From b110b2a3cde27a494e8371369456737de0f738be Mon Sep 17 00:00:00 2001
From: Vitaly Zaitsev <vitaly@easycoding.org>
Date: Sun, 4 Jul 2021 17:03:10 +0200
Subject: [PATCH] Backported patch with fmt 8.x build fixes.

---
 spdlog-fmt-8-fixes.patch | 21 +++++++++++++++++++++
 spdlog.spec              |  3 +++
 2 files changed, 24 insertions(+)
 create mode 100644 spdlog-fmt-8-fixes.patch

diff --git a/spdlog-fmt-8-fixes.patch b/spdlog-fmt-8-fixes.patch
new file mode 100644
index 0000000..bc72716
--- /dev/null
+++ b/spdlog-fmt-8-fixes.patch
@@ -0,0 +1,21 @@
+From 1f3bb8df568894d0f9c14785ffb4b41de484b641 Mon Sep 17 00:00:00 2001
+From: Evan Klitzke <evan@eklitzke.org>
+Date: Wed, 23 Jun 2021 11:23:58 -0700
+Subject: [PATCH] Make spdlog_ex::spdlog_ex work with fmt 8.0.0
+
+---
+ include/spdlog/common-inl.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/include/spdlog/common-inl.h b/include/spdlog/common-inl.h
+index c3e992224..5fa4e5d95 100644
+--- a/include/spdlog/common-inl.h
++++ b/include/spdlog/common-inl.h
+@@ -56,7 +56,7 @@ SPDLOG_INLINE spdlog_ex::spdlog_ex(std::string msg)
+ SPDLOG_INLINE spdlog_ex::spdlog_ex(const std::string &msg, int last_errno)
+ {
+     memory_buf_t outbuf;
+-    fmt::format_system_error(outbuf, last_errno, msg);
++    fmt::format_system_error(outbuf, last_errno, msg.c_str());
+     msg_ = fmt::to_string(outbuf);
+ }
diff --git a/spdlog.spec b/spdlog.spec
index 141f271..ffab685 100644
--- a/spdlog.spec
+++ b/spdlog.spec
@@ -8,6 +8,9 @@ License:        MIT
 URL:            https://github.com/gabime/%{name}
 Source0:        %{url}/archive/v%{version}.tar.gz
 
+# https://github.com/gabime/spdlog/issues/1975
+Patch100:       spdlog-fmt-8-fixes.patch
+
 BuildRequires:  catch-devel >= 2.8.0
 BuildRequires:  cmake
 BuildRequires:  fmt-devel >= 7.0.0