patch on gloo/types.h (#50784)

* patch on gloo/types.h

* fix patch

* change patch dir

* add patch

cmake/external/gloo.cmake

@@ -41,6 +41,7 @@ if(WITH_GPU)
                            ${native_dst})
   endif()
 endif()
+
 if(CMAKE_COMPILER_IS_GNUCC)
   execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpfullversion -dumpversion
                   OUTPUT_VARIABLE GCC_VERSION)
@@ -53,6 +54,9 @@ if(CMAKE_COMPILER_IS_GNUCC)
          native_dst)
     set(GLOO_PATCH_COMMAND patch -d ${GLOO_SOURCE_DIR}/gloo/transport/tcp <
                            ${native_dst})
+    file(TO_NATIVE_PATH ${PADDLE_SOURCE_DIR}/patches/gloo/types.h.patch
+         types_header)
+    set(GLOO_PATCH_COMMAND patch -d ${GLOO_SOURCE_DIR}/gloo/ < ${types_header})
   endif()
 endif()
 include_directories(${GLOO_INCLUDE_DIR})

patches/gloo/types.h.patch

+diff --git a/gloo/types.h b/gloo/types.h
+index 31e193b..3a8ed74 100755
+--- a/gloo/types.h
++++ b/gloo/types.h
+@@ -319,8 +319,7 @@ inline float cpu_half2float(float16 h) {
+ 
+   unsigned temp = ((sign << 31) | (exponent << 23) | mantissa);
+ 
+-  void* rp = &temp;
+-  return *(float*)rp;
++  return (float)temp;
+ }
+ 
+ } // namespace gloo