gnu: jamvm@1.5.1: Fix building on armhf-linux.

* gnu/packages/java.scm (jamvm@1.5.1)[source]: Add patch.
* gnu/packages/patches/jamvm-arm.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register it.

gnu/local.mk

@@ -801,6 +801,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/intltool-perl-compatibility.patch	\
   %D%/packages/patches/isl-0.11.1-aarch64-support.patch	\
   %D%/packages/patches/jacal-fix-texinfo.patch			\
+  %D%/packages/patches/jamvm-arm.patch				\
   %D%/packages/patches/java-apache-ivy-port-to-latest-bouncycastle.patch	\
   %D%/packages/patches/java-jeromq-fix-tests.patch		\
   %D%/packages/patches/java-powermock-fix-java-files.patch		\

gnu/packages/java.scm

@@ -9,6 +9,7 @@
 ;;; Copyright © 2017 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 Gábor Boskovits <boskovits@gmail.com>
 ;;; Copyright © 2018 Chris Marusich <cmmarusich@gmail.com>
+;;; Copyright © 2018 Efraim Flashner <efraim@flashner.co.il>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -175,6 +176,7 @@ language.")
               (uri (string-append "mirror://sourceforge/jamvm/jamvm/"
                                   "JamVM%20" version "/jamvm-"
                                   version ".tar.gz"))
+              (patches (search-patches "jamvm-arm.patch"))
               (sha256
                (base32
                 "06lhi03l3b0h48pc7x58bk9my2nrcf1flpmglvys3wyad6yraf36"))))