GDB writes into its source tree during the build

[Jonathan Kamens]

I checked out a current GDB source tree from
:pserver:address@hidden:/cvs/src and tried to build it.
I got this during the build:

  make[3]: Entering directory `/d/scratch/jik/cygwin-gdb/bfd/po'
  file=/u/jik/cygwin-cvs/src/bfd/po/`echo fr | sed 's,.*/,,'`.gmo \
    && rm -f $file && PATH=../src:$PATH /bin/msgfmt -o $file 
/u/jik/cygwin-cvs/src/bfd/po/fr.po
  error while opening "/u/jik/cygwin-cvs/src/bfd/po/fr.gmo" for writing: 
Permission denied
  make[3]: *** [fr.gmo] Error 1

The process doing the build does not have write access to my source
tree.  It shouldn't need it -- "make all" builds should never write to
the source tree.  If there needs to be code that writes to the source
tree, it needs to be a separate, special-purpose target.