- [test $ac_cv_header_mntent_h = yes \
- && fu_cv_sys_mounted_getmntent1=yes \
- || fu_cv_sys_mounted_getmntent1=no])
+ [AC_TRY_COMPILE([
+/* SunOS 4.1.x /usr/include/mntent.h needs this for FILE */
+#include <stdio.h>
+
+#include <mntent.h>
+#if !defined MOUNTED
+# if defined _PATH_MOUNTED /* GNU libc */
+# define MOUNTED _PATH_MOUNTED
+# endif
+# if defined MNT_MNTTAB /* HP-UX. */
+# define MOUNTED MNT_MNTTAB
+# endif
+# if defined MNTTABNAME /* Dynix. */
+# define MOUNTED MNTTABNAME
+# endif
+#endif
+],
+ [ struct mntent *mnt = 0; char *table = MOUNTED; ],
+ fu_cv_sys_mounted_getmntent1=yes,
+ fu_cv_sys_mounted_getmntent1=no)])