!2 修改由于gcc升级导致编译失败问题。

From: @liheavy
Reviewed-by: @myeuler
Signed-off-by: @myeuler

fix-compilation-failed.patch

@@ -0,0 +1,34 @@
+diff -Nur a/include/flatbuffers/base.h b/include/flatbuffers/base.h
+--- a/include/flatbuffers/base.h	2018-10-04 03:48:47.000000000 +0800
++++ b/include/flatbuffers/base.h	2021-08-02 19:48:18.468933100 +0800
+@@ -266,13 +266,30 @@
+   return EndianScalar(*reinterpret_cast<const T *>(p));
+ }
+ 
++#if defined(__GNUC__) && !defined(__clang__)
++  #define FLATBUFFERS_GCC (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
++#else
++  #define FLATBUFFERS_GCC 0
++#endif
++
++// See https://github.com/google/flatbuffers/issues/5950
++#if (FLATBUFFERS_GCC >= 100000) && (FLATBUFFERS_GCC < 110000)
++  #pragma GCC diagnostic push
++  #pragma GCC diagnostic ignored "-Wstringop-overflow"
++#endif
++
+ template<typename T> void WriteScalar(void *p, T t) {
+   *reinterpret_cast<T *>(p) = EndianScalar(t);
+ }
+ 
++#if (FLATBUFFERS_GCC >= 100000) && (FLATBUFFERS_GCC < 110000)
++  #pragma GCC diagnostic pop
++#endif
++
+ // Computes how many bytes you'd have to pad to be able to write an
+ // "scalar_size" scalar if the buffer had grown to "buf_size" (downwards in
+ // memory).
++
+ inline size_t PaddingBytes(size_t buf_size, size_t scalar_size) {
+   return ((~buf_size) + 1) & (scalar_size - 1);
+ }

flatbuffers.spec

@@ -5,15 +5,18 @@
 %endif
 Name:                flatbuffers
 Version:             1.10.0
-Release:             1
+Release:             2
 Summary:             Memory efficient serialization library
 License:             Apache-2.0
 URL:                 https://github.com/google/flatbuffers
 Source0:             https://github.com/google/flatbuffers/archive/v%{version}/%{name}-%{version}.tar.gz
 Source1:             flatc.1
 Source2:             flatbuffers.7
+
 Patch0:              0001-generate-gcc-pragmas-to-ignore-Wclass-memaccess.patch
 Patch1:              Handle-git-program-or-.git-folder-absence.patch
+Patch2:              fix-compilation-failed.patch
+
 BuildRequires:       gcc-c++ cmake >= 2.8.9
 Provides:            bundled(grpc)
 %description
@@ -70,5 +73,8 @@ make test
 %{_libdir}/cmake/flatbuffers/*.cmake
 
 %changelog
+* Mon Aug 2 2021 Haiwei Li <lihaiwei8@huawei.com> - 1.10.0-2
+- Fix complication failed due to gcc upgrade
+
 * Mon Jan 11 2021 yanan li <liyanan32@huawei.com> - 1.10.0-1
 - Package init