diff --git a/openmpi4.changes b/openmpi4.changes
index 7b76762..ed3b14b 100644
--- a/openmpi4.changes
+++ b/openmpi4.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Sep  5 06:58:41 UTC 2024 - Nicolas Morey <nicolas.morey@suse.com>
+
+- Add test-datatype-partial.c-fix-compiler-warnings.patch to fix
+  testuite compilation with GCC >= 14
+
 -------------------------------------------------------------------
 Mon Jul 29 16:40:16 UTC 2024 - Martin Jambor <mjambor@suse.com>
 
diff --git a/openmpi4.spec b/openmpi4.spec
index 0204067..7106037 100644
--- a/openmpi4.spec
+++ b/openmpi4.spec
@@ -1,5 +1,5 @@
 #
-# spec file for package openmpi4
+# spec file
 #
 # Copyright (c) 2024 SUSE LLC
 # Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
@@ -147,6 +147,7 @@ Source5:        mpivars.csh
 Patch1:         orted-mpir-add-version-to-shared-library.patch
 Patch2:         btl-openib-Add-VF-support-for-ConnectX-4-5-and-6.patch
 Patch3:         openmpi4-C99.diff
+Patch4:         test-datatype-partial.c-fix-compiler-warnings.patch
 Provides:       mpi
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  autoconf
@@ -183,7 +184,7 @@ BuildRequires:  gcc-c++
 BuildRequires:  gcc-fortran
 BuildRequires:  mpi-selector
 Requires:       mpi-selector
-Requires(preun): mpi-selector
+Requires(preun):mpi-selector
 Requires:       %{package_name}-libs = %{version}
 %else
 BuildRequires:  %{compiler_family}%{?c_f_ver}-compilers-hpc-macros-devel
diff --git a/test-datatype-partial.c-fix-compiler-warnings.patch b/test-datatype-partial.c-fix-compiler-warnings.patch
new file mode 100644
index 0000000..441b7d1
--- /dev/null
+++ b/test-datatype-partial.c-fix-compiler-warnings.patch
@@ -0,0 +1,80 @@
+commit e74008f6c67c104f1eb59c488e2c22c0302c87e0
+Author: Jeff Squyres <jsquyres@cisco.com>
+Date:   Fri Nov 18 06:50:24 2022 -0500
+
+    test/datatype/partial.c: fix compiler warnings
+    
+    There are a bunch of other warnings in tests, but I was recently
+    working with a user in this specific test, and the warnings annoyed
+    me.  So I fixed them in this test (but not other tests).
+    
+    Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
+    (cherry picked from commit 98abc08a6e2a0a4181a823c1b81a238964710240)
+
+diff --git test/datatype/partial.c test/datatype/partial.c
+index c064db7193dd..15ea0cad7800 100644
+--- test/datatype/partial.c
++++ test/datatype/partial.c
+@@ -5,6 +5,7 @@
+  *                         reserved.
+  * Copyright (c) 2018      Triad National Security, LLC. All rights
+  *                         reserved.
++ * Copyright (c) 2022      Cisco Systems, Inc.  All rights reserved.
+  * $COPYRIGHT$
+  *
+  * Additional copyrights may follow
+@@ -52,7 +53,7 @@ static void show_neighborhood(double* ptr, int how_many, bool show_hex)
+         printf("\n            : ");
+         for( i = -how_many; i < how_many;  i++ ) {
+             if( 0 == i ) printf(" <");
+-            for( int j = 0; j < sizeof(double); j++ ) {
++            for( size_t j = 0; j < sizeof(double); j++ ) {
+                 printf("%02x", cptr[i * sizeof(double)+j]);
+             }
+             if( 0 == i ) printf("> ");
+@@ -71,7 +72,7 @@ static void show_neighborhood(double* ptr, int how_many, bool show_hex)
+ 
+ int main( int argc, char* argv[] )
+ {
+-    opal_datatype_t* vector;
++    ompi_datatype_t* vector;
+     ompi_datatype_t* base;
+     uint32_t iov_count;
+     size_t max_data, size, length;
+@@ -88,13 +89,13 @@ int main( int argc, char* argv[] )
+     ompi_datatype_create_vector(TYPE_COUNT, TYPE_BLEN, TYPE_STRIDE, MPI_DOUBLE, &base);
+     ompi_datatype_create_contiguous(CONT_COUNT, base, &vector);
+ 
+-    opal_datatype_commit( vector );
++    opal_datatype_commit(&vector->super);
+ 
+     ompi_datatype_dump(vector);
+ 
+-    opal_datatype_type_size(vector, &size);
+-    opal_datatype_type_extent(vector, &extent);
+-    opal_datatype_type_extent(base, &base_extent);
++    opal_datatype_type_size(&vector->super, &size);
++    opal_datatype_type_extent(&vector->super, &extent);
++    opal_datatype_type_extent(&base->super, &base_extent);
+ 
+     array = (double*)malloc( extent * COUNT );
+     packed = (double*)malloc( size * COUNT );
+@@ -113,7 +114,7 @@ int main( int argc, char* argv[] )
+      * of the buffered operation.
+      */
+     convertor = opal_convertor_create( opal_local_arch, 0 );
+-    opal_convertor_prepare_for_recv( convertor, vector, COUNT, array );
++    opal_convertor_prepare_for_recv(convertor, &vector->super, COUNT, array);
+ 
+     for( length = 0; length < (size * COUNT); ) {
+         iov[0].iov_base = bpacked + length;
+@@ -124,7 +125,8 @@ int main( int argc, char* argv[] )
+         opal_convertor_unpack( convertor, iov, &iov_count, &max_data );
+         length += max_data;
+ 
+-        int idx = 0, checked = 0;
++        int idx = 0;
++        size_t checked = 0;
+         for( int m = 0; m < COUNT; m++ ) {
+             char* mptr = (char*)array + m * extent;
+             for( int k = 0; k < CONT_COUNT; k++ ) {