Makefile: don't error out under DC_SHA1_EXTERNAL if DC_SHA1_SUBMODULE=auto

diff --git a/diffcore-pickaxe.c b/diffcore-pickaxe.c
index 9795ca1c159a5177b1b7031a87c8f8bd5e5be3d5..9476bd21081f456be6ae6412ea591e11dde50686 100644 (file)
--- a/diffcore-pickaxe.c
+++ b/diffcore-pickaxe.c
@@ -81,12 +81,15 @@ static unsigned int contains(mmfile_t *mf, regex_t *regexp, kwset_t kws)
                regmatch_t regmatch;
                int flags = 0;
 
-               while (*data &&
+               while (sz && *data &&
                       !regexec_buf(regexp, data, sz, 1, &regmatch, flags)) {
                        flags |= REG_NOTBOL;
                        data += regmatch.rm_eo;
-                       if (*data && regmatch.rm_so == regmatch.rm_eo)
+                       sz -= regmatch.rm_eo;
+                       if (sz && *data && regmatch.rm_so == regmatch.rm_eo) {
                                data++;
+                               sz--;
+                       }
                        cnt++;
                }
 
@@ -128,7 +131,7 @@ static int pickaxe_match(struct diff_filepair *p, struct diff_options *o,
        if (!DIFF_FILE_VALID(p->one) && !DIFF_FILE_VALID(p->two))
                return 0;
 
-       if (DIFF_OPT_TST(o, ALLOW_TEXTCONV)) {
+       if (o->flags.allow_textconv) {
                textconv_one = get_textconv(p->one);
                textconv_two = get_textconv(p->two);
        }
@@ -219,11 +222,11 @@ void diffcore_pickaxe(struct diff_options *o)
 
        if (opts & (DIFF_PICKAXE_REGEX | DIFF_PICKAXE_KIND_G)) {
                int cflags = REG_EXTENDED | REG_NEWLINE;
-               if (DIFF_OPT_TST(o, PICKAXE_IGNORE_CASE))
+               if (o->flags.pickaxe_ignore_case)
                        cflags |= REG_ICASE;
                regcomp_or_die(&regex, needle, cflags);
                regexp = &regex;
-       } else if (DIFF_OPT_TST(o, PICKAXE_IGNORE_CASE) &&
+       } else if (o->flags.pickaxe_ignore_case &&
                   has_non_ascii(needle)) {
                struct strbuf sb = STRBUF_INIT;
                int cflags = REG_NEWLINE | REG_ICASE;
@@ -233,7 +236,7 @@ void diffcore_pickaxe(struct diff_options *o)
                strbuf_release(&sb);
                regexp = &regex;
        } else {
-               kws = kwsalloc(DIFF_OPT_TST(o, PICKAXE_IGNORE_CASE)
+               kws = kwsalloc(o->flags.pickaxe_ignore_case
                               ? tolower_trans_tbl : NULL);
                kwsincr(kws, needle, strlen(needle));
                kwsprep(kws);