Solaris fix for large file support.
AC: Don't bother checking for nvcc backend gcc unless nvcc is found.
AC: Drop erroneous use of CFLAGS_EX
SKEY_jtr.h did not have an LF (not even a b0rken Redmond one) at EOF.
Fixes for systems lacking <stdint.h>, including adding SIZE_MAX and UINT32_MAX
needed for escrypt.
Workaround for old gcc having problem with unrarppm.c
AC, large file support bugfix: Move size check for size_t and off_t to after
we have decided on feature macros. They might very well change!
Sparc bugfix (alignment) for mssql12.
AC: Linux 32-bit large file support bugfix.
SKEY valid() fix. It was WAY to promiscuos, locking on header lines in TS.