diff options
| -rw-r--r-- | src/coding.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/coding.h b/src/coding.h index 54553a071fa..5727b57a850 100644 --- a/src/coding.h +++ b/src/coding.h @@ -462,7 +462,10 @@ struct coding_system || (coding)->common_flags & CODING_REQUIRE_DECODING_MASK) /* Return 1 if the coding system CODING requires code conversion on - encoding. */ + encoding. + The non-multibyte part of the condition is to support encoding of + unibyte strings/buffers generated by string-as-unibyte or + (set-buffer-multibyte nil) from multibyte strings/buffers. */ #define CODING_REQUIRE_ENCODING(coding) \ ((coding)->src_multibyte \ || (coding)->common_flags & CODING_REQUIRE_ENCODING_MASK) |