grep: add a test asserting that --perl-regexp dies when !PCRE

diff --git a/revision.c b/revision.c
index 7ff61ff5f73db07af522ac57d62ed9e699aedf72..c96265d89dea5f1df6094621e68a164239e4f9f6 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -1991,6 +1991,7 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
        } else if (!strcmp(arg, "--extended-regexp") || !strcmp(arg, "-E")) {
                revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_ERE;
        } else if (!strcmp(arg, "--regexp-ignore-case") || !strcmp(arg, "-i")) {
+               revs->grep_filter.ignore_case = 1;
                revs->grep_filter.regflags |= REG_ICASE;
                DIFF_OPT_SET(&revs->diffopt, PICKAXE_IGNORE_CASE);
        } else if (!strcmp(arg, "--fixed-strings") || !strcmp(arg, "-F")) {