Problems with installing the ruby libnet module

Hi,
I tried to install the Ruby Libnet module from
http://rubyforge.org/projects/ruby-libnet/ . So I downloaded it with svn
update to my local machine and wanted to install it with:ruby extconf.rb
.
But this just gives me an error:

ruby extconf.rb

checking for main() in -lnet… no
Dependency failed
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.

Provided configuration options:
–with-opt-dir
–without-opt-dir
–with-opt-include
–without-opt-include=${opt-dir}/include
–with-opt-lib
–without-opt-lib=${opt-dir}/lib
–with-make-prog
–without-make-prog
–srcdir=.
–curdir
–ruby=/usr/bin/ruby1.8
–with-netlib
–without-netlib

cat mkmf.log

have_library: checking for main() in -lnet… -------------------- no

“gcc -o conftest -I. -I/usr/lib/ruby/1.8/i486-linux -I. -Wall -g
-fno-strict-aliasing -O2 -fPIC conftest.c -L”/usr/lib" -rdynamic
-Wl,-export-dynamic -lruby1.8-static -lnet -lpthread -ldl -lcrypt
-lm -lc"
/usr/bin/ld: cannot find -lnet
collect2: ld gab 1 als Ende-Status
zurückchecked program was:
/* begin /
1: /top/
2: int main() { return 0; }
3: int t() { void ((volatile p)()); p = (void (()()))main; return 0; }
/
end */

“gcc -o conftest -I. -I/usr/lib/ruby/1.8/i486-linux -I. -Wall -g
-fno-strict-aliasing -O2 -fPIC conftest.c -L”/usr/lib" -rdynamic
-Wl,-export-dynamic -lruby1.8-static -lnet -lpthread -ldl -lcrypt
-lm -lc"
/usr/bin/ld: cannot find -lnet
collect2: ld gab 1 als Ende-Status
zurückchecked program was:
/* begin /
1: /top/
2: int main() { return 0; }
3: int t() { main(); return 0; }
/
end */

so it seems I’m missing the lnet library ?!?!? But what is this and any
idea how to install it on linux (ubuntu) ?


greets
(
)
(
/\ .-"""-. /
//\/ , //\
|/| ,;;;;;, |/|
//\;-"""-;///\
// / . / \
(| ,-| \ | / |-, |)
//__\.-.-./__\
// /.-(() ())-.\ \
(\ |) ‘—’ (| /)
(| |)
jgs ) (/

one must still have chaos in oneself to be able to give birth to a
dancing star

got some help elsewhere:

one needs libnet1-dev to be installed to get it compiled correctly :slight_smile:


greets
(
)
(
/\ .-"""-. /
//\/ , //\
|/| ,;;;;;, |/|
//\;-"""-;///\
// / . / \
(| ,-| \ | / |-, |)
//__\.-.-./__\
// /.-(() ())-.\ \
(\ |) ‘—’ (| /)
(| |)
jgs ) (/

one must still have chaos in oneself to be able to give birth to a
dancing star

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