Add note on likely emerge command for Gentoo in INSTALL
Add ChromeOS CI url
Add ChromeOS install note
Implement fmemopen in terms of funopen where needed and possible.

Currently done only on NetBSD 5, but this should work for other BSDs
and probably Android as well, instead of the libc-internal hacks that
tlsdate currently uses for fmemopen on Android.
Don't clear CFLAGS and LIBS; let user pass them to configure.
Check for <sys/socket.h> in configure.

Avoids redefinition of SHUT_* constants in config.h fragment provided
by AX_PLATFORM.
Implement strnlen locally if the system libc doesn't have it.

Needed for, and currently built only on, NetBSD 5.
Cast char to unsigned char before passing to ctype(3) isXYZ.

The ctype(3) routines take an int, but the only valid arguments are
EOF and values representable as unsigned char.  This is what you get
out of, e.g., getc(3), but an arbitrary value of type char is not OK
because negative values will lead to nasal demons.  Converting an
arbitrary value of type char to unsigned char is OK, since then we
have only non-negative values, and casting that to int makes it
clearer what's going on.
Merge pull request #92 from riastradh/check-for-syssocketh

Check for <sys/socket.h> in configure.
Merge pull request #93 from riastradh/dont-clear-cflags

Don't clear CFLAGS and LIBS; let user pass them to configure.
Merge pull request #94 from riastradh/fix-ctype-casts

Cast char to unsigned char before passing to ctype(3) isXYZ.
Merge pull request #95 from riastradh/implement-fmemopen-with-funopen

Implement fmemopen in terms of funopen where needed and possible.
Merge pull request #96 from riastradh/implement-strnlen

Implement strnlen locally if the system libc doesn't have it.
Update .travis.yml packages
Begin DragonFly BSD porting effort
This allows us to generate Makefiles on DragonFly BSD
Add DragonFly BSD in configure.ac
Merge branch 'master' of github.com:ioerror/tlsdate
Update .travis.yml to reflect correct packages
Add some TARGET_DRAGONFLYBSD goo to automake