Change `Building.make` and `Building.configure` to raise a `CalledProcessError` when the underlying command's `returncode` is not 0.
Handle all calls inside of `shared.py` to ignore the error, so behavior does not change.
Handle error in `emmake` and `emconfigure`, so these exit with the `returncode` of the underlying command.
Change to fit in with Alon's coding style.
Explicitly refer to CalledProcessError with its package name.
do not swallow exceptions in invoke_* that are not C++ exceptions or longjmp
[libcextra] add isw* classification functions.
[libcextra] wctrans and friends.
[libcextra] Add wcwidth, wcswidth.
Bump version.
This header is <arpa/inet.h>, not <net/arpa/...>
Use va_copy (C99) instead of __va_copy (GNU ext).

musl libc headers don't have __va_copy as it is a GNU extension
and hasn't been needed for over a decade.
Include <stdint.h> to use int64_t.
Use the standard int64_t rather than __int64_t.
update benchmarks
only show landingpad warnings in VERBOSE mode
ERROR_ON_UNRESOLVED_SYMBOLS option
Merge pull request #1109 from waywardmonkeys/implement-wctype

[libcextra] Extend wide char support
Merge pull request #1110 from waywardmonkeys/fix_test_799_include_path

This header is <arpa/inet.h>, not <net/arpa/...>
Merge pull request #1111 from waywardmonkeys/use_va_copy

Use va_copy (C99) instead of __va_copy (GNU ext).
Merge pull request #1113 from waywardmonkeys/missing-stdint-includes

Include <stdint.h> to use int64_t.
Merge pull request #1114 from waywardmonkeys/wrong-int64-type

Use the standard int64_t rather than __int64_t.