fix build with GCC-11

libebml-gcc11.patch

@@ -0,0 +1,22 @@
+diff -up libebml-1.4.2/src/EbmlString.cpp.gcc11 libebml-1.4.2/src/EbmlString.cpp
+--- libebml-1.4.2/src/EbmlString.cpp.gcc11	2021-02-18 12:42:59.000000000 +0100
++++ libebml-1.4.2/src/EbmlString.cpp	2021-03-01 11:42:02.122854703 +0100
+@@ -34,6 +34,7 @@
+   \author Steve Lhomme     <robux4 @ users.sf.net>
+ */
+ #include <cassert>
++#include <limits>
+ 
+ #include "ebml/EbmlString.h"
+ 
+diff -up libebml-1.4.2/src/EbmlUnicodeString.cpp.gcc11 libebml-1.4.2/src/EbmlUnicodeString.cpp
+--- libebml-1.4.2/src/EbmlUnicodeString.cpp.gcc11	2021-03-01 11:42:02.121854696 +0100
++++ libebml-1.4.2/src/EbmlUnicodeString.cpp	2021-03-01 11:42:21.772995170 +0100
+@@ -36,6 +36,7 @@
+ */
+ 
+ #include <cassert>
++#include <limits>
+ 
+ #include "ebml/EbmlUnicodeString.h"
+ 

libebml.spec

@@ -6,6 +6,8 @@ License:    LGPLv2+
 URL:        https://www.matroska.org/
 Source:     https://dl.matroska.org/downloads/%{name}/%{name}-%{version}.tar.xz
 Patch0:     %{name}-use-system-utf8cpp.patch
+# https://github.com/Matroska-Org/libebml/pull/81
+Patch1:     %{name}-gcc11.patch
 BuildRequires: cmake3
 BuildRequires: gcc-c++
 BuildRequires: utf8cpp-devel
@@ -34,6 +36,7 @@ will use the Extensible Binary Meta Language library.
 %prep
 %setup -q
 %patch0 -p1 -b .utf8cpp
+%patch1 -p1 -b .gcc11
 rm -r src/lib/utf8-cpp
 
 
@@ -69,6 +72,7 @@ rm -r src/lib/utf8-cpp
 * Wed Feb 24 2021 Dominik Mierzejewski <rpm@greysector.net> - 1.4.2-1
 - update to 1.4.2 (#1930172)
 - fixes CVE-2021-3405 (#1926991)
+- fix build with GCC-11
 
 * Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.4.1-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild