5 POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/shmat.html}
9 Portability problems fixed by Gnulib:
13 Portability problems not fixed by Gnulib:
16 This function is missing on some platforms:
19 Attempts to @code{shmat} into a previously malloc-ed region fail on SunOS 4,
20 with @code{errno} set to @code{EINVAL}, even if there is an @code{munmap} call
23 On Linux, the flag @code{SHM_REMAP} is needed in order to force @code{shmat}
24 to replace existing memory mappings in the specify address range. On other
25 platforms, it is not needed.