disable test_fcvt in s_0_x
Merge branch 'incoming'
Merge branch 'incoming'
Merge branch 'incoming'
fix test_emscripten_get_now
disable test_stdin in node (temporarily) and v8
Merge branch 'incoming'
Merge branch 'incoming'
Merge branch 'incoming'
Typo fix.
Fix using emcc -E.

We don't want to pass this extra flag to emcc as it breaks when
doing EMCONFIGURE_JS=1 emconfigure ./configure ...
Expand on the instructions for building Python.
Update libc headers to use musl headers.
Update to work with new libc headers.
Fix other.test_embind & other.test_static_link.
Fix time tests.
Add __va_copy as a compat/stdarg.h
Fix fpclassify with musl libc headers.

musl defines __fpclassify, __fpclassifyf, __fpclassifyl while
the old headers used __fpclassifyd for double rather than
__fpclassify.
Provide better impl of __assert_fail().
Bump version for new libc headers.