[hackers] [ii] Makefile: add a dependency on arg.h || Quentin Rameau

[git]

commit 95963c46ebcafd9542e9cd8e16ee158aca043ce7
Author:     Quentin Rameau <quinq@fifth.space>
AuthorDate: Sun Dec 3 22:17:36 2017 +0100
Commit:     Hiltjo Posthuma <hil...@codemadness.org>
CommitDate: Sun Dec 3 22:34:14 2017 +0100

    Makefile: add a dependency on arg.h

diff --git a/Makefile b/Makefile
index 1abe2ab..8e0d89d 100644
--- a/Makefile
+++ b/Makefile
@@ -21,6 +21,8 @@ options:
 ii: ${OBJ}
        ${CC} -o $@ ${OBJ} ${LDFLAGS}
 
+${OBJ}: arg.h
+
 install: all
        mkdir -p ${DESTDIR}${DOCDIR}
        mkdir -p ${DESTDIR}${BINDIR}