Re: pre-build advice

[Jeffrey A Law <law@cygnus.com>]

  In message < 9805101810.AA37350@rios1.watson.ibm.com >you write:
  > >>>>> Jeffrey A Law writes:
  > 
  > Jeff> You can also set up a "single tree" build environment which can
  > Jeff> be used to build egcs, gdb, binutils and other tools from a 
  > Jeff> single source tree with a single "make" command.  This kind of
  > Jeff> setup is easier for folks building cross compilers.
  > 
  > 	While it is possible to combine egcs, binutils, newlib, gdb,
  > etc. into a single tree.  Including gdb seems to be discouraged because
  > both it and binutils rely upon bfd in subtle ways.  One can run into
  > problems because of source skew between binutils and gdb as only one
  > package can be the source for the bfd library.  binutils is more integral
  > in the toolchain, so it usually is better to include binutils in the
  > "single tree" and build gdb separately.
This is certainly an issue.  And I agree about the "solution" to
kick gdb out if there are bfd incompatibilties.


  > 	Cygnus does not have this problem because they can access their
  > development tree in which bfd is not forked for a particular package.
Yup.

Another solution is to pick up gdb & binutils snapshots to avoid bfd
version skew, but that's pretty high maintenance.

jeff