Aide installation sur mandrake 10.1

Bonjour

J'essai d'installer un logiciel; mfold et lorsque je tape make install et bien linstall se termine avec des erreurs, par exemple:
c++/algorithm.cpp:4201: error: `strlen' undeclared (first use this function)
c++/algorithm.cpp: In function `void ctout(structure*, char*)':
c++/algorithm.cpp:4277: error: `strcpy' undeclared (first use this function)
c++/algorithm.cpp:4285: error: `strcat' undeclared (first use this function)
c++/algorithm.cpp: In function `void linout(structure*, char*)':
c++/algorithm.cpp:4371: error: `strcpy' undeclared (first use this function)
c++/algorithm.cpp:4375: error: `ofstream' undeclared (first use this function)
c++/algorithm.cpp:4375: error: expected `;' before "out"
c++/algorithm.cpp:4380: error: `out' undeclared (first use this function)
c++/algorithm.cpp: In function `void digit(int, int, int, arraystruct*)':
c++/algorithm.cpp:4554: error: `strcpy' undeclared (first use this function)
c++/algorithm.cpp:4556: error: `strlen' undeclared (first use this function)
c++/algorithm.cpp:4565: error: `strcmp' undeclared (first use this function)
c++/algorithm.cpp: In function `void sortstructures(structure*)':


Pouvez vous me debloquer SVP.....
Merci