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Old 11-29-2004, 03:01 AM   #1
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Registered: Aug 2004
Location: Japan
Distribution: Fedora Core 2/ FreeBSD 4.9
Posts: 12

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what is db_185.h ?

Dear all,

I am working on Fedora Core 2 platform.

When i "man dbopen", i get the man page for berkeley db's dbopen.
It was clearly written that the I need to include the <db.h> to use the function.

However, the linking failed even when i tried to link with "-ldb" flag.

I checked the usr/include/db.h and could not find "dbopen" in the db.h file.
instead I found it declared in usr/include/db_185.h

When i used "db_185.h" instead, everything compiled fine.

Does anyone know what is db_185.h used for?
Is it safe for me to use it instead of db.h?

Thank you in advance

Old 06-16-2020, 12:14 PM   #2
Registered: May 2003
Location: Tengiz
Distribution: Slackware64 14.1
Posts: 679

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Well, this is very old message but I was looking for similar information and came by it. I'm going to drop all the information here for future reference.
So I was reading some source code which uses makemap or dbload. So I looked for the information and here's the deal:
db.h comes from Berkeley Database Libraries. Years ago, those Berkeley DB library api provided by the GLibc itself but they removed it. They used head file db.h for it. Right now however the API is provided by seperate library called libdb (Debian package name is libdb-dev for the headers) and it turned to db_185.h. I don't know the reason why and the debian package also provides db.h header as well.
I hope someone can provide more information about the history here and header's status on other systems as well.

Old 06-22-2020, 03:00 PM   #3
Registered: Nov 2014
Posts: 305

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I'm not sure exactly what you're looking for but Berkeley DB was written originally by some people at UC Berkeley. They went on to found Sleepycat Software to support it. They were purchased by Oracle who now owns the rights to it. I imagine the 185 refers to version 18.5 of the software and the header is for internal versioning purposes.


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