implicit declaration using -std=c99

Question

I\'m getting this warning: (-std=c99 -pedantic)

warning: implicit declaration of function ‘strndup’ [-Wimplicit-function-declaration]
         


        

Answer 1

strndup is a GNU extension, so you need to compile with -D_GNU_SOURCE on the command line, or stick a #define _GNU_SOURCE 1 in your source files before the #include lines