diff --git a/.gitignore b/.gitignore
index 72e65cb..90b2be0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,5 +12,6 @@ latex/
 make.log
 make.log.new
 localconf
+lib/configure.h
 scripts/beesd
 scripts/beesd@.service
diff --git a/lib/Makefile b/lib/Makefile
index 21460f7..3217578 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -23,8 +23,12 @@ CRUCIBLE_OBJS = \
 libcrucible.so: $(CRUCIBLE_OBJS) -luuid
 
 include ../makeflags
+include ../Defines.mk
 
-.depends/%.dep: %.cc Makefile
+configure.h: configure.h.in
+	$(TEMPLATE_COMPILER)
+
+.depends/%.dep: %.cc configure.h Makefile
 	@mkdir -p .depends
 	$(CXX) $(CXXFLAGS) -M -MF $@ -MT $(<:.cc=.o) $<
 
@@ -32,7 +36,7 @@ depends.mk: $(CRUCIBLE_OBJS:%.o=.depends/%.dep)
 	cat $^ > $@.new
 	mv -f $@.new $@
 
-.version.cc: Makefile ../makeflags *.cc ../include/crucible/*.h
+.version.cc: configure.h Makefile ../makeflags *.cc ../include/crucible/*.h
 	echo "namespace crucible { const char *VERSION = \"$(TAG)\"; }" > $@.new
 	mv -f $@.new $@
 
diff --git a/lib/configure.h.in b/lib/configure.h.in
new file mode 100644
index 0000000..8038b1b
--- /dev/null
+++ b/lib/configure.h.in
@@ -0,0 +1,6 @@
+#ifndef _CONFIGURE_H
+
+#define ETC_PREFIX "@ETC_PREFIX@"
+
+#define _CONFIGURE_H
+#endif