From: Xeno Campanoli / Eskimo North and Gmail <xeno.campanoli@...>
Date: 2010-05-19T08:01:50+09:00
Subject: Re: curl library?

Well, I got that -dev thing installed with apt-get, and then I tried again and 
got this log:

find_executable: checking for curl-config... -------------------- no

--------------------

have_library: checking for main() in -lcurl... -------------------- no

"gcc -o conftest -I. -I/usr/lib/ruby/1.8/i486-linux -I.  -D_FILE_OFFSET_BITS=64 
  -fno-strict-aliasing -g -g -O2  -fPIC   conftest.c  -L. -L/usr/lib -L. 
-Wl,-Bsymbolic-functions -rdynamic -Wl,-export-dynamic     -lruby1.8-static 
-lcurl  -lpthread -lrt -ldl -lcrypt -lm   -lc"
/usr/bin/ld: cannot find -lcurl
collect2: ld returned 1 exit status
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void ((*)()))main; return 0; }
/* end */

"gcc -o conftest -I. -I/usr/lib/ruby/1.8/i486-linux -I.  -D_FILE_OFFSET_BITS=64 
  -fno-strict-aliasing -g -g -O2  -fPIC   conftest.c  -L. -L/usr/lib -L. 
-Wl,-Bsymbolic-functions -rdynamic -Wl,-export-dynamic     -lruby1.8-static 
-lcurl  -lpthread -lrt -ldl -lcrypt -lm   -lc"
/usr/bin/ld: cannot find -lcurl
collect2: ld returned 1 exit status
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { main(); return 0; }
/* end */

--------------------

and then this one:

/usr/bin/ruby1.8 extconf.rb
"-fno-strict-aliasing -g -g -O2  -fPIC $(cflags)"
checking for curl-config... no
checking for main() in -lcurl... no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Provided configuration options:
         --with-opt-dir
         --without-opt-dir
         --with-opt-include
         --without-opt-include=${opt-dir}/include
         --with-opt-lib
         --without-opt-lib=${opt-dir}/lib
         --with-make-prog
         --without-make-prog
         --srcdir=.
         --curdir
         --ruby=/usr/bin/ruby1.8
         --with-curl-dir
         --without-curl-dir
         --with-curl-include
         --without-curl-include=${curl-dir}/include
         --with-curl-lib
         --without-curl-lib=${curl-dir}/lib
         --with-curllib
         --without-curllib
extconf.rb:19:   Can't find libcurl or curl/curl.h (RuntimeError)

   Try passing --with-curl-dir or --with-curl-lib and --with-curl-include
   options to extconf.


On 10-05-18 03:05 PM, Luis Parravicini wrote:
> On Tue, May 18, 2010 at 6:56 PM, Xeno Campanoli / Eskimo North and
> Gmail<xeno.campanoli@gmail.com>  wrote:
>> On 10-05-18 02:35 PM, Xeno Campanoli / Eskimo North and Gmail wrote:
>>>
>>> Two questions:
>>>
>>> 1. How do I install the curl library for Ruby? I thought there was
>>> one...???
>>> 2. How come when I go 'gem search curl' I get:
>>>
>>>> root@rockhopper:~# gem search curl
>>>>
>>>> *** LOCAL GEMS ***
>>>>
>>>>
>>>> root@rockhopper:~#
>>>
>>> ???
>>>
>> I just got the following responses trying to install curb and curl-multi:
>>
>> # gem install curl-multi
>> Building native extensions.  This could take a while...
>> ERROR:  Error installing curl-multi:
>>         ERROR: Failed to build gem native extension.
>>
>> /usr/bin/ruby1.8 extconf.rb
>> extconf.rb:1:in `require': no such file to load -- mkmf (LoadError)
>>         from extconf.rb:1
>>
>>
>> Gem files will remain installed in /var/lib/gems/1.8/gems/curb-0.7.1 for
>> inspection.
>> Results logged to /var/lib/gems/1.8/gems/curb-0.7.1/ext/gem_make.out
>> root@rhaptools:~# gem install curb
>> Building native extensions.  This could take a while...
>> ERROR:  Error installing curb:
>>         ERROR: Failed to build gem native extension.
>>
>> /usr/bin/ruby1.8 extconf.rb
>> extconf.rb:1:in `require': no such file to load -- mkmf (LoadError)
>>         from extconf.rb:1
>>
>>
>> Gem files will remain installed in /var/lib/gems/1.8/gems/curb-0.7.1 for
>> inspection.
>> Results logged to /var/lib/gems/1.8/gems/curb-0.7.1/ext/gem_make.out
>
> You should try to search the forum first for the answer:
> http://www.google.com/search?hl=en&q=`require'%3A+no+such+file+to+load+--+mkmf+(LoadError)+site%3Aruby-forum.com
> Anyway, you need the ruby development packages. In ubuntu / debian its
> named ruby1.8-dev (or ruby1.9-dev)
>
> Bye
>
>


-- 
"It's the preponderance, stupid!" - Professor Stephen Schneider, IPCC member