From 3137faae6fcc87e135268c6150c003564b5b8195 Mon Sep 17 00:00:00 2001
From: Mark Abraham <mark.j.abraham@gmail.com>
Date: Wed, 18 Sep 2024 10:46:29 +0200
Subject: FindHDF5: Avoid mentioning empty version when not found

Previously the not-found message confusingly mentioned an empty version
number:

    -- Could NOT find HDF5: Found unsuitable version "", ...

Don't confuse FindPackageHandleStandardArgs by defining an empty
version.
---
 Modules/FindHDF5.cmake | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Modules/FindHDF5.cmake b/Modules/FindHDF5.cmake
index bd21e3d..242d36f 100644
--- a/Modules/FindHDF5.cmake
+++ b/Modules/FindHDF5.cmake
@@ -974,7 +974,6 @@ if( NOT HDF5_FOUND )
     # If the HDF5 include directory was found, open H5pubconf.h to determine if
     # HDF5 was compiled with parallel IO support
     set( HDF5_IS_PARALLEL FALSE )
-    set( HDF5_VERSION "" )
     foreach( _dir IN LISTS HDF5_INCLUDE_DIRS )
       foreach(_hdr "${_dir}/H5pubconf.h" "${_dir}/H5pubconf-64.h" "${_dir}/H5pubconf-32.h")
         if( EXISTS "${_hdr}" )
-- 
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