错误：“的strdup”在此范围

未声明如图指令运行./configure && make

而且我得到这个错误：

thrift 0.9.3 

Building C++ Library ......... : no 
Building C (GLib) Library .... : no 
Building Java Library ........ : no 
Building C# Library .......... : no 
Building Python Library ...... : no 
Building Ruby Library ........ : no 
Building Haxe Library ........ : no 
Building Haskell Library ..... : no 
Building Perl Library ........ : no 
Building PHP Library ......... : no 
Building Erlang Library ...... : no 
Building Go Library .......... : no 
Building D Library ........... : no 
Building NodeJS Library ...... : no 
Building Lua Library ......... : no 

If something is missing that you think should be present, 
please skim the output of configure to find the missing 
component. Details are present in config.log. 
make all-recursive 
make[1]: Entering directory '/c/University/InternetOfThings/thrift-0.9.3' 
Making all in compiler/cpp 
make[2]: Entering directory '/c/University/InternetOfThings/thrift-0.9.3/compiler/cpp' 
/bin/sh ../../ylwrap src/thrifty.yy y.tab.c src/thrifty.cc y.tab.h `echo src/thrifty.cc | sed -e s/cc$/hh/ -e s/cpp$/hpp/ -e s/cxx$/hxx/ -e s/c++$/h++/ -e s/c$/h/` y.output src/thrifty.output -- bison -y -d 
updating src/thrifty.hh 
make all-am 
make[3]: Entering directory '/c/University/InternetOfThings/thrift-0.9.3/compiler/cpp' 
g++ -DHAVE_CONFIG_H -I. -I../.. -I../../lib/cpp/src/thrift -I./src -Wall -Wno-sign-compare -Wno-unused -g -O2 -std=c++11 -MT src/libparse_a-thrifty.o -MD -MP -MF src/.deps/libparse_a-thrifty.Tpo -c -o src/libparse_a-thrifty.o `test -f 'src/thrifty.cc' || echo './'`src/thrifty.cc 
src/thrifty.yy: In function 'int yyparse()': 
src/thrifty.yy:1311:30: error: 'strdup' was not declared in this scope 
Makefile:912: recipe for target 'src/libparse_a-thrifty.o' failed 
make[3]: *** [src/libparse_a-thrifty.o] Error 1 
make[3]: Leaving directory '/c/University/InternetOfThings/thrift-0.9.3/compiler/cpp' 
Makefile:588: recipe for target 'all' failed 
make[2]: *** [all] Error 2 
make[2]: Leaving directory '/c/University/InternetOfThings/thrift-0.9.3/compiler/cpp' 
Makefile:609: recipe for target 'all-recursive' failed 
make[1]: *** [all-recursive] Error 1 
make[1]: Leaving directory '/c/University/InternetOfThings/thrift-0.9.3' 
Makefile:530: recipe for target 'all' failed 
make: *** [all] Error 2

我编辑了thrifty.yy并添加了#include <string.h>但我仍然得到了strdup丢失的错误。

src/thrifty.yy:1311:30: error: 'strdup' was not declared in this scope（同样的错误，包括string.h中之前）

缺少什么我在这里？

在此先感谢！

来源

2016-11-23 Tony Tannous

http://stackoverflow.com/questions/32944390/what-is -the-ration-for-not-including-str-c-in-the-c-standard – Steephen

config.log中的任何相关内容？ – JensG

那是cygwin的环境吗？ Woudl很高兴知道......在这种情况下，请查看[THRIFT-2800]（https://issues.apache.org/jira/browse/THRIFT-2800） – JensG

strdup不是标准的C函数。当编译器被配置为严格C兼容时，不允许在标准库头（如<string.h>）中转储自己的自定义非标准函数。

您可以通过更改编译器来编译非标准C代码来解决此问题（例如，在gcc中，使用-std=gnu11而不是-std=c11编译）。或替代，坚持纯标准C.

...或只是实施的strdup自己，这是很容易：

#include <string.h> 
#include <stdlib.h> 

char* strdup (const char* s) 
{ 
    size_t slen = strlen(s); 
    char* result = malloc(slen + 1); 
    if(result == NULL) 
    { 
    return NULL; 
    } 

    memcpy(result, s, slen+1); 
    return result; 
}

来源

2016-11-23 13:44:35 Lundin

将'strdup'的实现添加到'thrifty.yy'给出了更多的错误： '0.9.3/compiler/cpp/src/thrifty.yy：255.5：error：invalid character：'*' char * strdup const char * s） /c/University/InternetOfThings/thrift-0.9.3/compiler/cpp/src/thrifty.yy:255.14：error：invalid character：'（' char * strdup（const char * s）我想它是一个C++编译器，所以它不会识别指针如何更改编译器以编译非标准C代码 –

@TonyTannous不要使用C++编译器编译C代码，没有理由为什么C++编译器不会识别指针，更有可能它不识别''但给出了错误的错误。 – Lundin

这不是我，我所做的只是按照说明中的./configure && make。 https://thrift.apache.org/tutorial/ –

错误：“的strdup”在此范围

回答

相关问题