3 files changed, 21 insertions, 16 deletions
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
deleted file mode 100644
index 61aeb77..0000000
--- a/src/CMakeLists.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-add_subdirectory(error)
-
-set(
-   SRC_FILES ${SRC_FILES}
-   ${CMAKE_CURRENT_SOURCE_DIR}/main.c
-   ${CMAKE_CURRENT_SOURCE_DIR}/signal.c
-   ${CMAKE_CURRENT_SOURCE_DIR}/socket.c
-)
-
-set(SRC_FILES ${SRC_FILES} PARENT_SCOPE)
diff --git a/src/Makefile b/src/Makefile
new file mode 100644
index 0000000..1cd5199
--- /dev/null
+++ b/src/Makefile
@@ -0,0 +1,21 @@
+SRC_FILES = $(wildcard ./*.c)
+OBJ_FILES = $(SRC_FILES:.c=.o)
+DEP_FILES = $(SRC_FILES:.c=.d)
+
+build: export.a
+
+export.a: $(OBJ_FILES)
+	ar cr $@ $^
+
+clean:
+	rm -f $(OBJ_FILES)
+	rm -f $(DEP_FILES)
+	rm -f export.a
+
+%.d: %.c
+	@set -e; rm -f $@; \
+		$(CC) -M $(CPPFLAGS) $< > $@.$$$$; \
+		sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
+		rm -f $@.$$$$
+
+include $(DEP_FILES)
diff --git a/src/error/CMakeLists.txt b/src/error/CMakeLists.txt
deleted file mode 100644
index fa07534..0000000
--- a/src/error/CMakeLists.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-set(
-   SRC_FILES ${SRC_FILES}
-)
-
-set(SRC_FILES ${SRC_FILES} PARENT_SCOPE)
-