Don't use AC_CHECK_FUNCS unless it's going to work.

diff --git a/lib/autoconf/functions.m4 b/lib/autoconf/functions.m4
index 6c38720ed6732e8f32201abcbb5d64d68f281eb4..228b808a3aa27752960c96bb0732be361fa30fa4 100644 (file)
--- a/lib/autoconf/functions.m4
+++ b/lib/autoconf/functions.m4
@@ -773,8 +773,7 @@ AN_FUNCTION([getmntent], [AC_FUNC_GETMNTENT])
 AC_DEFUN([AC_FUNC_GETMNTENT],
 [# getmntent is in the standard C library on UNICOS, in -lsun on Irix 4,
 # -lseq on Dynix/PTX, -lgen on Unixware.
-AC_SEARCH_LIBS(getmntent, -lsun -lseq -lgen)
-AC_CHECK_FUNCS(getmntent)
+AC_SEARCH_LIBS(getmntent, -lsun -lseq -lgen, [AC_CHECK_FUNCS(getmntent)])
 ])