@@ -16,10 +16,17 @@
 SRCURL="http://sourceforge.net/projects/tcl/files/Thread%20Extension/${THREADVERS}/thread${THREADVERS}.tar.gz/download"
 BUILDDIR="$(pwd)/build/thread${THREADVERS}"
 OUTDIR="$(pwd)/out"
 INSTDIR="$(pwd)/inst"
 export ITCLVERS SRC SRCURL BUILDDIR OUTDIR INSTDIR
+
+# Set configure options for this sub-project
+LDFLAGS="${KC_THREAD_LDFLAGS}"
+CFLAGS="${KC_THREAD_CFLAGS}"
+CPPFLAGS="${KC_THREAD_CPPFLAGS}"
+LIBS="${KC_THREAD_LIBS}"
+export LDFLAGS CFLAGS CPPFLAGS LIBS
 
 rm -rf 'build' 'out' 'inst'
 mkdir 'build' 'out' 'inst' || exit 1
 
 # Determine if Threads is even needed