1 files changed, 4 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index bea4e27f..084fec3 100644
--- a/Makefile
+++ b/Makefile
@@ -252,6 +252,10 @@ mostlyclean: parent-mostlyclean
 tests-clean:
 	@$(MAKE) subdir_testclean no_deps=t
 
+ifeq ($(enable-float128),yes)
+CPPFLAGS += -DWANT_FLOAT128=1
+endif
+
 ifneq (,$(CXX))
 vpath c++-types.data $(+sysdep_dirs)