compiling pegasos issue

[abdullah87]

when I write make, I get the following message

g++ -Wall -O3 -c cmd_line.cc
In file included from cmd_line.cc:11:
cmd_option.h: In static member function ‘static learning::option_type_traits::option_type learning::option_type_traits::from_string(char_)’:
cmd_option.h:62: error: ‘strtol’ was not declared in this scope
cmd_option.h: In static member function ‘static learning::option_type_traits::option_type learning::option_type_traits::from_string(char_)’:
cmd_option.h:69: error: ‘strtoul’ was not declared in this scope
cmd_option.h: In static member function ‘static learning::option_type_traits::option_type learning::option_type_traits::from_string(char_)’:
cmd_option.h:83: error: ‘strtod’ was not declared in this scope
make: *_* [cmd_line.o] Error 1

[albertotb]

You can find the solution here

http://lizhonghua.wordpress.com/2011/10/13/fix-pegasos-compiling-error-on-unbuntu/