pecl install xhprof-beta
WARNING: channel "pecl.php.net" has updated its protocols, use "pecl channel-update pecl.php.net" to update
downloading xhprof-0.9.4.tgz ...
Starting to download xhprof-0.9.4.tgz (842,077 bytes)
..........................................................................done: 842,077 bytes
11 source files, building
running: phpize
Configuring for:
PHP Api Version: 20160303
Zend Module Api No: 20160303
Zend Extension Api No: 320160303
/Library/Developer/CommandLineTools/usr/bin/m4:aclocal.m4:3117: cannot open `build/ax_check_compile_flag.m4': No such file or directory
autom4te: /usr/bin/m4 failed with exit status: 1
ERROR: `phpize' failed
怎么解决啊？安装不上这个扩展