commit 9a2ba049809550baea10d2e40529a4b6f45efdfb
author Petr Hosek <phosek@google.com> Fri Dec 06 11:11:31 2019 -0800
committer Copybara-Service <copybara-worker@google.com> Fri Aug 28 01:03:38 2020 -0700
tree cfa19fee87bdaae5b1e6a8edaed300db2d514b37
parent 7814eba58dddc7ff6e6aff6e96ecbaef42ac70f5

[libcxx{,abi}] Don't link libpthread and libdl on Fuchsia

These are a part of the libc so linking these explicitly isn't necessary
and embedding these as deplibs causes link time error.

This issues was introduced in a9b5fff which changed how we emit deplibs.

Differential Revision: https://reviews.llvm.org/D71135

GitOrigin-RevId: 1aa17023819216dae77c7798510f178dae07a57f

cmake/config-ix.cmake

diff --git a/cmake/config-ix.cmake b/cmake/config-ix.cmake
index 496ed34..8892964 100644
--- a/cmake/config-ix.cmake
+++ b/cmake/config-ix.cmake
@@ -71,8 +71,16 @@
 check_cxx_compiler_flag(-nostdinc++ LIBCXXABI_HAS_NOSTDINCXX_FLAG)
 
 # Check libraries
-check_library_exists(dl dladdr "" LIBCXXABI_HAS_DL_LIB)
-check_library_exists(pthread pthread_once "" LIBCXXABI_HAS_PTHREAD_LIB)
-check_library_exists(c __cxa_thread_atexit_impl ""
-  LIBCXXABI_HAS_CXA_THREAD_ATEXIT_IMPL)
-check_library_exists(System write "" LIBCXXABI_HAS_SYSTEM_LIB)
+if(FUCHSIA)
+  set(LIBCXXABI_HAS_DL_LIB NO)
+  set(LIBCXXABI_HAS_PTHREAD_LIB NO)
+  check_library_exists(c __cxa_thread_atexit_impl ""
+    LIBCXXABI_HAS_CXA_THREAD_ATEXIT_IMPL)
+  set(LIBCXXABI_HAS_SYSTEM_LIB NO)
+else()
+  check_library_exists(dl dladdr "" LIBCXXABI_HAS_DL_LIB)
+  check_library_exists(pthread pthread_once "" LIBCXXABI_HAS_PTHREAD_LIB)
+  check_library_exists(c __cxa_thread_atexit_impl ""
+    LIBCXXABI_HAS_CXA_THREAD_ATEXIT_IMPL)
+  check_library_exists(System write "" LIBCXXABI_HAS_SYSTEM_LIB)
+endif()