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Tue May 28 04:38:10 1996 Ulrich Drepper <drepper@cygnus.com>

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* limits.h: Change MB_LEN_MAX to 6.  A 31-bit ISO 10646
	character in UTF-8 encoding has that many bytes.

	* locale/langinfo.h: New element _NL_CTYPE_MB_CUR_MAX.
	* locale/categories.def: Add description of field _NL_CTYPE_MB_CUR_MAX.
	* locale/Makefile (routines): Add mb_cur_max.
	* locale/mb_cur_max.c: New file.  This function gets called
	when the macro MB_CUR_MAX is used.
	* locale/C-ctype.c: Initialize new mb_cur_max field.
	* locale/localeinfo.h: Change magic value because of incompatible
        change.
	* locale/programs/ld-ctype.c: Determine value of mb_cur_max
        according to current character set and write it out with the rest.
	* stdlib/stdlib.h (MB_CUR_MAX): Not constant anymore.  Get value
        according to currently used locale for catefory LC_CTYPE by
        calling the function __ctype_get_mb_cur_max.

Tue May 28 03:27:46 1996  Ulrich Drepper  <drepper@cygnus.com>

	* FAQ:  Fix some typos.
	Tell that for Linux the kernel header files are necessary.

	* PROJECTS: New file.  List of open jobs for glibc.
	* Makefile (distribute): Add PROJECTS.

	* crypt/GNUmakefile (headers): New variable.  Mention crypt.h.
	* crypt/crypt.h: Header for crypt functions.

	* elf/elf.h: Add some new constants from recent Cygnus ELF
	header files.

	* login/getutid_r.c: Test for correct type.
	Don't depend on ut_type and ut_id unless _HAVE_UT_TYPE and
	_HAVE_UT_ID resp. are defined.
	Make really compliant with specification.

	* login/getutline_r.c, login/pututline_r.c: Don't depend on
	ut_type and ut_id unless _HAVE_UT_TYPE and _HAVE_UT_ID resp. are
	defined.
	Make really compliant with specification.

	* login/setutent_r.c: Don't depend on ut_type and ut_id unless
	_HAVE_UT_TYPE and _HAVE_UT_ID resp. are defined.

	* login/login.c, login/logout.c, login/logwtmp.c: Complete
	rewrite.  Now based on getut*/setut* functions.

	* stdlib/strtol.c: Undo changes of Wed May 22 01:48:54 1996.
	This prevented using this file in other GNU packages.

	* sysdeps/gnu/utmpbits.h: Define _HAVE_UT_TYPE, _HAVE_UT_ID,
	and _HAVE_UT_TV because struct utmp has these members.

	* sysdeps/libm-i387/e_exp.S: Correct exp(+-Inf) case.

	* utmp.h: New file.  Wrapper around login/utmp.h.

	* elf/dl-error.c (struct catch): New type.
	(catch): New static variable, struct catch *.
	(catch_env, signalled_errstring, signalled_objname): Variables removed.
	(_dl_signal_error): If CATCH is non-null, set its errstring and
	objname members and jump to CATCH->env.  If it is null, call
	_dl_sysdep_fatal with a standard message.
	* elf/rtld.c (dl_main): Explode `doit' function into dl_main's body.
	No longer use _dl_catch_error.
This commit is contained in:
Roland McGrath
1996-05-29 04:48:04 +00:00
parent 215dbbb150
commit 0200214b28
28 changed files with 908 additions and 570 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
FAQ
View File

@ -102,8 +102,8 @@ from your favourite mirror of prep.ai.mit.edu.
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
[Q5] ``Do I need a special linker or archiver?''
[A5] {UD} If your native versions are not too buggy you can work with
them. But GNU libc works best with GNU binutils.
[A5] {UD} If your native versions are not too buggy you can probably
work with them. But GNU libc works best with GNU binutils.
On systems where the native linker does not support weak symbols you
will not get a really ISO C compliant C library. Generally speaking
@ -119,7 +119,7 @@ Older releases are known to have bugs that affect building the GNU C library.
[A6] {UD} Yes, there are some more :-).
* lots of diskspace (for i386-linux this means, e.g., ~70MB)
* lots of diskspace (for i386-linux this means, e.g., ~70MB).
You should avoid compiling on a NFS mounted device. This is very
slow.
@ -130,6 +130,12 @@ Older releases are known to have bugs that affect building the GNU C library.
If you are interested in some more measurements let me know.
* When compiling for Linux:
+ the header files of the Linux kernel must be available in the
search path of the CPP as <linux/*.h> and <asm/*.h>.
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
[Q7] ``When I run `nm libc.so|grep " U "' on the produced library
I still find unresolved symbols? Can this be ok?''
@ -138,7 +144,7 @@ Older releases are known to have bugs that affect building the GNU C library.
symbols:
* magic symbols automatically generated by the linker. Names are
often like __start_* and __stop_*-
often like __start_* and __stop_*
* symbols resolved by using libgcc.a
(__udivdi3, __umoddi3, or similar)
@ -161,14 +167,18 @@ and with cleanliness. With the introduction of a new version number these
errors now can be corrected. Here is a list of the known source code
incompatibilities:
* _GNU_SOURCE: glibc does not automatically define _GNU_SOURCE. Thus, if a
program depends on GNU extensions, it is necessary to compile it with C
compiler option -D_GNU_SOURCE, or better, to put `#define _GNU_SOURCE' at
the beginning of your source files, before any C library header files are
included. This difference normally mainfests itself in the form of
missing prototypes and/or data type definitions. Thus, if you get such
errors, the first thing you should do is try defining _GNU_SOURCE and see
if that makes the problem go away.
* _GNU_SOURCE: glibc does not automatically define _GNU_SOURCE. Thus,
if a program depends on GNU extensions or some other non-standard
functionality, it is necessary to compile it with C compiler option
-D_GNU_SOURCE, or better, to put `#define _GNU_SOURCE' at the beginning
of your source files, before any C library header files are included.
This difference normally manifests itself in the form of missing
prototypes and/or data type definitions. Thus, if you get such errors,
the first thing you should do is try defining _GNU_SOURCE and see if
that makes the problem go away.
For more information consult the file `NOTES' part of the GNU C
library sources.
* reboot(): GNU libc sanitizes the interface of reboot() to be more
compatible with the interface used on other OSes. In particular,
@ -209,7 +219,7 @@ Answers were given by:
{DMT} David Mosberger-Tang, <davidm@AZStarNet.com>
Amended by:
{RM} Roland McGrath <roland@gnu.ai.mit.edu>
{RM} Roland McGrath, <roland@gnu.ai.mit.edu>
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