I had thought that Automake was smart enough to ignore conditionals around
EXTRA_DIST, so that all files always got distributed regardless of whether
Automake conditionals were set. I was wrong.
This commit removes the --disable-userspace option to "configure", which
put a conditional around most of Makefile.am and thus unintentionally
caused most of the distribution to be left out if --disable-userspace was
specified. The alternative (fixing --disable-userspace) seems like too
much work--it would require pushing "if ENABLE_USERSPACE" down into lots
of subdirectory--and would be difficult to maintain.
The glibc 2.7 headers contain a bug that causes strtok_r() to segfault
in some circumstances. Until now, we have been working around this
problem at each invocation, but this depends on the programmer to remember
to do so each time.
This commit instead adds a shim that adds a work-around to the string.h
header itself, so that it is much more difficult to miss the workaround.
Now the Debian packaging is regularly tested via the autobuilder, so there
is less need to do it from "make distcheck", and not doing it saves time
there.
