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@@ -0,0 +1,323 @@ +GNU C Library NEWS -- history of user-visible changes. 26 January 1995 + +Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc. +See the end for copying conditions. + +Please send GNU C library bug reports to bug-glibc@prep.ai.mit.edu. + +Version 1.10 + +* The library has changed from using GNU ld symbol aliases to using weak + symbols where available. The ELF object file format supports weak + symbols; GNU ld also supports weak symbols in the a.out format. (There + is also now support for other GNU ld extensions in ELF. Use the + `--with-elf' option to configure to indicate you have elf, and + `--with-gnu-ld' if using GNU ld.) This changed resulted in the deletion + of many files which contained only symbol aliases, reducing the size of + the source and the compiled library; many other files were renamed to + less cryptic names previously occupied by the symbol alias files. + +* The pgrp functions have been regularized, slightly incompatibly but much + less confusingly. The core functions are now `getpgid' and `setpgid', + which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no + argument) and BSD `setpgrp' (identical to `setpgid') functions are + provided for compatibility. There is no longer an incompatible `getpgrp' + with an argument declared under _BSD_SOURCE; no BSD code uses it. + +* The new header file <fts.h> and suite of functions simplify programs that + operate on directory trees. This code comes from 4.4 BSD. + +* Converted to Autoconf version 2, so `configure' has more options. + Run `configure --help' to see the details. + +* The resolver code has been updated from the BIND-4.9.3-BETA14 release. + +* The new function `malloc_find_object_address' finds the starting address + of a malloc'd block, given any address within the block. This can be + useful for debugging. + +* The new functions `strtoq' and `strtouq' parse integer values from + strings, like `strtol' and `strtoul', but they return `long long int' and + `unsigned long long int' values, respectively (64-bit quantities). + +* There is a new malloc debugging hook `__memalign_hook'. + +* There are new typedefs `ushort' for `unsigned short int' and `uint' for + `unsigned int' in <sys/types.h>. These are for compatibility only and + their use is discouraged. + +* The `-lmcheck' library to enable standard malloc debugging hooks is now + done differently, so that it works even without GNU ld. + +Version 1.09 + +* For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'. + +* New header file <fstab.h> and new functions `getfsspec', `getfsent' and + friends, for parsing /etc/fstab. This code comes from 4.4 BSD. + +* The new function `daemon' from 4.4 BSD is useful for server programs that + want to put themselves in the background. + +* Joel Sherrill has contributed support for several standalone boards that + run without an operating system. + +* `printf', `scanf' and friends now accept a `q' type modifier for long + long int as well as `ll'. Formats using these might be `%qu' or `%lld'. + +* All of the code taken from BSD (notably most of the math and networking + routines) has been updated from the BSD 4.4-Lite release. + +* The resolver code has been updated from the BIND-4.9.3-BETA9 release. + +* The new functions `getdomainname' and `setdomainname' fetch or change the + YP/NIS domain name. These are system calls which exist on systems which + have YP (aka NIS). + +* The time zone data files have been updated for the latest international + conventions. + +* The SunRPC programs `portmap' and `rpcinfo' are now installed in + $(sbindir) (usually /usr/local/sbin) instead of $(bindir). + +Version 1.08 + +* The C library now includes support for Sun RPC, from Sun's free + RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs + are included. (There is still no support for YP.) + +* Tom Quinn has contributed a port of the C library to SGI machines running + Irix 4 (mips-sgi-irix4). + +* The new `lockf' function is a simplified interface to the locking + facilities of `fcntl', included for compatibility. + +* New time functions `timegm', `timelocal', and `dysize' for compatibility. + +* New header file <sys/timeb.h> and new function `ftime' for compatibility. + +* New header files <poll.h> and <sys/poll.h> and new function `poll' for + compatibility. + +* The error message printed by `assert' for a failed assertion now includes + the name of the program (if using GNU ld) and the name of the calling + function (with versions of GCC that support this). + +* The `psignal' function is now declared in <signal.h>, not <stdio.h>. + +* The library now includes the <sys/mman.h> header file and memory + management functions `mmap', `munmap', `mprotect', `msync', and + `madvise', on systems that support those facilities. + +* The interface for `mcheck' has changed slightly: the function called to + abort the program when an allocation inconsistency is detected now takes + an argument that indicates the type of failure. The new function + `mprobe' lets you request a consistency check for a particular block at + any time (checks are normally done only when you call `free' or `realloc' + on a block). + +* It is now possible to easily cross-compile the C library, building on one + system a library to run on another machine and/or operating system. All + you need to do is set the variable `HOST_CC' in `configparms' to the + native compiler for programs to run on the machine you are building on (a + few generator programs are used on Unix systems); set `CC' to the + cross-compiler. + +* The new function `fexecve' (only implemented on the GNU system) executes + a program file given a file descriptor already open on the file. + +Version 1.07 + +* Brendan Kehoe has contributed most of a port to the DEC Alpha + running OSF/1 (alpha-dec-osf1). He says it is 75% complete. + +* You can set the variable `libprefix' in `configparms' to specify a prefix + to be prepended to installed library files; this makes it easy to install + the GNU C library to be linked as `-lgnuc' or whatever. + +* The new `stpncpy' is a cross between `stpcpy' and `strncpy': It + copies a limited number of characters from a string, and returns the + address of the last character written. + +* You no longer need to check for whether the installed `stddef.h' is + compatible with the GNU C library. configure now checks for you. + +* You can now define a per-stream `fileno' function to convert the + stream's cookie into an integral file descriptor. + +* ``malloc (0)'' no longer returns a null pointer. Instead, it + allocates zero bytes of storage, and returns a unique pointer which + you can pass to `realloc' or `free'. The behavior is undefined if + you dereference this pointer. + +* The C library now runs on Sony NEWS m68k machines running either + NewsOS 3 or NewsOS 4. + +* The new `syscall' function is a system-dependent primitive function + for invoking system calls. It has the canonical behavior on Unix + systems, including unreliable return values for some calls (such as + `pipe', `fork' and `getppid'). + +* The error code `EWOULDBLOCK' is now obsolete; it is always defined + to `EAGAIN', which is the preferred name. On systems whose kernels + use two distinct codes, the C library now translates EWOULDBLOCK to + EAGAIN in every system call function. + +Version 1.06 + +* The GNU C Library Reference Manual is now distributed with the library. + `make dvi' will produce a DVI file of the printed manual. + `make info' will produce Info files that you can read on line using C-h i + in Emacs or the `info' program. + Please send comments on the manual to bug-glibc-manual@prep.ai.mit.edu. + +* The library now supports SVR4 on i386s (i386-unknown-sysv4). + +* Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2. + +* Jason Merrill has contributed a port to the Sequent Symmetry running + Dynix version 3 (i386-sequent-dynix). + +* The library has been ported to i386s running SCO 3.2.4 (also known as SCO + ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2). + +* New function `memory_warnings' lets you arrange to get warnings when + malloc is running out of memory to allocate, like Emacs gives you. + +* The C library now contains the relocating allocator used in Emacs 19 for + its editing buffers. This allocator (ralloc) minimizes allocation + overhead and fragmentation by moving allocated regions around whenever it + needs to. You always refer to a ralloc'd region with a "handle" (a + pointer to a pointer--an object of type `void **'). + +* There is a new `printf' format: `%m' gives you the string corresponding + to the error code in `errno'. + +* In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s' + or `%[' conversion, but instead of filling in a fixed-sized buffer you + pass, the `a' modifier says to fill in a `char **' you pass with a + malloc'd string. + +* The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and + `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a + name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching. + +* `mkstemp' is a traditional Unix function to atomically create and open a + uniquely-named temporary file. + +Version 1.05 + +* The standard location for the file that says what the local timezone is + has changed again. It is now `/usr/local/etc/localtime' (or more + precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'. + +* The distribution no longer contains