From 56efc60fa0b9ef067d4b5648e43136b250872088 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Mon, 17 Jan 2011 17:21:30 -0500
Subject: [PATCH] Honor CMAKE_TRY_COMPILE_CONFIGURATION in Makefile generators
 (#10809)

Previously this was used only in multi-configuration generators to
choose the configuration of try_compile and try_run at their build time.
Teach CMake to honor the variable in single-configuration generators as
the CMAKE_BUILD_TYPE.
---
 Source/cmMakefile.cxx | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index 53f4c3cb1..43a7ae010 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -2717,6 +2717,18 @@ int cmMakefile::TryCompile(const char *srcdir, const char *bindir,
   cm.SetStartOutputDirectory(bindir);
   cm.SetCMakeCommand(cmakeCommand.c_str());
   cm.LoadCache();
+  if(!gg->IsMultiConfig())
+    {
+    if(const char* config =
+       this->GetDefinition("CMAKE_TRY_COMPILE_CONFIGURATION"))
+      {
+      // Tell the single-configuration generator which one to use.
+      // Add this before the user-provided CMake arguments in case
+      // one of the arguments is -DCMAKE_BUILD_TYPE=...
+      cm.AddCacheEntry("CMAKE_BUILD_TYPE", config,
+                       "Build configuration", cmCacheManager::STRING);
+      }
+    }
   // if cmake args were provided then pass them in
   if (cmakeArgs)
     {