Implicit declaration of strlcpy and strlcat even with "string.h" included Gcc throws an error when I try to call the functions `strlcpy` or `strlcat` in a C file: error : implicit declaration of strlcpy error : implicit declaration of strlcat In what library can I find those functions, and their man page? I included `string.h` but it doesn't change anything. I'm running Linux Mint 17.2 and gcc 4.8.4

On Ubuntu, Mint, and relatives, `strlcpy` and `strlcat` are available in the `libbsd-dev` package. Run


sudo apt-get install libbsd-dev


This will install the libraries, header files, and man pages.

To use the functions from C code, add the line


#include


to your files, and add `-lbsd` , or the more portable `$(pkg-config --libs libbsd)` , to your `gcc` command line to link the library.