any files with names longer than 14 + characters. + +* `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE. + These are set by the new `trusted' and `console' keywords in `/etc/ttys'. + +* New functions `ttyslot' and `syslog' from 4.4 BSD. + +Version 1.04 + +* The configuration process has changed quite a bit. The `configure' + script is now used just like the configuration scripts for other GNU + packages. The `sysdeps' directory hierarchy is much rearranged. + The file `INSTALL' explains the new scheme in detail. + +* The header files no longer need to be processed into ANSI C and + traditional C versions. There is just one set of files to install, and + it will work with ANSI or old C compilers (including `gcc -traditional'). + +* Brendan Kehoe and Ian Lance Taylor have ported the library to the + MIPS DECStation running Ultrix 4. + +* The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries. + Tom Quinn contributed the initial code. The GNU C library can NOT yet be + made itself into a shared library. + +* Yet further improved support for the i386, running 4.3 BSD-like systems + (such as Mach 3 with the Unix single-server), or System V. + +* New function `strncasecmp' to do case-insensitive string comparison + with limited length. + +* New function `strsep' is a reentrant alternative to `strtok'. + +* New functions `scandir' and `alphasort' for searching directories. + +* New function `setenv' is a better interface to `putenv'. + +* Ian Lance Taylor has contributed an implementation of the SVID `ftw' + function for traversing a directory tree. + +* The GNU obstack package is now also part of the C library. + The new function `open_obstack_stream' creates a stdio stream that + writes onto an obstack; `obstack_printf' and `obstack_vprintf' do + formatted output directly to an obstack. + +* Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only), + cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid. + +* `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'. + +* The new functions `strfry' and `memfrob' do mysterious and wonderful + things to your strings. + +* There are some new test programs: test-fseek, testmb, and testrand. + +* Some work has been done to begin porting the library to 4.4 BSD and Linux. + These ports are not finished, but are a good starting place for really + supporting those systems. + +* `/etc/localtime' is now the standard location for the file that says what + the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'. + This follows the general principle that `/etc' is the place for all local + configuration files. + +* The C library header files now use `extern "C"' when used by the C++ + compiler, so the C library should now work with C++ code. + +* The header file <bstring.h> is gone. <string.h> now declares bcopy, + bcmp, bzero, and ffs. + +* Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting + function which uses the `merge sort' algorithm, and is said to be + significantly faster than the old GNU `qsort' function. Merge sort is + now the standard `qsort' function. The new algorithm can require a lot + of temporary storage; so, the old sorting function is called when the + required storage is not available. + +* The C library now includes Michael Glad's Ultra Fast Crypt, which + provides the Unix `crypt' function, plus some other entry points. + Because of the United States export restriction on DES implementations, + we are distributing this code separately from the rest of the C library. + There is an extra distribution tar file just for crypt; it is called + `glibc-VERSION-crypt.tar.Z', e.g. `glibc-1.04-crypt.tar.Z'. You can just + unpack the crypt distribution along with the rest of the C library and + build; you can also build the library without getting crypt. Users + outside the USA can get the crypt distribution via anonymous FTP from + ftp.uni-c.dk [129.142.6.74], or another archive site outside the U.S. + +* The code and header files taken from 4.4 BSD have been updated with the + latest files released from Berkeley. + +---------------------------------------------------------------------- +Copyright information: + +Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc. + + Permission is granted to anyone to make or distribute verbatim copies + of this document as received, in any medium, provided that the + copyright notice and this permission notice are preserved, + thus giving the recipient permission to redistribute in turn. + + Permission is granted to distribute modified versions + of this document, or of portions of it, + under the above conditions, provided also that they + carry prominent notices stating who last changed them. + +Local variables: +version-control: never +end: |