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Update.
1998-04-09 Ulrich Drepper <drepper@cygnus.com> * sysdeps/i386/i486/bits/string.h: Remove unused variables. * misc/syslog.c (closelog_internal): Set LogTag to NULL.
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Ulrich Drepper
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834e195429
commit
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@ -1,3 +1,9 @@
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1998-04-09 Ulrich Drepper <drepper@cygnus.com>
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* sysdeps/i386/i486/bits/string.h: Remove unused variables.
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* misc/syslog.c (closelog_internal): Set LogTag to NULL.
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1998-04-09 14:27 Ulrich Drepper <drepper@cygnus.com>
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* manual/socket.texi (Interface Naming): Correct @deftypefun line
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67
FAQ
67
FAQ
@ -81,6 +81,8 @@ please let me know.
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object, consider re-linking
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Why? What should I do?
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2.19. What do I need for C++ development?
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2.20. Even statically linked programs need some shared libraries
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which is not acceptable for me. What can I do?
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3. Source and binary incompatibilities, and what to do about them
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@ -116,6 +118,9 @@ please let me know.
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4.2. When I try to compile code which uses IPv6 headers and
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definitions on my Linux 2.x.y system I am in trouble.
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Nothing seems to work.
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4.3. When I set the timezone I'm by setting the TZ environment variable
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to EST5EDT things go wrong since glibc computes the wrong time
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from this information.
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~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
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@ -138,6 +143,8 @@ probably in the future, are:
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powerpc-*-linux-gnu Linux and MkLinux on PowerPC systems
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sparc-*-linux-gnu Linux-2.x on SPARC
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sparc64-*-linux-gnu Linux-2.x on UltraSPARC
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arm-*-none ARM standalone systems
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arm-*-linuxaout Linux-2.x on ARM using a.out binaries
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Ports to other Linux platforms are in development, and may in fact
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work already, but no one has sent us success reports for them.
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@ -597,11 +604,7 @@ probably a missing or incorrect /usr/lib/libc.so file; note that this
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is a small text file now, not a symlink to libc.so.6. It should look
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something like this:
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GROUP ( libc.so.6 ld.so.1 libc.a )
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or in ix86/Linux and alpha/Linux:
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GROUP ( libc.so.6 ld-linux.so.2 libc.a )
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GROUP ( libc.so.6 libc_nonshared.a )
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2.8. How can I compile gcc 2.7.2.1 from the gcc source code using
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@ -763,6 +766,34 @@ If you're upgrading from glibc 2.0.x to 2.1 you have to recompile
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libstdc++ since the library compiled for 2.0 is not compatible due to the new
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Large File Support (LFS) in version 2.1.
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2.20. Even statically linked programs need some shared libraries
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which is not acceptable for me. What can I do?
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{AJ} NSS (for details just type `info libc "Name Service Switch"')
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won't work properly without shared libraries. NSS allows using
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different services (e.g. NIS, files, db, hesiod) by just changing one
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configuration file (/etc/nsswitch.conf) without relinking any
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programs. The only disadvantage is that now static libraries need to
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access shared libraries. This is handled transparently by the GNU C
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library.
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A solution is to configure glibc with --enable-static-nss. In this
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case you can create a static binary that will use only the services
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dns and files (change /etc/nsswitch.conf for this). You need
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to link explicitly against all these services. For example:
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gcc -static test-netdb.c -o test-netdb.c \
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-lc -lnss_files -lnss_dns -lresolv
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The problem with this approach is that you've got to link every static
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program that uses NSS routines with all those libraries.
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{UD} In fact, one cannot say anymore that a libc compiled with this
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option is using NSS. There is no switch anymore. Therefore it is
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*highly* recommended *not* to use --enable-static-nss since this makes
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the behaviour of the programs on the system inconsistent.
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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@ -1071,6 +1102,32 @@ Also, make sure you have a suitably recent kernel. As of the 970401
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snapshot, according to Philip Blundell <Philip.Blundell@pobox.com>, the
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required kernel version is at least 2.1.30.
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4.3. When I set the timezone I'm by setting the TZ environment variable
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to EST5EDT things go wrong since glibc computes the wrong time
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from this information.
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{UD} The problem is that people still use the braindamaged POSIX
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method to select the timezone using the TZ environment variable with a
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format EST5EDT or whatever. People, read the POSIX standard, the
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implemented behaviour is correct! What you see is in fact the result
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of the decisions made while POSIX.1 was created. We've only
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implemented the handling of TZ this way to be POSIX compliant. It is
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not really meant to be used.
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The alternative approach to handle timezones which is implemented is
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the correct one to use: use the timezone database. This avoids all
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the problems the POSIX method has plus it is much easier to use.
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Simply run the tzselect shell script, answer the question and use the
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name printed in the end by making a symlink to
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/usr/share/zoneinfo/NAME (NAME is the returned value from tzselect)
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from the file /etc/localtime. That's all. You never again have to
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worry.
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So, please avoid sending bug reports about time related problems if
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you use the POSIX method and you have not verified something is really
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broken by reading the POSIX standards.
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~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
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@ -304,6 +304,7 @@ closelog_internal()
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close (LogFile);
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LogFile = -1;
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connected = 0;
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LogTag = NULL;
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}
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void
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@ -1202,7 +1202,6 @@ __strcspn_g (__const char *__s, __const char *__reject)
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{
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register unsigned long int __d0, __d1, __d2;
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register __const char *__res;
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int __mem;
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__asm__ __volatile__
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("pushl %%ebx\n\t"
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"movl %4,%%edi\n\t"
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@ -1311,7 +1310,6 @@ __strspn_g (__const char *__s, __const char *__accept)
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{
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register unsigned long int __d0, __d1, __d2;
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register __const char *__res;
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int __mem;
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__asm__ __volatile__
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("pushl %%ebx\n\t"
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"cld\n\t"
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@ -1404,7 +1402,6 @@ __strpbrk_g (__const char *__s, __const char *__accept)
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{
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register unsigned long int __d0, __d1, __d2;
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register char *__res;
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int __mem;
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__asm__ __volatile__
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("pushl %%ebx\n\t"
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"movl %%edx,%%edi\n\t"
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@ -1508,7 +1505,6 @@ __strstr_g (__const char *__haystack, __const char *__needle)
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{
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register unsigned long int __d0, __d1, __d2;
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register char *__res;
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int __mem;
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__asm__ __volatile__
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("cld\n\t"
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"repne; scasb\n\t"
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