[PATCH 1/3] Kbuild: refactor fixdep to use getopt()

[Rasmus Villemoes]

As preparation for teaching an old dog a few new tricks.

Signed-off-by: Rasmus Villemoes <li...@rasmusvillemoes.dk>
---
 scripts/basic/fixdep.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
index 850966f3d602..666041841200 100644
--- a/scripts/basic/fixdep.c
+++ b/scripts/basic/fixdep.c
@@ -381,16 +381,23 @@ int main(int argc, char *argv[])
        const char *depfile, *target, *cmdline;
        int insert_extra_deps = 0;
        void *buf;
+       int opt;
 
-       if (argc == 5 && !strcmp(argv[1], "-e")) {
-               insert_extra_deps = 1;
-               argv++;
-       } else if (argc != 4)
+       while ((opt = getopt(argc, argv, "e")) != -1) {
+               switch (opt) {
+               case 'e': insert_extra_deps = 1; break;
+               default: usage();
+               }
+       }
+       argc -= optind;
+       argv += optind;
+
+       if (argc != 3)
                usage();
 
-       depfile = argv[1];
-       target = argv[2];
-       cmdline = argv[3];
+       depfile = argv[0];
+       target = argv[1];
+       cmdline = argv[2];
 
        printf("cmd_%s := %s\n\n", target, cmdline);
 
-- 
2.16.4