Speed up builds on 32bit arm

jna.spec

@@ -3,7 +3,7 @@
 
 Name:           jna
 Version:        4.5.1
-Release:        6%{?dist}
+Release:        7%{?dist}
 Summary:        Pure Java access to native libraries
 # Most of code is dual-licensed under either LGPL 2.1 only or Apache
 # License 2.0.  WeakIdentityHashMap.java was taken from Apache CXF,
@@ -47,6 +47,11 @@ BuildRequires:  libXt-devel
 BuildRequires:  reflections
 %endif
 
+%ifarch %{arm}
+# Speed up builds on 32bit arm
+BuildRequires: java-1.8.0-openjdk-aarch32-devel
+%endif
+
 %description
 JNA provides Java programs easy access to native shared libraries
 (DLLs on Windows) without writing anything but Java code. JNA's
@@ -104,6 +109,13 @@ cp lib/native/aix-ppc64.jar lib/clover.jar
 
 
 %build
+# Ensure we get the jit on arm
+%ifarch %{arm}
+export JAVA_HOME=$(ls -d %{_jvmdir}/java-1.8.0-openjdk-aarch32*)
+%else
+export JAVA_HOME=%{_jvmdir}/java
+%endif
+
 # We pass -Ddynlink.native which comes from our patch because
 # upstream doesn't want to default to dynamic linking.
 #ant -Dcflags_extra.native="%{optflags}" -Ddynlink.native=true native compile javadoc jar contrib-jars
@@ -141,6 +153,9 @@ install -m 755 build/native*/libjnidispatch*.so %{buildroot}%{_libdir}/%{name}/
 
 
 %changelog
+* Sat Jun 08 2019 Mat Booth <mbooth@apache.org> - 4.5.1-7
+- Speed up builds on 32bit arm
+
 * Thu Mar 07 2019 Mat Booth <mat.booth@redhat.com> - 4.5.1-6
 - Allow conditionally building without the reflections library for tests