5 POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/strdup.html}
7 Gnulib module: strdup or strdup-posix
9 Portability problems fixed by either Gnulib module @code{strdup} or @code{strdup-posix}:
12 This function has no prototype in @code{<string.h>} on some old platforms.
15 Portability problems fixed by Gnulib module @code{strdup-posix}:
18 Upon failure, the function does not set @code{errno} to @code{ENOMEM} on
23 Portability problems not fixed by Gnulib: