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