Please consider the following change to the libart_lgpl to enable ppc64le:

diff --git a/libart_lgpl.spec b/libart_lgpl.spec
index 11f49d1..797c716 100644
--- a/libart_lgpl.spec
+++ b/libart_lgpl.spec
@@ -31,7 +31,7 @@ developing applications that use %{name}.
 
 %build
 libtoolize
-autoreconf
+autoreconf -i
 %configure --disable-static
 make %{?_smp_mflags}
 
@@ -40,7 +40,7 @@ make install DESTDIR=$RPM_BUILD_ROOT INSTALL="install -p"
 find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
 
 # fix multilib issues
-%ifarch x86_64 s390x ia64 ppc64 alpha sparc64 aarch64
+%ifarch x86_64 s390x ia64 ppc64 ppc64le alpha sparc64 aarch64
 %define wordsize 64
 %else
 %define wordsize 32