From 7e312f165c5047d6e16680d1eebc83055e95c313 Mon Sep 17 00:00:00 2001
From: Howard Su <howard0su@gmail.com>
Date: Sat, 22 Apr 2023 16:18:20 +0800
Subject: [PATCH] cmake : fix build under Windows when enable BUILD_SHARED_LIBS
 (#1100)

* Fix build under Windows when enable BUILD_SHARED_LIBS

* Make AVX512 test on Windows to build the shared libs
---
 .github/workflows/build.yml | 2 +-
 CMakeLists.txt              | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 7e8a29b1e5fae..b2a35613e04b3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -169,7 +169,7 @@ jobs:
          - build: 'avx'
            defines: '-DLLAMA_AVX2=OFF'
          - build: 'avx512'
-           defines: '-DLLAMA_AVX512=ON'
+           defines: '-DLLAMA_AVX512=ON -DBUILD_SHARED_LIBS=ON'
 
     steps:
       - name: Clone
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2c3c60167fc5b..2d4e30e5a2dea 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -201,6 +201,10 @@ endif()
 
 if (MSVC)
     add_compile_definitions(_CRT_SECURE_NO_WARNINGS)
+
+    if (BUILD_SHARED_LIBS)
+        set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
+    endif()
 endif()
 
 if (LLAMA_LTO)