name 2.1.1 patch reason

Author: scivision

CMakeLists.txt

@@ -1,4 +1,5 @@
 cmake_minimum_required(VERSION 3.25...4.3)
+# CMake >= 3.26 required if building HDF5
 
 if(CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR)
   message(FATAL_ERROR "Please do out of source build like

cmake/CheckHDF5.cmake

@@ -28,7 +28,7 @@ elseif(WIN32 AND stderr MATCHES "0xc0000139")
   message(STATUS "test run error may be due to Windows security policy
     ${stderr}")
 else()
-  message(WARNING "HDF5 C types failed check")
+  message(WARNING "HDF5 failed compiler check. ${stderr}")
 endif()
 endfunction()
 

cmake/hdf5.cmake

@@ -5,9 +5,9 @@ include(GNUInstallDirs)
 include(FetchContent)
 
 if(NOT DEFINED h5fortran_hdf5_req)
-  set(h5fortran_hdf5_req dev)
+  set(h5fortran_hdf5_req 2.1patch)
 endif()
-# HDF5 2.0 and 2.1 require CMake >= 3.26, but the benefits are so great that this is worthwhile
+# HDF5 2.x require CMake >= 3.26, but the benefits are so great that this is worthwhile
 
 if(hdf5_parallel)
   set(HDF5_PREFER_PARALLEL ON)
@@ -26,7 +26,7 @@ set(HDF5_GENERATE_HEADERS OFF)
 set(HDF5_PACKAGE_EXTLIBS ON)
 set(HDF5_DISABLE_COMPILER_WARNINGS ON)
 
-if(h5fortran_hdf5_req STREQUAL "dev" OR h5fortran_hdf5_req VERSION_GREATER_EQUAL "2.0")
+if(h5fortran_hdf5_req STREQUAL "2.1patch" OR h5fortran_hdf5_req VERSION_GREATER_EQUAL "2.0")
   set(ZLIB_USE_EXTERNAL ON)
   set(HDF5_ALLOW_EXTERNAL_SUPPORT TGZ)
   if(h5fortran_hdf5_zlib)

cmake/libraries.json

@@ -3,7 +3,8 @@
     "1.10": "https://github.com/HDFGroup/hdf5/archive/refs/tags/hdf5-1_10_11.tar.gz",
     "1.14": "https://github.com/HDFGroup/hdf5/archive/refs/tags/hdf5_1.14.6.tar.gz",
     "2.0": "https://github.com/HDFGroup/hdf5/archive/refs/tags/2.0.0.tar.gz",
-    "2.1": "https://github.com/HDFGroup/hdf5/archive/refs/tags/2.1.0.tar.gz",
-    "dev": "https://github.com/HDFGroup/hdf5/archive/353da6cce4228f0520585dc12b9b77ed7032d59d.tar.gz"
+    "2.1": "https://github.com/HDFGroup/hdf5/archive/refs/tags/2.1.1.tar.gz",
+    "2.1patch": "https://github.com/HDFGroup/hdf5/archive/353da6cce4228f0520585dc12b9b77ed7032d59d.tar.gz",
+    "$comment": "vital commit for dev is 7f79a4e3c79b6ea2b6a5dee81e9f624cceb51bdd on March 18, 2026, which isn't in tag 2.1.1"
   }
 }