From aa2a1f2a91e5137b60f903e5c8952a957238362f Mon Sep 17 00:00:00 2001
From: Baptiste Mouginot <mouginot.baptiste@gmail.com>
Date: Wed, 24 Feb 2021 15:54:53 -0600
Subject: [PATCH 1/2] add compatibility flag required to build PyNE against
 hdf5@1.12+

---
 src/pyne/CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/pyne/CMakeLists.txt b/src/pyne/CMakeLists.txt
index 46a85d0bfc..6b21bfeca4 100644
--- a/src/pyne/CMakeLists.txt
+++ b/src/pyne/CMakeLists.txt
@@ -12,4 +12,8 @@ if (CMAKE_Fortran_COMPILER_ID STREQUAL "Intel")
   set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O0 -g")
 endif ()
 
+if(NOT (${HDF5_VERSION} VERSION_LESS 1.12.0))
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DH5Oget_info_by_idx_vers=1 -DH5O_info_t_vers=1 -DH5Oget_info_by_name_vers=1")
+ endif()
+
 dagmc_install_library(pyne_dagmc)

From 57d10dd4b576a406711bd9990f71bb9ce2bd7d26 Mon Sep 17 00:00:00 2001
From: Baptiste Mouginot <mouginot.baptiste@gmail.com>
Date: Wed, 24 Feb 2021 15:58:32 -0600
Subject: [PATCH 2/2] news

---
 news/PR-0728.rst | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 news/PR-0728.rst

diff --git a/news/PR-0728.rst b/news/PR-0728.rst
new file mode 100644
index 0000000000..ffd0dce82a
--- /dev/null
+++ b/news/PR-0728.rst
@@ -0,0 +1,13 @@
+**Added:** None
+
+**Changed:** None
+
+**Deprecated:** None
+
+**Removed:** None
+
+**Fixed:**
+- adding special build flag to enable old hdf5 interface for PyNE when compiling
+  against hdf5@1.12+
+
+**Security:** None