From b262406b0a75e39276c11f70ef1174981aa31b51 Mon Sep 17 00:00:00 2001
From: ROUVREAU Vincent <vincent.rouvreau@inria.fr>
Date: Tue, 17 Mar 2020 17:57:17 +0100
Subject: Remove thread_local workaround

---
 src/cmake/modules/GUDHI_compilation_flags.cmake | 37 -------------------------
 1 file changed, 37 deletions(-)

(limited to 'src/cmake')

diff --git a/src/cmake/modules/GUDHI_compilation_flags.cmake b/src/cmake/modules/GUDHI_compilation_flags.cmake
index 34c2e065..567fbc40 100644
--- a/src/cmake/modules/GUDHI_compilation_flags.cmake
+++ b/src/cmake/modules/GUDHI_compilation_flags.cmake
@@ -1,7 +1,6 @@
 # This files manage compilation flags required by GUDHI
 
 include(TestCXXAcceptsFlag)
-include(CheckCXXSourceCompiles)
 
 # add a compiler flag only if it is accepted
 macro(add_cxx_compiler_flag _flag)
@@ -12,32 +11,6 @@ macro(add_cxx_compiler_flag _flag)
   endif()
 endmacro()
 
-function(can_cgal_use_cxx11_thread_local)
-  # This is because of https://github.com/CGAL/cgal/blob/master/Installation/include/CGAL/tss.h
-  # CGAL is using boost thread if thread_local is not ready (requires XCode 8 for Mac).
-  # The test in https://github.com/CGAL/cgal/blob/master/Installation/include/CGAL/config.h
-  #   #if __has_feature(cxx_thread_local) || \
-  #       ( (__GNUC__ * 100 + __GNUC_MINOR__) >= 408 && __cplusplus >= 201103L ) || \
-  #       ( _MSC_VER >= 1900 )
-  #   #define CGAL_CAN_USE_CXX11_THREAD_LOCAL
-  #   #endif
-  set(CGAL_CAN_USE_CXX11_THREAD_LOCAL "
-      int main() {
-      #ifndef __has_feature
-        #define __has_feature(x) 0  // Compatibility with non-clang compilers.
-      #endif
-      #if __has_feature(cxx_thread_local) || \
-          ( (__GNUC__ * 100 + __GNUC_MINOR__) >= 408 && __cplusplus >= 201103L ) || \
-          ( _MSC_VER >= 1900 )
-        bool has_feature_thread_local = true;
-      #else
-        // Explicit error of compilation for CMake test purpose - has_feature_thread_local is not defined
-      #endif
-        bool result = has_feature_thread_local;
-      }  ")
-  check_cxx_source_compiles("${CGAL_CAN_USE_CXX11_THREAD_LOCAL}" CGAL_CAN_USE_CXX11_THREAD_LOCAL_RESULT)
-endfunction()
-
 set (CMAKE_CXX_STANDARD 14)
 
 enable_testing()
@@ -58,16 +31,6 @@ if (DEBUG_TRACES)
   add_definitions(-DDEBUG_TRACES)
 endif()
 
-set(GUDHI_CAN_USE_CXX11_THREAD_LOCAL "
-    int main() {
-      thread_local int result = 0;
-      return result;
-    }  ")
-check_cxx_source_compiles("${GUDHI_CAN_USE_CXX11_THREAD_LOCAL}" GUDHI_CAN_USE_CXX11_THREAD_LOCAL_RESULT)
-if (GUDHI_CAN_USE_CXX11_THREAD_LOCAL_RESULT)
-  add_definitions(-DGUDHI_CAN_USE_CXX11_THREAD_LOCAL)
-endif()
-
 if(CMAKE_BUILD_TYPE MATCHES Debug)
   message("++ Debug compilation flags are: ${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_DEBUG}")
 else()
-- 
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