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authorUlrich Drepper <drepper@redhat.com>1999-01-20 16:12:52 +0000
committerUlrich Drepper <drepper@redhat.com>1999-01-20 16:12:52 +0000
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Update.
* iconvdata/Makefile (modules): Add SAMI-WS2 and ISO-IR-197. * iconvdata/gconv-modules: Add entries for above charsets. * iconvdata/iso-ir-197.c: New file. * iconvdata/same-ws2.c: New file.
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@@ -832,6 +832,33 @@ passwd_compat: nis
group_compat: nis
shadow_compat: nis
+?? What needs to be recompiled when upgrading from glibc 2.0 to glibc
+ 2.1?
+
+{AJ,CG} If you just upgrade the glibc from 2.0.x (x <= 7) to 2.1, binaries
+that have been linked against glibc 2.0 will continue to work.
+
+If you compile your own binaries against glibc 2.1, you also need to
+recompile some other libraries. The problem is that libio had to be
+changed and therefore libraries that are based or depend on the libio
+of glibc, e.g. ncurses or slang, need to be recompiled. If you
+experience strange segmentation faults in your programs linked against
+glibc 2.1, you might need to recompile your libraries.
+
+Another problem is that older binaries that were linked statically against
+glibc 2.0 will reference the older nss modules (libnss_files.so.1 instead of
+libnss_files.so.2), so don't remove them. Also, the old glibc-2.0 compiled
+static libraries (libfoo.a) which happen to depend on the older libio
+behavior will be broken by the glibc 2.1 upgrade. The idea is to produce a
+libcompat.a that people will be able to use to link in if they want to
+compile a static library generated against glibc 2.0 into a program on a
+glibc 2.1 system. You should just add -lcompat and you should be fine.
+
+The glibc-compat add-on will provide the libnss_* files and other stuff so
+that it is possible to use static library compiled against glibc 2.0 for
+development on a glibc 2.1 based system. Please note that this is currently
+just an experiment, although the nss modules part should work.
+
? Source and binary incompatibilities, and what to do about them
@@ -1275,6 +1302,7 @@ Answers were given by:
{TK} Thorsten Kukuk, <kukuk@vt.uni-paderborn.de>
{GK} Geoffrey Keating, <geoffk@ozemail.com.au>
{HJ} H.J. Lu, <hjl@gnu.org>
+{CG} Cristian Gafton, <gafton@redhat.com>
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