Only set the COMPILER_HAS_HIDDEN_VISIBILITY if GCC >= 4.2

Hearsay has it that before that version it didn't work properly.

Hopefully this will fix more dashboard builds.

1 files changed, 1 insertions, 16 deletions

diff --git a/Tests/Module/GenerateExportHeader/CMakeLists.txt b/Tests/Module/GenerateExportHeader/CMakeLists.txt
index 0cc67a9..064b9e3 100644
--- a/Tests/Module/GenerateExportHeader/CMakeLists.txt
+++ b/Tests/Module/GenerateExportHeader/CMakeLists.txt
@@ -76,24 +76,9 @@ macro(_do_build Include Library LibrarySource Source)
   )
 endmacro()
 
-if (CMAKE_COMPILER_IS_GNUCXX)
-  exec_program(${CMAKE_C_COMPILER} ARGS --version OUTPUT_VARIABLE     _gcc_version_info)
-  string (REGEX MATCH "[345]\\.[0-9]\\.[0-9]" _gcc_version "${_gcc_version_info}")
-  # gcc on mac just reports: "gcc (GCC) 3.3 20030304 ..." without the
-  # patch level, handle this here:
-  if(NOT _gcc_version)
-    string (REGEX REPLACE ".*\\(GCC\\).* ([34]\\.[0-9]) .*" "\\1.0" _gcc_version "${_gcc_version_info}")
-  endif()
-
-  if(${_gcc_version} VERSION_LESS "4.2")
-    set(GCC_IS_LESS_THAN_4_2 TRUE)
-    message(WARNING "GCC version older than 4.2. Actual version: ${_gcc_version}")
-  endif()
-endif()
-
 macro(build_fail Include Library LibrarySource Source Message)
   _do_build(${Include} ${Library} ${LibrarySource} "${Source}")
-  if(NOT GCC_IS_LESS_THAN_4_2 AND (USE_COMPILER_HIDDEN_VISIBILITY AND COMPILER_HAS_HIDDEN_VISIBILITY) OR WIN32 OR (${CMAKE_CXX_COMPILER_ID} MATCHES Clang))
+  if(COMPILER_HAS_HIDDEN_VISIBILITY OR WIN32 OR (${CMAKE_CXX_COMPILER_ID} MATCHES Clang))
     test_fail(Result ${Message})
   else()
     test_pass(Result ${Message})