[bug#29897] [PATCH core-updates] gnu: java-aqute-libg: Fix compilation on java8.

["Gábor Boskovits" <boskovits@gmail.com>]

* gnu/packages/java.scm (java-aqute-libg)[arguments]: Add keyword make-flags to use
  source and target 1.7.

This is an issue know upstream:
https://github.com/bndtools/bnd/issues/1327

It is closed as won't fix. There is no way to change the source, so that is works
on java8, and it still works on java6, the upstream target. It works fine on
java7, however, so we use java7.
---
 gnu/packages/java.scm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gnu/packages/java.scm b/gnu/packages/java.scm
index 8a244328f..584cbafa4 100644
--- a/gnu/packages/java.scm
+++ b/gnu/packages/java.scm
@@ -5999,6 +5999,8 @@ it manages project dependencies, gives diffs jars, and much more.")
     (arguments
      `(#:jar-name "java-aqute-libg.jar"
        #:source-dir "aQute.libg/src"
+       #:make-flags (list (string-append "-Dant.build.javac.source=" "1.7")
+                          (string-append "-Dant.build.javac.target=" "1.7"))
        #:tests? #f)); FIXME: tests are in "aQute.libg/test", not in a java directory
     (inputs
      `(("slf4j" ,java-slf4j-api)
-- 
2.15.1