Fix eigen multiple definition (#54812)

chalsliu · web-flow · commit ba09621a45bb · 2023-06-26T11:12:30.000+08:00
diff --git a/cmake/external/eigen.cmake b/cmake/external/eigen.cmake
@@ -40,6 +40,13 @@ elseif(LINUX)
 endif()
 
 if(CMAKE_COMPILER_IS_GNUCC)
+  file(TO_NATIVE_PATH ${PADDLE_SOURCE_DIR}/patches/eigen/TensorRandom.h.patch
+       tensor_random_header)
+  # See: [Why calling some `git` commands before `patch`?]
+  set(EIGEN_PATCH_COMMAND
+      git checkout -- . && git checkout ${EIGEN_TAG} && patch -Nd
+      ${SOURCE_DIR}/unsupported/Eigen/CXX11/src/Tensor <
+      ${tensor_random_header})
   execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpfullversion -dumpversion
                   OUTPUT_VARIABLE GCC_VERSION)
   string(REGEX MATCHALL "[0-9]+" GCC_VERSION_COMPONENTS ${GCC_VERSION})
@@ -49,9 +56,8 @@ if(CMAKE_COMPILER_IS_GNUCC)
   if(GCC_VERSION GREATER_EQUAL "12.0")
     file(TO_NATIVE_PATH ${PADDLE_SOURCE_DIR}/patches/eigen/Complex.h.patch
          complex_header)
-    # See: [Why calling some `git` commands before `patch`?]
     set(EIGEN_PATCH_COMMAND
-        git checkout -- . && git checkout ${EIGEN_TAG} && patch -Nd
+        ${EIGEN_PATCH_COMMAND} && patch -Nd
         ${SOURCE_DIR}/Eigen/src/Core/arch/SSE/ < ${complex_header})
   endif()
 endif()
diff --git a/patches/eigen/TensorRandom.h.patch b/patches/eigen/TensorRandom.h.patch
@@ -0,0 +1,11 @@
+--- a/unsupported/Eigen/CXX11/src/Tensor/TensorRandom.h
++++ b/unsupported/Eigen/CXX11/src/Tensor/TensorRandom.h
+@@ -16,7 +16,7 @@ namespace internal {
+ 
+ namespace {
+ 
+-EIGEN_DEVICE_FUNC uint64_t get_random_seed() {
++static EIGEN_DEVICE_FUNC uint64_t get_random_seed() {
+ #if defined(EIGEN_GPU_COMPILE_PHASE)
+   // We don't support 3d kernels since we currently only use 1 and
+   // 2d kernels.
