Hello, I am currently not able to instal mongrel, I run a Linux Ubuntu10.04system with Gems 1.3.7 when I do a “sudo gem install mongrel” I get thissequence of messages:$ sudo gem install mongrelBuilding native extensions. This could take a while…ERROR: Error installing mongrel:
ERROR: Failed to build gem native extension.
/usr/local/bin/ruby extconf.rb checking for main() in -lc… yescreating Makefile
makegcc -I. -I/usr/local/include/ruby-1.9.1/i686-linux-I/usr/local/include/ruby-1.9.1/ruby/backward-I/usr/local/include/ruby-1.9.1 -I.
You are watching: Error: failed to build gem native extension.
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-D_FILE_OFFSET_BITS=64 -fPIC -O3-ggdb-Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith-Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -ohttp11.o-c http11.chttp11.c: In function http_field:http11.c:70: warning: format not a string literal and no formatargumentshttp11.c:71: warning: format not a string literal and no formatargumentshttp11.c:77: error: struct RString has no member named ptrhttp11.c:77: error: struct RString has no member named lenhttp11.c: In function request_uri:http11.c:102: warning: format not a string literal and no formatargumentshttp11.c: In function fragment:http11.c:113: warning: format not a string literal and no formatargumentshttp11.c: In function request_path:http11.c:124: warning: format not a string literal and no formatargumentshttp11.c: In function query_string:http11.c:135: warning: format not a string literal and no formatargumentshttp11.c: In function header_done:http11.c:172: error: struct RString has no member named ptrhttp11.c:172: error: struct RString has no member named ptrhttp11.c:172: error: struct RString has no member named ptrhttp11.c:174: error: struct RString has no member named ptrhttp11.c:176: error: struct RString has no member named ptrhttp11.c:177: error: struct RString has no member named lenhttp11.c: In function HttpParser_execute:http11.c:298: error: struct RString has no member named ptrhttp11.c:299: error: struct RString has no member named lenhttp11.c:307: warning: format not a string literal and no formatargumentsmake: ***
Gem files will remain installed in/usr/local/lib/ruby/gems/1.9.1/gems/mongrel-1.1.5 for inspection.Results logged to/usr/local/lib/ruby/gems/1.9.1/gems/mongrel-1.1.5/ext/http11/gem_make.out
Would you please help me?Thank you in advance for your valuable time.
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domain.invalid wrote:
Hello, I am currently not able to instal mongrel, I run a Linux Ubuntu 10.04system with Gems 1.3.7 when I do a “sudo gem install mongrel” I get thissequence of messages:
$ sudo gem install mongrelgcc -I. -I/usr/local/include/ruby-1.9.1/i686-linux-I/usr/local/include/ruby-1.9.1/ruby/backward-I/usr/local/include/ruby-1.9.1 -I. -D_FILE_OFFSET_BITS=64 -fPIC -O3 -ggdb-Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith-Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -o http11.o-c http11.c/usr/local/lib/ruby/gems/1.9.1/gems/mongrel-1.1.5/ext/http11/gem_make.out
Would you please help me?
Mongrel 1.1.5 is not compatible with Ruby 1.9.x
You need to install the pre-release version:
gem install mongrel –pre
Luis L.AREA 17
Perfection in design is achieved not when there is nothing more to add,but rather when there is nothing more to take away.Antoine de Saint-Exupry
I was racking my brain around with this one for a while and finally gotit working on Ubuntu 10.10…
$ cd /var/lib/gems/1.9.1/cache #it could be 1.9.1 or another directory#depending on how you intalled ruby
$ pwd #make damn sure you are in the right one

/var/lib/gems/1.9.1/cache/
$ sudo rm *
$ gem install mongrel -v 1.2.0.pre2 –pre –source http://rubygems.org
I am pretty sure the post above will work too i.e$ gem install mongrel –pre
I didn’t get a chance to try it but the key is if your having problemseven with the –pre its because gems is looking in its cache files tosave you time and thus –pre doesn’t help