diff --git a/fix-splice-signature.patch b/fix-splice-signature.patch
new file mode 100644
index 0000000..6c95d89
--- /dev/null
+++ b/fix-splice-signature.patch
@@ -0,0 +1,22 @@
+submitted as https://pagure.io/libaio/issue/21
+
+--- libaio-libaio-0.3.113.orig/harness/cases/23.t
++++ libaio-libaio-0.3.113/harness/cases/23.t
+@@ -72,7 +72,7 @@ static void fail_errno(const char *forma
+ static void *thrproc2(void *arg)
+ {
+ 	for (;;) {
+-		off_t offset = 0;
++		off64_t offset = 0;
+ 
+ 		pthread_barrier_wait(&barrier);
+ 		if (exiting)
+@@ -92,7 +92,7 @@ static void *thrproc3(void *arg)
+ {
+ 	for (;;) {
+ 		char c;
+-		off_t offset = 0;
++		off64_t offset = 0;
+ 
+ 		pthread_barrier_wait(&barrier);
+ 		if (exiting)
diff --git a/libaio.changes b/libaio.changes
index 8454d39..5ce764d 100644
--- a/libaio.changes
+++ b/libaio.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Jul 12 15:18:49 UTC 2022 - Dirk Müller <dmueller@suse.com>
+
+- add fix-splice-signature.patch to fix build on 32bit
+
 -------------------------------------------------------------------
 Thu Apr 28 21:17:32 UTC 2022 - Dirk Müller <dmueller@suse.com>
 
diff --git a/libaio.spec b/libaio.spec
index d638a90..216ff06 100644
--- a/libaio.spec
+++ b/libaio.spec
@@ -26,6 +26,7 @@ Group:          Development/Libraries/C and C++
 URL:            https://pagure.io/libaio
 Source:         https://pagure.io/libaio/archive/libaio-%{version}/libaio-libaio-%{version}.tar.gz
 Source2:        baselibs.conf
+Patch1:         fix-splice-signature.patch
 
 %description
 The Linux-native asynchronous I/O facility ("async I/O", or "aio") has
@@ -62,16 +63,17 @@ with, for the Linux-native asynchronous I/O facility ("async I/O", or
 
 %prep
 %setup -q -n %{name}-%{name}-%{version}
+%patch1 -p1
 
 %build
-make %{?_smp_mflags} OPTFLAGS="%{optflags}"
+%make_build OPTFLAGS="%{optflags}"
 
 %install
 %make_install libdir=%{_libdir}
 rm %{buildroot}%{_libdir}/*.a
 
 %check
-make %{?_smp_mflags} partcheck
+%make_build OPTFLAGS="%{optflags}" partcheck
 
 %post -n %{lname} -p /sbin/ldconfig
 %postun -n %{lname} -p /sbin/ldconfig