Supress -Wimplicit-fallthrough and -Wsign-conversion when including fmt headers

include/spdlog/fmt/fmt.h

@@ -10,6 +10,12 @@
 // By default spdlog include its own copy.
 //
 
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
+#pragma GCC diagnostic ignored "-Wsign-conversion"
+
+
 #if !defined(SPDLOG_FMT_EXTERNAL)
 #ifdef SPDLOG_HEADER_ONLY
 #ifndef FMT_HEADER_ONLY
@@ -25,3 +31,4 @@
 #include <fmt/core.h>
 #include <fmt/format.h>
 #endif
+#pragma GCC diagnostic pop

src/fmt.cpp

@@ -6,9 +6,17 @@
 // Copyright (c) 2012 - 2016, Victor Zverovich
 // All rights reserved.
 
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
+#pragma GCC diagnostic ignored "-Wsign-conversion"
+
 #if !defined(SPDLOG_FMT_EXTERNAL)
 #include "spdlog/fmt/bundled/format-inl.h"
 
+#pragma GCC diagnostic pop
+
+
 
 FMT_BEGIN_NAMESPACE
 template struct FMT_API internal::basic_data<void>;