libc/db in base is currently BSD-3-Clause. Advertising clause removed from FreeBSD source tree in 2007.

I'm not sure we need to mark it as dual licensed if using the BSD licensed db 1.85. The BSD license does not make requirements on derivative works like AGPLv3 does, just on distribution of the lib itself (in binary or source form). The base FreeBSD OS already takes care of those requirements since it is the distributor of db 1.85. I suppose clause 3 is a requirement on derived works (to not use the University's or contributors' names for endorsement of derived works). But other parts of libc are BSD licensed, and we typically don't mark every port that uses libc as dual licensed with the BSD license.

@rfyu28uyeg_snkmail.com: thank you for the input about the licensing. You're right -- I'm updating the patch now.

I think this is good. I'd be inclined to switch BDB to BDB1 for the default. The AGPLv3 licensed BDB should probably not be the default.

See also https://bugs.freebsd.org/261523#c30 - other people are thinking along the same lines (to use bdb from base).

How did you verify that Berkeley DB support is working with these changes? httxt2dbm is failing for me.

After applying changes, rebuilding devel/apr1, I have an apr-utils lib that shows bdb 1 support

❯ ls -l $(which apu-1-config)
-rwxr-xr-x  1 root wheel 6255 Oct 13 11:16 /usr/local/bin/apu-1-config
❯ apu-1-config --includes --dbm-libs --link-ld
 -I/usr/local/include/apr-1 -I/usr/include -I/usr/local/include -lc   -L/usr/local/lib -laprutil-1
❯ apu-1-config --db-version
1

Building www/apache24 with this, results in an httxt2dbm library that is nonfunctional

❯ ls -l $(which httxt2dbm)
-rwxr-xr-x  1 root wheel 10264 Oct 13 11:20 /usr/local/bin/httxt2dbm
❯ httxt2dbm
Error: No input file specified.

httxt2dbm -- Program to Create DBM Files for use by RewriteMap
Usage: httxt2dbm [-v] [-f format] -i SOURCE_TXT -o OUTPUT_DBM

Options:
 -v    More verbose output

 -i    Source Text File. If '-', use stdin.

 -o    Output DBM.

 -f    DBM Format.  If not specified, will use the APR Default.
           GDBM for GDBM files (unavailable)
           SDBM for SDBM files (available)
           DB   for berkeley DB files (available)
           NDBM for NDBM files (unavailable)
           default for the default DBM type
❯ echo "key value" | httxt2dbm -f DB -i- -o /tmp/httest.db -v
DBM Format: DB
Input File: -
Error: Cannot open output DBM '/tmp/httest.db': (20019) DSO load failed
❯ echo "key value" | httxt2dbm -f SDBM -i- -o /tmp/httest.sdbm -v
DBM Format: SDBM
Input File: -
DBM File: /tmp/httest.sdbm
    'key' -> 'value'
Conversion Complete.

Added SDBM for validation that I have a working httxt2dmb.

In D40366#1073408, @brnrd wrote:

How did you verify that Berkeley DB support is working with these changes? httxt2dbm is failing for me.

I didn't execute any tests at runtime (I really should have as illustrated by your testing below...). I was naively relying on build testing to be enough for this component.

After applying changes, rebuilding devel/apr1, I have an apr-utils lib that shows bdb 1 support

❯ ls -l $(which apu-1-config)
-rwxr-xr-x  1 root wheel 6255 Oct 13 11:16 /usr/local/bin/apu-1-config
❯ apu-1-config --includes --dbm-libs --link-ld
 -I/usr/local/include/apr-1 -I/usr/include -I/usr/local/include -lc   -L/usr/local/lib -laprutil-1
❯ apu-1-config --db-version
1

Building www/apache24 with this, results in an httxt2dbm library that is nonfunctional

❯ ls -l $(which httxt2dbm)
-rwxr-xr-x  1 root wheel 10264 Oct 13 11:20 /usr/local/bin/httxt2dbm
❯ httxt2dbm
Error: No input file specified.

httxt2dbm -- Program to Create DBM Files for use by RewriteMap
Usage: httxt2dbm [-v] [-f format] -i SOURCE_TXT -o OUTPUT_DBM

Options:
 -v    More verbose output

 -i    Source Text File. If '-', use stdin.

 -o    Output DBM.

 -f    DBM Format.  If not specified, will use the APR Default.
           GDBM for GDBM files (unavailable)
           SDBM for SDBM files (available)
           DB   for berkeley DB files (available)
           NDBM for NDBM files (unavailable)
           default for the default DBM type
❯ echo "key value" | httxt2dbm -f DB -i- -o /tmp/httest.db -v
DBM Format: DB
Input File: -
Error: Cannot open output DBM '/tmp/httest.db': (20019) DSO load failed
❯ echo "key value" | httxt2dbm -f SDBM -i- -o /tmp/httest.sdbm -v
DBM Format: SDBM
Input File: -
DBM File: /tmp/httest.sdbm
    'key' -> 'value'
Conversion Complete.

Added SDBM for validation that I have a working httxt2dmb.

Input File: -
26931: write(2,"Input File: -\n",14)             = 14 (0xe)
26931: open("/usr/local/lib/apr-util-1/apr_dbm_db-1.so",O_RDONLY|O_CLOEXEC|O_VERIFY,020040100200) ERR#2 'No such file or directory'
Error: Cannot open output DBM '/tmp/httest.db': (20019) DSO load failed

26931: write(2,"Error: Cannot open output DBM '/"...,73) = 73 (0x49)

Hmmm..

Oh neat, the plist is broken for all but OPTIONS_SET+= BDB.

In D40366#1076183, @brnrd wrote:

In D40366#1076061, @ngie wrote:

Install the dbm module for OPTIONS_SET+= BDB1 to unbreak uses of the dbm submodule.

Not used phabricator for a good while (last was before svn->git?)... WebUI doesn't want to update this rev.

I think I've cracked it, the plist breakage and all. Check [https://brnrd.eu/bsd/patch-devel_apr1-D40366]
Basically:

1. --with-dbm hints for configure to speed up bdb detection
2. Switch to PLIST_SUB with BERKELEYDB for all BDB versions

Database creation using httxt2dbm works with all 3 BDB versions:

❯ file test-*.dbm
test-base.dbm: Berkeley DB 1.85 (Hash, version 2, native byte-order)
test-db18.dbm: Berkeley DB (Hash, version 10, native byte-order)
test-db5.dbm:  Berkeley DB (Hash, version 9, native byte-order)

Would love to switch default to base, but that'll trip up people that have existing databases.

Indeed... *sigh*.

Your patch looks great -- thanks!