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本帖最后由 stanley_tam 于 2013-08-22 20:52 编辑
verb和xsystem应该是用户自定义的函数,xsystem应该是执行$autoconf变量所代表的脚本,后面接的是脚本的参数。- # Source what the traces are trying to tell us.
- verb "$me: running $autoconf to trace from $ARGV[0]";
- xsystem(
- "$autoconf"
- # If you change this list, update the
- # `Autoheader-preselections' section of autom4te.in.
- . ' --trace AC_CONFIG_HEADERS:\'$config_h ||= \'"\'"\'$1\'"\'"\';\''
- . ' --trace AH_OUTPUT:\'$verbatim{\'"\'"\'$1\'"\'"\'} = \'"\'"\'$2\'"\'"\';\''
- . ' --trace AC_DEFINE_TRACE_LITERAL:\'$symbol{\'"\'"\'$1\'"\'"\'} = 1;\''
- . " $ARGV[0] >$tmp/traces.pl"
- );
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