I assumed it was obvious that you could copy the data, but I believe the intent of the original question was to find an alternative. As far as I know there isn't one. A const is a const, except in C++.
Yes, the intent was to find a way to avoid copying the data.
I was hoping that someone knew a standard way to say "yes, I really do mean to cast away that const," akin to C++ const_cast.
As far as I can tell, the POSIX-mandated declaration of execvp is simply wrong. (SUSv3 even has a comment that essentially admits this fact and then vainly tries to rationalize it. <sigh>)
Basically, there is no const-correct way to invoke execvp using literal strings for argv except to copy the strings. In particular, the FreeBSD implementation of popen(), for example, cannot be compiled with strict warnings.
Tim
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