diff --git a/convert.c b/convert.c
index 3bb5a4dd57..038b0be617 100644
--- a/convert.c
+++ b/convert.c
@@ -641,7 +641,7 @@ static int ident_to_worktree(const char *path, const char *src, size_t len,
 	return 1;
 }
 
-static int git_path_check_crlf(const char *path, struct git_attr_check *check)
+static enum crlf_action git_path_check_crlf(const char *path, struct git_attr_check *check)
 {
 	const char *value = check->value;
 
@@ -658,7 +658,7 @@ static int git_path_check_crlf(const char *path, struct git_attr_check *check)
 	return CRLF_GUESS;
 }
 
-static int git_path_check_eol(const char *path, struct git_attr_check *check)
+static enum crlf_action git_path_check_eol(const char *path, struct git_attr_check *check)
 {
 	const char *value = check->value;
 
@@ -811,7 +811,7 @@ int renormalize_buffer(const char *path, const char *src, size_t len, struct str
 		src = dst->buf;
 		len = dst->len;
 	}
-	return ret | convert_to_git(path, src, len, dst, 0);
+	return ret | convert_to_git(path, src, len, dst, SAFE_CRLF_FALSE);
 }
 
 /*****************************************************************
diff --git a/git-compat-util.h b/git-compat-util.h
index 5ef8ff76f6..8b4dd5c022 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -219,7 +219,7 @@ extern char *gitbasename(char *);
 #define find_last_dir_sep(path) strrchr(path, '/')
 #endif
 
-#if __HP_cc >= 61000
+#if defined(__HP_cc) && (__HP_cc >= 61000)
 #define NORETURN __attribute__((noreturn))
 #define NORETURN_PTR
 #elif defined(__GNUC__) && !defined(NO_NORETURN)
diff --git a/http.c b/http.c
index 008ad72ae5..e6c75976e8 100644
--- a/http.c
+++ b/http.c
@@ -747,14 +747,6 @@ static inline int needs_quote(int ch)
 	return 1;
 }
 
-static inline int hex(int v)
-{
-	if (v < 10)
-		return '0' + v;
-	else
-		return 'A' + v - 10;
-}
-
 static char *quote_ref_url(const char *base, const char *ref)
 {
 	struct strbuf buf = STRBUF_INIT;
diff --git a/sha1_file.c b/sha1_file.c
index 27f3b9b278..6dcae3882b 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -2616,7 +2616,7 @@ static int index_mem(unsigned char *sha1, void *buf, size_t size,
 	if ((type == OBJ_BLOB) && path) {
 		struct strbuf nbuf = STRBUF_INIT;
 		if (convert_to_git(path, buf, size, &nbuf,
-		                   write_object ? safe_crlf : 0)) {
+				   write_object ? safe_crlf : SAFE_CRLF_FALSE)) {
 			buf = strbuf_detach(&nbuf, &size);
 			re_allocated = 1;
 		}