diff --git a/OpenIPMI-c99.patch b/OpenIPMI-c99.patch
new file mode 100644
index 0000000..40cb5c4
--- /dev/null
+++ b/OpenIPMI-c99.patch
@@ -0,0 +1,60 @@
+C type errors in the SWIG-generated Perl bindings
+
+The first change fixes an error with newer compilers:
+
+OpenIPMI_wrap.c: In function ‘_wrap_strconstarray_val_set’:
+OpenIPMI_wrap.c:10491:27: error: assignment to ‘const char **’ from incompatible pointer type ‘char **’
+10491 |     if (arg1) (arg1)->val = arg2;
+      |                           ^
+
+The second change is also about a compiler error:
+
+In file included from /usr/lib64/perl5/CORE/perl.h:4530,
+                 from OpenIPMI_wrap.c:751:
+OpenIPMI_wrap.c: In function ‘_wrap_ipmi_sol_conn_t_write’:
+/usr/lib64/perl5/CORE/sv.h:1952:31: error: passing argument 3 of ‘Perl_SvPV_helper’ from incompatible pointer type
+ 1952 |    Perl_SvPV_helper(aTHX_ sv, &len, flags, SvPVnormal_type_,                \
+/usr/lib64/perl5/CORE/sv.h:1972:37: note: in expansion of macro ‘SvPV_flags’
+ 1972 | #define SvPV(sv, len)               SvPV_flags(sv, len, SV_GMAGIC)
+      |                                     ^~~~~~~~~~
+OpenIPMI_wrap.c:27664:24: note: in expansion of macro ‘SvPV’
+27664 |         (&arg2)->val = SvPV(tempsv, (&arg2)->len);
+      |                        ^~~~
+In file included from /usr/lib64/perl5/CORE/perl.h:7812:
+/usr/lib64/perl5/CORE/sv_inline.h:908:33: note: expected ‘STRLEN * const’ {aka ‘long unsigned int * const’} but argument is of type ‘int *’
+  908 |                  STRLEN * const lp,
+      |                  ~~~~~~~~~~~~~~~^~
+
+But the existing code looks broken on big-endian 64-bit architectures,
+too.
+
+Submitted upstream: <https://sourceforge.net/p/openipmi/patches/38/>
+
+diff --git a/swig/OpenIPMI.i b/swig/OpenIPMI.i
+index 8e674a94e6f85f62..db2aa1b5292a276f 100644
+--- a/swig/OpenIPMI.i
++++ b/swig/OpenIPMI.i
+@@ -359,7 +359,7 @@ typedef struct iargarray
+ %}
+ typedef struct strconstarray
+ {
+-    char **val;
++    const char **val;
+     int len;
+ } strconstarray;
+ typedef struct argarray
+diff --git a/swig/perl/OpenIPMI_lang.i b/swig/perl/OpenIPMI_lang.i
+index d13b62f09e69e02a..d7482d1135cdc3e4 100644
+--- a/swig/perl/OpenIPMI_lang.i
++++ b/swig/perl/OpenIPMI_lang.i
+@@ -292,7 +292,9 @@
+ 	$1.val = NULL;
+ 	$1.len = 0;
+     } else {
+-	$1.val = SvPV(tempsv, $1.len);
++	STRLEN len;
++	$1.val = SvPV(tempsv, len);
++	$1.len = len;
+     }
+ }
+ 
diff --git a/OpenIPMI.spec b/OpenIPMI.spec
index e77e46b..83755ff 100644
--- a/OpenIPMI.spec
+++ b/OpenIPMI.spec
@@ -4,7 +4,7 @@ Summary: IPMI (Intelligent Platform Management Interface) library and tools
 Name: OpenIPMI
 
 Version:    2.0.32
-Release:    10%{?dist}
+Release:    11%{?dist}
 License:    LGPL-2.1-or-later and GPL-2.0-or-later or BSD-3-Clause
 URL:        http://sourceforge.net/projects/openipmi/
 Source:     http://downloads.sourceforge.net/openipmi/%{name}-%{version}.tar.gz
@@ -14,6 +14,7 @@ Source3:    ipmi.service
 Patch1:     0001-man.patch
 Patch2:     OpenIPMI-ax-python.patch
 Patch3:     OpenIPMI-sysconfig.patch
+Patch4: OpenIPMI-c99.patch
 
 BuildRequires: make
 BuildRequires:    gdbm-devel swig glib2-devel net-snmp-devel ncurses-devel
@@ -199,6 +200,9 @@ echo ".so man1/openipmish.1" > %{buildroot}%{_mandir}/man1/ipmish.1
 %{_mandir}/man5/ipmi_sim_cmd.5*
 
 %changelog
+* Mon Jan 08 2024 Florian Weimer <fweimer@redhat.com> - 2.0.32-11
+- Fix C compatibility issues
+
 * Wed Jul 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 2.0.32-10
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild