Move the main function to main.c

Move the main function to main.c in the git root to allow for
alternative main functions to be linked in its place. Specifically this
will be used to link the test runner main to run tests.

Makefile

@@ -33,9 +33,9 @@ config.h: config.def.h
 	@echo creating $@ from $<
 	@cp $< $@
 
-dunst: ${OBJ}
+dunst: ${OBJ} main.o
 	@echo "${CC} ${CFLAGS} -o $@ ${OBJ} ${LDFLAGS}"
-	@${CC} ${CFLAGS} -o $@ ${OBJ} ${LDFLAGS}
+	@${CC} ${CFLAGS} -o $@ ${OBJ} main.o ${LDFLAGS}
 
 dunstify:
 	@${CC} ${CFLAGS} -o $@ dunstify.c -std=c99 $(shell pkg-config --libs --cflags glib-2.0 libnotify)
@@ -45,7 +45,7 @@ debug: ${OBJ}
 	@${CC} ${CFLAGS} -O0 -o dunst ${OBJ} ${LDFLAGS}
 
 clean-dunst:
-	rm -f dunst ${OBJ}
+	rm -f dunst ${OBJ} main.o
 	rm -f org.knopwob.dunst.service
 
 clean-dunstify:

main.c

@@ -0,0 +1,7 @@
+#include "src/dunst.h"
+
+int main(int argc, char *argv[])
+{
+        return dunst_main(argc, argv);
+}
+/* vim: set tabstop=8 shiftwidth=8 expandtab textwidth=0: */

src/dunst.c

@@ -313,7 +313,7 @@ static void teardown(void)
         x_free();
 }
 
-int main(int argc, char *argv[])
+int dunst_main(int argc, char *argv[])
 {
 
         history = g_queue_new();

src/dunst.h

@@ -35,6 +35,8 @@ extern const char *color_strings[3][3];
 gboolean run(void *data);
 void wake_up(void);
 
+int dunst_main(int argc, char *argv[]);
+
 void check_timeouts(void);
 void history_pop(void);
 void history_push(notification *n);