Previously we would detect the system openssl on OSX, and then fail
to use it, since we required Open 1.0.1 or later. That's silly!
Instead of looking for RAND_add(), look for TLSv1_1_method(): it was
introduced in 1.0.1, and is also present in LibreSSL.
Also, add the hombebrew path to our search path here.
Fixes bug 23602; bugfix on 0.2.7.2-alpha.
Add a detection for the KIST scheduler in our build system and set
HAVE_KIST_SUPPORT if available.
Adapt the should use kist function with this new compile option.
Signed-off-by: David Goulet <dgoulet@torproject.org>
The GNU C Library (glibc) offers an function which allocates the
necessary memory automatically [0]. When it is available, we use that.
Otherwise we depend upon the `getcwd` function which requires a
preallocated buffer (and its size). This function was used incorrectly
by depending on the initial buffer size being big enough and otherwise
failing to return the current working directory. The proper way of
getting the current working directory requires a loop which doubles the
buffer size if `getcwd` requires it. This code was copied from [1] with
modifications to fit the context.
[0] https://www.gnu.org/software/hurd/hurd/porting/guidelines.html
[1] http://pubs.opengroup.org/onlinepubs/9699919799/functions/getcwd.html
Many places in our code assume that uint8_t is the same type as
unsigned char. Test this assumption in the configure script. This is
important because of the privileged aliasing properties of character
types in C.
Fixes#22410.
This adds a couple of configure commands to control whether we're
requiring all dependencies to be available locally (default) or not
(--enable-cargo-online-mode). When building from a tarball, we require
the RUST_DEPENDENCIES variable to point to the local repository of
crates. This also adds src/ext/rust as a git submodule that contains
such a local repository for easy setup.
