commit f5ed45a: [Minor] Add workaround for old libicu

[Vsevolod Stakhov]

Author: Vsevolod Stakhov
Date: 2021-10-05 12:15:04 +0100
URL: https://github.com/rspamd/rspamd/commit/f5ed45a2cfcc73ae3ed2c9fcd25c7ba338ed1dad

[Minor] Add workaround for old libicu

---
 src/libmime/mime_string.hxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libmime/mime_string.hxx b/src/libmime/mime_string.hxx
index 41d2f5f7e..27483ce60 100644
--- a/src/libmime/mime_string.hxx
+++ b/src/libmime/mime_string.hxx
@@ -501,7 +501,7 @@ private:
 		/* This is fast path */
 		const auto *p = str;
 		const auto *end = str + len;
-		std::ptrdiff_t err_offset;
+		std::int32_t err_offset; // We have to use int32_t here as old libicu is brain-damaged
 		auto orig_size = storage.size();
 
 		storage.reserve(len + storage.size());