Linecache19 fails to compile with 1.9.3-head

[dblock]

ruby 1.9.3dev (2011-05-29 trunk 31764) [i686-linux]

vm_core seems no more

dblock@dblock-magenta:/source/Gravity/dblock2$ cat ./ruby-1.9.2-p180/include/ruby-1.9.1/ruby-1.9.2-p180/vm_core.h
cat: ./ruby-1.9.2-p180/include/ruby-1.9.1/ruby-1.9.2-p180/vm_core.h: No such file or directory
dblock@dblock-magenta:/source/Gravity/dblock2$ cat /home/dblock/.rvm/gems/ruby-head/gems/linecache19-0.5.12/ext/trace_nums/mkmf.log
have_header: checking for vm_core.h... -------------------- no

"gcc -o conftest -I/home/dblock/.rvm/rubies/ruby-head/include/ruby-1.9.1/i686-linux -I/home/dblock/.rvm/rubies/ruby-head/include/ruby-1.9.1/ruby/backward -I/home/dblock/.rvm/rubies/ruby-head/include/ruby-1.9.1 -I. -D_FILE_OFFSET_BITS=64 -O3 -ggdb -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -fPIC conftest.c -L. -L/home/dblock/.rvm/rubies/ruby-head/lib -Wl,-R/home/dblock/.rvm/rubies/ruby-head/lib -L. -rdynamic -Wl,-export-dynamic -Wl,-R -Wl,/home/dblock/.rvm/rubies/ruby-head/lib -L/home/dblock/.rvm/rubies/ruby-head/lib -lruby-static -lpthread -lrt -ldl -lcrypt -lm -lc"
checked program was:
/* begin /
1: #include "ruby.h"
2:
3: int main() {return 0;}
/ end */

"gcc -E -I/home/dblock/.rvm/rubies/ruby-head/include/ruby-1.9.1/i686-linux -I/home/dblock/.rvm/rubies/ruby-head/include/ruby-1.9.1/ruby/backward -I/home/dblock/.rvm/rubies/ruby-head/include/ruby-1.9.1 -I. -D_FILE_OFFSET_BITS=64 -O3 -ggdb -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -fPIC conftest.c -o conftest.i"
conftest.c:3:21: fatal error: vm_core.h: No such file or directory
compilation terminated.
checked program was:
/* begin /
1: #include "ruby.h"
2:
3: #include <vm_core.h>
/ end */

---

[mark-moseley]

Works fine for me. Are you using the --with-ruby-include=/ parameter?

[masterkain]

I'm using RVM, bundler and ruby 1.9.3, no flags, same problem as above.

ruby 1.9.3dev (2011-06-22 trunk 32202) [x86_64-darwin10.7.0]

[andrerocker]

wrong way: cat ./ruby-1.9.2-p180/include/ruby-1.9.1/ruby-1.9.2-p180/vm_core.h
right way: cat ./ruby-1.9.2-p180/include/ruby-1.9.1/1.9.3dev/vm_core.h

[gnufied]

I think the problem is back for 1.9.3-preview1. @mark-moseley can you update ruby preview YAML so as, linecache works on 1.9.3 (if thats the problem afaik).

[svenfuchs]

i'm seeing the same issue on 1.9.3preview1

[vwall]

Had to use the --with-ruby-include "gem install linecache19 -- --with-ruby-include=$rvm_path/src/ruby-1.9.3-preview1"

[bhavinkamani]

It compiles with gem install linecache19 -- --with-ruby-include=$rvm_path/src/ruby-1.9.3-preview1. However, on irb when I do "require "linecache19" it throws following error.

I am getting similar error for ruby-debug on 1.9.3-preview

[gnufied]

Bhavin, your error suspiciously looks like, as if it got compiled against wrong version of ruby or something.

[bhavinkamani]

nopes.. I have compiled it against right version. Here's the dump of my command sequence.

[mike-park]

Ditto, ruby 1.9.3dev (2011-07-31 revision 32789) [x86_64-darwin11.0.0]
with errors

[janv]

Having the same issue on rvm 1.9.3-preview1 :(

[masterkain]

dlopen(/Users/kain/.rvm/gems/ruby-1.9.3-preview1/gems/ruby-debug-base19-0.11.25/lib/ruby_debug.bundle, 9): Symbol not found: _ruby_current_thread
  Referenced from: /Users/kain/.rvm/gems/ruby-1.9.3-preview1/gems/ruby-debug-base19-0.11.25/lib/ruby_debug.bundle
  Expected in: flat namespace

[vwall]

Actually now that I think about it I used this to install linecache
gem install ruby-debug19 -- --with-ruby-include=$rvm_path/src/ruby-1.9.3-preview1

[nevir]

If you're using bundler, you can set it up to handle this whenever the ruby version changes (if you want to stay on the bleeding edge):

bundle config build.linecache19 --with-ruby-include=\$rvm_path/src/\$rvm_ruby_string
bundle config build.ruby-debug-base19 --with-ruby-include=\$rvm_path/src/\$rvm_ruby_string

And as a bonus, if you're also using perftools:

bundle config build.ruby-debug19 --with-opt-include=\$rvm_path/src/\$rvm_ruby_string

(Note, I am also getting the "Symbol not found: _ruby_current_thread" error whenever actually trying to load ruby-debug or linecache)

[bhavinkamani]

@nevir : Thats true. I can compile and install these gems without any issue after setting bundle config for these gems. However, it breaks with Symbol not found: _ruby_current_thread when I try to use them in irb.

[masterkain]

Notes for Darwin ( Mac OS X )
  For Lion, Rubies should be built using gcc rather than llvm-gcc. Since
  /usr/bin/gcc is now linked to /usr/bin/llvm-gcc-4.2, add the following to
  your shell's start-up file: export CC=gcc-4.2
  (The situation with LLVM and Ruby may improve. This is as of 07-23-2011.)

I'm going to try and see if this resolves the symbol not found error.

[joeperic]

I'm also facing the "fatal error: vm_core.h: No such file or directory" issue. My log was basically the same as OP's. It had this:

checked program was:
/* begin /
1: #include "ruby.h"
2:
3: #include <vm_core.h>
/ end */

[janv]

The Markdown in @joeperic's comment seems broken, should read:

#include "ruby.h"

#include <vm_core.h>

[joeperic]

Yes, thank you janv

[joeperic]

I did something similar to bhavinkamani and it worked. This seems to work: 'gem install linecache19 -- --with-ruby-include=[directory for ruby source]'

[janv]

So, 1.9.3-RC1 is out. I just tried to require linecache19 and this problem still exists :(

But the problem is being worked on, the discussion is here:
mark-moseley/ruby-debug#14
http://redmine.ruby-lang.org/issues/5193

[rubysolo]

fwiw, I've combined solutions from @nevir (setting --with-ruby-include options) and @masterkain (using gcc rather than llvm), and it compiles but still fails with the Symbol not found: _ruby_current_thread when you try to use it. (Lion, 1.9.3-RC1)

[osegrums]

Same error here for:
Using (ruby 1.9.3dev (2011-09-23 revision 33323) [i686-linux])

[osegrums]

Installing gem via bundler.
Gem installation succeeded when using advise from @nevir. Thanks dude.

[gnufied]

Error Symbol not found: _ruby_current_thread is coming because Ruby 1.9.3 has changed visibility of external variables via GCC flag.

[jeremy]

Patch to fix symbol visibility @ ruby/ruby#47

[Mihailoff]

ruby 2.0.0-p0 compatible fork

https://github.com/windwiny/linecache

To install from source code

gem build GEMNAME.gemspec
gem install gemname-version.gem