft patch: the bundled Intel TBB build hangs/fails on musl (Alpine)
+		# and newer toolchains (g++ 15). Skip it (leave USE_TBB unset) and force the
+		# TinyThread backend so RcppParallel still builds.
+		PKG_CXXFLAGS += -DRCPP_PARALLEL_USE_TBB=0
 	endif
 
 	ifeq ($(UNAME), SunOS)