Q:  I obtained the Free Software Foundations libraries described in  ../Objective_C/C++_libraries.rtf, but they won't compile. What do I have to do to get them to compile?

A:  There are a couple of things that you must do in order to compile version 1.37.0 of libg++ on NEXTSTEP.

First, you must turn off the inclusion of libg++'s malloc routines.  You can do this by setting a compiler flag.  Edit the Makefile and search for MALLOC.  Remove the comment # indicator on the line which sets XTRAFLAGS to -DNO_LIBGXX_MALLOC.  It looks like this when you've finished:

# Use this to disable placing libg++ version of malloc in libg++.a
XTRAFLAGS = -DNO_LIBGXX_MALLOC

You should also make this change in the Makefile in the tests directory.

Also, if you are not using gnu make, you should change this line in the same Makefile:

#PWD := $(shell pwd)

to point to the directory in which the sources live.

Next, you must modify the time.h file. There are some conflicts with the time.h file which is shipped with libg++ and the time.h that comes with the NeXT system. Change the first few lines to look like this:

#ifndef time_h
#define time_h 1
#ifdef NeXT
#define _TIME_H 1
#endif

	Modify the Makefile in the src and the tests directory. Set GXX to cc++ and set VERBOSITY_FLAGS to -Wall (remove the -v flag. Changing verbosity isn't necessary, but with -v set you will get lots of useless messages.
	Like this: GXX = cc++ VERBOSITY_FLAGS = -Wall

After doing each of these, the GNU libraries compile on NEXTSTEP.

See also: ../Objective_C/C++_libraries.rtf.

QA702

Valid for 2.0, 3.0