From: Matthias Maier <tamiko@kyomu.43-1.org>
Date: Wed, 13 Nov 2013 17:27:33 +0000 (+0000)
Subject: Add a configure check for a regression with icc-14.0.0 and libstdc++-4.7 in C++11... 
X-Git-Tag: v8.1.0~306
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c421a0123f42ddba6edbdf456fd007835b03e853;p=dealii.git

Add a configure check for a regression with icc-14.0.0 and libstdc++-4.7 in C++11 mode

git-svn-id: https://svn.dealii.org/trunk@31642 0785d39b-7218-0410-832d-ea1e28bc413d
---

diff --git a/deal.II/cmake/checks/check_03_compiler_bugs.cmake b/deal.II/cmake/checks/check_03_compiler_bugs.cmake
index f2cc702cb0..a31f9f4824 100644
--- a/deal.II/cmake/checks/check_03_compiler_bugs.cmake
+++ b/deal.II/cmake/checks/check_03_compiler_bugs.cmake
@@ -314,15 +314,42 @@ CHECK_CXX_COMPILER_BUG(
   "
   DEAL_II_ICC_NUMERICLIMITS_BUG)
 
-IF(DEAL_II_ICC_NUMERICLIMITS_BUG)
+#
+# icc-14.0.0 has an astonishing bug [1] where it hits an internal compiler
+# error when run in C++11 mode with libstdc++-4.7 (from gcc).
+#
+# We just disable C++11 mode in this case
+#
+# [1] http://software.intel.com/en-us/forums/topic/472385
+#
+# - Matthias Maier, 2013
+#
+CHECK_CXX_COMPILER_BUG(
+  "
+  #include <vector>
+  template<typename T> void foo()
+  {
+    std::vector<double> data(100);
+  }
+  int main()
+  {
+    foo<int>();
+  }
+  "
+  DEAL_II_ICC_LIBSTDCPP47CXX11_BUG)
+
+
+IF( DEAL_II_ICC_NUMERICLIMITS_BUG OR
+    DEAL_II_ICC_LIBSTDCPP47CXX11_BUG )
   MESSAGE(STATUS
-    "DEAL_II_ICC_NUMERICLIMITS_BUG found, disabling c++11 support"
+    "Intel C++11 bug found, disabling C++11 support"
     )
   STRIP_FLAG(CMAKE_CXX_FLAGS "${DEAL_II_CXX11_FLAG}")
   SET(DEAL_II_CAN_USE_CXX1X FALSE)
   SET(DEAL_II_USE_CXX11 FALSE)
 ENDIF()
 
+
 #
 # gcc-4.8.1 has some problems with the constexpr "vertices_per_cell" in the
 # definition of alternating_form_at_vertices.