X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/495ae4b01f36d0d8bb0e34a1d7263c2b8224aa4a..347d8633fd5ff7e85fd0f27444d6d1260c2212de:/doc/doc-txt/dbm.discuss.txt?ds=inline diff --git a/doc/doc-txt/dbm.discuss.txt b/doc/doc-txt/dbm.discuss.txt index 7517c4b88..4f3622d69 100644 --- a/doc/doc-txt/dbm.discuss.txt +++ b/doc/doc-txt/dbm.discuss.txt @@ -1,5 +1,3 @@ -$Cambridge: exim/doc/doc-txt/dbm.discuss.txt,v 1.1 2004/10/07 15:04:35 ph10 Exp $ - DBM Libraries for use with Exim ------------------------------- @@ -43,7 +41,8 @@ some time, and various releases 2.x began to appear towards the end of 1997. In November 1999, version 3.0 was released, and the ending of support for 2.7.7, the last 2.x release, was announced for November 2000. (Support for 1.85 has already ceased.) There were further 3.x releases, but by the end of 2001, the -current release was 4.0.14. +current release was 4.0.14. In 2022 it was 5.3.28 on Linux (the then-owner +has developed it further but Exim does not support anything after 5.x). There are major differences in implementation and interface between the DB 1.x and 2.x/3.x/4.x releases, and they are best considered as two independent dbm @@ -154,12 +153,13 @@ Berkeley DB 1.8x 1.85 was the most widespread DB 1.x release; there is also a 1.86 bug-fix release, but the belief is that the bugs it fixes will not affect Exim. However, maintenance for 1.x releases has been phased out. +Exim no loger supports these releases for current builds. This dbm library can be called by Exim in one of two ways: via the ndbm compatibility interface, or via its own native interface. There are two advantages to doing the latter: (1) you don't run the risk of Exim's seeing the "wrong" version of the ndbm.h header, as described above, and (2) the -performace is better. It is therefore recommended that you set USE_DB=yes in an +performance is better. It is therefore recommended that you set USE_DB=yes in an appropriate Local/Makefile-xxx file. (If you are compiling for just one OS, it can go in Local/Makefile itself.) @@ -207,6 +207,8 @@ the file name handed to it. DB 2.x does not do any automatic locking of its own; it does have a set of functions for various forms of locking, but Exim does not use them. +Exim no longer supports these releases for current builds. + Berkeley DB 3.x --------------- @@ -225,9 +227,23 @@ files in other formats that are created by other programs. Berkeley DB 4.x --------------- -The 4.x series is a developement of the 2.x and 3.x series, and the above +The 4.x series is a development of the 2.x and 3.x series, and the above comments apply. +Berkeley DB 5.x +--------------- + +The 5.x versions seem to be current in several Linux disributions +as of writing (2024). Exim uses them under the assumption that the +API is the same as the version 4.1 library. + +Berkeley DB 6+ +--------------- + +These versions exist, but documentation does not seem to be available. +Exim does not support them. + + tdb --- @@ -320,3 +336,5 @@ exists, just in case. Proceed as follows: Philip Hazel Last update: June 2002 + +(+undates July 2024, jgh)