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-rw-r--r--m4/unistd_h.m41
1 files changed, 1 insertions, 0 deletions
diff --git a/m4/unistd_h.m4 b/m4/unistd_h.m4
index 29f3947b5e..720e0fd03b 100644
--- a/m4/unistd_h.m4
+++ b/m4/unistd_h.m4
@@ -136,6 +136,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS],
HAVE_USLEEP=1; AC_SUBST([HAVE_USLEEP])
HAVE_DECL_ENVIRON=1; AC_SUBST([HAVE_DECL_ENVIRON])
HAVE_DECL_FCHDIR=1; AC_SUBST([HAVE_DECL_FCHDIR])
+ HAVE_DECL_FDATASYNC=1; AC_SUBST([HAVE_DECL_FDATASYNC])
HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME])
HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R])
HAVE_DECL_GETPAGESIZE=1; AC_SUBST([HAVE_DECL_GETPAGESIZE])