| GNU C Library NEWS -- history of user-visible changes. 1997-03-18 |
| |
| Copyright (C) 1992, 93, 94, 95, 96, 97 Free Software Foundation, Inc. |
| See the end for copying conditions. |
| |
| Please send GNU C library bug reports using the `glibcbug' script to |
| <bugs@gnu.ai.mit.edu>. Questions and suggestions should be send to |
| <bug-glibc@prep.ai.mit.edu>. |
| |
| Version 2.1 |
| |
| * An additional locale model to support C++ Standard Library locale |
| model and probably more was implemented by Ulrich Drepper. |
| |
| * Eric Youngdale and Ulrich Drepper implemented versioning of objects on |
| symbol level. |
| |
| * Miles Bader provided the `argp' function family to support hierachical |
| command line argument parsing, layered on top of getopt. |
| |
| * strtod accepts new hexadecimal floating-point format from ISO C 9X |
| |
| * printf has two new specifiers %a and %A to print hexadecimal flaoting-point |
| numbers |
| |
| * scanf recognizes the %A format for scanning floating point numbers |
| |
| * the new header <inttypes.h> from ISO C 9X provides information and |
| interfaces for the available integer types |
| |
| * the new header <complex.h> contains definitions of the complex math |
| functions from ISO C 9X |
| |
| * Thorsten Kukuk provided an implementation for NIS+, securelevel 0 and 1. |
| The implementation for securelevel 2 will follow as soon as the Diffie- |
| Hellman patent expired. |
| |
| * Andreas Jaeger provided a test suite for the math library |
| |
| Version 2.0.2 |
| |
| * more bug fixes |
| |
| * add atoll function |
| |
| * fix complex problems in Berkeley DB code |
| |
| * fix math functions |
| |
| Version 2.0.1 |
| |
| * fixed lots of header problems (especially Linux/GNU specific) |
| |
| * dynamic loader preserves all registers |
| |
| * Roland McGrath provided support for handling of auxiliary objects in |
| the ELF dynamic loader. |
| |
| * support for parallel builds is improved |
| |
| Version 2.0 |
| |
| * GNU extensions are no longer declared by default. To enable them you |
| must define the macro `_GNU_SOURCE' in your program or compile with |
| `-D_GNU_SOURCE'. |
| |
| * 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 change 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. |
| There is a new header file <elf.h> for programs which operate on |
| files in the ELF format. |
| |
| * Converted to Autoconf version 2, so `configure' has more options. |
| Run `configure --help' to see the details. |
| |
| * The library can now be configured to build profiling, highly-optimized |
| (but undebuggable), and/or shared libraries (ELF with GNU ld only). The |
| `--enable-profile', `--enable-omitfp', and `--enable-shared' options to |
| `configure' enable building these extra libraries. The shared library is |
| built by default when using both ELF and GNU ld. When shared libraries |
| are enabled, the new library `-ldl' is available for arbitrary run-time |
| loading of shared objects; its interface is defined in <dlfcn.h>. The |
| new header file <link.h> gives access to the internals of the run-time |
| dynamic linker, `ld.so'. The shell script `ldd' is similar to the |
| application of same name on other systems and it provides information |
| about dynamically linked binaries. |
| |
| * The C library now provides the run-time support code for profiling |
| executables compiled with `-pg'. Programs can control the profiling code |
| through the interface in <sys/gmon.h>. The `gmon.out' files written by |
| the GNU C library can be read only by GNU `gprof' (from GNU binutils); |
| the support for this file format was contributed by David Mosberger-Tang. |
| |
| * The math code has been replaced with a math library based on fdlibm from |
| Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by |
| Ian Taylor with `float' functions and by Ulrich Drepper with `long double' |
| functions. The math functions now reside in a separate library, so |
| programs using them will need to use `-lm' their linking commands. |
| |
| * John C. Bowman contributed optimized ix87 assembler inline functions. |
| |
| * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf' |
| mechanism similar to that found in Solaris 2. This is now used for the |
| group, passwd, hosts, networks, services, protocols, rpc, ethers, |
| shadow, netgroup, publickey, and alias databases. The `nsswitch.conf' |
| file controls what services are used for each individual database. This |
| works by loading shared libraries with names specified in `nsswitch.conf', |
| so service modules can be changed or added at any time without even |
| relinking any program. Currently there are the file, db, and NIS based |
| NSS services available. |
| |
| * 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). |
| |
| * The new functions `strtof' and `strtold' parse floating-point values from |
| strings, like `strtod', but they return `float' and `long double' values, |
| respectively (on some machines `double' and `long double' are the same). |
| |
| * Ulrich Drepper has contributed new implementations of the floating-point |
| printing and reading code used in the `printf' family of functions and |
