aclocal.m4

实现vpn网关用来建立 IP虚拟隧道

dnl Check files in directory
AC_DEFUN( AC_TEST_FILES,
[
    ac_file_found=yes
    for f in $1; do
	if test ! -f $2/$f; then
    	   ac_file_found=no
	   break;
	fi
    done

    if test "$ac_file_found" = "yes" ; then
	ifelse([$3], , :,[$3])
    else
	ifelse([$4], , :,[$4])
    fi
])