3 files changed, 5 insertions, 2 deletions

diff --git a/configs/mingw32_defconfig b/configs/mingw32_defconfig
index 5ed8cd41f..5a17fb164 100644
--- a/configs/mingw32_defconfig
+++ b/configs/mingw32_defconfig
@@ -232,7 +232,7 @@ CONFIG_EXPR_MATH_SUPPORT_64=y
 CONFIG_FACTOR=y
 CONFIG_FALSE=y
 CONFIG_FOLD=y
-# CONFIG_FSYNC is not set
+CONFIG_FSYNC=y
 CONFIG_HEAD=y
 CONFIG_FEATURE_FANCY_HEAD=y
 # CONFIG_HOSTID is not set
diff --git a/configs/mingw64_defconfig b/configs/mingw64_defconfig
index 2c189700a..7460e9860 100644
--- a/configs/mingw64_defconfig
+++ b/configs/mingw64_defconfig
@@ -232,7 +232,7 @@ CONFIG_EXPR_MATH_SUPPORT_64=y
 CONFIG_FACTOR=y
 CONFIG_FALSE=y
 CONFIG_FOLD=y
-# CONFIG_FSYNC is not set
+CONFIG_FSYNC=y
 CONFIG_HEAD=y
 CONFIG_FEATURE_FANCY_HEAD=y
 # CONFIG_HOSTID is not set
diff --git a/coreutils/fsync.c b/coreutils/fsync.c
index 5e77e2c16..f132087cd 100644
--- a/coreutils/fsync.c
+++ b/coreutils/fsync.c
@@ -26,6 +26,9 @@
 #ifndef O_NOATIME
 # define O_NOATIME 0
 #endif
+#ifndef O_NOCTTY
+# define O_NOCTTY 0
+#endif
 
 /* This is a NOFORK applet. Be very careful! */