replace obsolete autoconf macros

[mmh] / mts / smtp / smtp.c

diff --git a/mts/smtp/smtp.c b/mts/smtp/smtp.c
index 63aef40..da02701 100644 (file)
--- a/mts/smtp/smtp.c
+++ b/mts/smtp/smtp.c
@@ -959,7 +959,7 @@ bad_data:
     free (cp);
 
     {
-#ifdef HAVE_ST_BLKSIZE
+#ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
        struct stat st;
 
        if (fstat (fileno (sm_wfp), &st) == NOTOK || (cc = st.st_blksize) < BUFSIZ)