Changes:
1. Don't send Connection: close or Connection: Keep-Alive.
    So we will maintain a persistent connection with HTTP 1.1.
2. Close the connection if and only if the server does not send
   Connection: close, and a zero length is received indicated by either
   Content-Length: 0 or a 0 length size in the byte range.
3. Correct i_remaining to deal with file larger than 2GBi.
4. Update i_remaining in Read and OpenWithCookies.
5. Use -1 for uninitialized size so we can tell the difference from a
   zero length result.
Signed-off-by: Rémi Denis-Courmont <rdenis@simphalempin.com>

That commit broke audio sample rate changing.

This reverts commit ddac67aa.

Saves linking against the C++ runtime,
and allows libtool to generate the symbols table properly.

sure if I didn't miss some spots where that was missing). Thanks to
Kevin DuBois for finding the bug. (This should fix some audio
transcoding crashes)

transcode.

if something similar is needed for audio filter2 ... I don't think it
is)

code from ILEoo (not sure what this actually does)

Patch by Rov Juvano. thanks.

This removes dummy wakeups, and fixes a deadlock when quitting while
reading from a FIFO.

to produce well-formed pkg-config files.

Require it in configure as well.