From 4a275f63206be052f9ab32a35a58681469374ba9 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Mon, 28 Aug 2017 15:15:30 -0400
Subject: bootstrap: Require compiler mode aware of C++11

Some compilers have enough features enabled in their default modes to
pass our simple C++11 unique_ptr check but do not enable enough to build
CMake.  Poison this case so that we choose one of the explicit `-std=`
options for such compilers.
---
 bootstrap | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/bootstrap b/bootstrap
index e543d62..430f53b 100755
--- a/bootstrap
+++ b/bootstrap
@@ -988,8 +988,12 @@ echo '
 #include <iostream>
 #include <memory>
 
-#if __cplusplus >= 201103L && defined(__SUNPRO_CC) && __SUNPRO_CC < 0x5140
-#error "SunPro <= 5.13 C++ 11 mode not supported due to bug in move semantics."
+#if __cplusplus < 201103L
+#error "Compiler is not in a mode aware of C++11."
+#endif
+
+#if defined(__SUNPRO_CC) && __SUNPRO_CC < 0x5140
+#error "SunPro <= 5.13 mode not supported due to bug in move semantics."
 #endif
 
 class Class
-- 
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