Hpricot 0.8.1 on ruby 1.8.5

17 comments ↓

#1 Dan P on 07.07.09 at 1:07 am

I am encountering this same problem w/ the hpricot (0.8.1) library in my environment (Ruby 1.8.5). Attempted your solution. All was going well until I tried to make & install the new package (final step). Then I received the following:

[root@XXXXXXXX hpricot-0.8.1]# gem install pkg/hpricot-0.8.1.gem
Building native extensions. This could take a while…
ERROR: Error installing pkg/hpricot-0.8.1.gem:
ERROR: Failed to build gem native extension.

/usr/bin/ruby extconf.rb
checking for main() in -lc… yes
creating Makefile

make
gcc -I. -I. -I/usr/lib64/ruby/1.8/x86_64-linux -I. -fPIC -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector –param=ssp-buffer-size=4 -m64 -mtune=generic -Wall -fPIC -c hpricot_css.c
hpricot_css.rl:89: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘hpricot_css’
make: *** [hpricot_css.o] Error 1

Gem files will remain installed in /usr/lib64/ruby/gems/1.8/gems/hpricot-0.8.1 for inspection.
Results logged to /usr/lib64/ruby/gems/1.8/gems/hpricot-0.8.1/ext/hpricot_scan/gem_make.out

#2 Vitalie Cherpec on 07.07.09 at 2:51 pm

Dou you have ragel installed ?

[root@silver hpricot-0.8.1]# ragel –version
Ragel State Machine Compiler version 6.3 August 2008
Copyright (c) 2001-2007 by Adrian Thurston

Try to run ‘make clean && make’ in ‘ext/hpricot_scan’ and then repeat the last step.

#3 Jed on 07.17.09 at 10:12 pm

This solution worked for me as well.
Only difference is that I had to use RARRAY_PTR instead of RARRAYPTR.
Some system info:
CentOS 5
Ragel v6.5
Ruby 1.8.5
RubyGems 1.3.1

#4 Jim H on 07.27.09 at 2:34 pm

I had the same issue as Dan P. This is the output after doing the make clean && make in the scan directory.

Any ideas? (ruby 1.8.5 / centos 5.3)

-bash-3.2# gem install pkg/hpricot-0.8.1.gem
Building native extensions. This could take a while…
ERROR: Error installing pkg/hpricot-0.8.1.gem:
ERROR: Failed to build gem native extension.

/usr/bin/ruby extconf.rb install pkg/hpricot-0.8.1.gem
checking for main() in -lc… yes
creating Makefile

make
gcc -I. -I. -I/usr/lib/ruby/1.8/i386-linux -I. -fPIC -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector –param=ssp-buffer-size=4 -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tables -Wall -fno-strict-aliasing -fPIC -c hpricot_scan.c
hpricot_scan.rl: In function ‘our_rb_hash_lookup’:
hpricot_scan.rl:169: warning: implicit declaration of function ‘st_lookup’
hpricot_scan.rl: In function ‘make_hpricot_struct’:
hpricot_scan.rl:693: warning: implicit declaration of function ‘RARRAY_PTR’
hpricot_scan.rl:693: error: subscripted value is neither array nor pointer
make: *** [hpricot_scan.o] Error 1

Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/hpricot-0.8.1 for inspection.
Results logged to /usr/lib/ruby/gems/1.8/gems/hpricot-0.8.1/ext/hpricot_scan/gem_make.out

#5 Dave on 08.04.09 at 1:02 am

gem install ragel
ERROR: could not find gem ragel locally or in a repository
???

#6 Vitalie Cherpec on 08.04.09 at 10:35 am

You need to install ragel, if you are using linux you can find RPM package for your distribution on http://rpm.pbone.net .

#7 開発(等)の日記» Blog Archive » hpricotインストールではまる on 08.13.09 at 5:58 pm

[...] 直接gemファイルを指定してインストールを試みるものの、なぜかうまく行かない。 上記のblogで紹介されていたHpricot 0.8.1 on ruby 1.8.5 | Penguin on Railsを参考に下記の通り実行することでインストールできた。 [...]

#8 Thierry Thelliez on 08.18.09 at 4:10 am

Same comment (and same configuration) as Jed about RARRAY_PTR instead of RARRAYPTR.

