Merge two free() calls.

A bug report was submitted with a 600 kB ID3 tag that could not be
read by MPD.

This can eliminate the ad-hoc "#ifdef WIN32" and can also support other platforms lacking it as well (including Darwin 9).

This file has been removed in newer MPD versions, so don't care about
it now.

Fixes gcc5 warning.

Fixes a bug that occurs when runing "build.py" from inside the
"android" directory.

Caused a build failure with uClibc because snprintf() was not
available.

Fixes in-tree build when the script is called as "android/build.py"
and not "./android/build.py".

Fixes a problem with the "curl" input plugin: IsEOF() always returns
true because the "open" flag was cleared by
CurlInputStream::RequestDone() when end-of-stream was reached.  This
flag stays false even when seeking to another position has succeeded.

This patch resets the "open" flag to true after seeking successfully.

NetBSD's pthread_setname_np() prototype is incompatible with the rest
of the world, and it requires to pass the string argument as a
non-const pointer.  Instead of working around this misdesign, I hereby
disable the feature on NetBSD.

Add macro HAVE_THREAD_NAME which is set when any method to set the
thread name is available.  Use that macro in FormatThreadName()
instead of just checking for HAVE_PTHREAD_SETNAME_NP.

Return false on error, not nullptr.

New in clang 3.6.

Fixes -Winconsistent-missing-override (clang 3.6).

Return false on error, not nullptr.

Fixes -Winconsistent-missing-override (clang 3.6).

New in clang 3.6.