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authorUlrich Drepper <drepper@redhat.com>1999-03-08 11:57:06 +0000
committerUlrich Drepper <drepper@redhat.com>1999-03-08 11:57:06 +0000
commitb93492aaddcd959f47419ca9b44bc2ecca97858b (patch)
treee4f12a2ac507159bc64d614c15a2753924929326 /FAQ.in
parent7d1de115db4c8b660d12ad1a72cb95ffa7f7a234 (diff)
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Update.
1999-03-02  Mark Kettenis  <kettenis@gnu.org>

	* Makerules (LD_FLAGS-c.so): Add -u __register_frame to force the
	backward compatibility EH functions to be linked when using
	gcc-2.8.1.  Patch by Zack Weinberg <zack@rabi.columbia.edu>.
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diff --git a/FAQ.in b/FAQ.in
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+++ b/FAQ.in
@@ -1287,6 +1287,21 @@ suffix `_unlocked', for details check <stdio.h>.  Using `putc_unlocked' etc.
 instead of `putc' should give nearly the same speed with bonnie (bonnie is a
 benchmark program for measuring disk access).
 
+??	Programs compiled with glibc 2.1 can't read db files made with glibc
+	2.0.  What has changed that programs like rpm break?
+
+{AJ} The GNU C library 2.1 uses db2 instead of db1 which was used in version
+2.0.  The internal formats of the actual db files are different.  To convert
+the db files from db1 format to db2 format, you can use the programs
+`db_dump185' and `db_load'.  Alternativly programs can be linked with db1
+using `-ldb1' instead of linking with db2 which uses `-ldb'.  Linking with
+db1 might be preferable if older programs need to access the db file.
+
+db2 supports the old db1 programming interface and also a new programming
+interface.  For compilation with the old API, <db_185.h> has to be included
+(and not <db.h>) and you can link with either `-ldb1' or `-ldb' for either
+of the db formats.
+
 
 ? Miscellaneous