| `strtod', `strtof', and `strtold'. These new functions are perfectly |
| accurate, and much faster than the old ones. |
| |
| * The implementation of the POSIX locale model was completely rewritten by |
| Ulrich Drepper. This includes the new programs `localedef' and `locale' |
| to compile the POSIX locale definition. |
| |
| * The former dummy implementations of the strcoll and strxfrm function are |
| now replaced by fully functional code contributed by Ulrich Drepper. The |
| collation information comes from the POSIX locale definitions. |
| |
| * The new header <langinfo.h> defines an interface for accessing |
| various locale-dependent data (using the locale chosen with `setlocale'). |
| |
| * Ulrich Drepper has contributed a new suite of functions for operation on |
| wide-character and multibyte-character strings, in <wchar.h>; |
| and classification and case conversion of wide characters, in <wctype.h>. |
| These new functions are conforming to the ISO C, Amendement 1 specification. |
| |
| * There is now a second implementation of the standard I/O library available. |
| It comes from GNU libg++ as was written by Per Bothner, heavily modified |
| by Hongjiu Lu and made thread safe by Ulrich Drepper. |
| |
| * You can now use positional parameter specifications in format strings |
| for the `printf' and `scanf' families of functions. For example, |
| `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints |
| ``Number 6, Mr Jones''. This is mainly useful when providing different |
| format strings for different languages, whose grammars may dictate |
| different orderings of the values being printed. To support this |
| feature, the interface for `register_printf_handler' has changed; see |
| the header file <printf.h> for details. |
| |
| * The `printf' and `scanf' families of functions now understand a new |
| formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says |
| to group numbers as indicated by the locale; for `scanf' and friends, this |
| says to accept as valid only a number with all the proper grouping |
| separators in the right places. In the default "C" locale, numbers are |
| not grouped; but locales for specific countries will define the usual |
| conventions (i.e. separate thousands with `,' in the US locale). |
| |
| * 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. |
| |
| * The resolver code has been updated from the BIND 4.9.5-P1 release. |
| Parts of the code were heavily modified by Ulrich Drepper to fit in the |
| NSS scheme used in glibc. |
| |
| * The new function `malloc_find_object_address' finds the starting address |
| of a malloc'd block, given any address within the block; |
| `malloc_object_allocated_size' returns the size of an allocated block; |
| and `malloc_walk' lets you walk through all allocated blocks. These can |
| be useful for debugging; see <malloc.h> for the interfaces. |
| |
| * 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. |
| |
| * New function `euidaccess' checks allowed access to a file like `access', |
| but using the effective IDs instead of the real IDs. |
| |
| * The time zone data files have been updated for the latest and greatest |
| local time conventions of the countries of the world. |
| |
| * The new function `dirfd' extracts the file descriptor used by a DIR stream; |
| see <dirent.h>. |
| |
| * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface |
| for formatting floating-point numbers. They are provided only for |
| compatibility; new programs should use `sprintf' instead. There are |
| also equivalent function for the `long double' floating-point type and |
| all functions also exist in a reentrant form. |
| |
| * The new auxiliary library `-lutil' from 4.4 BSD contains various |
| functions for maintaining the login-record files (primarily of use to |
| system programs such as `login'), and convenient functions for |
| allocating and initializing a pseudo-terminal (pty) device. |
| |
| * Ulrich Drepper has contributed new support for System V style |
| shared memory and IPC on systems that support it. |
| |
| * Ulrich Drepper has contributed several miscellaneous new functions found |
| in System V: The `hsearch' family of functions provide an effective |
| implementation of hash tables; `a64l' and `l64a' provide a very simple |
| binary to ASCII mapping; `drand48' and friends provide a 48-bit random |
| number generator. |
| |
| * Ulrich Drepper has contributed new reentrant counterparts for the |
| `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc. |
| |
| * Ulrich Drepper has contributed new, highly-optimized versions of several |
| string functions for the i486/Pentium family of processors. |
| |
| * Ulrich Drepper has updated the Linux-specific code, based largely |
| on work done in Hongjiu Lu's version of GNU libc for Linux. |
| The GNU library now supports Linux versions 2.0.10 and later, |
| using the ELF object file format (i[3456]86-*-linux). |
| |
| * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux). |
| |
| * David Mosberger-Tang and Richard Henderson have ported the C library |
| to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the |
