cmake : skip boringssl tools

Signed-off-by: Adrien Gallouët <[email protected]>

Author: angt

vendor/cpp-httplib/CMakeLists.txt

@@ -30,11 +30,15 @@ if (LLAMA_BUILD_BORINGSSL)
 
     message(STATUS "Fetching BoringSSL version ${BORINGSSL_VERSION}")
 
+    # write an empty file to replace boringssl tool/CMakeLists.txt
+    file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/empty" "")
+
     include(FetchContent)
     FetchContent_Declare(
         boringssl
         GIT_REPOSITORY ${BORINGSSL_GIT}
         GIT_TAG        ${BORINGSSL_VERSION}
+        PATCH_COMMAND  ${CMAKE_COMMAND} -E copy "${CMAKE_CURRENT_BINARY_DIR}/empty" "tool/CMakeLists.txt"
     )
 
     set(SAVED_BUILD_SHARED_LIBS ${BUILD_SHARED_LIBS})