[PATCH 05/11] parseopt: add a new PARSE_OPT_ARGV0_IS_AN_OPTION option

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This new option tells parse-options not to ignore argv[0]. This is
useful when argv cames from split_cmdline(), as in that case argv[0]
contains a valuable option as well.

Signed-off-by: Miklos Vajna <vmiklos@xxxxxxxxxxxxxx>
---
 parse-options.c |    5 +++++
 parse-options.h |    1 +
 2 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/parse-options.c b/parse-options.c
index b98833c..1d01a86 100644
--- a/parse-options.c
+++ b/parse-options.c
@@ -249,6 +249,11 @@ int parse_options(int argc, const char **argv, const struct option *options,
 {
 	struct optparse_t args = { argv + 1, argv, argc - 1, 0, NULL };
 
+	if (flags & PARSE_OPT_ARGV0_IS_AN_OPTION) {
+		args.argv = argv;
+		args.argc = argc;
+	}
+
 	for (; args.argc; args.argc--, args.argv++) {
 		const char *arg = args.argv[0];
 
diff --git a/parse-options.h b/parse-options.h
index 4ee443d..3238401 100644
--- a/parse-options.h
+++ b/parse-options.h
@@ -20,6 +20,7 @@ enum parse_opt_type {
 enum parse_opt_flags {
 	PARSE_OPT_KEEP_DASHDASH = 1,
 	PARSE_OPT_STOP_AT_NON_OPTION = 2,
+	PARSE_OPT_ARGV0_IS_AN_OPTION = 4,
 };
 
 enum parse_opt_option_flags {
-- 
1.5.6

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