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c++ - :0:8: 错误：一个声明中有多种类型

问题描述

当我尝试在 CentOS 7.5 中执行语法服务器代码（包含 c 和 c++ 文件）时，我遇到了以下错误

获得错误：

[command-line]:0:8: error: multiple types in one declaration
[command-line]:0:8: error: declaration does not declare anything `enter code here`[-fpermissive]
[command-line]:0:7: error: multiple types in one declaration
[command-line]:0:7: error: declaration does not declare anything [-fpermissive]
In file included from /usr/include/_G_config.h:15:0,
                 from /usr/include/libio.h:32,
                 from /usr/include/stdio.h:74,
                 from jsapi.h:47,
                 from jsatom.h:47,
                 from jscntxt.h:59,
                 from jsanalyze.h:45,
                 from jsanalyze.cpp:40:
jsfun.h: In static member function ‘static uintN JSFunction::offsetOfNativeOrScript()’:
jsfun.h:230:37: warning: invalid access to non-static data member ‘JSFunction::u’  of NULL object [-Winvalid-offsetof]
         return offsetof(JSFunction, u.nativeOrScript);
                                     ^
jsfun.h:230:37: warning: (perhaps the ‘offsetof’ macro was used incorrectly) [-Winvalid-offsetof]
In file included from /usr/include/time.h:37:0,
                 from prmjtime.h:46,
                 from jscntxt.h:75,
                 from jsanalyze.h:45,
                 from jsanalyze.cpp:40:
jscntxt.h: In function ‘JSContext* js_ContextFromLinkField(JSCList*)’:
jscntxt.h:2963:64: warning: invalid access to non-static data member ‘JSContext::link’  of NULL object [-Winvalid-offsetof]
     return (JSContext *) ((uint8 *) link - offsetof(JSContext, link));
                                                                ^
jscntxt.h:2963:64: warning: (perhaps the ‘offsetof’ macro was used incorrectly) [-Winvalid-offsetof]
make[1]: *** [jsanalyze.o] Error 1

我无法弄清楚问题所在。任何人都可以帮我解决这个问题吗？谢谢你

标签： c++centos7

解决方案

通过安装 spiderMonkey 完成 autoconf-2.13 后，上述错误得到解决。有关安装的更多信息，请参阅以下站点： https ://wiki.apache.org/couchdb/Installing_SpiderMonkey 。

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