gem install mongrel fails with ruby 1.9.1

Question

I initiated myself into rails development yesterday. I installed ruby 1.9.1, rubygems and rails. Running `gem install mongrel` worked fine and ostensibly installed mongrel too. I am slightly puzzled because: - script/server starts webrick by default - `which mongrel` returns nothing - `locate mongrel` returns lots of entries like ``` /Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1 /Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib /Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel . . . /usr/local/bin/mongrel_rails /usr/local/lib/ruby/gems/1.9.1/cache/mongrel-1.1.5.gem /usr/local/lib/ruby/gems/1.9.1/doc/actionpack-2.3.2/rdoc/files/lib/action_controller/vendor/rack-1_0/rack/handler/evented_mongrel_rb.html /usr/local/lib/ruby/gems/1.9.1/doc/action…

Accepted Answer

It looks like other people are having problems running Mongrel on Ruby 1.9.

The comment by Ami Mahloof seems like it might be a possible fix:

Here’s What you need to do in order to fix it

here’s the updated instructions:

1) cd /usr/local/lib/ruby/gems/1.9.1/gems/mongrel-1.1.5/ext/http11

2) sudo vi / mate on http11.c and:

replace line 77 with

for(ch = RSTRING_PTR(f), end = ch + RSTRING_LEN(f); ch < end; ch++) {

replace line 172 with

colon = strchr(RSTRING_PTR(temp), ':');

replace line 174 with

rb_hash_aset(req, global_server_name, rb_str_substr(temp, 0, colon - RSTRING_PTR(temp)));

replce line 176,177

rb_str_substr(temp, colon - RSTRING_PTR(temp)+1, RSTRING_LEN(temp)));

replace lines 298 299

dptr = RSTRING_PTR(data);

dlen = RSTRING_LEN(data);

3) save the file, close the vi / textmate

4) sudo ruby extconf.rb && sudo make && sudo make install

5) cd ../../lib/mongrel (or the full path “/usr/local/lib/ruby/gems/1.9.1/gems/mongrel-1.1.5/lib/mongrel”

6) mate / sudo vi handlers.rb

7) fix the case statements in

On lines 208-212, change instances of “: false” to “then false”

8) sudo gem install gem_plugin (else mongrel may hang)

done!

gem install mongrel fails with ruby 1.9.1

Solution

Problem