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This change makes embedding nng + nggpp (or other projects depending on
nng) in cmake easier. The header files are moved to a separate include
directory. This also makes installation of the headers easier, and
allows clearer identification of private vs public heade files.
Some additional cleanups were performed by @gedamore, but the main
credit for this change belongs with @gregorburger.
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The fix for #715 to address const is still not quite right.
In ISO C, the argv array is just char **. getopt() in POSIX uses
char *const[]. That part is right, but we should then not pass
const char ** in calls. Furthermore, really the optarg should also
not be constified.
This aligns us closer to getopt() and leads to the fewest problems.
This does represent a slight breaking change, but as old code should
still compile and run, we don't think we should bump the API version
for this change. Furthermore, we don't think anyone else is actually
using this API yet.
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fixes #397 Need to cast zoneid
fixes #395 sun is predefined on illumos/Solaris
fixes #394 alloca needs to #include <alloca.h>
fixes #399 Cannot use SVR4.2 specific msghdr
fixes #402 getpeerucred needs a NULL initialized ucred
fixes #403 syntax error in posix_tcp - attempt to return void
fixes #407 illumos getegid wrong
fixes #406 nni_idhash_count is dead code
fixes #404 idhash typedef redeclared
fixes #405 warning: newline not last character in file
This is basically a slew of related bug fixes required to make this
work on illumos. Note that the fixes are not "complete", because
more work is required to support port events given that epoll is busted
on illumos.
We also fixed a bunch of things that aren't actually "bugs" per se, but
really just warnings. Silencing them makes things better for everyone.
Apparently not all compilers are equally happy with redundant (but
otherwise identical) typedefs; we use structs in some places instead of
shorter type names to silence these complaints.
Note that IPC permissions (the mode bits on the socket vnode) are not
validated on SunOS systems. This change includes documentation to reflect
that.
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We have implemented this alternative to getopt() so that we can
create nngcat. The reason we did not just use getopt() is that
getopt() does not understand long options (which nanocat uses, and
we want to preserve for compatibility) and getopt() is not available
on Windows (and possibly other non-POSIX platforms.)
This function handles long and short options, but does not have support
for option clustering. It also is threadsafe & reentrant, unlike getopt.
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