Add header patch for GCC 13.

openexr-cstdint.patch

@@ -0,0 +1,12 @@
+Index: openexr-3.1.5/src/bin/exrcheck/main.cpp
+===================================================================
+--- openexr-3.1.5.orig/src/bin/exrcheck/main.cpp
++++ openexr-3.1.5/src/bin/exrcheck/main.cpp
+@@ -13,6 +13,7 @@
+ # include <unistd.h>
+ #endif
+ #include <vector>
++#include <cstdint>
+ 
+ using namespace OPENEXR_IMF_NAMESPACE;
+ using std::cout;

openexr.spec

@@ -10,6 +10,8 @@ License:        BSD
 URL:            https://www.openexr.com/
 Source0:        https://github.com/AcademySoftwareFoundation/%{name}/archive/v%{version}/%{name}-%{version}.tar.gz
 
+Patch0:         openexr-cstdint.patch
+
 BuildRequires:  cmake gcc gcc-c++
 BuildRequires:  boost-devel
 BuildRequires:  imath-devel