patch 8.0.1681: the format attribute fails with MinGW commit https://github.com/vim/vim/commit/e80757c1545286240d687e9a303cf8eeb3f9a6de Author: Bram Moolenaar <Bram@vim.org> Date: Tue Apr 10 12:42:44 2018 +0200 patch 8.0.1681: the format attribute fails with MinGW Problem: The format attribute fails with MinGW. (John Marriott) Solution: Don't use the format attribute with MinGW.

--- a/src/channel.c
+++ b/src/channel.c
@@ -179,8 +179,8 @@ ch_log(channel_T *ch, const char *fmt, .
 
     static void
 ch_error(channel_T *ch, const char *fmt, ...)
-#ifdef __GNUC__
-__attribute__((format(printf, 2, 3)))
+#ifdef USE_PRINTF_FORMAT_ATTRIBUTE
+    __attribute__((format(printf, 2, 3)))
 #endif
     ;