diff --git a/fix-default-enable-RTTI-in-1.1.9.patch b/fix-default-enable-RTTI-in-1.1.9.patch
new file mode 100644
index 0000000000000000000000000000000000000000..9966766e4475d5ced980dc68121875589b84a3d6
--- /dev/null
+++ b/fix-default-enable-RTTI-in-1.1.9.patch
@@ -0,0 +1,59 @@
+From f73b11e87dfbe1cb4862b8ee489679d99534f40b Mon Sep 17 00:00:00 2001
+From: Tim Serong <tserong@suse.com>
+Date: Wed, 27 Oct 2021 18:49:04 +1100
+Subject: [PATCH] Re-enable RTTI (needed in order to subclass Source, etc.)
+
+Commit c98344f in snappy 1.1.9 disabled RTTI, which means the
+snappy library no longer exports typeinfo for snappy::Source,
+snappy::Sink, ..., so users of the library can't subclass these
+classes anymore.
+
+Here's a trivial reproducer:
+
+  #include <snappy-sinksource.h>
+  class MySource : snappy::Source {
+  public:
+    size_t Available() const override { return 0; }
+    const char *Peek(size_t *len) override { return NULL; }
+    void Skip(size_t n) override {}
+  };
+  int main(int argc, char **argv) {
+    MySource m;
+    return 0;
+  }
+
+Try `g++ -o snappy-test ./snappy-test.cc -lsnappy` with the above
+and the linker will fail with "undefined reference to `typeinfo
+for snappy::Source'" if RTTI was disabled in the snappy build.
+
+---
+ CMakeLists.txt | 6 ------
+ 1 file changed, 6 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 672561e..a4b2cc7 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -52,9 +52,6 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHs-c-")
+   add_definitions(-D_HAS_EXCEPTIONS=0)
+ 
+-  # Disable RTTI.
+-  string(REGEX REPLACE "/GR" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /GR-")
+ else(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+   # Use -Wall for clang and gcc.
+   if(NOT CMAKE_CXX_FLAGS MATCHES "-Wall")
+@@ -77,9 +74,6 @@ else(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+   string(REGEX REPLACE "-fexceptions" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions")
+ 
+-  # Disable RTTI.
+-  string(REGEX REPLACE "-frtti" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
+ endif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+ 
+ # BUILD_SHARED_LIBS is a standard CMake variable, but we declare it here to make
+-- 
+2.24.4
+
diff --git a/snappy.spec b/snappy.spec
index 79d3e8a7420f3b60f0ac348b2693d7df1b578915..73ad8a4e016e32899fc91d52082eba2f212506ee 100644
--- a/snappy.spec
+++ b/snappy.spec
@@ -1,6 +1,6 @@
 Name:		snappy
 Version:	1.1.9
-Release:	1
+Release:	2
 Summary:	A fast compressor/decompressor
 License:	BSD
 URL:		https://github.com/google/snappy
@@ -9,6 +9,7 @@ Source1:	snappy.pc
 
 Patch0:		remove-dependency-on-google-benchmark-and-gmock.patch
 Patch1:		fix-the-AdvanceToNextTag-fails-to-be-compiled-without-inline.patch
+Patch2:		fix-default-enable-RTTI-in-1.1.9.patch
 
 BuildRequires:	gcc-c++ make gtest-devel cmake
 
@@ -69,6 +70,9 @@ make test
 %doc NEWS README.md
 
 %changelog
+* Tue Jun 21 2022 wangzengliang<wangzengliang1@huawei.com> - 1.1.9-2
+- default enable RTTI
+
 * Fri Dec 24 2021 yuanxin<yuanxin24@huawei.com> - 1.1.9-1
 - update version to 1.1.9