# Problem installing ferret on ubuntu 8.04

**URL:** <https://www.ruby-forum.com/t/problem-installing-ferret-on-ubuntu-8-04/144450>\
**Category:** Ferret\
**Created:** [July 29, 2008, 7:32pm UTC](https://www.ruby-forum.com/t/problem-installing-ferret-on-ubuntu-8-04/144450 "2008-07-29T19:32:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![slum](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/f1d935/32.png) [@slum](https://www.ruby-forum.com/u/slum)\
**Post date:** [July 29, 2008, 7:32pm UTC](https://www.ruby-forum.com/t/problem-installing-ferret-on-ubuntu-8-04/144450/1 "2008-07-29T19:32:13Z")

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Hi all,

I’ve some errors while installing Ferret on ubuntu ; after making  
sudo gem install ferret  
and choose the last one (0.11.6 (ruby))

## I have this message :

ruby extconf.rb install ferret  
creating Makefile

## make cc -I. -I/usr/lib/ruby/1.8/i486-linux -I/usr/lib/ruby/1.8/i486-linux -I. -fPIC -fno-strict-aliasing -g -g -O2 -fPIC -D\_FILE\_OFFSET\_BITS=64 -c api.c api.c:2:43: erreur: stdlib.h : Aucun fichier ou dossier de ce type Dans le fichier inclus à partir de /usr/lib/gcc/i486-linux-gnu/4.2.3/include/syslimits.h:7, à partir de /usr/lib/gcc/i486-linux-gnu/4.2.3/include/limits.h:11, à partir de header.h:2, à partir de api.c:3: /usr/lib/gcc/i486-linux-gnu/4.2.3/include/limits.h:122:61: erreur: limits.h : Aucun fichier ou dossier de ce type api.c: Dans la fonction «SN\_create\_env» : api.c:7: attention : incompatible implicit declaration of built-in function «calloc» api.c:8: erreur: «NULL» undeclared (first use in this function) api.c:8: erreur: (Each undeclared identifier is reported only once api.c:8: erreur: for each function it appears in.) api.c: Dans la fonction «SN\_close\_env» : api.c:47: erreur: «NULL» undeclared (first use in this function) api.c: Dans la fonction «SN\_set\_current» : api.c:65: erreur: «NULL» undeclared (first use in this function) make: \*\*\* [api.o] Erreur 1

Do I miss something ?

Thank you !

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<div class="post-metadata">

**Author:** ![slum](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/f1d935/32.png) [@slum](https://www.ruby-forum.com/u/slum)\
**Post date:** [July 29, 2008, 8:05pm UTC](https://www.ruby-forum.com/t/problem-installing-ferret-on-ubuntu-8-04/144450/2 "2008-07-29T20:05:05Z")

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Found the solution : I missed the libc6-dev package 🙂