| dynamic linking support for ELF/Alpha. |
| |
| * Richard Henderson contributed several Alpha optimized assembler function |
| for arithmetic and string handling. |
| |
| * Ulrich Drepper has contributed a new set of message catalog functions to |
| support multiple languages using the <libintl.h> interface, for use with |
| his new package GNU gettext. Translation volunteers have contributed |
| catalogs of the library's messages in Spanish, German, and Korean. |
| |
| * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat' |
| program and the `catgets' function for reading the catalog files it |
| creates. (The <libintl.h> interface is preferred; we include the |
| <nl_types.h> interface using `catgets' only for source compatibility with |
| programs already written to use it.) |
| |
| * New header file <values.h> gives SVID-compatible names for <limits.h> |
| constants. |
| |
| * Various new macros, declarations, and small header files for compatibility |
| with 4.4 BSD. |
| |
| * New function `group_member' is a convenient way to check if a process has |
| a given effective group ID. |
| |
| * When using GCC 2.7 and later, the socket functions are now declared in a |
| special way so that passing an argument of type `struct sockaddr_in *', |
| `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic |
| `struct sockaddr *' type, does not generate a type-clash warning. |
| |
| * New function `error' declared in header file <error.h> is a convenient |
| function for printing error messages and optionally exiting; this is the |
| canonical function used in GNU programs. The new functions `err', `warn', |
| and friends in header file <err.h> are the canonical 4.4 BSD interface for |
| doing the same thing. |
| |
| * The <glob.h> interface has several new flags from 4.4 BSD that extend the |
| POSIX.2 `glob' function to do ~ and {...} expansion. |
| |
| * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD. |
| `clearenv' which is used in POSIX.9 is also available. |
| |
| * New function `getsid' returns session ID number on systems that support it. |
| |
| * We have incorporated the 4.4 BSD `db' library (version 1.85). New header |
| files <db.h> and <mpool.h> provide a rich set of functions for several |
| types of simple databases stored in memory and in files, and <ndbm.h> is |
| an old `ndbm'-compatible interface using the `db' functions. Link with |
| `-ldb' to get these functions. |
| |
| * New macro `strdupa' copies a string like `strdup', but uses local stack |
| space from `alloca' instead of dynamic heap space from `malloc'. |
| |
| * New function `strnlen' is like `strlen' but searches only a given maximum |
| number of characters for the null terminator. `stpncpy', `strndup' and |
| `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa' |
| function. |
| |
| * New function `statfs' in header <sys/statfs.h>. |
| |
| * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader |
| provide convenient functions for operating on blocks of null-terminated |
| strings. |
| |
| * A new suite of functions in <utmp.h> handle all the details of reading |
| and writing the utmp file. |
| |
| * An implementation of the NIS/YP(tm) based NSS service was contributed by |
| Thorsten Kukuk. |
| |
| * Paul Eggert and Ulrich Drepper modified the `strftime' function to be |
| completely POSIX compliant and also implemented the extended functionality |
| to handle alternate digit representation and alternate era date formats. |
| |
| * Ulrich Drepper provided an implementation of the `strptime' function |
| defined in XPG4.2 which transforms a string into a `struct tm' value. |
| |
| * Paul Eggert provided the tzselect shell script as part of the timezone |
| code. The shell script makes it easy to select the correct timezone |
| specification. |
| |
| * The implementation of the malloc family of functions is completely replaced |
| by a new implementation by Doug Lea with many improvements by Wolfram Gloger. |
| The implementation uses the mmap function (if available) and it is |
| optimized for the use in multi threaded programs. |
| |
| * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of |
| functions. This new functionality is usable by specifying a special |
| salt string and it is compatible with implementation on *BSD systems. |
| |
| * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper: |
| `getsubopt' to handle second level command line options, `bsd_signal' |
| to access BSD style `signal' functionality, the obsolete `regexp' style |
| expression matcher. |
| |
| * the `lchown' function is available on system which support this |
| functionality. |
| |
| * The implementation of the shadow password handling function was contributed |
| by Ulrich Drepper. |
| |
| * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe. |
| |
| * POSIX.1g support was added. The <sys/select.h> header is available, |
| `isfdtype' and `pselect' are implemented. Craig Metz contributed an |
| implementation of `getaddrinfo'. |
| |
| 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, 93, 94, 95, 96 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: |