Tue Dec 5 14:00:17 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>

Tue Dec  5 14:00:17 1995  Roland McGrath  <roland@churchy.gnu.ai.mit.edu>

	* misc/Makefile (headers): Add error.h, err.h.
	(routines): Add error, err.
	(gpl2lgpl): New variable.
	* misc/err.c: New file.
	* misc/err.h: New file.
	* misc/error.c, misc/error.h: New files.

	* sysdeps/mach/hurd/ioctl.c: Fix typo in last change.

	* Makeconfig (+link): Translate libc% from $^, not just libc.a.
	(link-libc): Append $(libc.so-version) to libc.so.
	(built-program-cmd): Fix comma usage.
	* Makerules [libc.so-version] (libc.so$(libc.so-version)): Make a
	symlink to libc.so in the build directory.
	* Rules ($(others) $(tests)): Depend on the library that appears
	in $(link-libc).
	(%.out): Use $(built-program-cmd) in commands.

	* posix/unistd.h [__USE_MISC]: Declare brk, sbrk.

	* sysdeps/generic/setenv.c: Added canonical portability cruft.
	(setenv): Use realloc on LAST_ENVIRON instead of always copying.
	(unsetenv): New function.
	* stdlib/stdlib.h [__USE_BSD]: Declare unsetenv.
	* sysdeps/generic/putenv.c: Rewritten using setenv and unsetenv.

	* libio/Makefile (routines): Remove iofscanf, add iopopen, pclose.