Change PPC wheel builder image to have C++17 compatible compiler (#120)

* Change PPC wheel builder image to have C++17 compatible compiler

* Update changelog

* Update .github/CHANGELOG.md

Co-authored-by: Tom Bromley <49409390+trbromley@users.noreply.github.com>

Co-authored-by: Tom Bromley <49409390+trbromley@users.noreply.github.com>

.github/CHANGELOG.md

@@ -2,34 +2,45 @@
 
 ### New features
 
-* C++ layer now supports float (32-bit) and double (64-bit) templated complex data ([#113](https://github.com/PennyLaneAI/pennylane-lightning/pull/113))
+* C++ layer now supports float (32-bit) and double (64-bit) templated complex data.
+  [#113](https://github.com/PennyLaneAI/pennylane-lightning/pull/113)
 
 ### Improvements
 
-* Static versions of jQuery and Bootstrap are no longer included in the CSS theme. [(118)](https://github.com/PennyLaneAI/pennylane-lightning/pull/118)
+* Static versions of jQuery and Bootstrap are no longer included in the CSS theme. 
+  [(118)](https://github.com/PennyLaneAI/pennylane-lightning/pull/118)
 
-* C++ tests have been ported to use Catch2 framework. ([#115](https://github.com/PennyLaneAI/pennylane-lightning/pull/115))
+* C++ tests have been ported to use Catch2 framework.
+  [#115](https://github.com/PennyLaneAI/pennylane-lightning/pull/115)
 
-* Testing now exists for both float and double precision methods in C++ layer. ([#113](https://github.com/PennyLaneAI/pennylane-lightning/pull/113),[#115](https://github.com/PennyLaneAI/pennylane-lightning/pull/115))
+* Testing now exists for both float and double precision methods in C++ layer. 
+  [#113](https://github.com/PennyLaneAI/pennylane-lightning/pull/113)
+  [#115](https://github.com/PennyLaneAI/pennylane-lightning/pull/115)
 
-* Compile-time utility methods with `constexpr` have been added. ([#113](https://github.com/PennyLaneAI/pennylane-lightning/pull/113))
+* Compile-time utility methods with `constexpr` have been added.
+  [#113](https://github.com/PennyLaneAI/pennylane-lightning/pull/113)
 
-* Wheel-build support for ARM64 (Linux and MacOS) and PowerPC (Linux) added. ([#110](https://github.com/PennyLaneAI/pennylane-lightning/pull/110))
+* Wheel-build support for ARM64 (Linux and MacOS) and PowerPC (Linux) added. 
+  [#110](https://github.com/PennyLaneAI/pennylane-lightning/pull/110)
 
 * Add support for Controlled Phase Gate (CPhaseShift).
   [(#112)](https://github.com/PennyLaneAI/pennylane-lightning/issues/112)
 
 * Move changelog to `.github` and add a changelog reminder.
 
-
 ### Breaking changes
 
-* Compilers with C++17 support are now required to build C++ module. ([#113](https://github.com/PennyLaneAI/pennylane-lightning/pull/113))
+* Compilers with C++17 support are now required to build C++ module.
+  [#113](https://github.com/PennyLaneAI/pennylane-lightning/pull/113)
 
-* Gate classes have been removed with functionality added to StateVector class. ([#113](https://github.com/PennyLaneAI/pennylane-lightning/pull/113))
+* Gate classes have been removed with functionality added to StateVector class.
+  [#113](https://github.com/PennyLaneAI/pennylane-lightning/pull/113)
 
 ### Bug fixes
 
+* PowerPC wheel-builder now successfully compiles modules.
+  [#120](https://github.com/PennyLaneAI/pennylane-lightning/pull/120)
+
 ### Contributors
 
 This release contains contributions from (in alphabetical order):

.github/workflows/wheel_linux_ppc64le.yml

@@ -14,8 +14,8 @@ env:
   # Skip PPC tests due to lack of numpy/scipy wheel support
   CIBW_TEST_SKIP: "*-manylinux_{ppc64le}"
 
-  # Use Debian image for PPC
-  CIBW_MANYLINUX_PPC64LE_IMAGE: manylinux_2_24
+  # Use CentOS 7 image for PPC
+  CIBW_MANYLINUX_PPC64LE_IMAGE: manylinux2014
 
 jobs:
   linux-wheels-ppc64le: