From: Timo Heister <timo.heister@gmail.com>
Date: Fri, 22 Jun 2018 00:59:19 +0000 (-0400)
Subject: cmake check for using and DEAL_II_DEPRECATED
X-Git-Tag: v9.1.0-rc1~896^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F6823%2Fhead;p=dealii.git

cmake check for using and DEAL_II_DEPRECATED

it turns out the intel compiler doesn't like deprecated using:
```
In file included from /ssd/deal-git/source/lac/affine_constraints.cc(16):
/ssd/deal-git/include/deal.II/lac/affine_constraints.h(65): warning #2651: attribute does not apply to any entity
  using ConstraintMatrix DEAL_II_DEPRECATED = AffineConstraints<double>;
```

This updates the cmake check to stop this from happening.
---

diff --git a/cmake/checks/check_02_compiler_features.cmake b/cmake/checks/check_02_compiler_features.cmake
index 56d7e51690..02ca404f4f 100644
--- a/cmake/checks/check_02_compiler_features.cmake
+++ b/cmake/checks/check_02_compiler_features.cmake
@@ -312,6 +312,10 @@ CHECK_CXX_SOURCE_COMPILES(
             [[deprecated]] void test();
           };
 
+          template <int dim>
+          struct foo {};
+          using bar [[deprecated]] = foo<2>;
+
           int main () {}
   "
   DEAL_II_COMPILER_HAS_CXX14_ATTRIBUTE_DEPRECATED
@@ -329,6 +333,10 @@ CHECK_CXX_SOURCE_COMPILES(
             __attribute__((deprecated)) void test();
           };
 
+          template <int dim>
+          struct foo {};
+          using bar __attribute__((deprecated)) = foo<2>;
+
           int main () {}
   "
   DEAL_II_COMPILER_HAS_ATTRIBUTE_DEPRECATED