1AC_DEFUN(UTIL_CHECK_CFLAG,
2  [
3    AC_MSG_CHECKING([if the C compiler ($CC) supports -$1])
4    ac_OLD_CFLAGS="$CFLAGS"
5    CFLAGS="$CFLAGS -$1"
6    AC_TRY_LINK([], [ { int x; x = 1; } ],
7      AC_MSG_RESULT(yes),
8      AC_MSG_RESULT(no)
9      CFLAGS="$ac_OLD_CFLAGS")
10  ])
11
12AC_DEFUN(UTIL_CHECK_LDFLAG,
13  [
14    AC_MSG_CHECKING([if the linker supports -$1])
15    ac_OLD_LDFLAGS="$LDFLAGS"
16    LDFLAGS="$LDFLAGS -$1"
17    AC_TRY_LINK([], [ { int x; x = 1; } ],
18      AC_MSG_RESULT(yes),
19      AC_MSG_RESULT(no)
20      LDFLAGS="$ac_OLD_LDFLAGS")
21  ])
22