Makefile: Add target for library

A new Make target to build the Rust library. This facilitates handling
of other targets that depend on the library.

1 files changed, 9 insertions, 2 deletions

diff --git a/Makefile b/Makefile
index 5576df4..5f1288b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,12 @@
-includer: clean
-	gcc -o $@ includer.c target/debug/libdome_key_map.a
+SOURCE_FILES = $(shell find src -type f -name '*.rs')
+
+LIB := target/debug/libdome_key_map.a
+
+$(LIB): $(SOURCE_FILES)
+	cargo build
+
+includer: clean $(LIB)
+	gcc -o $@ includer.c $(LIB)
 
 .PHONY: clean
 clean: