adding warning for Eigen version < 3.3.0

where compilation errors can occur in models with complex parameters.
FlexibleSUSY · Jun 27, 2017 · 02401ee · 02401ee
1 parent 3b15fab
commit 02401ee
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/configure b/configure
@@ -1575,6 +1575,12 @@ int main() {
 
     result "ok (version ${eigen_version})"
     logmsg "   Eigen version found: ${eigen_version}"
+
+    version_at_least "$eigen_version" "3.3.0" || {
+        message "Warning: You are using Eigen ${eigen_version}."
+        message "   Compliation errors can occur with this Eigen version in models with"
+        message "   complex parameters. We recommend to upgrade to Eigen 3.3.0 at least."
+    }
 }
 
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