Subject: [PATCH] openjfx: Determine the version of Java in JDK_HOME

Icedtea contains guix in its version, so build.gradle failes to run. Openjfx
packaging is not trivial, so you will probably need to try build it with
gradlew.

---
 build.gradle | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/build.gradle b/build.gradle
index df82f63..2c626cd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -742,9 +742,9 @@ try {
     if (inStream.readLine() != null) {
         String v = inStream.readLine();
         if (v != null) {
-            int ib = v.indexOf(" (build ");
+            int ib = v.indexOf(" (guix build ");
             if (ib != -1) {
-                String ver = v.substring(ib + 8, v.size() - 1);
+                String ver = v.substring(ib + 13, v.size() - 1);

                 defineProperty("jdkRuntimeVersion", ver)
                 defineProperty("jdkVersion", jdkRuntimeVersion.split("-")[0])
2.24.1
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<div class='path'>path: <a href='/guix/log/?id=9393ce89ab967823ef693915ed30d4d04a8fc818'>root</a>/<a href='/guix/log/build-aux?id=9393ce89ab967823ef693915ed30d4d04a8fc818'>build-aux</a>/<a href='/guix/log/build-aux/git-version-gen?id=9393ce89ab967823ef693915ed30d4d04a8fc818'>git-version-gen</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/build-aux/git-version-gen?id=9393ce89ab967823ef693915ed30d4d04a8fc818&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2017-05-04 23:51:45 +0200'>2017-05-04</span></td><td><a href='/guix/commit/build-aux/git-version-gen?id=e6860b5e7f8ded96c1769dcff27dffb97587e3e2'>build: Use Gnulib's 'git-version-gen'.</a><span class='msg-avail'>...<span class='msg-tooltip'>* Makefile.am (EXTRA_DIST, BUILT_SOURCES): Add $(top_srcdir)/.version.
($(top_srcdir)/.version, gen-tarball-version): New targets.
(dist-hook): Depend on 'gen-tarball-version'.
(.PHONY): Add 'gen-tarball-version'.
* build-aux/git-version-gen: New file, from Gnulib v0.1-1312-ga87d5e5c6.
* configure.ac: Use it in 'AC_INIT'.  Use 'https' for the URL.
</span></span></td><td>Ludovic Courtès</td></tr>