postfix: Fix build with GCC 15

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

diff --git a/lfs/postfix b/lfs/postfix
index c9fe4cbd88187d9d162610b8e2d206977b423cca..c7c48895e038317eb34bdb6030e60c5492184036 100644 (file)
--- a/lfs/postfix
+++ b/lfs/postfix
@@ -40,7 +40,9 @@ DEPS       =
 
 SERVICES   = postfix
 
-CCARGS     = `getconf LFS_CFLAGS` \
+CCARGS     = \
+       -std=gnu17 \
+       `getconf LFS_CFLAGS` \
        -DDEF_DAEMON_DIR="'\"/usr/lib/postfix\"'" \
        -DDEF_MANPAGE_DIR="'\"/usr/share/man\"'" \
        -DNO_NIS