Move alloca handling before bytecode construction
so that VAX C won't need two different values for LIBS. Eliminate a
comment about make-like functionality that referred to a capability
which has not been implemented.
From-SVN: r5706
(bc_generate): New VMS DCL function. Takes a BC
header file that needs to be generated, and builds it.
Compile entries listed in BI_ALL.OPT, and then call
bc_generate for every header file listed in BC_ALL.OPT
From-SVN: r5553
change /include and -I values from [.config] to [.config.] (this
trailing period works with GNU C's preprocessor but not with VAX C's).
From-SVN: r3375
