diff --git a/net-dialup/lrzsz/files/lrzsz-0.12.20-configure-clang16.patch b/net-dialup/lrzsz/files/lrzsz-0.12.20-configure-clang16.patch
new file mode 100644
index 0000000000000..bda489d11dd4d
--- /dev/null
+++ b/net-dialup/lrzsz/files/lrzsz-0.12.20-configure-clang16.patch
@@ -0,0 +1,13 @@
+https://bugs.gentoo.org/898970
+--- a/configure.in
++++ b/configure.in
+@@ -186,7 +186,8 @@ AC_CACHE_VAL(lrzsz_cv_sys_ftime_ok,
+ #include <sys/types.h>
+ #include <sys/timeb.h>
+ #include <stdio.h>
+-main ()
++#include <stdlib.h>
++int main (void)
+ {
+   struct timeb s, slast;
+   int c = 0;
diff --git a/net-dialup/lrzsz/lrzsz-0.12.20-r4.ebuild b/net-dialup/lrzsz/lrzsz-0.12.20-r5.ebuild
similarity index 92%
rename from net-dialup/lrzsz/lrzsz-0.12.20-r4.ebuild
rename to net-dialup/lrzsz/lrzsz-0.12.20-r5.ebuild
index 9134cf53053f8..ba988723b913f 100644
--- a/net-dialup/lrzsz/lrzsz-0.12.20-r4.ebuild
+++ b/net-dialup/lrzsz/lrzsz-0.12.20-r5.ebuild
@@ -1,9 +1,9 @@
-# Copyright 1999-2021 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
 
-inherit autotools flag-o-matic toolchain-funcs
+inherit autotools toolchain-funcs
 
 DESCRIPTION="Communication package providing the X, Y, and ZMODEM file transfer protocols"
 HOMEPAGE="https://www.ohse.de/uwe/software/lrzsz.html"
@@ -23,6 +23,7 @@ PATCHES=(
 	"${FILESDIR}"/${P}-automake-1.13.patch
 	"${FILESDIR}"/${P}-gettext-0.20.patch
 	"${FILESDIR}"/${P}-AR.patch
+	"${FILESDIR}"/${P}-configure-clang16.patch
 )
 
 DOCS=( AUTHORS COMPATABILITY ChangeLog NEWS \
@@ -43,7 +44,6 @@ src_prepare() {
 
 src_configure() {
 	tc-export CC
-	append-flags -Wstrict-prototypes
 
 	econf $(use_enable nls)
 }