From c1d314a4ab8faf76df552335860f4af32ac495fa Mon Sep 17 00:00:00 2001
From: Nikita Popov <npopov@redhat.com>
Date: Fri, 20 Jan 2023 10:29:43 +0100
Subject: [PATCH] Fix build against GCC 13

---
 ...Explicitly-include-string-header-NFC.patch | 26 +++++++++++++++++++
 libomp.spec                                   |  8 +++++-
 2 files changed, 33 insertions(+), 1 deletion(-)
 create mode 100644 0001-libomp-Explicitly-include-string-header-NFC.patch

diff --git a/0001-libomp-Explicitly-include-string-header-NFC.patch b/0001-libomp-Explicitly-include-string-header-NFC.patch
new file mode 100644
index 0000000..775002e
--- /dev/null
+++ b/0001-libomp-Explicitly-include-string-header-NFC.patch
@@ -0,0 +1,26 @@
+From f2ddf903f588021507faefec15d360edb1e425e5 Mon Sep 17 00:00:00 2001
+From: Nikita Popov <npopov@redhat.com>
+Date: Fri, 20 Jan 2023 10:11:01 +0100
+Subject: [PATCH] [libomp] Explicitly include <string> header (NFC)
+
+This is required to build against libstdc++ 13. Debug.h uses
+std::stoi() from <string> without explicitly including it.
+---
+ openmp/libomptarget/include/Debug.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/openmp/libomptarget/include/Debug.h b/openmp/libomptarget/include/Debug.h
+index 4e7da8b7d53f..387dfe50659e 100644
+--- a/openmp/libomptarget/include/Debug.h
++++ b/openmp/libomptarget/include/Debug.h
+@@ -39,6 +39,7 @@
+ 
+ #include <atomic>
+ #include <mutex>
++#include <string>
+ 
+ /// 32-Bit field data attributes controlling information presented to the user.
+ enum OpenMPInfoType : uint32_t {
+-- 
+2.39.0
+
diff --git a/libomp.spec b/libomp.spec
index 6435535..0b42cdf 100644
--- a/libomp.spec
+++ b/libomp.spec
@@ -14,7 +14,7 @@
 
 Name: libomp
 Version: %{libomp_version}%{?rc_ver:~rc%{rc_ver}}
-Release: 2%{?dist}
+Release: 3%{?dist}
 Summary: OpenMP runtime for clang
 
 License: NCSA
@@ -25,6 +25,9 @@ Source2: release-keys.asc
 Source3: run-lit-tests
 Source4: lit.fedora.cfg.py
 
+# TODO: Not needed with LLVM 16.
+Patch1: 0001-libomp-Explicitly-include-string-header-NFC.patch
+
 BuildRequires: clang
 # For clang-offload-packager
 BuildRequires: clang-tools-extra
@@ -160,6 +163,9 @@ rm -rf %{buildroot}%{_libdir}/libarcher_static.a
 %{_libexecdir}/tests/libomp/
 
 %changelog
+* Fri Jan 20 2023 Nikita Popov <npopov@redhat.com> - 15.0.7-3
+- Fix build against GCC 13
+
 * Thu Jan 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 15.0.7-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild