README.linux

README file for compiling PDP++ under LINUX:

- There are two different Makefile.LINUXxx files, one for gcc 2.9x
  (e.g., RedHat 7.x) and the other for 3.x (e.g., RedHat 8,9+).  You
  need to make the symbolic link for Makefile.LINUX (and LINUXdebug if
  you use that) point to the correct one: .2 or .3.  Use gcc -v to
  find your version.

- IF USING 2.9x, especially under RedHat 7.3 and probably other
  distributions:

  YOU MUST UPDATE THE /usr/include/g++-3/sstream FILE!!!

  The updated file is in pdp++/include/new_sstream_for_gcc_2.9x.h

This is the info from the Makefile.LINUX.2:

# IMPORTANT: the sstream header shipped with red hat 7.3 and probably 
# other distros is broken and must be replaced with:
# include/new_sstream_for_gcc_2.9x.h
# e.g.: cp include/new_sstream_for_gcc_2.9x.h /usr/include/g++-3/sstream
# (as root!)