Question

当我尝试使用命令gem install date-performance安装gem date-performance时，出现此错误：

date_performance.c:16:14: erro: static declaration of ‘rb_cRational’ follows non-static declaration
...
date_performance.c:365:3: aviso: ISO C90 forbids mixed declarations and code [-pedantic]
make: ** [date_performance.o] Erro 1

如何解决？

UDPATE：

SO是Ubuntu，我使用ruby 1.9

遵循完整错误：

/home/vmlellis/.rvm/rubies/ruby-1.9.3-p392/bin/ruby extconf.rb
creating Makefile

make
compiling date_performance.c
date_performance.c:16:14: erro: static declaration of ‘rb_cRational’ follows non-static declaration
In file included from /home/vmlellis/.rvm/rubies/ruby-1.9.3-p392/include/ruby-1.9.1/ruby.h:32:0,
                 from date_performance.c:9:
/home/vmlellis/.rvm/rubies/ruby-1.9.3-p392/include/ruby-1.9.1/ruby/ruby.h:1271:19: nota: previous declaration of ‘rb_cRational’ was here
date_performance.c: Na função ‘rb_date_new’:
date_performance.c:200:5: aviso: ISO C90 forbids mixed declarations and code [-pedantic]
date_performance.c:219:3: aviso: ISO C90 forbids mixed declarations and code [-pedantic]
date_performance.c: Na função ‘rb_date_strftime’:
date_performance.c:253:31: erro: ‘struct RString’ has no member named ‘ptr’
date_performance.c:254:29: erro: ‘struct RArray’ has no member named ‘ptr’
date_performance.c:268:30: erro: ‘struct RString’ has no member named ‘ptr’
date_performance.c:269:17: erro: ‘struct RString’ has no member named ‘len’
date_performance.c:277:30: erro: ‘struct RString’ has no member named ‘ptr’
date_performance.c:279:5: aviso: implicit declaration of function ‘bzero’ [-Wimplicit-function-declaration]
date_performance.c:279:5: aviso: incompatible implicit declaration of built-in function ‘bzero’ [habilitado por padrão]
date_performance.c:284:23: erro: ‘struct RString’ has no member named ‘len’
date_performance.c: Na função ‘rb_date_strptime’:
date_performance.c:304:27: erro: ‘struct RString’ has no member named ‘ptr’
date_performance.c:305:27: erro: ‘struct RString’ has no member named ‘ptr’
date_performance.c:329:3: aviso: implicit declaration of function ‘strptime’ [-Wimplicit-function-declaration]
date_performance.c: Na função ‘rb_date_compare’:
date_performance.c:350:3: aviso: ISO C90 forbids mixed declarations and code [-pedantic]
date_performance.c:353:5: aviso: comentários usando o estilo do C++ não são permitidos na ISO C90 [habilitado por padrão]
date_performance.c:353:5: aviso: (isso será relatado apenas uma vez por aquivo de entrada) [habilitado por padrão]
date_performance.c:365:3: aviso: ISO C90 forbids mixed declarations and code [-pedantic]
make: ** [date_performance.o] Erro 1

Answer 1

这个宝石意味着Ruby 1.8：

这个软件包为Ruby 1.8的核心增加了一些性能日期类使用不同技术的组合

它可能在Ruby 1.9+中断（Ruby因其前向兼容性而闻名）。在GitHub项目页面上，您可以看到它在过去的4年中没有更新。

它不适用于您的Ruby 1.9 Ubuntu安装。

日期性能安装错误

1 个答案: