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I just try to install EventMachine with RubyGems : (gem install eventmachine). I use Windows 7 x64.

I get this error :

C:/Ruby/193/bin/ruby.exe extconf.rb
checking for rb_trap_immediate in ruby.h,rubysig.h... no
checking for rb_thread_blocking_region()... yes
checking for inotify_init() in sys/inotify.h... no
checking for __NR_inotify_init in sys/syscall.h... no
checking for writev() in sys/uio.h... no
checking for rb_thread_check_ints()... yes
checking for rb_time_new()... yes
checking for windows.h... yes
checking for winsock.h... yes
checking for main() in -lkernel32... yes
checking for main() in -lrpcrt4... yes
checking for main() in -lgdi32... yes
checking for main() in -lssl... no
creating Makefile

make
generating rubyeventmachine-i386-mingw32.def
compiling binder.cpp
cc1plus.exe: warning: command line option "-Wdeclaration-after-statement" is valid for C/ObjC but not for C++
cc1plus.exe: warning: command line option "-Wimplicit-function-declaration" is valid for C/ObjC but not for C++
In file included from project.h:137:0,
                 from binder.cpp:20:
binder.h:35:34: warning: type qualifiers ignored on function return type
In file included from project.h:138:0,
                 from binder.cpp:20:
em.h:91:47: warning: type qualifiers ignored on function return type
em.h:92:76: warning: type qualifiers ignored on function return type
em.h:93:56: warning: type qualifiers ignored on function return type
em.h:95:57: warning: type qualifiers ignored on function return type
em.h:96:60: warning: type qualifiers ignored on function return type
em.h:97:58: warning: type qualifiers ignored on function return type
em.h:98:55: warning: type qualifiers ignored on function return type
em.h:99:36: warning: type qualifiers ignored on function return type
em.h:101:47: warning: type qualifiers ignored on function return type
em.h:106:42: warning: type qualifiers ignored on function return type
em.h:123:45: warning: type qualifiers ignored on function return type
em.h:132:36: warning: type qualifiers ignored on function return type
In file included from project.h:145:0,
                 from binder.cpp:20:
eventmachine.h:45:61: warning: type qualifiers ignored on function return type
eventmachine.h:46:112: warning: type qualifiers ignored on function return type
eventmachine.h:47:69: warning: type qualifiers ignored on function return type
eventmachine.h:49:73: warning: type qualifiers ignored on function return type
eventmachine.h:62:75: warning: type qualifiers ignored on function return type
eventmachine.h:63:74: warning: type qualifiers ignored on function return type
eventmachine.h:64:77: warning: type qualifiers ignored on function return type
eventmachine.h:65:41: warning: type qualifiers ignored on function return type
In file included from project.h:145:0,
                 from binder.cpp:20:
eventmachine.h:99:60: warning: type qualifiers ignored on function return type
eventmachine.h:100:58: warning: type qualifiers ignored on function return type
eventmachine.h:102:60: warning: type qualifiers ignored on function return type
eventmachine.h:105:41: warning: type qualifiers ignored on function return type
compiling cmain.cpp
cc1plus.exe: warning: command line option "-Wdeclaration-after-statement" is valid for C/ObjC but not for C++
cc1plus.exe: warning: command line option "-Wimplicit-function-declaration" is valid for C/ObjC but not for C++
In file included from project.h:137:0,
                 from cmain.cpp:20:
binder.h:35:34: warning: type qualifiers ignored on function return type
In file included from project.h:138:0,
                 from cmain.cpp:20:
em.h:91:47: warning: type qualifiers ignored on function return type
em.h:92:76: warning: type qualifiers ignored on function return type
em.h:93:56: warning: type qualifiers ignored on function return type
em.h:95:57: warning: type qualifiers ignored on function return type
em.h:96:60: warning: type qualifiers ignored on function return type
em.h:97:58: warning: type qualifiers ignored on function return type
em.h:98:55: warning: type qualifiers ignored on function return type
em.h:99:36: warning: type qualifiers ignored on function return type
em.h:101:47: warning: type qualifiers ignored on function return type
em.h:106:42: warning: type qualifiers ignored on function return type
em.h:123:45: warning: type qualifiers ignored on function return type
em.h:132:36: warning: type qualifiers ignored on function return type
In file included from project.h:145:0,
                 from cmain.cpp:20:
eventmachine.h:45:61: warning: type qualifiers ignored on function return type
eventmachine.h:46:112: warning: type qualifiers ignored on function return type
eventmachine.h:47:69: warning: type qualifiers ignored on function return type
eventmachine.h:49:73: warning: type qualifiers ignored on function return type
eventmachine.h:62:75: warning: type qualifiers ignored on function return type
eventmachine.h:63:74: warning: type qualifiers ignored on function return type
eventmachine.h:64:77: warning: type qualifiers ignored on function return type
eventmachine.h:65:41: warning: type qualifiers ignored on function return type
In file included from project.h:145:0,
                 from cmain.cpp:20:
eventmachine.h:99:60: warning: type qualifiers ignored on function return type
eventmachine.h:100:58: warning: type qualifiers ignored on function return type
eventmachine.h:102:60: warning: type qualifiers ignored on function return type
eventmachine.h:105:41: warning: type qualifiers ignored on function return type
cmain.cpp:98:71: warning: type qualifiers ignored on function return type
cmain.cpp:109:122: warning: type qualifiers ignored on function return type
cmain.cpp:119:79: warning: type qualifiers ignored on function return type
cmain.cpp:129:83: warning: type qualifiers ignored on function return type
cmain.cpp:260:85: warning: type qualifiers ignored on function return type
cmain.cpp:270:84: warning: type qualifiers ignored on function return type
cmain.cpp:280:88: warning: type qualifiers ignored on function return type
cmain.cpp:290:51: warning: type qualifiers ignored on function return type
cmain.cpp:300:70: warning: type qualifiers ignored on function return type
cmain.cpp:320:55: warning: type qualifiers ignored on function return type
cmain.cpp:546:70: warning: type qualifiers ignored on function return type
cmain.cpp:669:68: warning: type qualifiers ignored on function return type
cmain.cpp: In function 'int evma_send_file_data_to_connection(long unsigned int, const char*)':
cmain.cpp:752:6: error: cannot convert 'stat*' to '_stati64*' for argument '2' to 'int _fstati64(int, _stati64*)'
make: *** [cmain.o] Error 1

I use Ruby 1.9.3 Do you have an idea ?

Ruby has some problems in Windows, I hesitate to use Cygwin, what do you think ?

iMeee
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  • possible duplicate of [Ruby: problem installing EventMachine under Windows 7](http://stackoverflow.com/questions/6927907/ruby-problem-installing-eventmachine-under-windows-7) – mdb May 05 '12 at 19:55

1 Answers1

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Using Rubygems to get EM:

gem install eventmachine --pre

Installed it plenty of times myself, never had an issue. The --pre is what will get it to install correctly on Windows.

Also, the first Google result for install eventmachine on windows leads to this question, which is the exact same as yours.

EDIT: This answer was prior to EM 1.0's release. Now, standard gem install eventmachine should work and install 1.0.3.

Community
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Paul Hoffer
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  • there is a known problem with EM and ruby 1.9.3-p194 on windows see: https://github.com/eventmachine/eventmachine/issues/319 better to stick to 1.9.3-p125 – ALoR May 03 '12 at 20:14
  • @ALoR Thank you. I haven't worked with EM lately so I was unaware of this issue. – Paul Hoffer May 04 '12 at 15:21