diff --git a/.gitignore b/.gitignore
index d71d88a..ae43125 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,3 +33,5 @@
 /rustc-1.14.0-powerpc64-unknown-linux-gnu.tar.gz
 /rustc-1.14.0-s390x-unknown-linux-gnu.tar.gz
 /rustc-1.14.0-x86_64-unknown-linux-gnu.tar.gz
+/rustc-1.15.0-powerpc64-unknown-linux-gnu.tar.gz
+/rustc-1.15.0-powerpc64le-unknown-linux-gnu.tar.gz
diff --git a/rust.spec b/rust.spec
index 018e5b8..df00c27 100644
--- a/rust.spec
+++ b/rust.spec
@@ -1,7 +1,6 @@
 # Only x86_64 and i686 are Tier 1 platforms at this time.
 # https://forge.rust-lang.org/platform-support.html
-#global rust_arches x86_64 i686 armv7hl aarch64 ppc64 ppc64le s390x
-%global rust_arches x86_64 i686 armv7hl aarch64
+%global rust_arches x86_64 i686 armv7hl aarch64 ppc64 ppc64le s390x
 
 # The channel can be stable, beta, or nightly
 %{!?channel: %global channel stable}
@@ -14,6 +13,14 @@
 
 # Only the specified arches will use bootstrap binaries.
 #global bootstrap_arches %%{rust_arches}
+%global bootstrap_arches ppc64 ppc64le
+
+# Temporarily override the bootstrap channel for powerpc.  The binaries used
+# here are also *not* the upstream ones, but rather custom cross-compliations
+# by jistone using the newer docker images with ABI changes found here:
+# https://github.com/rust-lang/rust/pull/39382
+%global orig_bootstrap_channel %{bootstrap_channel}
+%global bootstrap_channel 1.15.0
 
 # We generally don't want llvm-static present at all, since llvm-config will
 # make us link statically.  But we can opt in, e.g. to aid LLVM rebases.
@@ -90,7 +97,7 @@ end}
 %global local_rust_root %{_builddir}/%{bootstrap_root}/rustc
 Provides:       bundled(%{name}-bootstrap) = %{bootstrap_channel}
 %else
-BuildRequires:  %{name} >= %{bootstrap_channel}
+BuildRequires:  %{name} >= %{orig_bootstrap_channel}
 BuildConflicts: %{name} > %{version}
 %global local_rust_root %{_prefix}
 %endif
@@ -353,6 +360,7 @@ make check-lite VERBOSE=1 -k || python2 src/etc/check-summary.py tmp/*.log || :
 - Require rust-rpm-macros for new crate packaging.
 - Keep shared libraries under rustlib/, only debug-stripped.
 - Merge and clean up conditionals for epel7.
+- Bootstrap ppc64 and ppc64le.
 
 * Tue Jan 03 2017 Josh Stone <jistone@redhat.com> - 1.14.0-1
 - Update to 1.14.0.
diff --git a/sources b/sources
index 519fbb6..2f68732 100644
--- a/sources
+++ b/sources
@@ -1 +1,3 @@
 SHA512 (rustc-1.15.1-src.tar.gz) = 10d533b17cf7f92b9dff14b399b5dd0ac8b68284eea072c85ede78a4e4c2c4fce8c781777124c64798057aceb6444535e02e067fd67ba3633c3e828fb4d2d339
+SHA512 (rustc-1.15.0-powerpc64-unknown-linux-gnu.tar.gz) = 5e556a51fbc36b71d68677bd0ad79e35c2168a3a1f0f22550fefbb3a2817c84bdc1540b5dc3b17122a7921928392aa63c475060238abb826d6e243062aadbf7a
+SHA512 (rustc-1.15.0-powerpc64le-unknown-linux-gnu.tar.gz) = 6d50d20abec91bf6a35ccbbdb2c6dc2f5e185c70b60826be4db8fcc6f49cde16f9be78035a2fc1777d8c68809aec527b9feae355d6abbea66f101960bb1187e9