Index: external/libnumbertext/ExternalProject_libnumbertext.mk
--- external/libnumbertext/ExternalProject_libnumbertext.mk.orig
+++ external/libnumbertext/ExternalProject_libnumbertext.mk
@@ -20,6 +20,8 @@ libnumbertext_CXXFLAGS=$(CXXFLAGS) $(CXXFLAGS_CXX11) $
 
 libnumbertext_CPPFLAGS+=$(gb_COMPILERDEFS_STDLIB_DEBUG) $(gb_EMSCRIPTEN_CPPFLAGS)
 
+libnumbertext_CPPFLAGS+=-fPIC
+
 $(call gb_ExternalProject_get_state_target,libnumbertext,build):
 	$(call gb_Trace_StartRange,libnumbertext,EXTERNAL)
 	$(call gb_ExternalProject_run,build,\
