[libcxx-commits] [PATCH] D71641: [unwind] Don't link libpthread and libdl on Fuchsia

[Petr Hosek via Phabricator via libcxx-commits]

phosek created this revision.
phosek added a reviewer: leonardchan.
Herald added subscribers: libcxx-commits, jfb, christof, mgorny.
Herald added a project: libc++.

This is a follow up to D71135 <https://reviews.llvm.org/D71135>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D71641

Files:
  libunwind/cmake/config-ix.cmake


Index: libunwind/cmake/config-ix.cmake
===================================================================
--- libunwind/cmake/config-ix.cmake
+++ libunwind/cmake/config-ix.cmake
@@ -71,10 +71,6 @@
 # Check compiler flags
 check_cxx_compiler_flag(-nostdinc++ LIBUNWIND_HAS_NOSTDINCXX_FLAG)
 
-# Check libraries
-check_library_exists(dl dladdr "" LIBUNWIND_HAS_DL_LIB)
-check_library_exists(pthread pthread_once "" LIBUNWIND_HAS_PTHREAD_LIB)
-
 # Check symbols
 check_symbol_exists(__arm__ "" LIBUNWIND_TARGET_ARM)
 check_symbol_exists(__USING_SJLJ_EXCEPTIONS__ "" LIBUNWIND_USES_SJLJ_EXCEPTIONS)
@@ -84,3 +80,12 @@
   # This condition is copied from __libunwind_config.h
   set(LIBUNWIND_USES_ARM_EHABI ON)
 endif()
+
+# Check libraries
+if(FUCHSIA)
+  set(LIBUNWIND_HAS_DL_LIB NO)
+  set(LIBUNWIND_HAS_PTHREAD_LIB NO)
+else()
+  check_library_exists(dl dladdr "" LIBUNWIND_HAS_DL_LIB)
+  check_library_exists(pthread pthread_once "" LIBUNWIND_HAS_PTHREAD_LIB)
+endif()


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