diff --git a/net-dialup/freeradius-client/files/freeradius-client-1.1.7-configure-clang16.patch b/net-dialup/freeradius-client/files/freeradius-client-1.1.7-configure-clang16.patch
new file mode 100644
index 0000000000000..58cf78c6ff231
--- /dev/null
+++ b/net-dialup/freeradius-client/files/freeradius-client-1.1.7-configure-clang16.patch
@@ -0,0 +1,17 @@
+https://src.fedoraproject.org/rpms/freeradius-client/c/12ee8b567ce2a1b6637ad01e5806a15eeef410cc?branch=rawhide
+
+Add return type to main for autoconf check for C99 compliance.
+https://github.com/FreeRADIUS/freeradius-client/issues/113
+
+--- a/configure.in
++++ b/configure.in
+@@ -212,7 +212,7 @@ then
+ 	AC_TRY_RUN([
+ 	#include <sys/utsname.h>
+ 	
+-	main(int argc, char **argv)
++	int main(int argc, char **argv)
+ 	{
+ 		struct utsname uts;
+ 		uts.domainname[0] = '\0';
+
diff --git a/net-dialup/freeradius-client/freeradius-client-1.1.7-r2.ebuild b/net-dialup/freeradius-client/freeradius-client-1.1.7-r3.ebuild
similarity index 92%
rename from net-dialup/freeradius-client/freeradius-client-1.1.7-r2.ebuild
rename to net-dialup/freeradius-client/freeradius-client-1.1.7-r3.ebuild
index 447e44887dd1b..45d79ae7e6abf 100644
--- a/net-dialup/freeradius-client/freeradius-client-1.1.7-r2.ebuild
+++ b/net-dialup/freeradius-client/freeradius-client-1.1.7-r3.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2021 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -28,6 +28,7 @@ DOCS=(
 
 PATCHES=(
 	"${FILESDIR}/${PN}-1.1.7-ar-configure.in.patch"
+	"${FILESDIR}/${PN}-1.1.7-configure-clang16.patch"
 )
 
 src_prepare() {