db48 +java: fatal error: 'jni.h' file not found

[russhousley]

$sudo port upgrade outdated
--->  Building db48
Error: Failed to build db48: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_databases_db48/db48/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets to report a bug.
$open /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_databases_db48/db48/main.log
$

[russhousley]

.../db48/main.log

[mf2k (Frank Schima)]

In the future, please use WikiFormatting and add the port maintainer(s) to Cc (port info --maintainers db48), if any.

[danielluke (Daniel J. Luke)]

you're building with +java but the build isn't able to find jni.h (do you have a jdk installed?)

[jmroot (Joshua Root)]

Yeah. I suspect this has not been tested with the 10.14-compatible JDK versions, as +java is only on by default on 10.6 and older. Probably needs to use the java portgroup somehow.

[sharris40 (Spencer Harris)]

There are actually four separate problems here:

1. java_home isn't properly checked.
2. The scripts assume the include subdirectory is genunix, not darwin.
3. Version detection is broken (because of course it is).
4. The class files must be built for Java 7 or earlier.

Issues 1-3 are simple patches to dist/configure. Issue 4 can be solved by cross-compiling. While we can just set source and target in JAVACFLAGS, we really should have an rt.jar from Java 7. It would probably be best to add a new port that downloads the Java 7 reference implementation from java.net and extracts the architecture-independent library files somewhere in the prefix, add that port as a build dependency to the java variant, and set the bootclasspath to that rt.jar along with setting source and target to 1.7.

[jmroot (Joshua Root)]

I am a bit curious as to what users need db48+java for. If there's not a real need for it, I'm inclined to just disable the variant.

[kencu (Ken)]

it's likely being pulled it when some other port is being asked to install +java, eg Octave.

[ryandesign (Ryan Carsten Schmidt)]

Has duplicate #62778.

[jmroot (Joshua Root)]

In 34ffea56d67386ade0e9a381903c4a091abf7d60/macports-ports (master):

db48: move java and tcl bindings to subports

Also use the java portgroup and fix other java build issues.

Closes: #45826
Closes: #57743
Closes: #64470
Closes: #65831