commit d68f00e4d8b061f56d3bd46d5ed1bc51406a4f1a
author Joel Winarske <joel.winarske@gmail.com> Fri Mar 16 12:14:27 2018 -0700
committer Ebrahim Byagowi <ebrahim@gnu.org> Fri Mar 16 22:44:27 2018 +0330
tree 2eb6cbbe247cf5814e726e698414517d261a69c3
parent 42d3271cc39050c9df5f8c7345322ae90592158e

Do feature test before adding -Bsymbolic-functions, cmake part (#889)

CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5ddc15a..85709b2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -537,7 +537,11 @@
 
 if (UNIX OR MINGW)
   # Make symbols link locally
-  link_libraries(-Bsymbolic-functions)
+  include(CheckCXXCompilerFlag)
+  check_cxx_compiler_flag(-Bsymbolic-functions CXX_SUPPORTS_FLAG_BSYMB_FUNCS)
+  if(CXX_SUPPORTS_FLAG_BSYMB_FUNCS)
+    link_libraries(-Bsymbolic-functions)
+  endif()  
 
   if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     # Make sure we don't link to libstdc++