Just change ruby_macros.h to:

#ifndef __RUBY_MACROS__
#define __RUBY_MACROS__

#include

#ifndef RARRAY_PTR
# define RARRAY_PTR(v) RARRAY(v)->ptr
#endif
#endif

#9 Adam Florin on 09.02.09 at 9:38 pm

Thanks for this! I was able to fix a very similar problem. In my case I was getting:

hpricot_scan.rl:181: warning: implicit declaration of function ‘RSTRUCT_PTR’

…followed by a flood of “subscripted value is neither array nor pointer” errors. So in my ruby_macros.h file, I put:

#ifndef RSTRUCT_PTR
# define RSTRUCT_PTR(v) RSTRUCT(v)->ptr
#endif

And it worked!

(I also had to install Ragel 6.5 from source as apt-get in Ubuntu Dapper would only install 5.1. This is w/ Ruby 1.8.4, RubyGems 1.3.5, and Hpricot 0.8.1.)

#10 Adam Florin on 09.03.09 at 12:21 am

Actually, scratch that; it _installed_ successfully, but once I tried to execute Hpricot code in irb, it bailed with an “undefined symbol: RSTRING_PTR” error.

So, I started my Ruby install from scratch, building 1.8.6 from source rather than sticking with the 1.8.4 apt-get offered… A few headaches later, everything works!

#11 J. Adam Moore on 10.13.09 at 10:57 am

sudo apt-get install ruby1.8-dev

worked for me.

#12 nick on 10.29.09 at 12:35 pm

http://github.com/defunkt/hpricot

that worked on 1.8.5

#13 Leyendo APIs desde Rails | alejandro corpeño on 11.13.09 at 2:12 am

[...] la solución en un blog, el problema era que la versión de Ruby bajo la que operan los grid containers es la 1.8.5 y para [...]

#14 Tobias Overkamp on 11.23.09 at 6:30 pm

Hi,
for me it worked after manual installation of ragel (source code) and changing the ruby_macros.h to

#ifndef __RUBY_MACROS__
#define __RUBY_MACROS__

#include

#ifndef RARRAYPTR
# define RARRAYPTR(v) RARRAY(v)->ptr
#endif

#ifndef RARRAY_PTR
# define RARRAY_PTR(v) RARRAY(v)->ptr
#endif

#ifndef RSTRUCT_PTR
# define RSTRUCT_PTR(v) RSTRUCT(v)->ptr
#endif

#endif

After this I did the sed from above and performed a
ruby setup.rg in the gem-root. Did this again and then 2 times a “rake install” in the gem-root.

Strangely it did not work the 1st time therefore I repeated both “installs”

Thanks for your efforts!

CentOS release 4.3 (Final), ruby 1.8.7 (Source)

#15 Tobias Overkamp on 01.19.10 at 4:14 pm

Correction to the comment above:

1) gem install hpricot
2) cd $GEM_SOURCE (see from error message above)
3) cd ext/hpricot_scan
4) sed -i ’s,#include ,#include “ruby_macros.h”,g’ *.h *.c *.rl
5) vi ruby_macros.h
#ifndef __RUBY_MACROS__
#define __RUBY_MACROS__

#include <ruby.h>

#ifndef RARRAYPTR
# define RARRAYPTR(v) RARRAY(v)->ptr
#endif

#ifndef RARRAY_PTR
# define RARRAY_PTR(v) RARRAY(v)->ptr
#endif

#ifndef RSTRUCT_PTR
# define RSTRUCT_PTR(v) RSTRUCT(v)->ptr
#endif

#endif
(include “lower-than”ruby.h”greater-than”… dunno if the braces/brackets whatever appear in the comment)
6) cd $GEM_SOURCE (see above)
7) rake install
rake install (still 2 times necessary)

that’s it.

#16 Vitalie Cherpec on 01.19.10 at 5:58 pm

I’ve switched to Nokogiri, it’s more robust and easier to install:

http://nokogiri.org/
http://github.com/tenderlove/nokogiri
http://tenderlovemaking.com/category/computadora/nokogiri/

#17 Ryan Horrisberger on 04.29.10 at 8:18 pm

gem install hpricot -v 0.7

no problem on centos 5

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